CN211853965U

CN211853965U - Steam boiler waste heat recovery device

Info

Publication number: CN211853965U
Application number: CN202020547391.XU
Authority: CN
Inventors: 付涛; 李洪霖; 曲叶舟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2020-11-03
Anticipated expiration: 2030-04-14

Abstract

The utility model discloses a steam boiler waste heat recovery device belongs to the waste heat recovery field, including the boiler body, boiler body right side fixedly connected with discharges fume the pipe, and the pipe internally mounted that discharges fume has first filter screen, and the second filter screen is installed on first filter screen right side, the pipe right side fixedly connected with of discharging fume advances the mouth, advances mouth right side fixedly connected with heat transfer case, and open in heat transfer case upper portion left side has the water inlet, and the water inlet right side is opened there is the delivery port, water inlet and delivery port internally mounted have the water pipe, heat transfer case internally mounted has a plurality of fin, heat transfer case lower part fixedly connected with drain, heat transfer case right side fixedly connected with outlet flue, outlet flue right side fixedly connected with gas cleaning device. The heat of the boiler can be insulated by arranging the first heat insulation cotton and the second heat insulation cotton, and the recovery is facilitated. The utility model discloses, simple structure, it is effectual to keep warm, and heat utilization rate is high, has important meaning in steam boiler's waste heat recovery field.

Description

Steam boiler waste heat recovery device

Technical Field

The utility model relates to a waste heat recovery field specifically is a steam boiler waste heat recovery device.

Background

The waste heat refers to sensible heat and latent heat which are not reasonably utilized in the original design in the energy consumption device of the put-in-operation industrial enterprise due to the limitations of factors such as history, technology, concept and the like. The method comprises the steps of high-temperature waste gas waste heat, cooling medium waste heat, high-temperature product and slag waste heat, chemical reaction waste heat, combustible waste gas waste liquid, waste material waste heat and the like. According to investigation, the total waste heat resources of all industries account for 17% -67% of the total fuel consumption, and the recyclable waste heat resources account for 60% of the total waste heat resources.

The flue gas of the steam boiler contains a large amount of heat, and if the heat is directly discharged into the air, the energy is wasted. At present, the heat utilization rate of a boiler is not high, the waste heat loss of the boiler is serious, and the existing boiler waste heat recovery device is complex in structure and poor in practicability. Therefore, we propose a steam boiler waste heat recovery device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam boiler waste heat recovery device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a steam boiler waste heat recovery device, includes boiler body, boiler body right side fixedly connected with discharges fume the pipe, and the pipe internally mounted that discharges fume has first filter screen, and the second filter screen is installed on first filter screen right side, the pipe right side fixedly connected with of discharging fume advances the mouth, advances mouth right side fixedly connected with heat transfer case, and it has the water inlet to open in heat transfer case upper portion left side, and the water inlet right side is opened there is the delivery port, water inlet and delivery port internally mounted have the water pipe, heat transfer case internally mounted has a plurality of fin, heat transfer case lower part fixedly connected with drain, heat transfer case right side fixedly connected with outlet flue, outlet flue right side fixedly connected with gas cleaning device, gas cleaning device upper portion fixedly connected.

As a further aspect of the present invention: the lower part of the boiler body is fixedly connected with a plurality of mounting racks.

As a further aspect of the present invention: the first heat-preservation cotton is arranged outside the smoke exhaust pipe.

As a further aspect of the present invention: the diameter of the smoke exhaust pipe is smaller than that of the smoke inlet.

As a further aspect of the present invention: the first filter screen is made of a stainless steel wire mesh.

As a further aspect of the present invention: the water pipe is a coiled pipe.

As a further aspect of the present invention: and a drain valve is arranged in the middle of the drain outlet.

As a further aspect of the present invention: and a second heat-preservation cotton is arranged outside the heat exchange box.

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

the utility model provides a steam boiler waste heat recovery device, simple structure, convenient operation can keep warm the heat of boiler through setting up first heat preservation cotton and second heat preservation cotton, is favorable to retrieving, through setting up first filter screen and second filter screen, can filter the impurity in the flue gas, avoids influencing thermal recovery, and the fin can increase heat radiating area, is favorable to the water pipe to absorb the heat, supplies the enterprise to use with normal atmospheric temperature water heating. The utility model discloses, simple structure, it is effectual to keep warm, and heat utilization rate is high, has important meaning in steam boiler's waste heat recovery field.

Drawings

Fig. 1 is a schematic structural diagram of a steam boiler waste heat recovery device.

Fig. 2 is a schematic structural diagram of a first filter screen in a steam boiler waste heat recovery device.

Fig. 3 is a schematic structural diagram of a heat exchange box in a steam boiler waste heat recovery device.

In the figure: 1-mounting frame, 2-boiler body, 3-smoke exhaust pipe, 4-first filter screen, 5-second filter screen, 6-first heat preservation cotton, 7-smoke inlet, 8-water inlet, 9-water pipe, 10-water outlet, 11-second heat preservation cotton, 12-heat exchange box, 13-smoke outlet, 14-chimney, 15-smoke purification device, 16-radiating fin, 17-blow-down valve and 18-blow-down outlet.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-3, a steam boiler waste heat recovery device comprises a boiler body 2, a plurality of mounting frames 1 are fixedly connected to the lower portion of the boiler body 2, the mounting frames 1 can support and fix the boiler body 1, a smoke exhaust pipe 3 is fixedly connected to the right side of the boiler body 2, first heat insulation cotton 6 is arranged outside the smoke exhaust pipe 3 and can insulate heat in smoke to improve the recovery rate, a first filter screen 4 is arranged inside the smoke exhaust pipe 3, the first filter screen 4 is made of a stainless steel wire mesh, a second filter screen 5 is arranged on the right side of the first filter screen 4, the first filter screen 4 and the second filter screen 5 can filter impurities in the smoke to avoid influencing the recovery of heat, a smoke inlet 7 is fixedly connected to the right side of the smoke exhaust pipe 3, the diameter of the smoke exhaust pipe 3 is smaller than that of the smoke inlet 7, a heat exchange box 12 is fixedly connected to the right side of the smoke inlet 7, open on 12 upper portion left sides of heat transfer case has water inlet 8, and open on 8 right sides of water inlet has delivery port 10, water inlet 8 and delivery port 10 internally mounted have water pipe 9, and water pipe 9 is the coiled pipe, and the coiled pipe can increase the heat absorption area of water pipe, is favorable to heating water, heat transfer case 12 internally mounted has a plurality of fin 16, and fin 16 can increase the heat radiating area of flue gas, 12 lower part fixedly connected with drain 18 of heat transfer case, install blowoff valve 17 in the middle of drain 18, impurity in the flue gas can be arranged to drain 18, 12 right sides fixedly connected with smoke outlet 13 of heat transfer case, 13 right sides fixedly connected with flue gas purification device 15 of smoke outlet, 15 upper portion fixedly connected with chimney 14 of flue gas purification device.

Example 2

The utility model discloses an in another embodiment, this embodiment lies in with the difference of above-mentioned embodiment, heat transfer case 12 outside is provided with second heat preservation cotton 11, and second heat preservation cotton 11 carries out heat preservation with heat transfer case 12, is favorable to the heating of water pipe 9, avoids calorific loss, influences recovery efficiency.

The utility model discloses a theory of operation is: the boiler flue gas passes through first filter screen 4 and second filter screen 5, can filter the impurity in the flue gas, avoids influencing thermal recovery, keeps warm cotton 6 and second through first heat preservation, can keep warm the heat of boiler, avoids calorific loss, is favorable to retrieving, sets up fin 16 and can increase heat radiating area, is favorable to water pipe 9 heat absorption, supplies the enterprise to use with normal atmospheric temperature water heating. The utility model discloses, simple structure, it is effectual to keep warm, and heat utilization rate is high, has important meaning in steam boiler's waste heat recovery field, can also save the manufacturing cost of enterprise.

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. Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A steam boiler waste heat recovery device comprises a boiler body (2) and is characterized in that a smoke exhaust pipe (3) is fixedly connected to the right side of the boiler body (2), a first filter screen (4) is installed inside the smoke exhaust pipe (3), a second filter screen (5) is installed on the right side of the first filter screen (4), a smoke inlet (7) is fixedly connected to the right side of the smoke exhaust pipe (3), a heat exchange box (12) is fixedly connected to the right side of the smoke inlet (7), a water inlet (8) is formed in the left side of the upper portion of the heat exchange box (12), a water outlet (10) is formed in the right side of the water inlet (8), a water pipe (9) is installed inside the water inlet (8) and the water outlet (10), a plurality of radiating fins (16) are installed inside the heat exchange box (12), a drain outlet (18) is fixedly connected to the lower portion of the heat exchange, the right side of the smoke outlet (13) is fixedly connected with a smoke purifying device (15), and the upper part of the smoke purifying device (15) is fixedly connected with a chimney (14).

2. A steam boiler waste heat recovery device according to claim 1, characterized in that a plurality of mounting frames (1) are fixedly connected to the lower part of the boiler body (2).

3. A steam boiler waste heat recovery device according to claim 1, characterized in that the smoke exhaust pipe (3) is externally provided with first heat insulation cotton (6).

4. A steam boiler waste heat recovery device according to claim 3, characterized in that the diameter of the smoke exhaust pipe (3) is smaller than the diameter of the smoke inlet (7).

5. A steam boiler waste heat recovery device according to claim 1, characterized in that the first filter screen (4) is made of stainless steel wire mesh.

6. A steam boiler waste heat recovery device according to claim 1, characterized in that the water tubes (9) are serpentine tubes.

7. A steam boiler waste heat recovery device according to claim 1, characterized in that a blowdown valve (17) is installed in the middle of the blowdown port (18).

8. A steam boiler waste heat recovery device according to claim 1 or 6, characterized in that the heat exchange box (12) is externally provided with second insulation cotton (11).