CN204901804U - A radome fairing for biomass boiler - Google Patents

Abstract

The utility model discloses a radome fairing for biomass boiler. Including the mount, the mount is square plate, and open at the board center has the circular port, the last fixed surface of mount has the cross suspension, the lower surface center of cross suspension is equipped with protruding axle, protruding axle and turbofan dish normal running fit, the turbofan dish is located the circular port of mount, the lower fixed surface of mount has drainage cover. The utility model discloses an at the indoor fixed radome fairing of biomass combustion, concentrate the air current of burning through the cover body, make high temperature gas flow temperature homogeneous mixing, slow down the velocity of flow, with the abundant heat transfer of heat exchanger, improve heat exchange efficiency, reduce the wasting of resources, the grey slag deposits that messenger's hot gas flow was taken away avoids the lime -ash to get into the flue on the combustor, produces the flue and blocks to low temperature jet exit atmosphere through the turbofan dish flows can reduce the green house effect to the environment.

Description

A kind of radome fairing for biomass boiler

Technical field

The utility model belongs to biomass boiler field, particularly relates to a kind of radome fairing for biomass boiler.

Background technology

At present, there is Industrial Boiler about more than 50 ten thousand in China, and annual coal consumption is about 1/3 of national coal consumption total amount, and the environmental pollution caused by coal-burned industrial boiler is very serious, and a large amount of Industrial Boilers must use clear energy sources instead.According to the biomass resource condition of China, forest and agricultural biomass is utilized to use the feature then having environmental friendliness, can regenerate as boiler oil, research Biomass Combustion Technology in Industrial Boilers, exploitation biomass fuel boiler, to saving conventional energy resource, optimize China's energy resource structure, alleviating environmental pollution has positive effect.

Combustion system is made up of parts such as burner, blower fan, igniters.First biomass fuel has a warm in the burner, then by blower fan, fuel area density is burnt to burner hearth.Biomass fuel contains very high fugitive constituent, and when temperature in burner hearth reaches the Precipitation Temperature of its volatile matter, under the condition of giving wind, initial igniter fuel just can ignition rapidly.The high temperature gas flow that burning produces is directly used in heat exchanger and carries out heat exchange, heat exchange utilization rate is low, cause exhaust gas temperature too high, amount of heat is directly discharged from chimney through flue gas purification, waste most of energy, and along with thermal current, lime-ash can be taken up during biomass combustion, the surface of heat exchanger can be attached to, cause heat exchange efficiency low, and flue can be caused to block.

Therefore, for improving biomass combustion utilization ratio, flue temperature is reduced, improve the service life of single unit system, a radome fairing is set in biomass combustion indoor, high temperature gas flow is filtered, slow down air-flow velocity, make gas flow temperature Homogeneous phase mixing, and fully carry out heat exchange with heat exchanger.

Utility model content

The purpose of this utility model is for the deficiencies in the prior art, a kind of radome fairing for biomass boiler is provided, cover body is passed through by the air flow collection of burning, high temperature gas flow homogeneous temperature is mixed, slow down flow velocity, heat exchange abundant with heat exchanger, the Btu utilization solving the material burning generation of existing biomass combustion room is insufficient, fume emission gas temperature is too high, environment is had to the problems such as higher impact.

For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model provides a kind of radome fairing for biomass boiler, comprise fixed mount, described fixed mount is square plate, plate center has circular port, the upper surface of described fixed mount is fixed with cross suspension, the lower surface center of described cross suspension is provided with convex axle, and described convex axle and a turbofan dish are rotatably assorted, and described turbofan dish is positioned at the circular port of fixed mount; The lower surface of described fixed mount is fixed with a drainage hood.

Further, described fixed mount is refractory metal material, and four bights are fixed with goat installation device respectively, and described goat installation device is fixed on the inwall of biomass combustion room.

Further, four ends of described cross suspension are vertically respectively equipped with footstool, described footstool and fixed mount be fixedly adopt to weld or the mode of screw; The described convex axle that described cross suspension is arranged is provided with bearing, and end is provided with external screw thread, and the first order of bearing and turbofan dish fans the inner hole of ring, and fixes convex axle axle head with nut, makes turbofan dish promote fan leaf under the air-flow of HTHP and freely rotates.

Further, described drainage hood is a projective table type cover body, adopts high temperature resistant material, and described drainage hood is arranged on above the heat exchanger of biomass combustion indoor; On the one hand, the thermal current of biomass combustion locular wall side is directed on turbofan dish; On the other hand, by turbofan dish, thermal current is reflexed on heat exchanger, improve energy utilization rate, and the impurity of burning is filtered.

Further, described turbofan dish comprises first order fan ring, second level fan ring, third level fan ring and fan leaf, and described first order fan ring is fanned between ring with the second level and is fixedly connected with by some fan leafs; Described second level fan ring is fanned between ring with the third level and is fixedly connected with by some fan leafs; Some fan leafs are fixed with outside described third level fan ring.

The utility model has following beneficial effect:

1. the utility model is by fixing a radome fairing in biomass combustion indoor, passes through cover body, high temperature gas flow homogeneous temperature is mixed in the air flow collection of burning, slows down flow velocity, heat exchange abundant with heat exchanger, improves heat exchange efficiency, reduces the wasting of resources.

2. by arranging a turbofan dish structure in radome fairing, certain filtration is carried out to high temperature hot gas stream, the ash deposition that thermal current is taken away on the burner, lime-ash is avoided to enter flue, generation flue blocks, and discharge air through the low-temperature airflow that turbofan dish flows out, the greenhouse effects to environment can be reduced.

Certainly, implement arbitrary product of the present utility model might not need to reach above-described all advantages simultaneously.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the utility model embodiment, be briefly described describing the required accompanying drawing used to embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of a kind of radome fairing for biomass boiler of the utility model;

Fig. 2 is the fixed mount plan structure schematic diagram of a kind of radome fairing for biomass boiler of the utility model;

Fig. 3 is that the fixed mount of a kind of radome fairing for biomass boiler of the utility model looks up structural representation;

Fig. 4 is the turbofan dish structural representation of a kind of radome fairing for biomass boiler of the utility model;

In accompanying drawing, the list of parts representated by each label is as follows:

1-fixed mount, 2-cross suspension, 3-drainage hood, 4-goat installation device, 5-turbofan dish, the convex axle of 201-, 202-footstool, 501-first order fan ring, 502-second level fan ring, 503-third level fan ring, 504-fan leaf.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to shown in Fig. 1-4, the utility model is a kind of radome fairing for biomass boiler, comprise fixed mount 1, fixed mount 1 is square plate, plate center has circular port, and the upper surface of fixed mount 1 is fixed with cross suspension 2, and the lower surface center of cross suspension 2 is provided with convex axle 201, convex axle 201 and a turbofan dish 5 are rotatably assorted, and turbofan dish 5 is positioned at the circular port of fixed mount 1; The lower surface of fixed mount 1 is fixed with a drainage hood 3.

Wherein, fixed mount 1 is refractory metal material, and four bights are fixed with goat installation device 4 respectively, and goat installation device 4 is fixed on the inwall of biomass combustion room.

Wherein, four ends of cross suspension 2 are vertically respectively equipped with footstool 202, footstool 202 and fixed mount 1 be fixedly adopt to weld or the mode of screw; The convex axle 201 that cross suspension 2 is arranged is provided with bearing, end is provided with external screw thread, the first order of bearing and turbofan dish 5 fans the inner hole of ring 501, and fixes convex axle 201 axle head with nut, makes turbofan dish 5 under the air-flow of HTHP, promote fan leaf 504 and freely rotates.

Wherein shown in accompanying drawing 3, drainage hood 3 is a projective table type cover body, adopts high temperature resistant material, and drainage hood 3 is arranged on above the heat exchanger of biomass combustion indoor; On the one hand, the thermal current of biomass combustion locular wall side is directed on turbofan dish 5; On the other hand, by turbofan dish 5, thermal current is reflexed on heat exchanger, improve energy utilization rate, and the impurity of burning is filtered.

Wherein shown in accompanying drawing 4, turbofan dish 5 comprises first order fan ring 501, second level fan ring 502, third level fan ring 503 and fan leaf 504, and first order fan ring 501 is fanned between ring 502 with the second level and is fixedly connected with by some fan leafs 504; Second level fan ring 502 is fanned between ring 503 with the third level and is fixedly connected with by some fan leafs 504; Some fan leafs 504 are fixed with outside third level fan ring 503.

The application process of the present embodiment is:

First, a fixed mount 1 is fixedly mounted by above the heat exchanger of biomass combustion indoor.The burning gases of high temperature by the feedwater heating in heat exchanger, and produce high steam, and the burning gases of high temperature flow through turbofan dish 5 in the middle part of combustion chamber, promote fan leaf 504 and turbofan dish 5 is rotated on cross suspension 2; The burning gases of high temperature flow through drainage hood 3 along the thermal current of sidewall of combustion chamber and focus on turbofan dish 5; A part of thermal current is gone back on heat exchanger by turbofan dish 5, and is filtered by the impurity that burning produces.Afterwards, the continuous rotation of turbofan dish 5, carries out Homogeneous phase mixing by thermal current, makes heat exchanger thermally equivalent, improves heat exchange efficiency and energy utilization rate.

Disclosed the utility model preferred embodiment just sets forth the utility model for helping above.Preferred embodiment does not have all details of detailed descriptionthe, does not limit the detailed description of the invention that this utility model is only described yet.Obviously, according to the content of this description, can make many modifications and variations.This description is chosen and is specifically described these embodiments, is to explain principle of the present utility model and practical application better, thus makes art technical staff understand well and to utilize the utility model.The utility model is only subject to the restriction of claims and four corner and equivalent.

Claims (5)

1. the radome fairing for biomass boiler, it is characterized in that, comprise fixed mount (1), described fixed mount (1) is square plate, plate center has circular port, the upper surface of described fixed mount (1) is fixed with cross suspension (2), the lower surface center of described cross suspension (2) is provided with convex axle (201), described convex axle (201) and a turbofan dish (5) are rotatably assorted, and described turbofan dish (5) is positioned at the circular port of fixed mount (1); The lower surface of described fixed mount (1) is fixed with a drainage hood (3).

2. a kind of radome fairing for biomass boiler according to claim 1, it is characterized in that, described fixed mount (1) is refractory metal material, four bights are fixed with goat installation device (4) respectively, and described goat installation device (4) is fixed on the inwall of biomass combustion room.

3. a kind of radome fairing for biomass boiler according to claim 1, it is characterized in that, four ends of described cross suspension (2) are vertically respectively equipped with footstool (202), described footstool (202) and fixed mount (1) be fixedly adopt to weld or the mode of screw; The upper described convex axle (201) arranged of described cross suspension (2) is provided with bearing, and end is provided with external screw thread.

4. a kind of radome fairing for biomass boiler according to claim 1, it is characterized in that, described drainage hood (3) is a projective table type cover body, adopts high temperature resistant material, and described drainage hood (3) is arranged on above the heat exchanger of biomass combustion indoor.

5. a kind of radome fairing for biomass boiler according to claim 1, it is characterized in that, described turbofan dish (5) comprises first order fan ring (501), second level fan ring (502), third level fan ring (503) and fan leaf (504), and described first order fan ring (501) and the second level are fanned between ring (502) and is fixedly connected with by some fan leafs (504); Described second level fan ring (502) and the third level are fanned between ring (503) and are fixedly connected with by some fan leafs (504); Described third level fan ring (503) outside is fixed with some fan leafs (504).