CN219607149U - High-efficiency energy-saving secondary air steam air preheater - Google Patents

Abstract

The utility model discloses an efficient and energy-saving secondary air steam air preheater, which relates to the technical field of air preheaters and comprises a heating cover, wherein a plurality of guide pipes are arranged in the heating cover and are of square structures, two ends of each guide pipe are respectively and fixedly connected with an air inlet pipe and an air outlet pipe, and one ends of each air inlet pipe and one end of each air outlet pipe extend to the outer side of the heating cover. According to the utility model, the heating cover is arranged, the honeycomb duct and the heat conducting pipe for high-temperature steam circulation are arranged in the heating cover, the heat conducting plate is arranged on the outer side of the heat conducting pipe, the plurality of heat conducting fins are arranged on the outer side wall of the heat conducting plate, the heat conducting efficiency of the heat conducting plate can be improved by arranging the heat conducting fins, and the heat conducting plate and the heat conducting pipe are arranged in a separable structure, so that dust accumulated on the heat conducting plate and the heat conducting fins can be cleaned conveniently, and the service life of the device is prevented from being influenced by dust accumulation.

Description

High-efficiency energy-saving secondary air steam air preheater

Technical Field

The utility model relates to the technical field of air preheaters, in particular to an efficient and energy-saving secondary air steam air preheater.

Background

The air preheater is a heating surface for preheating air before entering a boiler to a certain temperature through internal cooling fins by flue gas in a boiler tail flue, and is equipment for improving the heat exchange performance of the boiler and reducing energy consumption.

The traditional primary air steam air preheater adopts a light pipe type pipe row combination, occupies more space, has large metal consumption per heat exchange amount, has poor heat transfer effect, is easy to accumulate ash and wear, is difficult to clean after accumulating ash, and has great influence on the service life of the pipe row due to long-term accumulation of dust. Therefore, it is necessary to invent an efficient and energy-saving overgrate air steam air preheater to solve the above problems.

Disclosure of Invention

The utility model aims to provide an efficient and energy-saving secondary air steam air preheater so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an energy-efficient overgrate air steam air heater, includes the heating mantle, the inside of heating mantle is provided with a plurality of honeycomb ducts, and the honeycomb duct sets up to square structure, the both ends of honeycomb duct are fixedly connected with intake pipe and blast pipe respectively, the one end of intake pipe and blast pipe all extends to the outside of heating mantle, the inside fixedly connected with a plurality of heat pipes of honeycomb duct, and a plurality of heat pipes are equidistant distribution, the both ends of heat pipe all are provided with two fly boards that are symmetrical distribution, the inboard fixedly connected with of fly board a plurality of heat pipes, and the heat pipe sets up to the arc structure with the heat pipe looks adaptation, the lateral wall fixedly connected with of heat pipe a plurality of heat conducting fins that are equidistant distribution, and a plurality of heat conducting fins are equidistant distribution, the one end fixedly connected with incline structure's of heat conducting fin extends the fin.

Preferably, both ends of the movable plate are fixedly connected with connecting lugs, both sides of the honeycomb duct are provided with connecting plates, and both ends of the connecting plates are fixedly connected with connecting seats.

Preferably, locking bolts are arranged in screw holes formed in two ends of the upper surface of the connecting seat, and the locking bolts are connected with the connecting lugs in a penetrating mode.

Preferably, the mounting seats of the L-shaped structures are fixedly connected to the two ends of the outer side face of the connecting plate, and the mounting seats are fixedly connected with the inner wall of the heating cover through bolts.

Preferably, the both ends of heating mantle are all fixedly connected with inlet hood, and the inlet hood sets up to loudspeaker form structure, the both sides of heating mantle all are provided with the dodge gate, and dodge gate and mount pad dislocation distribution.

Preferably, the one end of intake pipe and blast pipe is all fixedly connected with square structure's pipe, the outside both ends of heating mantle all are provided with the steam delivery pipe, the top and the steam delivery pipe fixed connection of pipe.

The utility model has the technical effects and advantages that:

1. according to the utility model, the heating cover is arranged, the guide pipe and the heat conducting pipe for high-temperature steam circulation are arranged in the heating cover, the heat conducting plate is arranged on the outer side of the heat conducting pipe, the plurality of heat conducting fins are arranged on the outer side wall of the heat conducting plate, the heat conducting efficiency of the heat conducting plate can be improved by arranging the heat conducting fins, and the heat conducting fins and the heat conducting pipe can transmit the heat of the high-temperature steam to the air in the process of passing through the heating cover, so that the air can be quickly preheated, and the heat conducting plate and the heat conducting pipe are arranged in a separable structure, so that the dust accumulated on the heat conducting plate and the heat conducting fins can be cleaned conveniently, and the service life of the dust accumulation influencing device is avoided;

2. according to the utility model, the heat conducting plate and the movable plate are arranged, so that the heat conducting plate can be closely attached to the heat conducting pipe, the heat radiating effect of the heat conducting pipe can be improved, the movable plate is arranged at two ends of the heat conducting pipe, the movable plate can be fixedly arranged at the outer side of the heat conducting pipe through the connecting plate and the connecting seat, the position of the heat conducting plate can be fixedly arranged, the bolts between the movable plate and the connecting seat are removed, the limit of the movable plate can be relieved, the heat conducting plate and the heat conducting fins can be detached and cleaned, and the cleaning and maintenance of the device are facilitated.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic front view of the overall structure of the present utility model.

Fig. 3 is a schematic view of a flow guiding tube structure according to the present utility model.

Fig. 4 is a schematic diagram of the positional relationship between the heat pipe and the movable plate according to the present utility model.

Fig. 5 is a schematic structural view of the connecting plate according to the present utility model.

FIG. 6 is a schematic diagram of the positional relationship between a heat conducting plate and a heat conducting fin according to the present utility model.

In the figure: 1. a heating mantle; 2. a flow guiding pipe; 3. an air inlet pipe; 4. an exhaust pipe; 5. a heat conduction pipe; 6. a movable plate; 7. a heat conductive plate; 8. a heat conduction fin; 9. extending the fins; 10. a connecting lug; 11. a connecting plate; 12. a connecting seat; 13. a locking bolt; 14. a mounting base; 15. an air inlet cover; 16. a movable door; 17. a conduit; 18. a steam delivery pipe.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a high-efficiency energy-saving secondary air steam air preheater as shown in figures 1-6, which comprises a heating cover 1, wherein a plurality of guide pipes 2 are arranged in the heating cover 1, the guide pipes 2 are of square structures, two ends of each guide pipe 2 are fixedly connected with an air inlet pipe 3 and an air outlet pipe 4 respectively, one ends of each air inlet pipe 3 and each air outlet pipe 4 extend to the outer side of the heating cover 1, a plurality of heat conducting pipes 5 are fixedly connected in the guide pipes 2, the plurality of heat conducting pipes 5 are distributed at equal intervals, and two movable plates 6 which are symmetrically distributed are arranged at two ends of each heat conducting pipe 5;

specifically, the inner side of the movable plate 6 is fixedly connected with a plurality of heat conducting plates 7, the heat conducting plates 7 are arranged into arc structures matched with the heat conducting pipes 5, the heat conducting plates 7 can be tightly attached to the heat conducting pipes 5 due to the arrangement of the arc structures of the heat conducting plates 7, so that the heat transfer effect between the heat conducting plates 7 and the heat conducting pipes 5 is ensured, the outer side wall of the heat conducting plates 7 is fixedly connected with a plurality of heat conducting fins 8 which are distributed at equal intervals, the plurality of heat conducting fins 8 are distributed at equal intervals, one ends of the heat conducting fins 8 are fixedly connected with extending fins 9 of an inclined structure, and the heat conducting fins 8 are matched with the extending fins 9, so that the contact area between the heat conducting plates 7 and air can be increased, and the preheating effect of the device on the air can be improved;

more specifically, the two ends of the movable plate 6 are fixedly connected with the connecting lugs 10, the two sides of the flow guide pipe 2 are provided with the connecting plates 11, the two ends of the connecting plates 11 are fixedly connected with the connecting seats 12, locking bolts 13 are arranged in screw holes formed in the two ends of the upper surface of the connecting seats 12, the locking bolts 13 are in penetrating connection with the connecting lugs 10, the locking bolts 13 can fix the positions between the connecting seats 12 and the connecting lugs 10, so that the position of the movable plate 6 can be fixed, the two ends of the outer side surface of the connecting plates 11 are fixedly connected with mounting seats 14 of an L-shaped structure, the mounting seats 14 are fixedly connected with the inner wall of the heating cover 1 through bolts, and the mounting seats 14 can realize the mounting and fixing of the heat conducting plates 7;

in addition, the two ends of the heating cover 1 are fixedly connected with the air inlet cover 15, the air inlet cover 15 is in a horn-shaped structure, the two sides of the heating cover 1 are provided with the movable doors 16, the movable doors 16 and the mounting seats 14 are distributed in a staggered manner, and the arrangement of the movable doors 16 facilitates cleaning and maintenance of the inside of the device;

moreover, the pipe 17 of square structure is all fixedly connected with to the one end of intake pipe 3 and blast pipe 4, and the outside both ends of heating mantle 1 all are provided with steam delivery pipe 18, and the top and the steam delivery pipe 18 fixed connection of pipe 17, steam delivery pipe 18 can external steam line to can realize the transportation of high temperature steam.

The working principle of the utility model is as follows:

when the device is used, the air inlet covers 15 at the two ends of the heating cover 1 are connected into the air inlet pipeline of the boiler, air entering the boiler firstly enters the heating cover 1 through the air inlet covers 15, high-temperature steam is conveyed into the guide pipe 2 through the steam conveying pipe 18 and the guide pipe 17 at the moment, the high-temperature steam enters the heat conducting pipe 5 through the guide pipe 2, heat in the high-temperature steam is conveyed to the heat conducting plate 7 through the heat conducting pipe 5 at the moment, the heat conducting plate 7 conveys air to the heat conducting fins 8 and the extending fins 9, at the moment, the air is contacted with the heat conducting fins 8 and the extending fins 9, and the heat on the heat conducting fins 8 and the extending fins 9 is released into the air, so that the air can be preheated;

when the dust on the heat conduction fins 8 and the extension fins 9 is cleaned, the movable door 16 is opened firstly, then the locking bolt 13 is removed, at the moment, the limit between the connecting seat 12 and the connecting lug 10 is released, the limit between the two movable plates 6 is released, at the moment, the movable plates 6 are pulled outwards, the movable plates 6 drive the heat conduction plates 7 to move outwards until the two heat conduction plates 7 are separated from the heat conduction pipes 5, at the moment, the heat conduction plates 7 can be detached, and at the moment, the heat conduction fins 8 and the extension fins 9 can be cleaned.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides an energy-efficient overgrate air steam air preheater, includes heating mantle (1), its characterized in that: the inside of heating mantle (1) is provided with a plurality of honeycomb ducts (2), and honeycomb duct (2) set up to square structure, the both ends of honeycomb duct (2) are fixedly connected with intake pipe (3) and blast pipe (4) respectively, the one end of intake pipe (3) and blast pipe (4) all extends to the outside of heating mantle (1), the inside fixedly connected with a plurality of heat pipe (5) of honeycomb duct (2), and a plurality of heat pipe (5) are equidistant distribution, the both ends of heat pipe (5) all are provided with two fly leaves (6) that are symmetrical distribution, the inboard fixedly connected with of fly leaf (6) a plurality of heat-conducting plates (7), and heat-conducting plate (7) set up to the arc structure with heat-conducting pipe (5) looks adaptation, the lateral wall fixedly connected with of heat-conducting plate (7) is a plurality of equidistant distribution's heat-conducting fin (8), and a plurality of heat-conducting fin (8) are equidistant distribution, the one end fixedly connected with tilting structure's of heat-conducting fin (8) extends fin (9).

2. An efficient and energy-saving overgrate air steam air preheater as set forth in claim 1, wherein: the two ends of the movable plate (6) are fixedly connected with connecting lugs (10), connecting plates (11) are arranged on two sides of the flow guide pipe (2), and connecting seats (12) are fixedly connected to two ends of each connecting plate (11).

3. An efficient and energy-saving overgrate air steam air preheater as set forth in claim 2, wherein: locking bolts (13) are arranged in screw holes formed in two ends of the upper surface of the connecting seat (12), and the locking bolts (13) are connected with the connecting lugs (10) in a penetrating mode.

4. An energy efficient overgrate air steam air preheater as set forth in claim 3, wherein: the two ends of the outer side surface of the connecting plate (11) are fixedly connected with mounting seats (14) of an L-shaped structure, and the mounting seats (14) are fixedly connected with the inner wall of the heating cover (1) through bolts.

5. An efficient and energy-saving overgrate air steam air preheater as set forth in claim 4, wherein: the heating cover is characterized in that two ends of the heating cover (1) are fixedly connected with air inlet covers (15), the air inlet covers (15) are of horn-shaped structures, movable doors (16) are arranged on two sides of the heating cover (1), and the movable doors (16) are distributed in a dislocation mode with the mounting seats (14).

6. An efficient and energy-saving overgrate air steam air preheater as set forth in claim 5, wherein: the heating cover is characterized in that one ends of the air inlet pipe (3) and the air outlet pipe (4) are fixedly connected with square-structure guide pipes (17), steam conveying pipes (18) are arranged at two ends of the outer side of the heating cover (1), and the top ends of the guide pipes (17) are fixedly connected with the steam conveying pipes (18).