CN2457460Y

CN2457460Y - Negative pressure dust removing equipment by using vacuum cleaner

Info

Publication number: CN2457460Y
Application number: CN 00267735
Authority: CN
Inventors: 钟玉
Original assignee: BEIJING KANGDE ENVIRONMENT TECHNOLOGY Co Ltd
Current assignee: BEIJING KANGDE ENVIRONMENT TECHNOLOGY Co Ltd
Priority date: 2000-12-29
Filing date: 2000-12-29
Publication date: 2001-10-31
Anticipated expiration: 2010-12-29

Abstract

The utility model relates to a negative pressure dust removing device which uses a vacuum cleaner, and is used for removing dust at power plant boiler bodies, etc. The utility model is characterized in that an angle of a boiler body is vertically provided with a main pipe; after turned following the boiler, the upper part of the main pipe is plumbed upwards, the upper end of the main pipe is provided with a end plug, and the lower part after turned is connected with a two-stage cleaner through a quick joint and a hose; every certain height is provided with a layer of branch pipes which are communicated with each other and have certain slope, the branch pipes are communicated with the main pipe by diameter changing branch pipes and branch pipe joints, and the turning points are in an arc shape; the upper surfaces of the branch pipes are provided and communicated with branching pipes, and the ends of the branching pipes are provided with suction inlets which are plumbed downwards and fast end plugs. The utility model can remove dust rapidly.

Description

Adopt the depression dust-removing equipment of vacuum cleaner

The utility model relates to a kind of depression dust-removing equipment that adopts vacuum cleaner, is applicable to the dedusting of boiler of power plant body, dell, trench, cable trough, power distribution cabinet, pipeline etc.

Owing to expand with heat and contract with cold, the part cracks after boiler operatiopn a period of time, will leak ash, leak cigarette, and the time is longer, and laying dust the more makes boiler shop seriously polluted.At present, most of power plant adopt hand sweeping, pack, pour in the trench the laying dust of boiler body, both waste time and energy like this, also can cause the secondary pollution of dust; Indivedual power plant utilize homemade deduster to carry out design of pipe networks, because design of pipe networks is unreasonable, equipment does not match, and can not come into operation, and causes very big waste.

The purpose of this utility model is to provide a kind of depression dust-removing equipment that adopts vacuum cleaner for overcoming above-mentioned defective.

The technical measures that realization the utility model purpose is taked are as follows, and the utility model is made of pipe network and two-step filter.Pipe network: during depression dust-removing, carrier gas should have an optimum flow rate when flowing in pipe network, in order to obtain optimum flow rate, must keep certain negative pressure and air quantity, and is unlikely blocked less to pipe wear with material to guarantee pipeline.Press the long-pending calculating of air quantity=flow velocity * pipeline section, different main frame power differences, air quantity and negative pressure are different, go out the pipe network that is complementary with main frame power according to different Demand Design.Vertically be provided with and the contour person in charge of body of heater at one jiao of place near boiler body, the upper end is provided with plug, after turning round with body of heater, top vertically upward, turns round after the air inlet socket of snap joint, flexible pipe and cyclone dust collectors exports the air inlet socket through flexible pipe and vacuum cleaner in the bottom; Every certain altitude arm is set around boiler, every layer of arm interconnects, be arranged to have certain gradient along the media flow direction, every layer of arm is connected with the person in charge and is communicated with through reducing arm, branch pipe connection, branch pipe connection and be responsible between, between horizontal branch pipe and branching joint, be 15 ° of angles between horizontal branch pipe respectively, the radius of curvature of bend pipe center line is 12 times of bend pipe diameter, minimum must not be less than 6 times under the situation of limited space system, with minimizing dust flow resistance, thereby guarantee that the smooth and easy of material flows; Determine dust sucting point quantity according to dust production resource quantity, at each branched pipe is set above the horizontal branch pipe according to dust sucting point quantity, its position must be greater than or equal to the height on this arm plane, at the terminal suction inlet that is provided with vertically downward of each branched pipe, in the branched pipe end quick plug is set, constitutes the dedusting pipe network of sealing.Be responsible for the terminal two-step filter that is provided with, the first order is cyclone dust collectors, dust about 90% is separated, enter the water tank of bottom through the star blow-off valve, directly enter grey ditch after becoming mud, washed away by the circulating water in the grey ditch, about 10% thinner dust are by the vacuum cleaner dedusting, and the purpose of She Zhiing is to alleviate the burden of back level cloth bag filtration like this.

Advantage of the present utility model: 1, efficiency of dust collection height, according to the different operating modes of each power plant, can open several suction inlets simultaneously, dedusting simultaneously; 2, vacuum is up to 61KPa, can collect any can be by the material of pipeline; 3, set pipe network and vacuum cleaner ability are complementary, and adopting reducing is that horizontal pipeline section progressively enlarges to being responsible for to the caliber between being responsible for from each dust sucting point, to keep material at ducted optimum flow rate; 4, in order to reduce resistance of pipe system, branch pipe connection is set, so that wherein flow direction of material be responsible in flow direction of material become downbeam, branching joint is set, so that wherein flow direction of material become downbeam, bend pipe center line radius of curvature with flow direction of material in the arm be 12 times of bend pipe diameter, with resistance and the pipe network wearing and tearing of reducing friction; 5, adopt thick-walled seamless steel pipes, to increase wearability.

Fig. 1 is a rough package drawing of the present utility model, Fig. 2 is the schematic top plan view below 14 meters among Fig. 1, C is a factory building among the figure, Fig. 3 is 14 meters to 73.48 a meters arbitrary layer pipe network horizontal layout schematic diagram, Fig. 4 is the enlarged drawing of I among Fig. 1, Fig. 5 is the enlarged drawing of II among Fig. 1, Fig. 6 is the enlarged drawing of III among Fig. 1, Fig. 7 is the enlarged drawing of IV among Fig. 1, and Fig. 8 is the enlarged drawing of V among Fig. 1, and Fig. 9 is that special-purpose suction nozzle is through snap joint and branched pipe connection diagram, Figure 10 is the enlarged drawing of VI among Fig. 1, Figure 11 is the enlarged drawing of VIII among Fig. 1, Figure 12, Figure 13 is respectively an IX among Fig. 1, the enlarged drawing of X, Figure 14 are the enlarged drawings of VII among Fig. 1.

In conjunction with the accompanying drawings structure of the present utility model and embodiment are described as follows:

The utility model is made of the pipe network and the two-step filter of sealing.Pipe network: at one jiao near boiler body B, vertically the contour person in charge 1 of setting and body of heater (sees Fig. 1, Fig. 2), upper end and plug 12 (see figure 7) that is threaded, top is turned 30 ° and (is seen Figure 12 vertically upward after curved in high 55 meters to 68.4 meters centres, 13), locate to turn round at high about 2 meters and (comprise the valve component 17 of being with seal washer through snap joint 6a, valve pocket 18 and hose coupling 19) and flexible pipe 7a socket (see figure 4), the air inlet socket (see figure 5) of the other end of flexible pipe 7a and cyclone dust collectors 10, flexible pipe 7b one end is connected with the port of export of cyclone dust collectors 10, the other end is through hose coupling 19b, valve pocket 18b, the air inlet 20 of band valve component 17b of seal washer and vacuum cleaner 11 (see figure 6) that is threaded, cyclone dust collectors, the model of vacuum cleaner is respectively homemade SP400, Italy produces SPY25DLI, be the commercially available prod, the discharge gate of two deduster bottom hoppers 15 is respectively equipped with star removal device (13,13a); Around boiler B, be provided with arm 2 (see figure 3)s every certain altitude, interconnect with layer arm, be arranged to have 0.003 the gradient along the media flow direction, in order to reduce the resistance that material flows in pipe, every layer of arm 2 is arranged to through reducing arm 5, branch pipe connection 31 is with the person in charge's 1 welding and be communicated with (see figure 10), two pipes (1 in the junction, 31) axis is 15 ° of angles, between the branch pipe connection 31 and the person in charge, 32 of horizontal branch pipe 2 and branching joints, the radius of curvature that 2 of horizontal branch pipees are 15 ° of angles (Figure 14) bend pipe center line respectively is 6～12 times of bend pipe diameter, at each branched pipe 3 is set above the horizontal branch pipe 2 according to dust sucting point quantity, its position must be greater than or equal to this arm level (seeing Figure 11), at the terminal suction inlet that is provided with vertically downward of each branched pipe, in the branched pipe end quick plug 6 is set and (comprises the valve component 17a that is with seal washer, sealing-plug 18c and chain 16) (see figure 8), constituted the dedusting pipe network of a sealing.Vacuum cleaner main performance index: power: 56KW, maximum vacuum: 61KPa, maximum quantity of wind: 275lm ³/ h, maximum delivery: 19t/h, maximum delivery distance: 198m, power set: motor, exhaust standard: the submicron of filtering 99.9% (μ level); Plug, quick plug and snap joint make with the metal machined.

The course of work of the present utility model, see Fig. 9:

When the dust sucting point of boiler B one deck needs dust suction, (or 9a 9b) receives on the handle 8 with special-purpose suction nozzle 9, handle 8 is connected with hose 7, hose is connected with valve pocket 18a through hose coupling valve component 19a, open again with the sealing-plug 18c of the nearest quick plug 6 of dust sucting point and be connected (see figure 9), start the electric motor starting vavuum pump of dust catcher, produce negative pressure with snap joint valve body assembly 17a, artificial hand-held handle 8, by suction nozzle 9 (or 9a, 9b) but just dust suction.Dust is sucked into cyclone dust collectors 10 and vacuum cleaner 11, by star blow-off valve (13,13a) with dust enter water tank (14,14a), become and enter trench behind the mud and flow away, pure qi (oxygen) is discharged in the atmosphere.

Claims

1, a kind of depression dust-removing equipment that adopts vacuum cleaner, it is characterized in that, this equipment is made of the pipe network and the two-step filter of sealing, pipe network: at Yi Jiaochu near boiler body, vertically be provided with and the contour person in charge of body of heater, the upper end is provided with plug, after turning round with body of heater in top vertically upward, turn round after snap joint in the bottom: comprise the valve component of being with seal washer, valve pocket and hose coupling, with tube socket, air inlet socket through flexible pipe and cyclone dust collectors, its port of export is connected with the hose coupling of snap joint through flexible pipe, and the valve component of band seal washer and the air inlet of vacuum cleaner are threaded, and the discharge gate of two deduster bottom hoppers is respectively equipped with the star removal device; Be provided with arm around the boiler every certain altitude, interconnect with a layer arm, be arranged to have certain gradient along the media flow direction, every layer of arm is arranged to be connected with the person in charge and be communicated with through reducing arm, branch pipe connection; At each branched pipe is set above the horizontal branch pipe, its position must be greater than or equal to this arm level, at the terminal suction inlet that is provided with vertically downward of branched pipe, in the branched pipe end quick plug is set, comprise valve component, sealing-plug and the chain of being with seal washer, constitute the dedusting pipe network of a sealing.

2, by the described depression dust-removing equipment of claim 1, it is characterized in that, arm is arranged to be 0.003 the gradient along the media flow direction, branch pipe connection and be responsible between, between horizontal branch pipe and branching joint, be 15 ° of angles between horizontal branch pipe respectively, the radius of curvature of bend pipe center line is 6～12 times of bend pipe diameter, and the model of cyclone dust collectors, vacuum cleaner is respectively homemade SP400, Italy produces SPY25DLI.