CN203835038U - Wind-proof and dust-suppressing wall for thermal power plant - Google Patents

Abstract

The utility model discloses a wind-proof and dust-suppressing wall for a thermal power plant. The wind-proof and dust-suppressing wall is formed by assembling a plurality of single wind-proof and dust-suppressing nets; a great circle zone where a divergent nozzle is mounted is located in the middle of each of the single wind-proof and dust-suppressing net; small circle zones which are arranged in a staggered manner are located on the two sides of each great circle zone; connecting hole zones are located on the outer edges of the wind-proof and dust-suppressing nets. The wind-proof and dust-suppressing wall for the thermal power plant has the advantages that each wind-proof and dust-suppressing net is of a streamline shape to reduce stress concentration of wind load, to play a good diversion role in the wind, to enable the wind to collide in the semicircular arc concave centers of the two adjacent wind-proof and dust-suppressing nets and form vortex, and to greatly reduce the wind speed perpendicular to the wind-proof and dust-suppressing nets; furthermore, the great circle zones where the divergent nozzles are mounted and the small circle zones connected with the divergent nozzles can further reduce the wind speed. With adoption of the design of the openings in the wind-proof and dust-suppressing nets, the wind speed in a coal yard can be effectively reduced; the reduction of the wind speed allows reduction of connecting fasteners for the wind-proof and dust-suppressing nets, so as to save the cost.

Description

A kind of thermal power plant dust suppression and wind proofing wall

Technical field

The utility model belongs to thermal power plant's wind-proof dust-suppression technical field of tools, is specifically related to be arranged in the wind-proof dust-suppression net of bucket-wheel stacker reclaimer bar shaped coal yard surrounding.

Background technology

Existing thermal power plant evaluates requirement for meeting local environment, all in bucket-wheel stacker reclaimer bar shaped coal yard surrounding, arranges wind-proof and dust suppressing wall, single footing, steel structure support, wind-screening dust-inhibiting net three parts, consists of.What wherein dust suppression is played to decisive effect is wind-screening dust-inhibiting net, and especially the hole shape of wind-screening dust-inhibiting net is maximum to wind-proof dust-suppression influential effect.Existing wind-screening dust-inhibiting net is fold-line-shaped, and broken line position is easy to form wind load stress and concentrates and cause and fracture.In addition, in the middle of existing wind-screening dust-inhibiting net, turn up the circular hole at position, reduce the poor effect of wind speed; When the out-of-date circular hole of wind, because reducing suddenly to cause wind speed, flow area raises, and the wind comes from of higher wind just can be weakened through a very long segment distance after wind-screening dust-inhibiting net in bar shaped coal yard.Therefore caused that in coal yard, wind speed still very greatly, even coal dust disorderly blows, extremely worsened the working environment of equipment and personnel in bar shaped coal yard.Different according to each power plant wind-force, the general high 10m-20m of dust suppression and wind proofing wall, wide hundreds of rice not etc., are not spliced by a piece wind-screening dust-inhibiting net, and dust suppression and wind proofing wall cost the highest part be exactly connection securing member.Because existing wind-screening dust-inhibiting net can not effectively reduce wind speed, just require to connect that quantity with securing member is large and material good, greatly improved cost.

Summary of the invention

The technical problems to be solved in the utility model is to provide and a kind ofly can effectively reduces wind speed, improves thermal power plant's wind-screening dust-inhibiting net of the working environment of equipment and personnel in bar shaped coal yard; Another technical problem that the utility model solves is enough minimizings number of connecting securing member, reduces the requirement to its material, and energy-conservation manufacturing cost improves the working life of wind-screening dust-inhibiting net simultaneously.

The utility model solves the problems of the technologies described above by the following technical programs:

A kind of thermal power plant dust suppression and wind proofing wall, dust suppression and wind proofing wall is assemblied to form by some monolithic wind-screening dust-inhibiting nets, it is characterized in that, the centre position of monolithic wind-screening dust-inhibiting net is the great circle porose area that divergent nozzle is installed, the both sides of great circle porose area are the roundlet porose area that stagger arrangement is arranged, and there is connection porose area the outer of wind-screening dust-inhibiting net.

As optimization, the outside of described roundlet porose area is the coincidence roundlet porose area of wind-screening dust-inhibiting net assembly and connection; On the small sircle hole of one of them coincidence roundlet porose area, divergent nozzle is installed; Described monolithic wind-screening dust-inhibiting net is Ω shape, and position, intermediate portion is to coal yard outside projection, two side direction coal yard sunken insides; The edge of two adjacent wind-screening dust-inhibiting nets overlaps each other, the roundlet porose area that wherein the roundlet porose area wind-screening dust-inhibiting net adjacent with another of a slice wind-screening dust-inhibiting net is provided with divergent nozzle overlaps, and adjacent wind-screening dust-inhibiting net connects by connecting the connecting hole of porose area with connecting securing member; The whole dust suppression and wind proofing wall of final composition.

The utility model has the advantage of: every wind-screening dust-inhibiting net is streamlined, the stress that has reduced wind load is concentrated; To the wind comes from, play good guide functions, make wind bump against and form eddy current at adjacent two wind-screening dust-inhibiting net semicircular arc Depression Centers, perpendicular to the wind speed of wind-screening dust-inhibiting net, significantly reduce; After the great circle porose area of divergent nozzle and roundlet porose area are installed, divergent nozzle further reduces wind speed.By these, to wind-screening dust-inhibiting net, perforate designs, and the wind speed that enters into coal yard is effectively reduced, and has improved greatly the interior equipment of coal yard and personnel's working environment; The simultaneously reduction of wind speed makes wind-screening dust-inhibiting net connect the decreased number of securing member, and reduces the requirement to its material, and energy-conservation cost has also improved the working life of wind-screening dust-inhibiting net.

Accompanying drawing explanation

Fig. 1 is the utility model wind-screening dust-inhibiting net structural representation;

Fig. 2 is the utility model wind-screening dust-inhibiting net front view;

Tu3Wei the utility model thermal power plant dust suppression and wind proofing wall assembly drawing;

In figure: 1 installs the great circle porose area of divergent nozzle, the roundlet porose area that 2 stagger arrangement are arranged, 3 install the coincidence roundlet porose area of divergent nozzle, 4 coincidence roundlet porose areas, 5 connect porose area.

The specific embodiment

A kind of Novel fire power plant dust suppression and wind proofing wall, dust suppression and wind proofing wall is assemblied to form by some wind-screening dust-inhibiting nets, wind-screening dust-inhibiting net is made of steel plate, the centre position of wind-screening dust-inhibiting net is the great circle porose area 1 that divergent nozzle is installed, the both sides of great circle porose area 1 are the roundlet porose area 2 that stagger arrangement is arranged, and the outside of roundlet porose area 2 is the coincidence roundlet porose area 3,4 of wind-screening dust-inhibiting net assembly and connection; On the small sircle hole of one of them coincidence roundlet porose area 3, divergent nozzle is installed; There is the porose area 5 of connection the outer of wind-screening dust-inhibiting net.Wind-screening dust-inhibiting net is Ω shape, and position, intermediate portion is to coal yard outside projection, two side direction coal yard sunken insides; The edge of two adjacent wind-screening dust-inhibiting nets overlaps each other, wherein coincidence roundlet porose area 4 wind-screening dust-inhibiting nets adjacent with another of a slice wind-screening dust-inhibiting net are provided with roundlet porose area 3 coincidences that overlap of divergent nozzle, and adjacent wind-screening dust-inhibiting net connects by connecting the connecting hole of porose area 5 with connecting securing member; The whole dust suppression and wind proofing wall of final composition.

When coal yard be the wind comes from, be first subject to stopping of wind-screening dust-inhibiting net intermediate projections, kinetic energy rejection, Speed Reduction.Part wind is by the divergent nozzle of great circle porose area 1, and speed is further lowered into coal yard, because the wind comes from as subsonic speed is by divergent nozzle district Speed Reduction; Another part wind is along fairshaped wind-screening dust-inhibiting net to its two side flow, and first wind be subject to the effect of boundary layer of stagger arrangement small sircle hole 2, Speed Reduction, and a part of low velocity wind enters coal yard by stagger arrangement small sircle hole 2; Secondly, because adjacent two wind-screening dust-inhibiting nets form semicircular arc depression border, the low velocity wind that adjacent two wind-screening dust-inhibiting nets flow through great circle porose area 1 and stagger arrangement roundlet porose area 2 is bumped against at semicircular arc Depression Centers, kinetic energy further reduces, and because the disturbance of bumping against makes wind, in the outside wall surface of roundlet porose area 2, form circulation, thereby the wind speed of the wind comes from perpendicular to wind-screening dust-inhibiting net significantly reduces; After only having seldom a part of wind facies to hit, by the coincidence roundlet porose area 3 of divergent nozzle is installed, flow into coal yard, now low velocity wind further reduces through divergent nozzle speed.

By the utility model, to wind-screening dust-inhibiting net, perforate designs, and the wind speed that enters into coal yard is effectively reduced, and has improved greatly the interior equipment of coal yard and personnel's working environment; The simultaneously reduction of wind speed makes wind-screening dust-inhibiting net connect the decreased number of securing member, and reduces the requirement to its material, and energy-conservation cost has also improved the working life of wind-screening dust-inhibiting net.

Claims (5)

1.Yi Zhong thermal power plant dust suppression and wind proofing wall, dust suppression and wind proofing wall is assemblied to form by some monolithic wind-screening dust-inhibiting nets, it is characterized in that, the centre position of monolithic wind-screening dust-inhibiting net is the great circle porose area that divergent nozzle is installed, the both sides of great circle porose area are the roundlet porose area that stagger arrangement is arranged, and there is connection porose area the outer of wind-screening dust-inhibiting net.

2. thermal power plant as claimed in claim 1 dust suppression and wind proofing wall, is characterized in that, the outside of described roundlet porose area is the coincidence roundlet porose area of wind-screening dust-inhibiting net assembly and connection.

3. thermal power plant as claimed in claim 2 dust suppression and wind proofing wall, is characterized in that, on the small sircle hole of one of them coincidence roundlet porose area, divergent nozzle is installed.

4. thermal power plant as claimed in claim 1 or 2 dust suppression and wind proofing wall, is characterized in that, described monolithic wind-screening dust-inhibiting net is Ω shape, and position, intermediate portion is to coal yard outside projection, two side direction coal yard sunken insides.

5. thermal power plant as claimed in claim 1 or 2 dust suppression and wind proofing wall, it is characterized in that, the edge of two adjacent wind-screening dust-inhibiting nets overlaps each other, the roundlet porose area that wherein the roundlet porose area wind-screening dust-inhibiting net adjacent with another of a slice wind-screening dust-inhibiting net is provided with divergent nozzle overlaps, and adjacent wind-screening dust-inhibiting net connects by connecting the connecting hole of porose area with connecting securing member.