CN220286521U - Novel gas furnace pipeline reversing device - Google Patents

Abstract

The utility model relates to the technical field of heating production and processing of industrial gas furnaces, and discloses a novel gas furnace pipeline reversing device. The gas furnace pipeline reversing device combines the combustion air pipeline and the smoke exhaust pipeline into a whole, simplifies the equipment structure and is convenient to overhaul and maintain; the universal joint is connected between the air cylinder and the flashboard, so that the situation that the device is frequently deformed due to overhigh temperature of the hearth in the process of exhausting smoke is avoided, and the fracture of the joint between the air cylinder and the flashboard occurs, thereby avoiding shutdown accidents.

Description

Novel gas furnace pipeline reversing device

Technical Field

The utility model relates to the technical field of heating production and processing of industrial gas furnaces, in particular to a novel gas furnace pipeline reversing device.

Background

With the rapid development of manufacturing industry, different industrial furnace heating equipment is generated, the burner heating structure is also updated continuously for specific needs, the reversing mechanism in the existing manufacturing industry heating furnace is conventionally used for supplying and exhausting air to and from a combustion air and exhaust air separation pipeline, and a cylinder is directly connected with a butterfly valve flashboard to complete the ventilation process in the heating process.

Therefore, we propose a novel gas furnace pipeline reversing device.

Disclosure of Invention

The utility model aims to provide a novel gas furnace pipeline reversing device for solving 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 a novel gas furnace pipeline switching-over device, includes the box, the both ends of box are provided with air intake and exhaust port, the top of box is provided with air inlet cylinder and exhaust gas cylinder side by side, the inside first flashboard and the second flashboard of being provided with side by side of box, first flashboard and second flashboard all upwards extend and stretch out the top of box, first flashboard with connect between the air inlet cylinder and be provided with first universal joint, air inlet cylinder drives first flashboard up-and-down motion, the second flashboard with be connected between the exhaust gas cylinder and be provided with the second universal joint, exhaust gas cylinder drives the up-and-down motion of second flashboard, first flashboard with the bottom of second flashboard all just in time laminating is in the boss department of the box inside.

Preferably, the box body is provided with an observation hole for observing states of the first flashboard and the second flashboard in the box body.

Preferably, rib plates are arranged on the surfaces of the first flashboard and the second flashboard.

Preferably, a heat insulating layer is provided inside the case.

Compared with the prior art, the utility model has the beneficial effects that: the first flashboard is driven to ascend by the air inlet cylinder, the second flashboard is positioned at the boss in the box body to form a combustion air pipeline, the air inlet cylinder drives the first flashboard to descend and is positioned at the boss in the box body, and the smoke exhaust cylinder drives the second flashboard to ascend to form a smoke exhaust pipeline, so that the combustion air pipeline and the smoke exhaust pipeline are combined into a whole, the equipment structure is simplified, and the overhaul and the maintenance are convenient; the universal joint is arranged between the air cylinder and the flashboard, so that the displacement requirement of the connecting rod in the system operation process is met, deformation caused by frequent use of the device due to overhigh temperature of the hearth is avoided, the situation of fracture of the connecting part between the air cylinder and the flashboard is avoided, and further, shutdown accidents are avoided.

Drawings

FIG. 1 is a side semi-sectional view of the present utility model;

fig. 2 is a top view of the present utility model.

In the figure: 1. a case; 2. an air inlet; 3. a smoke outlet; 4. an air inlet cylinder; 5. a smoke exhaust cylinder; 6. a first shutter; 7. a first universal joint; 8. a second universal joint; 9. and (5) observing the hole.

Detailed Description

The following detailed description of the present utility model clearly and fully describes the technical solutions of the embodiments of the present utility model, and it is apparent that the described embodiments 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, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, 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.

Referring to fig. 1 and 2, the utility model comprises a box body 1, an air inlet 2 and a smoke exhaust port 3 are arranged at two ends of the box body 1, an air inlet cylinder 4 and a smoke exhaust cylinder 5 are arranged at the top of the box body 1 side by side, a first gate plate 6 and a second gate plate are arranged in the box body 1 side by side, the first gate plate 6 and the second gate plate extend upwards and extend out of the top of the box body 1, a first universal joint 7 is connected between the first gate plate 6 and the air inlet cylinder 4, the air inlet cylinder 4 drives the first gate plate 6 to move up and down, a second universal joint 8 is connected between the second gate plate and the smoke exhaust cylinder 5, the smoke exhaust cylinder 5 drives the second gate plate to move up and down, and the bottoms of the first gate plate 6 and the second gate plate are just attached to a boss in the box body 1.

Specifically, the box body is formed by welding Q235 steel plates, the air inlet cylinder 4 and the smoke exhaust cylinder 5 are cylinders with the model of LTSC80X75-FA-Y, the axial stroke is 250mm, the bottoms of the first flashboard 6 and the second flashboard can be just attached to the boss in the box body 1, so that the pipeline can be completely closed, and the air inlet and outlet tightness is ensured; the air inlet cylinder 4, the first universal joint 7 and the first flashboard 7 are kept axially concentric, the smoke exhaust cylinder, the second universal joint 8 and the second flashboard are also kept axially concentric, the two ends of the first universal joint 7 and the second universal joint 8 are both made into external threads and are used for being connected with the air cylinder and the flashboard, the universal joint meets the displacement requirement of a connecting rod in the running process of the system, and the situation that the connecting rod is broken due to high temperature and other factors is avoided.

The box 1 is provided with an observation hole 9, and the observation hole 9 is used for observing states of the first flashboard 6 and the second flashboard in the box 1.

Specifically, four observation holes 9 are provided at the front-rear opposite positions of the case 1, and the observation holes 9 are 200×240mm in size for observing whether the first shutter 6 and the second shutter are open or closed in the case 1.

The surfaces of the first flashboard 6 and the second flashboard are provided with rib plates.

Specifically, the first flashboard 6 and the second flashboard are welded with four rib plates with the thickness of 3mm, and are fixed.

The inside of the box body 1 is provided with a heat insulation layer.

Specifically, a 20mm heat insulation layer is arranged in the box body 1, so that the stability of each structure in the environment of 300 ℃ for a long time is ensured.

The working principle of the utility model is as follows:

firstly, in the heating process of a gas furnace, combustion air and exhaust smoke are required to be converted, an electromagnetic valve of an air inlet cylinder 4 is opened after receiving an electric signal and transmitting the electric signal, the air inlet cylinder 4 drives a first flashboard 6 to move upwards, the first flashboard 6 is opened, and at the moment, because a second flashboard is closed, combustion air can only enter from the air inlet 2 and cannot exhaust smoke from the smoke outlet 3, and a burner performs flaming, so that the combustion air enters the box body 1;

the second step, after stopping flaming, the solenoid valve of air inlet cylinder 4 receives the closing signal, and air inlet cylinder 4 drives first flashboard 6 downstream this moment, can drop to the bottom and paste the inside boss department of box 1 tightly, reaches airtight, and the cylinder 5 of discharging fume of opposite side receives the instruction, drives second flashboard upward movement, because the closure of first flashboard between air intake 2 and the exhaust port 3 this moment, can only follow from the exhaust port 3 and discharge fume, changes the smoke channel into, accomplishes the work of discharging fume. And (5) reciprocating circulation to finish the processes of air supply combustion supporting and exhausting.

The design structure is simple, the problems of equipment faults and difficult maintenance caused by high temperature are avoided, the input cost is low, the tightness of the reversing pipeline is stronger, the furnace pressure is more stable, the safety performance is greatly enhanced, the production continuity is also ensured, the workpiece can be normally heated according to the process requirement, the production efficiency is improved, the cost of enterprises is reduced, the emission of nitrogen sulfide is reduced, and the social benefit is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. The utility model provides a novel gas furnace pipeline switching-over device, includes box (1), its characterized in that: the utility model discloses a box, including box (1), box, first flashboard (6), second flashboard, air inlet (4) and exhaust port (3) are provided with air intake (2) and exhaust port (3) in both ends of box (1), the top of box (1) is provided with air inlet cylinder (4) and exhaust cylinder (5) side by side, the inside first flashboard (6) and the second flashboard of being provided with side by side of box (1), first flashboard (6) and second flashboard all upwards extend and stretch out the top of box (1), first flashboard (6) with be connected between air inlet cylinder (4) and be provided with first universal joint (7), air inlet cylinder (4) drive first flashboard (6) up-and-down motion, the second flashboard with be connected between exhaust cylinder (5) and be provided with second universal joint (8), exhaust cylinder (5) drive second flashboard up-and down motion, first flashboard (6) with the bottom of second flashboard is just in time laminated in the boss department of box (1).

2. The novel gas burner pipeline reversing device according to claim 1, wherein: the box body (1) is provided with an observation hole (9), and the observation hole (9) is used for observing states of the first flashboard (6) and the second flashboard in the box body (1).

3. The novel gas burner pipeline reversing device according to claim 1, wherein: the surfaces of the first flashboard (6) and the second flashboard are provided with rib plates.

4. The novel gas burner pipeline reversing device according to claim 1, wherein: the inside of the box body (1) is provided with a heat insulation layer.