CN201216898Y

CN201216898Y - Double-spoke roll wheel support type cydariform rotary filtering-net

Info

Publication number: CN201216898Y
Application number: CNU200820029698XU
Authority: CN
Inventors: 马元锦
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-11
Filing date: 2008-07-11
Publication date: 2009-04-08
Anticipated expiration: 2018-07-11

Abstract

Disclosed is a double-spoke roller support type rotary drum filter screen which is composed of an outer screen component, support spokes, a hollow rotary shaft, a draining groove, a support base, support roller wheels, a scoop net component, a reinforced pipe, a transmission gear, a backwashing water pipe and a side screen. Both ends of the outer screen component are supported by the two support spokes; the scoop net component is arranged between the support spokes and reinforced by the reinforced pipe; the hollow rotary shaft is arranged in the center of the support spokes; the draining groove is arranged in the hollow rotary shaft; the draining groove is fixed on the support base; the support base is fixed on the foundation; the whole filter screen is positioned and supported by two groups of support roller wheels which are fixed on the foundation through the hollow rotary shaft; the transmission gear is mounted on the hollow rotary shaft; the backwashing water pipe is mounted on the top part of the drum screen; the side screen is fixed on one side end of the support spokes; the outer screen component double-support is adopted to ensure the structural stability; the combination of central draining and backwashing is the key of guaranteeing the scoop net draining, outer screen double-support and the roller wheel support; the complete and thorough automatic draining can be realized easily; the equipment investment is saved due to the design while the cost is reduced.

Description

Two-wheel spoke running roller brace type cydariform rotary sieve

Technical field

The utility model belongs to large-scale equipment for filtering water, particularly a kind of two-wheel spoke running roller brace type cydariform rotary sieve.

Background technology

In recent years, along with the construction and the input of overcritical, ultra supercritical heavy-duty generator group and nuclear power heavy-duty generator group, the separate unit unit is in great demand to cooling water, has now reached 35m ³More than/the s; The board-like rotary sieve that is widely used at present (abbreviation expanded metals) can't do more owing to structural restriction, does not satisfy the demand of filtering big flow cooling water source.For addressing the above problem the second generation product that released one after another, a kind of large-scale water filter, i.e. the appearance of cydariform rotary sieve (being called for short the drum net) has overcome the deficiency of expanded metals, has realized the demand that big flow cooling water source is filtered.As national key scientific and technological project-drum type filter screen of developing by Shenyang Electric Power Machinery GEneral Plant, the drum type filter screen of eight diameter 19m formally put into operation at Qinshan second nuclear power station in calendar year 2001, this product complete machine design and fabrication technology is leading at home, has filled up the domestic blank of this technology.However, still there is the deficiency of some essence in actual applications in its structure.1), the tympanic bone frame of this drum net supports spoke by of middle part and supports, the drum net is whole to be installed on the main shaft by bearing, the tympanic bone shelf structure has adopted single spoke and the auxilliary mode that adds the bilateral brace to increase drum net stability; The shortcoming that exists is that single-point supports, and eccentric load is big, and the local stress height shows as top-heavy on the structure; Main shaft also is the single-point carrying, and the moment of flexure of bearing is big, causes flexural deformation big, and the amplitude of vibration is also big, and the stress condition of main shaft bearing is abominable, damage easily, thereby the stability of structure deficiency; 2), can filtering attached to floating thing on the filter screen and suspension, but can't discharge automatically outside the net for the heavier foreign material that are trapped in the net in the water and sink to net bottom, its function singleness also need increase filter plant No. one time; 3), main shaft bearing need lubricate and seal, and causes the structure relative complex, caused the increase of equipment making cost.

Summary of the invention

Main purpose of the present utility model is to overcome the deficiency of existing drum net, and provides a kind of through being improved in conjunction with the characteristics of expanded metals, general filter screen, can make Stability Analysis of Structures, novel bulging net-two-wheel spoke running roller brace type cydariform rotary sieve that effect improves.

The technical scheme that realizes the utility model purpose is: two-wheel spoke running roller brace type cydariform rotary sieve comprises outer screen component (1), supports spoke (2), hollow rotating shaft (3), dirt discharge groove (4), bearing (5) supports running roller (6), dredger assembly (7), reinforced pipe (8), travelling gear (9), backwash water pipe (10), rubber seal (11), side net (12), screw feed mechanism (13) is formed; Wherein outer screen component (1) comprises the tubular structure that outer network framework and outer net form, and outer net is fixed on the outer network framework by screw; The two ends of outer screen component (1) are supported spoke (2) with two and are supported, and are provided with dredger assembly (7) between two support spokes (2), set up some reinforced pipes (8) and reinforce between two support spokes (2); Supporting spoke (2) center is hollow rotating shaft (3), the outer locating flange that is provided with of hollow rotating shaft (3), in be provided with dirt discharge groove (4), dirt discharge groove (4) is fixed on the bearing (5) at two ends, bearing (5) is fixed on the ground; Filter screen integral body is passed through hollow rotating shaft 3 positioning supports by the two groups of running rollers (6) that are fixed on the ground, and travelling gear (9) is installed on the hollow rotating shaft (3), and backwash water pipe (10) is installed in drum net top, and is fixed on the ground; On the support spoke (2) of the drum net other end side net (12) is housed.

Above-mentioned cydariform rotary sieve, its dredger assembly (7) comprise the bucket shape structure that dredger skeleton and dredger form, and the dredger skeletal fixation is supporting on the spoke (2), and dredger is fixed on the dredger skeleton by screw; Can be made as some groups, one group two, symmetric arrangement.

Above-mentioned cydariform rotary sieve, supports between spoke (2), hollow rotating shaft (3), dredger assembly (7), the reinforced pipe (8) to being welded to connect or the bolt connection its outer screen component (1).

Above-mentioned cydariform rotary sieve is provided with screw feed mechanism (13) in its dirt discharge groove (4), screw feed mechanism (13) is fixed on the dirt discharge groove two ends by bearing.

Above-mentioned cydariform rotary sieve, on the set running roller seat (6-1) of its running roller (6) rotating shaft (6-5) is housed, one group of connecting plate (6-4) is housed in the rotating shaft, connecting plate connects one group of backing roll wheel shaft (6-3) again by bearing (6-2), the backing roll wheel shaft is provided with locating slot, and rolling axle supports outer rim place bag with copper overcoat.

Above-mentioned cydariform rotary sieve, backwash water pipe (10) is made up of water pump, water-supply-pipe, water spray water pipe etc.; At drum net water inlet end rubber seal (11) is housed.

Remarkable result of the present utility model:

1, adopts hollow rotating shaft to replace central shaft, saved central shaft, solved the difficult problem that can't adopt the dual-gripper spoke, overcome single supporting construction instability problem; Solved the problem that is provided with of dirt discharge groove, guaranteed that dredger can import dirt outside dirt discharge groove and the discharge net reliably; Make filter screen integral body be adopted the running roller supporting construction, replace bearing spoke supporting construction; Structurally stable, reliably simple again more.

2, dredger is set, realized automatic pollution discharge for a full due, eliminated the accumulation of impurity, keep the stable not fluctuation of strainer filtering efficient, guarantee that the filter screen efficient operation is not blocked, filtering any water source that contains impurity all need not any pre-processing device, has reached saving equipment, the effect that reduces cost; More complete on the function, efficient.

3, adopt the technology of running roller supporting construction, material has been saved in the manufacturing of having saved handtailor bearing and bearing seal, lubricating system, and manufacture difficulty is reduced, and is easier for installation.

4, the replacing filter screen is more convenient simple, and consumable accessory reduces, and general maintenance does not influence the normal operation that drum is netted.

Description of drawings

Fig. 1 is an overall structure connection diagram of the present utility model

Fig. 2 is the A-A cross section view of Fig. 1

Fig. 3 is the structural representation that supports spoke

Fig. 4 is that the K of Fig. 3 is to view

Fig. 5 is the running roller structural representation

Fig. 6 is that the N of Fig. 5 is to view

Among the figure, the outer screen component of 1-, 2-support spoke, 3-hollow rotating shaft, 4-dirt discharge groove, 5-bearing, 6-support running roller, 7-dredger assembly, 8-reinforced pipe, 9-travelling gear, 10-backwash water pipe, 11-rubber seal, 12-side net, 13-screw feed mechanism;

The specific embodiment

Below in conjunction with accompanying drawing this technical scheme is further described

With reference to Fig. 1, Fig. 2, two-wheel spoke running roller brace type cydariform rotary sieve comprises outer screen component 1, support spoke 2, hollow rotating shaft 3, dirt discharge groove 4, bearing 5, supports auxiliary equipments compositions such as running roller 6, dredger assembly 7, reinforced pipe 8, travelling gear 9, backwash water pipe 10, rubber seal 11, side net 12, screw feed mechanism 13 and relevant power, connection, safety; Wherein outer screen component 1 comprises the tubular structure that outer network framework 1-1 and outer net 1-2 form, and outer network framework is welded by band steel or shaped steel, and outer net is fixed on by screw on the skeleton of outer net, and is removable detachable, and it is convenient to change; Dredger assembly 7 comprises the bucket shape structure that dredger skeleton 7-1 and dredger 7-2 form, and the dredger skeleton is welded by band steel or shaped steel, and the dredger skeletal fixation is supporting on the spoke 2, and dredger is fixed on the dredger skeleton by screw, and is removable detachable, and it is convenient to change.The two ends of outer screen component 1 are supported spokes 2 (a group two) by two and are carried out dual-gripper and fix, and support between the spoke 2 and are provided with some groups of dredger assemblies 7 (a group two, symmetric arrangement), support two and set up several reinforced pipes 8 between the spokes 2 and reinforce; Supporting spoke 2 centers is hollow rotating shaft 3, the hollow rotating shaft 3 outer locating flanges that are provided with, in be provided with dirt discharge groove 4, dirt discharge groove 4 is fixed on the bearing 5 at two ends, bearing 5 is fixed on the ground; Travelling gear 9 is installed on the hollow rotating shaft 3, also can be installed in (the general mode that adopts of drum net) on the outer screen component 1; Backwash water pipe 10 is installed in the tip position of drum net, and is fixed on the ground, and drum net water inlet end is equipped with rubber seal 11, on the support spoke 2 of the drum net other end side net 12 is housed.Backwash water pipe 10 is made up of water pump, water-supply-pipe, water spray water pipe etc., blowdown of employing center and backwash combining structure, with dirt discharge groove 4 centering positions, backwash water pipe 10 places directly over it, also can be provided with screw feed mechanism 13 in the dirt discharge groove, when blowdown flow rate more greatly can't water washes away, can realize blowdowns by screw feed mechanism 13.For being welded to connect or connecting, form a solid filter screen integral body between wherein outer screen component 1, support spoke 2, hollow rotating shaft 3, dredger assembly 7, the reinforced pipe 8 with bolt.

With reference to Fig. 3, Fig. 4, the spoke-like structure that is welded by band steel or shaped steel for support spoke 2 among the figure.

With reference to Fig. 5, Fig. 6,6-1 running roller seat, 6-2 bearing, 6-3 backing roll wheel shaft, 6-4 connecting plate, 6-5 rotating shaft among the figure; Filter screen integral body is passed through hollow rotating shaft 3 positioning supports by the two groups of running rollers 6 that are fixed on the ground, has replaced the bearing spoke to support; When equipment was big, this structure manufacturing was simple, easy for installation; Running roller 6 is similar to the roller frame structure, on the figure central roll wheel seat 6-1 rotating shaft 6-5 is housed, one group of connecting plate 6-4 is housed in the rotating shaft, connecting plate connects one group of backing roll wheel shaft 6-3 again by bearing 6-2, backing roll wheel shaft 6-3 is provided with locating slot, and rolling axle supports outer rim place bag with copper overcoat; This running roller 6 has automatic aligning, positioning function.

The utility model has increased the stability of bulging web frame owing to adopt the outer screen component of dual-support structure, improves force-bearing situation, and is stable, reliably simple again on the structure; Adopt the dredger structure, when containing the heavier foreign material of easy precipitation in the filtered water source, realized automatic pollution discharge for a full due, eliminated the accumulation of impurity, keep the stable not fluctuation of strainer filtering efficient, guarantee that the filter screen efficient operation is not blocked, filtering any water source that contains impurity all need not any pre-processing device, more complete on the function, efficient; Adopt whole filter screen running roller supporting construction, when equipment was big, this structure manufacturing was simple, easy for installation.Motor drives the slowly running of drum net by meshing gear when work, in rotary course, after the big flow cooling water source of containing foreign material enters and rouses net, outer net and side net filter it simultaneously, to be brought on the one hand backwash water spray water pipe place attached to the impurity on the filter screen and carry out back flush, and the sewage of flushing be flow to discharge outside the net in the dirt discharge groove; Utilize periodic salvaging of dredger to sink to shell, fish and other heavier foreign material of net bottom on the other hand, and be stranded in the net floating thing in the water and suspension it is imported in dirt discharge groove and discharges outside the net, realized safety, automatic pollution discharge up hill and dale.When dredger rotates to backwash water spray water pipe place, also pass through backwash simultaneously, guaranteed the cleaning of dredger.

In addition, when in the filtered water source floating thing and suspension only being arranged, the outer net blowdown can be satisfied the automatic pollution discharge requirement, and dredger can be set.The utility model is to produce under the maximization background condition, but has the function of small-sized water filter; Under the miniaturization condition, because hollow shaft diminishes, cause running roller to support advantage and disappear, at this moment, the suitable axle bed that adopts supports.

Claims

1, a kind of two-wheel spoke running roller brace type cydariform rotary sieve comprises outer screen component (1), support spoke (2), hollow rotating shaft (3), dirt discharge groove (4), bearing (5), supports running roller (6), dredger assembly (7), reinforced pipe (8), travelling gear (9), backwash water pipe (10), rubber seal (11), side net (12), screw feed mechanism (13) composition; It is characterized in that: outer screen component (1) comprises the tubular structure that outer network framework and outer net form, and outer net is fixed on the outer network framework by screw; The two ends of outer screen component (1) are supported spoke (2) with two and are supported, and are provided with dredger assembly (7) between two support spokes (2), set up reinforced pipe (8) and reinforce between two support spokes (2); Supporting spoke (2) center is hollow rotating shaft (3), the outer locating flange that is provided with of hollow rotating shaft (3), in be provided with dirt discharge groove (4), dirt discharge groove (4) is fixed on the bearing (5) at two ends, bearing (5) is fixed on the ground; Filter screen integral body supports running roller (6) by hollow rotating shaft (3) positioning supports by two groups that are fixed on the ground, and travelling gear (9) is installed on the hollow rotating shaft (3), and backwash water pipe (10) is contained in drum net top, and is fixed on the ground; On the support spoke (2) of the drum net other end side net (12) is housed.

2, two-wheel spoke running roller brace type cydariform rotary sieve according to claim 1, it is characterized in that described dredger assembly (7) comprises the bucket shape structure that dredger skeleton and dredger form, the dredger skeletal fixation is supporting on the spoke (2), and dredger is fixed on the dredger skeleton by screw; Can be provided with some groups, one group two, symmetric arrangement.

3, two-wheel spoke running roller brace type cydariform rotary sieve according to claim 1 is characterized in that described outer screen component (1), supports spoke (2), hollow rotating shaft (3), dredger assembly (7), between the reinforced pipe (8) for being welded to connect or the bolt connection.

4, two-wheel spoke running roller brace type cydariform rotary sieve according to claim 1 is characterized in that being provided with screw feed mechanism (13) in the described dirt discharge groove (4), and screw feed mechanism (13) is fixed on the dirt discharge groove two ends by bearing.

5, two-wheel spoke running roller brace type cydariform rotary sieve according to claim 1 is characterized in that described reinforced pipe (8) can be made as several.

6, two-wheel spoke running roller brace type cydariform rotary sieve according to claim 1, it is characterized in that on the running roller seat (6-1) that described running roller (6) is provided with rotating shaft (6-5) being housed, one group of connecting plate (6-4) is housed in the rotating shaft, connecting plate connects one group of backing roll wheel shaft (6-3) again by bearing (6-2), and backing roll wheel shaft (6-3) is provided with locating slot.

7, two-wheel spoke running roller brace type cydariform rotary sieve according to claim 1 is characterized in that described bulging net water inlet end is equipped with rubber seal (11).