CN219319106U

CN219319106U - Flue gas preheater with high stability

Info

Publication number: CN219319106U
Application number: CN202320038770.XU
Authority: CN
Inventors: 陈梓玘; 朱慧; 单一露
Original assignee: Shandong Haoguan Machinery Co ltd
Current assignee: Shandong Haoguan Machinery Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-07-07
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to the technical field of preheaters, in particular to a flue gas preheater with high stability. Its technical scheme includes hydraulic stem, purifying box, installing frame, pre-heater body, fan and closure plate, pre-heater body one end is provided with the purifying box, the inside installing frame that is provided with of purifying box, the inside filter screen that is provided with of installing frame, the inside flue gas pipe that is provided with of pre-heater body, flue gas pipe one end is provided with the kuppe, the inside fan that is provided with of kuppe, the discharge gate has been seted up to the purifying box lower extreme, filter screen one side is provided with the stroke piece, stroke piece one end is provided with the brush, the inside hydraulic stem that is provided with of purifying box upper end. According to the utility model, through the cooperation between the brush and the filter screen structure, dust carried by high-temperature flue gas is filtered, dust is prevented from accumulating in the spiral flue gas pipe, the flue gas flow and the conveying efficiency are ensured, the filter screen is cleaned regularly, and the flue gas preheating stability is higher.

Description

Flue gas preheater with high stability

Technical Field

The utility model relates to the technical field of preheaters, in particular to a flue gas preheater with high stability.

Background

The air preheater is a device for improving the heat exchange performance of the boiler and reducing the energy consumption by heating the air required by combustion by utilizing the heat of the flue gas.

The publication No. CN206531412U relates to a flue gas preheater for a laboratory, and belongs to the technical field of flue gas preheating. The utility model relates to a flue gas preheater for a laboratory, which comprises a preheater body and a flue gas pipeline, wherein end covers are arranged at two ends of the preheater body, fixing holes are formed in the two end covers, the flue gas pipeline is a spiral pipeline and is arranged in the preheater body, two ends of the flue gas pipeline respectively penetrate through the fixing holes in the two end covers, one end of the flue gas pipeline is an air inlet, and the other end of the flue gas pipeline is an air outlet.

The device has simple structural design, realizes large heat transfer area, large rib coefficient and good heat exchange performance, can also enable the effect of fully mixing smoke, but the device heats the required air process of combustion at the heat of smoke, the acquisition paths of the smoke are different, a large amount of dust exists in the available smoke, when the smoke is conveyed through the smoke pipeline which is spirally distributed, the dust is piled up in the pipeline, the pipeline is blocked after long-time use, the preheater is unstable when in use, the smoke conveying flow and efficiency are affected, and therefore, the smoke preheater with strong stability is provided for solving the existing problem.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a smoke preheater with high stability.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flue gas pre-heater that stability is strong, includes hydraulic stem, purifying box, installing frame, pre-heater body, fan and closure plate, pre-heater body one end is provided with the purifying box, the inside installing frame that is provided with of purifying box, the inside filter screen that is provided with of installing frame, the inside flue gas pipe that is the heliciform that is provided with of pre-heater body, flue gas pipe runs through purifying box one end and is provided with the kuppe, the inside fan that is provided with of kuppe, the discharge port has been seted up to the purifying box lower extreme, the discharge port lower extreme is provided with the closure plate, filter screen one side is provided with the stroke piece, stroke piece one end is provided with the brush that the equidistance distributes, the inside hydraulic stem that is provided with of purifying box upper end.

When the high-temperature flue gas of boiler combustion is conveyed to the inside of the purifying box through the air inlet pipe when the high-temperature flue gas with high stability in the scheme is used, the high-temperature flue gas needs to penetrate the filter screen, tiny particle dust in the high-temperature flue gas is intercepted on one side after passing through the filter screen, the flue gas after dust filtration is conveyed through the flue gas pipe after passing through the inside of the guide cover, the fan operates when the flue gas is conveyed, the fan accelerates the flow of the flue gas in the purifying box, the flue gas is prevented from piling up in the inside of the purifying box, the flue gas in the flue gas pipeline is conveyed in the inside of the purifying box, the flue gas preheating stability is higher, the hydraulic rod periodically drives the stroke block to operate, the brush is used for brushing the outer wall of the filter screen, dust on the outer wall of the filter screen is separated, the dust is piled up in the inside of the purifying box, when the purifying box is not used by twisting the screw to release the fixation of the closing plate, and the opening of the discharge port is opened to realize dust treatment in the purifying box.

Preferably, the inner wall of the preheater body is provided with an insulating layer. The heat preservation prevents heat dissipation to the preheater body effectively, is favorable to improving the preheating effect.

Preferably, the outer wall of the fan is provided with a mounting cover, and the mounting cover is connected with the inner wall of the air guide sleeve. The fan is fixed to the installation cover, and the fan is firm inside the kuppe.

Preferably, one end of the purifying box is inserted with an air inlet pipe, and an ash guiding layer is arranged inside the lower end of the purifying box. The air inlet pipe is connected with a high-temperature flue gas discharge device port, and high-temperature flue gas is recycled.

Preferably, the upper end of the closing plate is provided with a heat preservation pad, the heat preservation pad is positioned in the discharge port, the upper end of the closing plate is provided with a sealing pad in a ring shape, and bolts are inserted into the closing plate and the purifying box in a rotating manner. The heat preservation pad increases the heat preservation effect of discharge port department, avoids heat to run off in discharge port department, increases closure sealing nature of closure board discharge port through sealed pad, and the bolt rotates and pegs graft inside closure board and purifying box, fixes the closure board, and the discharge port obtains sealedly.

Preferably, the lower end of the hydraulic rod is connected with the stroke block. The stroke block realizes longitudinal movement through the operation of the hydraulic rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the smoke purification or device is arranged at one end of the preheater to intercept dust in smoke, so that the smoke is prevented from being in a spiral smoke pipe of the smoke static shavings, and the effective transportation of the smoke by the smoke pipe for a long time is ensured; the use process of the smoke preheater has strong stability, and ensures the conveying flow and the conveying efficiency of the smoke;

2. through portable brush, regularly brush and get being vertical filter screen outer wall, the filter screen obtains periodic cleaning, avoids the filter screen to block up the problem that influences flue gas flow, ensures the long-term effective stable use of filtration equipment.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the present utility model;

FIG. 2 is a schematic diagram of a side cross-sectional structure of the purge bin of the present utility model;

FIG. 3 is a schematic diagram of a main cross-sectional enlarged structure of the travel block of FIG. 1 in accordance with the present utility model;

fig. 4 is an enlarged partial sectional view of the closure panel of fig. 1 in accordance with the present utility model.

Reference numerals: 1. a hydraulic rod; 2. a purifying box; 3. a mounting frame; 4. an air inlet pipe; 5. an ash guiding layer; 6. a filter screen; 7. a gas guide window; 8. a preheater body; 9. a flue pipe; 10. a heat preservation layer; 11. a mounting cover; 12. a blower; 13. a travel block; 14. a brush; 15. a closing plate; 16. a thermal insulation pad; 17. and a discharge port.

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.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1

As shown in fig. 1-4, the flue gas preheater with strong stability provided by the utility model comprises a hydraulic rod 1, a purifying box 2, a mounting frame 3, a preheater body 8, a fan 12 and a closing plate 15, wherein one end of the preheater body 8 is provided with the purifying box 2, the inner wall of the preheater body 8 is provided with an insulating layer 10, the inside of the purifying box 2 is provided with the mounting frame 3, the inside of the mounting frame 3 is provided with a filter screen 6, the inside of the preheater body 8 is provided with a spiral flue gas pipe 9, one end of the flue gas pipe 9 penetrating through the purifying box 2 is provided with a guide cover 7, the inside of the guide cover 7 is provided with the fan 12, the outer wall of the fan 12 is provided with a mounting cover 11, the mounting cover 11 is connected with the inner wall of the guide cover 7, and one end of the purifying box 2 is inserted with an air inlet pipe 4.

The working principle based on embodiment 1 is: the flue gas is filtered after passing through the filter screen 6, the flue gas after filtering the dust is carried through flue gas pipe 9 after passing through the kuppe 7 inside, fan 12 operates when the flue gas is carried, fan 12 accelerates the inside flue gas flow of purifying box 2, avoid the flue gas to pile up in purifying box 2 inside, flue gas pipeline 9 inside flue gas, the flue gas is after the inside transport of preheater body 8, can show the heat transfer area that improves the flue gas, it is big to have heat transfer area, rib coefficient is big, the long characteristics of heat transfer time, the preheating effect of flue gas has been improved, the stability of primordial gas preheating is higher.

Example two

As shown in fig. 1-4, the flue gas preheater provided by the present utility model has a high stability, and compared with the first embodiment, the present embodiment further includes: the inside ash guiding layer 5 that is provided with of purifying box 2 lower extreme, discharge port 17 has been seted up to purifying box 2 lower extreme, discharge port 17 lower extreme is provided with closure board 15, closure board 15 upper end is provided with heat preservation pad 16, heat preservation pad 16 is located inside discharge port 17, closure board 15 upper end is provided with and is annular sealed the pad, closure board 15 and the inside equal rotation grafting of purifying box 2 have the bolt, filter screen 6 one side is provided with stroke piece 13, stroke piece 13 one end is provided with the brush 14 that the equidistance distributes, purifying box 2 upper end inside is provided with hydraulic stem 1, hydraulic stem 1 lower extreme is connected with stroke piece 13.

In this embodiment, the hydraulic rod 1 periodically drives the travel block 13 to operate, the brush 14 brushes the outer wall of the filter screen 6, dust on the outer wall of the filter screen 6 is separated, and accumulated in the lower end of the purifying box 2, and when the preheater body 8 is not used, the screw opening and closing plate 15 is screwed to clean the dust in the purifying box 2.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model 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 utility model 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.

Claims

1. The utility model provides a flue gas pre-heater that stability is strong, includes hydraulic stem (1), purifying box (2), installing frame (3), pre-heater body (8), fan (12) and closure plate (15), its characterized in that: the utility model discloses a purifying box, including pre-heater body (8), filter screen (6), air guide sleeve (7) inside be provided with fan (12), discharge port (17) have been seted up to purifying box (2) lower extreme, discharge port (17) lower extreme is provided with closure board (15), filter screen (6) one side is provided with stroke piece (13), stroke piece (13) one end is provided with brush (14) that the equidistance distributes, purifying box (2) upper end inside is provided with hydraulic stem (1).

2. A strong stability flue gas preheater as set forth in claim 1, wherein: an insulating layer (10) is arranged on the inner wall of the preheater body (8).

3. A strong stability flue gas preheater as set forth in claim 1, wherein: the outer wall of the fan (12) is provided with a mounting cover (11), and the mounting cover (11) is connected with the inner wall of the air guide sleeve (7).

4. A strong stability flue gas preheater as set forth in claim 1, wherein: one end of the purifying box (2) is inserted with an air inlet pipe (4), and an ash guiding layer (5) is arranged inside the lower end of the purifying box (2).

5. A strong stability flue gas preheater as set forth in claim 1, wherein: the utility model discloses a purifying box, including closing plate (15), drain hole (17), sealing plate, purifying box (2) and sealing plate, closing plate (15) upper end is provided with heat preservation pad (16), heat preservation pad (16) are located inside drain hole (17), closing plate (15) upper end is provided with is annular sealing pad, closing plate (15) and purifying box (2) are inside all to rotate the grafting has the bolt.

6. A strong stability flue gas preheater as set forth in claim 1, wherein: the lower end of the hydraulic rod (1) is connected with a travel block (13).