CN2351557Y

CN2351557Y - Efficient reliable ball collecting net

Info

Publication number: CN2351557Y
Application number: CN 98204549
Authority: CN
Inventors: 寇天仲; 张兰英
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-18
Filing date: 1998-05-18
Publication date: 1999-12-01
Anticipated expiration: 2008-05-18

Abstract

The utility model relates to an efficient reliable ball collecting net used for a rubber ball cleaning device of a steam condenser. Connecting plates which are fixed on a rotation shaft are adopted to be connected with movable net plates; a semicircular head-shaped partition plate is additionally arranged in the middle of the two movable net plates; the two ends of the partition plate are connected with a housing; an observation window is added on an extraction tube of a rubber ball; a half arc-shaped mandible ring is connected with the inner wall of the housing along the lower side of the contacting position of a recovering bucket and the housing. Through the structure, an overlarge gap generating an escaping losing rubber ball is eliminated to cause a ball collecting rate to achieve more than 98 percent and to cause long-term reliable use.

Description

New and effective reliable ball screen

The utility model relates to equipment in the ball cleaning apparatus of condenser of thermal power plant, it is installed in vapour condenser circulating water outlet pipe place, is used to reclaim glueballs and uses for purging system recirculation.

At present, the ball screen pattern that the power station uses is a lot, and the most extensively adopting is SF type ball screen (seeing power industry standard DL/T581-95, ball cleaning apparatus of condenser and circulating water secondary filter).SF type ball screen is when receiving spherical attitude, driving two movable screens by an electronic execution machine by driving mechanism rotates, the top edge of two movable screens is coincide, lower limb and outer casing inner wall are adjacent to, make two movable screens be the ∧ type, at this moment, glueballs is stopped along the net bar by web plate and goes into confession recirculation use through glueballs fairlead suction Rubber ball pump.SF type ball screen is using initial stage, receive ball efficient and can also reach standard, then just descend gradually, very cause and be forced to stop using, its main cause is that movable screen and transmission shaft adopt type axis plate Placement, is easy to generate looseningly, causes movable screen top edge and lower limb excessive gap to occur, particularly the gap of top edge is 2 times of lower limb gap, and glueballs is run away from here.

The purpose of this utility model provide a kind of on original SF type ball screen improved ball screen, can improve receive ball efficient more than 98%, and can come into operation for a long time.

The purpose of this utility model is achieved in that rotatingshaft and connecting plate fuse, slab strip adoption bolt on connecting plate and the movable screen is tightened, make connecting plate and movable screen be tightened to one, can not produce loosening, also increased the rigidity of movable screen, in the top edge anastomosis of two movable screens a space bar that is fixed on the cup head on the outer casing inner wall is set, makes herein and can not produce big gap.Reclaiming bucket and the following one and half arc lower jaw rings that are connected in the contacting point of outer casing inner wall.On the glueballs fairlead viewing window is set, situation in equipment operation, by the adjusting screw rod of driving mechanism, just can be eliminated the gap that may occur according to the observation.

The utility model makes ball screen bring up to ball collecting rate more than 98% owing to adopt above-mentioned improvement project, can put into operation for a long time reliability of raising equipment of equipment.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is vertical section structure figure of the present utility model

Fig. 2 is the plan view of Fig. 1

Fig. 3 is the space bar amplification assumption diagram

Fig. 4 is viewing window and lower jaw ring structure for amplifying and key plan

Fig. 1 Fig. 2 is a novel everywhere structure of the present utility model: the electronic execution machine (14) that is installed on the shell (3) drives two movable screens (2) rotation by driving mechanism (15) and rotatingshaft (4), movable screen (2) adopts connecting plate (5) to be connected with rotatingshaft (4), press on the spacing fixed bias circuit (4) of slab bar with the quantity connecting plate (5) identical, connecting plate and movable screen (2) are tightened together with 4-5 bolt (10) on the every connecting plate with the slab bar; The space bar of semicircle capitiform (1) is arranged between two movable screens (2) top edge: have viewing window on glueballs fairlead (7); On shell (3) and the following inwall of glueballs fairlead (7), be connected half arc lower jaw ring (13).

For being positioned at the structure of the space bar (1) between two movable screens (2), it is to be formed by connecting by the Stainless Steel Tube of semicircle (17) and corrosion resistant plate shown in Fig. 3, and its length equates with shell (3) internal diameter, and two ends company presses in the enclosure on the wall.

Viewing window shown in Fig. 4 is to be made of plexiglass (11) pressure ring (12) O-ring seal (9) and protective cover (6).In service at ball screen, reduce as finding ball collecting rate, can open protective cover; whether watch excesssive gap, still stop up glueballs, the adjusting of the adjusting screw rod (16) by driving mechanism just can be eliminated the gap; draw valve on the pipeline by switch glueballs repeatedly, just can dredge the glueballs of obstruction.The lower jaw ring (13) of half arc tilts to be connected on the inwall of shell (3) along the outward edge that recovery bucket (8) contacts with shell (3), and rotating with not overslaugh movable screen is the optimum position.

Claims

1. new and effective reliable ball screen, it is characterized in that being equipped with on the rotatingshaft (4) and connecting plate (5) that rotatingshaft (4) links into an integrated entity, connecting plate (5) is connected with bolt with movable screen (2), increase in two movable screens (2) top edge neutral position and to adorn a semicircle capitiform space bar (1), on glueballs fairlead (7), increase the dress viewing window, on the inwall of shell (3), increase the lower jaw ring (13) of adorning half arc.

2. new and effective reliable ball screen according to claim 1 is characterized in that the quantity of the connecting plate (5) on the rotatingshaft (4) is identical with slab bar on the movable screen (2), and connecting plate (5) is connected with bolt with slab bar on the movable screen (2).

3. new and effective reliable ball screen according to claim 1 is characterized in that the two ends that are positioned at the middle semicircle capitiform space bar (1) of two movable screens (2) top edge are connected on the inwall of shell (3).

4. new and effective reliable ball screen according to claim 1 is characterized in that increasing the viewing window of dress on glueballs fairlead (7), it is by seal ring (9), plexiglass (11), pressure ring (12) and protective cover (6) formation that is linked in sequence.

5. new and effective reliable ball screen according to claim 1 is characterized in that half arc lower jaw ring (13) is on the following oblique inwall that is connected shell (3) that reclaims bucket (8) and shell (3) inwall contacting point.