CN117628484A - Steam boiler with low energy consumption - Google Patents

Abstract

The invention discloses a steam boiler with low energy consumption, which comprises an upper box body, a boiler body and a burner, wherein the upper box body is fixed at the upper end of the boiler body, the upper box body and the boiler body are both in a cylindrical structure, the burner is fixed at the bottom center of the boiler body, a diversion hole is arranged at the center of the boiler body, a steam cavity and a heat preservation cavity are arranged in the upper box body, the heat preservation cavity is in an annular structure and is arranged around the outer side of the steam cavity, and a steam pipe and an exhaust pipe which are respectively communicated with the steam cavity and the heat preservation cavity are arranged on the upper box body.

Description

Steam boiler with low energy consumption

Technical Field

The invention discloses a steam boiler with low energy consumption, and belongs to the technical field of steam boilers.

Background

Steam boilers refer to industrial boilers which heat water to certain parameters and produce high-temperature steam, the water is heated in a boiler barrel to be changed into steam, and fire gives out heat in a hearth, namely the principle of the steam boilers. The steam boiler may be classified into an electric steam boiler, a fuel oil steam boiler, a gas steam boiler, etc. according to fuel; the steam boiler can be divided into a vertical steam boiler and a horizontal steam boiler according to the structure. The traditional steam boiler utilizes the burner to burn fuel and produces high temperature flue gas and heat the water in the boiler, because the area that high temperature flue gas heated the furnace body is limited, the temperature of high temperature flue gas when discharging the furnace body is still very high simultaneously, directly discharges in the air, has not only caused the thermal pollution of air, and boiler holistic energy loss and loss are great simultaneously.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a steam boiler with low energy consumption.

The steam boiler comprises an upper box body, a boiler body and a combustor, wherein the upper box body is fixed at the upper end of the boiler body, the upper box body and the boiler body are of a cylindrical structure, the combustor is fixed at the bottom center of the boiler body, a flow guide hole is arranged at the center of the boiler body, a steam cavity and a heat preservation cavity are arranged in the upper box body, the heat preservation cavity is of an annular structure and surrounds the outer side of the steam cavity, a steam pipe and an exhaust pipe which are respectively communicated with the steam cavity and the heat preservation cavity are arranged on the upper box body, a water collecting cavity is arranged in the boiler body, a water inlet pipe and a water outlet pipe which are communicated with the water collecting cavity are also arranged in the boiler body, a closed backflow cavity is arranged between the boiler body and the upper box body, at least two first space rings are arranged at the bottom of the upper box body, a gap is formed between each first space ring and the boiler body, at least two second space rings are arranged on the boiler body, a gap is formed between each second space ring and the upper box body, the upper box body is arranged near the first space ring outside the first space ring, the first space rings are communicated with the steam pipe and the heat preservation cavity, the other ends of the two space rings are communicated with the steam pipe, and the heat preservation cavity is communicated with the other ends of the steam pipe, and the heat preservation cavity is arranged at the top ends of the heat insulation pipe, and the heat insulation pipe is communicated with the heat pipe, and the heat insulation pipe is arranged in a certain mode, and the heat insulation pipe is communicated with the heat pipe.

Preferably, the serpentine tube comprises a plurality of corners and straight flow tubes, both of which are provided with flanges, both of which are fastened by bolts.

Preferably, the evaporation pipe is provided with a plurality of L-shaped connecting pipes, and the straight flow pipe is in threaded connection with the connecting pipes.

Preferably, a plurality of heat conducting fins distributed in an array are arranged in the evaporation tube.

Preferably, the purifier is detachably arranged on the exhaust pipe.

Preferably, the upper box body comprises a box seat and a box cover, the heat preservation cavity and the steam cavity are all arranged in the box seat, the box cover is fixedly connected with the box seat through bolts, and annular protrusions are arranged on the furnace body and the box seat and are fixedly connected with each other through bolts.

Compared with the prior art, the invention has the beneficial effects that:

1. through setting up evaporating pipe, coiled pipe, first spacer ring and second spacer ring, utilize the high temperature flue gas that the burning fuel produced of combustor to heat evaporating pipe for the water in the evaporating pipe intensifies and produces the vapor, adds water to evaporating pipe through inlet tube and coiled pipe, and the water in the coiled pipe is preheated by the high temperature flue gas that flows all around from the furnace body center before getting into evaporating pipe, can shorten the time of water evaporation, and carry out reuse to the waste heat of high temperature flue gas, thereby effectual consumption that has reduced the energy.

2. The plurality of coiled pipes preheat water and simultaneously can promote the heated area of water, not only can reach quick heating up's effect, also can promote the heat energy utilization ratio of high temperature flue gas to the high temperature flue gas encircles the outside in the steam chamber after getting into the heat preservation chamber, makes the temperature in steam chamber maintain in a certain limit, reduces the condition that the steam congeals into the drop of water because of the temperature decline.

Drawings

FIG. 1 is a schematic view of a steam boiler with low energy consumption according to the present invention;

FIG. 2 is a schematic view showing an internal structure of a steam boiler with low energy consumption according to the present invention;

FIG. 3 is a schematic view of a serpentine tube and furnace according to the present invention;

FIG. 4 is a schematic view of the structure of a serpentine tube and an evaporating tube according to the present invention;

FIG. 5 is a schematic view of the evaporating tube according to the present invention;

FIG. 6 is a schematic view of the structure of the upper case in the present invention;

FIG. 7 is a schematic view of the structure of the box base of the present invention;

reference numerals: 1. an exhaust pipe; 2. a purifier; 3. a steam pipe; 4. a case cover; 5. a ring bulge; 6. a furnace body; 7. a drain pipe; 8. a burner; 9. a water inlet pipe; 10. a heat preservation cavity; 11. a serpentine tube; 12. a reflow chamber; 13. a water collecting cavity; 14. a deflector aperture; 15. a second spacer ring; 16. a first spacer; 17. a steam chamber; 18. an evaporation tube; 19. an upper case; 20. a corner; 21. a flange plate; 22. a heat conductive sheet; 23. a connecting pipe; 24. a through hole; 25. a box base; 26. a straight flow pipe.

Detailed Description

The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1-7, a steam boiler with low energy consumption comprises an upper box 19, a furnace body 6 and a burner 8, wherein the upper box 19 is fixed at the upper end of the furnace body 6, both are in a cylindrical structure, the burner 8 is fixed at the bottom center of the furnace body 6, a diversion hole 14 is arranged at the center of the furnace body 6, a steam cavity 17 and a heat preservation cavity 10 are arranged in the upper box 19, the heat preservation cavity 10 is in an annular structure and is arranged around the outer side of the steam cavity 17, a steam pipe 3 and an exhaust pipe 1 which are respectively communicated with the steam cavity 17 and the heat preservation cavity 10 are arranged on the upper box 19, a water collecting cavity 13 is arranged in the furnace body 6, a water inlet pipe 9 and a water outlet pipe 7 which are respectively communicated with the water collecting cavity 13 are also arranged in the furnace body 6, a closed backflow cavity 12 is arranged between the furnace body 6 and the upper box 19, the bottom of the upper box 19 is provided with at least two first space rings 16, a gap is reserved between the first space rings 16 and the furnace body 6, the furnace body 6 is provided with at least two second space rings 15, a gap is reserved between the second space rings 15 and the upper box 19, the position, close to the first space rings 16 at the outermost side, of the upper box 19 is provided with a through hole 24 communicated with the heat preservation cavity 10, so that high-temperature flue gas generated by burning fuel of the burner 8 enters the heat preservation cavity 10 in a serpentine flow mode along the first space rings 16 and the second space rings 15, the center of the upper box 19 is provided with an evaporation pipe 18 communicated with the steam cavity 17, a plurality of serpentine pipes 11 are arranged at equal angles on the outer sides of the evaporation pipe 18, one ends of the serpentine pipes 11 are communicated with the bottom of the evaporation pipe 18, and the other ends of the serpentine pipes 11 are communicated with the water collection cavity 13.

The coiled pipe 11 comprises a plurality of corner heads 20 and straight flow pipes 26, flange plates 21 are arranged on the corner heads 20 and the straight flow pipes 26, the two flange plates 21 are fixed through bolts, a plurality of L-shaped connecting pipes 23 are arranged on the evaporation pipes 18, the straight flow pipes 26 are in threaded connection with the connecting pipes 23, and the coiled pipe 11 and the evaporation pipes 18 can be conveniently disassembled and assembled due to the design, and split installation is simpler and more convenient.

The evaporation tube 18 is internally provided with a plurality of heat conducting fins 22 distributed in an array, the heat conduction of the evaporation tube 18 can be quickened by utilizing the heat conducting fins 22, the heated area of water is increased, the evaporation speed of the water is improved, the purifier 2 is detachably arranged on the exhaust tube 1, and the purifier 2 can adsorb harmful substances in smoke, so that the emission standard is reached.

The upper box body 19 comprises a box seat 25 and a box cover 4, the heat preservation cavity 10 and the steam cavity 17 are arranged in the box seat 25, the box cover 4 is fixedly connected with the box seat 25 through bolts, the furnace body 6 and the box seat 25 are respectively provided with a ring boss 5, the two ring bosses 5 are fixedly connected through bolts, and the upper box body 19 and the furnace body 6 are designed into a component structure, so that the production, the processing and the assembly of each component can be facilitated.

Working principle: the water is introduced into the water collecting cavity 13 from the water inlet pipe 9 and then is dispersed into each coiled pipe 11 and enters the evaporation pipe 18, then the fuel is combusted by the combustor 8 to generate high-temperature flue gas, the high-temperature flue gas directly heats the evaporation pipe 18 and part of the straight flow pipe 26, so that the water is heated to generate water vapor and enters the evaporation cavity, the water collecting cavity 13 and the coiled pipe 11 are kept full of water in the process, the high-temperature flue gas flows up and down from the center of the furnace body 6 along the first spacing ring 16 and the second spacing ring 15 to a position close to the outer side of the furnace body 6, the section of a flow path is in a snake shape, the retention time of the high-temperature flue gas in the furnace body 6 can be increased, the water in the coiled pipe 11 is preheated, the water can be rapidly evaporated when entering the evaporation pipe 18, the utilization rate of the high-temperature flue gas is improved, the energy consumption is effectively reduced, the high-temperature flue gas finally enters the heat preservation cavity 10 from the through hole 24, a heat preservation layer is formed at the outer side of the evaporation cavity, and finally the flue gas is discharged from the furnace body 1 after being treated by the purifier 2.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a steam boiler with low energy consumption, includes last box (19), furnace body (6) and combustor (8), its characterized in that, go up box (19) and fix in the upper end of furnace body (6), and both are cylinder structure, combustor (8) are fixed in the bottom center of furnace body (6), the center on furnace body (6) is provided with guiding hole (14), be provided with steam chamber (17) and heat preservation chamber (10) in last box (19), heat preservation chamber (10) are annular structure to encircle the outside that sets up in steam chamber (17), be provided with steam pipe (3) and blast pipe (1) with steam chamber (17) and heat preservation chamber (10) intercommunication respectively on last box (19), be provided with water collecting chamber (13) in furnace body (6), and furnace body (6) still be provided with inlet tube (9) and drain pipe (7) with water collecting chamber (13) intercommunication, be provided with airtight backward flow chamber (12) between last box (19), it has at least two spacer rings (16) on the bottom of last box (19) and furnace body (16) have, two spacer rings (16) are provided with at least two, the heat-insulating box is characterized in that a gap is formed between the second space ring (15) and the upper box body (19), a through hole (24) communicated with the heat-insulating cavity (10) is formed in the position, close to the first space ring (16) at the outermost side, of the upper box body (19), so that high-temperature smoke generated by burning fuel of the combustor (8) enters the heat-insulating cavity (10) in a serpentine flow mode along the first space ring (16) and the second space ring (15), an evaporating pipe (18) communicated with the steam cavity (17) is arranged in the center of the upper box body (19), a plurality of serpentine pipes (11) are arranged at equal angles on the outer side of the evaporating pipe (18), one end of each serpentine pipe (11) is communicated with the bottom of the evaporating pipe (18), and the other end of each serpentine pipe is communicated with the water collecting cavity (13).

2. A low energy steam boiler according to claim 1, characterized in that the serpentine tube (11) comprises a number of corners (20) and straight pipes (26), both of which corners (20) and straight pipes (26) are provided with flanges (21), both flanges (21) being fastened by means of bolts.

3. A low energy steam boiler according to claim 2, characterized in that the evaporation tube (18) is provided with a plurality of L-shaped structured connection tubes (23), the straight flow tube (26) being in threaded connection with the connection tubes (23).

4. A low energy steam boiler according to claim 3, characterized in that a number of heat conducting fins (22) distributed in an array are arranged in the evaporation tube (18).

5. A low energy steam boiler according to claim 1, characterized in that the exhaust pipe (1) is detachably provided with a purifier (2).

6. The steam boiler with low energy consumption according to claim 1, wherein the upper box body (19) comprises a box seat (25) and a box cover (4), the heat preservation cavity (10) and the steam cavity (17) are both arranged in the box seat (25), the box cover (4) is fixedly connected with the box seat (25) through bolts, annular protrusions (5) are arranged on the furnace body (6) and the box seat (25), and the two annular protrusions (5) are fixedly connected through bolts.