CN202555093U

CN202555093U - Special wet flue gas dehydrator for desulfurization engineering

Info

Publication number: CN202555093U
Application number: CN2012202446780U
Authority: CN
Inventors: 孙德山; 吕斌; 吕扬; 张友; 王军
Original assignee: Shandong Guoshun Construction Group Co Ltd
Current assignee: Shandong Guoshun Construction Group Co Ltd
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2012-11-28
Anticipated expiration: 2022-05-28

Abstract

The utility model discloses a special wet flue gas dehydrator for desulfurization engineering, belongs to flue gas purification equipment and particularly relates to a flue gas emission device for wet desulfurization equipment. The special wet flue gas dehydrator for desulfurization engineering is characterized in that 16-24 radial blades are arranged between the outer wall of the cylindrical dehydrator and a central cylinder, the inner-edge lift angle of each blade is 80 degrees-85 degrees, the outer-edge lift angle of each blade is 38 degrees-48 degrees, and a conical fairing with a downward cone apex is arranged below the central cylinder. The blade type dehydrator is designed by adopting the principle of centrifugal force; preferably, the angle of each blade can enable flue gas to rise spirally in a chimney, liquid drops in the flue gas can be thrown to the wall of the chimney under the action of the centrifugal force during the rotation process, and water flow is formed under the situation that water beads are continuously accumulated on the inner surface of the wall of the chimney and downwards flows back into a liquid storage area by relying on dead weight. The flue gas out of the chimney does not contain the liquid drops with large particle size, so that the phenomenon of chimney rain, which is emerged after a desulfurization device cancels GGH (gas-gas heater), can be better solved.

Description

The special-purpose wet flue gas dehydrator of desulfurization project

Technical field

The utility model belongs to flue gas purifying equipment, particularly the fume emission device of wet type desulfurizing equipment.

Background technology

In flue gas desulphurization system equipment, GGH flue gas heat exchange device is one of capital equipment of this system, and it is an introduction of foreign technology; Its main performance is to utilize former flue gas (130 ℃～170 ℃) to heat clean flue gas (50 ℃～60 ℃); Clean flue gas after the desulfurization is heated to about 80 ℃ by 50 ℃～60 ℃, and its purpose is exactly the evaporated water that reduces in the desulfurizing tower, improves the diffusivity of exhanst gas outlet pollutant; Reduce the visibility of plume, avoid chimney " to rain ".Through operation practice for many years, confirm many shortcomings such as this equipment inleakage is big, ash is stifled, resistance is big, fault is many, the benefit of this equipment; Do not support the negative effect that it produces; Maximum problem is exactly a poor reliability, and maintenance capacity is big, directly influences the normal operation of desulphurization system.

In view of above situation; State Environmental Protection Administration holds the meeting whether national desulfurization industry cancels GGH in May, 2004; GGH equipment is adopted in meeting decision Beijing-Tianjin area, city and the suburbs, scenic spot, and GGH can be cancelled in other areas, so the desulfurization facility of design has mostly been cancelled GGH at present.Cancelled the subject matter that GGH brings: the one, the desulphurization system water consumption increases; The 2nd, condensed water increases in the flue gas, around chimney, forms so-called " chimney rain " in the 200m, and these raindrop have bigger corrosivity to building in the factory and equipment; Thereby also cause the pollution of environment

The utility model content

In order to overcome existing desulfurizer cancellation GGH forms chimney rain easily around chimney deficiency; The utility model provides a kind of desulfurization project special-purpose wet flue gas dehydrator, and the special-purpose wet flue gas dehydrator of this desulfurization project " chimney rain " pollution to environment occurs after being installed to and can preferably resolving desulfurizer cancellation GGH behind the desulfurizing tower.Help desulfurizing tower environmental protection on every side.

The utility model solves the technical scheme that its technical problem adopted: the special-purpose wet flue gas dehydrator of a kind of desulfurization project; It is characterized in that: the radial blade of 16-24 sheet is housed between columnar dehydrator outer wall and the central tube; The inner edge lift angle of blade is 80 °～85 °; The outer rim lift angle is 38 °～48 °, and the downward conical radome fairing of the vertex of a cone is equipped with in the central tube below.

Described inner core, outer wall adopt bolt to be connected with blade.

Described inner core, outer wall, blade use resistant material polypropylene, glass steel or stainless steel to make.

A kind of desulfurizing tower that uses the special-purpose wet flue gas dehydrator of desulfurization project; The absorption tower is top-loaded with in line chimney; Be provided with the spray thrower that links to each other with circulating pump in the absorption tower; Demister and be positioned at the demister flushing pipe that links to each other with flush water pump of demister below is characterized in that: desulfurization project special use wet flue gas dehydrator is housed absorbing cat head and in line chimney junction.

The beneficial effect of the utility model is just directly to enter atmosphere from chimney after removing GGH according to the clean flue gas that desulfurizing tower is discharged; Flue gas is the state of vertical lifting in chimney; The utility model adopt centrifugal force principle design the vane type dehydrator; The angle of preferred blade makes flue gas spiral escalation in chimney, and in the process of rotation, the drop in the flue gas gets rid of under action of centrifugal force to the chimney wall; Chimney wall inner surface leans on to flow back into the liquid storage district under conducting oneself with dignity under the situation of constantly gathering the globule and form current.Through above principle, the flue gas of emerging from chimney no longer has the drop of big particle diameter, has cancelled and occurs " chimney rain " pollution to environment behind the GGH thereby preferably resolve desulfurizer.Help desulfurizing tower environmental protection on every side.

Description of drawings

Fig. 1 is the structural representation of the utility model,

Fig. 2 is the cutaway view of Fig. 1,

Fig. 3 is the utility model application example sketch map.

Among the figure, 1. absorption tower, 2. in line chimney, 3. circulating pump, 4. flush water pump, 5. dehydrator, 51. dehydrator outer walls, 52. central tubes, 53. blades, 54. radome fairings, 6. demister, 7. spray thrower, 8. demister flushing pipe, 9. smoke inlet.

The specific embodiment

The specific embodiment of the utility model is, and is as shown in the figure:

Embodiment 1; The special-purpose wet flue gas dehydrator of a kind of desulfurization project; It is characterized in that: the radial blade 53 of 16-24 sheet is housed between columnar dehydrator outer wall 51 and the central tube 52; The inner edge lift angle of blade is 80 °～85 °, and the outer rim lift angle is 38 °～48 °, and the downward conical radome fairing 54 of the vertex of a cone is equipped with in the central tube below.

Described inner core, outer wall adopt bolt to be connected with blade.

Embodiment 2; A kind of desulfurizing tower that uses the special-purpose wet flue gas dehydrator of desulfurization project; Absorption tower 1 is top-loaded with in line chimney 2; Be provided with the spray thrower 7 that links to each other with circulating pump 3 in the absorption tower, demister 6 and be positioned at the demister flushing pipe 8 that links to each other with flush water pump of demister below is characterized in that: desulfurization project special use wet flue gas dehydrator 5 is housed absorbing cat head and in line chimney junction.

Claims

1. the special-purpose wet flue gas dehydrator of a desulfurization project; It is characterized in that: the radial blade of 16-24 sheet is housed between columnar dehydrator outer wall and the central tube; The inner edge lift angle of blade is 80 °～85 °; The outer rim lift angle is 38 °～48 °, and the downward conical radome fairing of the vertex of a cone is equipped with in the central tube below.

2. the special-purpose wet flue gas dehydrator of desulfurization project according to claim 1 is characterized in that: described inner core, outer wall adopt bolt to be connected with blade.

3. the special-purpose wet flue gas dehydrator of desulfurization project according to claim 1 is characterized in that: described inner core, outer wall, blade use resistant material polypropylene, glass steel or stainless steel to make.

4. desulfurizing tower that uses the special-purpose wet flue gas dehydrator of the described desulfurization project of claim 1; The absorption tower is top-loaded with in line chimney; Be provided with the spray thrower that links to each other with circulating pump in the absorption tower; Demister and be positioned at the demister flushing pipe that links to each other with flush water pump of demister below is characterized in that: desulfurization project special use wet flue gas dehydrator is housed absorbing cat head and in line chimney junction.