CN214620072U

CN214620072U - Novel energy-saving phase-change heat storage boiler

Info

Publication number: CN214620072U
Application number: CN202120560327.XU
Authority: CN
Inventors: 吕仕铭
Original assignee: Suzhou Lianzhen Machinery Technology Co ltd
Current assignee: Suzhou Lianzhen Machinery Technology Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-05
Anticipated expiration: 2031-03-18

Abstract

The utility model provides a novel energy-saving phase-change heat storage boiler, wherein an inner sealing head and an end cover form a water storage chamber; the air duct, the hearth, the end cover and the air duct choke plug form an air supply flow channel; the steam pocket cover, the steam pocket lava cover, the steam pocket choke plug and the end cover form a phase-change material filling area; the hearth, the steam pocket cover, the steam pocket choke plug and the end cover form a steam pocket. Water enters the water storage chamber from the water inlet pipe, water in the water storage chamber enters the water cooling wall after being preheated by the combustion flame, the water exchanges heat with the combustion flame in the water cooling wall to form steam and then enters the steam pocket, and the steam is conveyed outwards through the steam pipe. Air enters the air supply flow channel through the air inlet pipe, is preheated by the hearth and is sent into the hearth through the air supply pipe. The flame in the hearth can preheat water in the water storage chamber and feed air, and the water in the water storage chamber can also absorb the heat of flue gas in the chimney, so that the heat utilization rate of the boiler is improved, the energy consumption is reduced, and the boiler is ensured to be started quickly; the filled phase change material can improve the dryness of the delivered steam and enhance the start-up response characteristics of the boiler when releasing heat.

Description

Novel energy-saving phase-change heat storage boiler

Technical Field

The utility model belongs to the technical field of the boiler, especially, relate to a novel energy-conserving phase transition heat accumulation boiler.

Background

The boiler is an energy conversion device, which transfers the energy, electric energy or industrial waste heat generated by fuel combustion to a medium (usually water) to reach a certain temperature or a certain pressure, so as to obtain energy in the forms of heat energy, mechanical energy or electric energy, and is widely applied to various industries. But increases energy consumption if the boiler heat utilization is not high. In addition, if the boiler supply air temperature is too low, boiler startup is not utilized.

The phase change material is a material which can change the physical state without changing the chemical state by absorbing or releasing heat, the phase change temperature of different phase change materials is different, the temperature of the phase change material is almost kept unchanged in the phase change process, and the heat released in the phase change process is quite large. Currently, phase change materials are used in boilers, primarily in the form of electric heating, with other types of boilers being less commonly used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel energy-conserving phase transition heat accumulation boiler to solve the problem among the prior art.

In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:

in one embodiment, a novel energy-saving phase-change heat storage boiler is provided, including: the device comprises a combustor, an outer seal head, an air duct choke plug, an air supply pipe, a hearth, a steam pocket choke plug, an air duct, a steam pocket lava cover, a water inlet pipe, a steam pipe, an air inlet pipe, a chimney, an end cover, a water-cooled wall, a steam pocket cover, an inner seal head and a partition plate;

the inner end enclosure and the end cover form a water storage chamber, and the water inlet pipe is arranged on the lower side of the water storage chamber; one end of the water-cooled wall is connected with the inner sealing head, and the other end of the water-cooled wall is connected with the hearth; the chimney penetrates through the end cover and the water storage chamber to be connected with the inner sealing head.

The air duct, the hearth, the end cover and the air duct choke plug form an air supply flow channel, the air inlet pipe is arranged on the left side of the air duct, and the air supply pipe is arranged on the upper side of the air duct; one end of the blast pipe is connected with the air channel, and the other end of the blast pipe is connected with the combustor;

the hearth, the steam pocket cover, the steam pocket choke plug and the end cover form a steam pocket.

As a further improvement of the utility model, the steam pocket lava cover with the round hole has been seted up respectively in the left side of steam pocket lid, with the steam pipe links to each other.

As a further improvement, the division board quantity is a pair of, sets up respectively the furnace both sides, with end cover, steam pocket vexed head and steam pocket lava lid link to each other, separate air supply runner and steam pocket.

As a further improvement of the present invention, the drum cover, the drum lava cover, the drum bulkhead and the end cover form a phase change material filling area.

As a further improvement, the phase change material filling area is filled with phase change material phase change points and steam discharge temperature matched phase change material.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the inner seal head and the end cover can form a water storage chamber at the tail part of the hearth, water in the water storage chamber entering the water-cooled wall can be preheated by combustion flame, the water in the water storage chamber can also absorb the heat of smoke in the chimney, the using effect and the heat utilization rate of the boiler are improved, and meanwhile, the deformation phenomenon caused by nonuniform heating of a boiler tail part can be prevented.

2. The combustion flame can heat an air supply flow channel formed by the air channel and the hearth, preheated air enters the combustor through the air supply pipe, the boiler is favorably started, the combustion heat of the boiler is further utilized, the heat utilization rate is improved, and the energy consumption is reduced.

3. The steam pocket can be heated when the combustion flame heats the water-cooled wall, thereby improving the dryness of the steam outlet, preventing the steam from being cooled and condensed and improving the quality of the steam.

4. A phase change material filling area formed by the steam pocket cover, the steam pocket choke plug, the end cover and the steam pocket lava cover can exchange heat with steam in the steam pocket by phase change latent heat released by the phase change material, so that the quality of the conveyed steam is improved; meanwhile, the boiler can be warmed, and the starting response characteristic of the boiler is enhanced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic front sectional view of the present invention.

Fig. 3 is a schematic view of the right-side sectional structure of the present invention.

Fig. 4 is a schematic view of the air duct structure of the present invention.

Reference numerals: 1-a burner; 2-outer end enclosure; 3-air duct choke plug; 4-blast pipe; 5-hearth; 6-steam pocket choke plug; 7-an air duct; 8-drum lava cover; 9-a water inlet pipe; 10-steam pipe; 11-an air inlet pipe; 12-a chimney; 13-end cap; 14-water-cooled wall; 15-steam drum cover; 16-inner end enclosure; 17-partition plate.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiments, and the structural, method, or functional changes made by those skilled in the art according to the embodiments are all included in the scope of the present invention.

As shown in fig. 1-3, the utility model provides a novel energy-conserving phase transition heat accumulation boiler, include: the device comprises a combustor 1, an outer sealing head 2, an air duct bulkhead 3, an air supply pipe 4, a hearth 5, a steam pocket bulkhead 6, an air duct 7, a steam pocket lava cover 8, a water inlet pipe 9, a steam pipe 10, an air inlet pipe 11, a chimney 12, an end cover 13, a water-cooled wall 14, a steam pocket cover 15, an inner sealing head 16 and a partition plate 17.

The inner end socket 16 and the end cover 13 form a water storage chamber, and the water inlet pipe 9 is arranged at the lower side of the water storage chamber; one end of the water-cooled wall 14 is connected with the inner seal head 16, and the other end of the water-cooled wall is connected with the hearth 5; the chimney 12 passes through the end cover 13 and the water storage chamber and is connected with the inner seal head 16. The hearth 5, the steam drum cover 15, the steam drum bulkhead 6 and the end cover 13 form a steam drum; round holes are respectively formed in the left sides of the steam pocket lava cover 8 and the steam pocket cover 15 and are connected with the steam pipe 10. Water enters the water storage chamber from the water inlet pipe 9, water in the water storage chamber enters the water cooling wall 14 after being preheated by the combustion flame, the water and the combustion flame perform countercurrent heat exchange in the water cooling wall 14 to form steam, the steam enters the steam drum, and the steam in the steam drum is conveyed outwards through the steam pipe 10. The combustion flame heats the water in the water storage chamber of the water-cooled wall 14 and the steam in the steam drum, and simultaneously, the water in the water storage chamber can also absorb the heat of the flue gas in the chimney 12, thereby improving the heat utilization rate and the steam outlet quality of the boiler, reducing the energy consumption and simultaneously preventing the deformation phenomenon caused by uneven heating of the tail part of the boiler.

The air duct 7 and the hearth 5 form an air supply channel, the air inlet pipe 11 is arranged on one side of the air duct 7, one end of the air supply pipe 4 is connected with the air duct 7, and the other end of the air supply pipe is connected with the combustor 1. Air enters the air supply flow channel through the air inlet pipe 11, is preheated in the hearth and then is sent into the hearth 5 through the air supply pipe 4, so that the starting of the boiler is facilitated, the combustion heat of the boiler is further utilized, the heat utilization rate is improved, and the energy consumption is reduced.

The two partition plates are respectively arranged on two sides of the hearth and connected with the end cover, the steam pocket choke plug and the steam pocket lava cover to separate the air supply flow channel from the steam pocket.

The steam drum cover 15, the steam drum lava cover 8, the steam drum bulkhead 6 and the end cover 13 form a phase change material filling area, phase change materials with phase change points matched with the steam discharge temperature are filled, and phase change latent heat released by the phase change materials can exchange heat with steam in the steam drum, so that the quality of the conveyed steam is improved; meanwhile, the boiler can be warmed, and the starting response characteristic of the boiler is enhanced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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 description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel energy-conserving phase transition heat accumulation boiler which characterized in that includes: the device comprises a combustor (1), an outer sealing head (2), an air duct choke plug (3), an air supply pipe (4), a hearth (5), a steam pocket choke plug (6), an air duct (7), a steam pocket lava cover (8), an air inlet pipe (9), a steam pipe (10), an air inlet pipe (11), a chimney (12), an end cover (13), a water-cooled wall (14), a steam pocket cover (15), an inner sealing head (16) and a partition plate (17);

the inner seal head (16) and the end cover (13) form a water storage chamber, and the water inlet pipe (9) is arranged on the lower side of the water storage chamber; one end of the water-cooled wall (14) is connected with the inner seal head (16), and the other end of the water-cooled wall is connected with the hearth (5); the chimney (12) penetrates through the end cover (13) and the water storage chamber and is connected with the inner seal head (16);

the air duct (7), the hearth (5), the end cover (13) and the air duct choke plug (3) form an air supply channel, the air inlet pipe (11) is arranged on the left side of the air duct (7), and the air supply pipe (4) is arranged on the upper side of the air duct; one end of the blast pipe (4) is connected with the air channel (7), and the other end of the blast pipe is connected with the combustor (1);

the hearth (5), the steam drum cover (15), the steam drum choke plug (6) and the end cover (13) form a steam drum.

2. The novel energy-saving phase-change heat storage boiler as claimed in claim 1, wherein: round holes are respectively formed in the left sides of the steam pocket lava cover (8) and the steam pocket cover (15) and are connected with the steam pipe (10).

3. The novel energy-saving phase-change heat storage boiler as claimed in claim 1, wherein: the partition plates (17) are a pair and are respectively arranged on two sides of the hearth (5) and connected with the end cover (13), the steam pocket choke plug (6) and the steam pocket lava cover (8).

4. The novel energy-saving phase-change heat storage boiler as claimed in claim 1, wherein: the steam pocket cover (15), the steam pocket lava cover (8), the steam pocket choke plug (6) and the end cover (13) form a phase-change material filling area.

5. The novel energy-saving phase-change heat storage boiler according to claim 4, wherein: and the phase change material filling area is filled with phase change materials of which the phase change points are matched with the steam discharge temperature.