CN210921479U - Fire-proof wall for boiler combustion chamber - Google Patents

Abstract

The utility model discloses a fire wall of a boiler combustion chamber, which comprises a wall body and a gas baffle plate, wherein the wall body is composed of at least three layers of structures, the innermost layer is a fire-resistant layer, the thermal-protective layer and the outer layer are supporting layers for supporting, the three layers of structures are closely connected to form the combustion chamber, the tail part of the wall body is provided with a smoke outlet pipe, a convection pipe is arranged below the fire-resistant layer, and the front part of the smoke outlet pipe is provided with the gas baffle plate; the problem that the heat generated by the combustion chamber of the common furnace carries a large amount of heat, which is not beneficial to saving raw materials is solved; compared with the prior art, the device has the advantages of simple structure, higher heat efficiency conversion through the arrangement of the air baffle plate, higher heat exchange rate, capability of saving about 40 percent of fuel and high practicability.

Description

Fire-proof wall for boiler combustion chamber

Technical Field

The utility model relates to a civil boiler's high-efficient heat accumulation formula combustion technology, concretely relates to boiler combustion chamber keeps off hot wall.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy; the main parts of the boiler, such as a hearth, a drum, a burner, a water wall, a superheater, an economizer, an air preheater, a framework, a furnace wall and the like, form a core part for producing steam, and the core part is called as a boiler body. The two most main parts in the boiler body are a hearth and a boiler barrel; the hearth is also called a combustion chamber and is a space for fuel combustion; the design of the furnace chamber needs to fully consider the characteristics of the used fuel, and each boiler should burn the originally designed fuel as much as possible. Most of the existing boilers are fixed combustion chambers, fuel is supplied from the outside, the fuel is combusted in the combustion chambers to heat the boilers to form steam, and in the heating of the boilers, flue gas generated after the combustion of different combustion chambers can carry a large amount of heat in the process of exhausting, so that the flue gas is discharged and is relatively wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler combustion chamber keeps off hot wall solves the produced heat of ordinary stove combustion chamber and can carry away a large amount of heats, is unfavorable for the problem of raw materials saving.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a boiler combustion chamber keeps off hot wall, includes wall body and gas baffle, the wall body has minimum three layer construction to constitute, and the inlayer is the flame retardant coating, secondly is insulating layer, outer supporting layer for playing the supporting role, and three layer construction closely links to each other and constitutes the combustion chamber, and the wall body afterbody is provided with out the tobacco pipe, and the flame retardant coating below is provided with the convection tube, goes out the tobacco pipe front portion and is provided with the gas baffle.

Further, the wall body is arranged to be arched at the top, the two sides of the wall body are arranged to be vertical, and the tail of the wall body is arranged to be arched.

Furthermore, the convection tubes are arranged in a shape matched with the arch shape of the wall body after entering the wall body and reaching the combustion chamber, and the convection tubes are tightly connected and arranged into a plurality of tubes.

Furthermore, the whole air baffle is arched, and the part close to the wall body is in a shape matched with the wall body.

Furthermore, the convection tubes are arranged in a single way, and the arch shape is folded and tiled on the top of the wall body.

Furthermore, a door is connected to the outside of the wall body in a rotating manner.

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

compared with the prior art, the device has the advantages of simple structure, higher heat efficiency conversion through the arrangement of the air baffle plate, higher heat exchange rate, capability of saving about 40 percent of fuel and high practicability.

Drawings

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

Fig. 2 is a side view of the structure of the present invention.

In the figure, 1-fire-resistant layer, 2-heat-insulating layer, 3-supporting layer, 4-air baffle, 5-smoke outlet pipe, 6-convection pipe and 7-door.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

the boiler combustion chamber fire-blocking wall comprises a wall body and a gas-blocking plate 4, wherein the wall body is composed of a minimum three-layer structure, the actual requirement is met according to the specific layer number, the three layers are needed at least, the innermost layer is a flame-retardant layer 1 and is mainly made of a flame-retardant material, and the wall body structure is prevented from being damaged in the combustion process. And the second is a heat insulation layer 2, and the heat insulation layer 2 completely insulates all heat generated by combustion in the combustion chamber, so that heat is prevented from being dissipated from other places and being lost. The outer layer is a supporting layer 3 which plays a supporting role, the supporting role is set for other layers above the outer layer, and the three-layer structure is tightly connected to form a combustion chamber. The tail part of the wall body is provided with a smoke outlet pipe 5 for discharging and treating combustion waste gas, a convection pipe 6 is arranged below the fire-resistant layer 1, the convection pipe is filled with water and becomes steam through heating of the combustion chamber to be conveyed out, the front part of the smoke outlet pipe 5 is provided with an air baffle plate 4, the air baffle plate 4 firstly stops heat energy in the combustion chamber, so that the heat energy or smoke gas can not be directly discharged from the smoke outlet pipe 5, the heat energy in the combustion chamber is increased, and the consumption of fuel is reduced.

Example 2:

on the basis of the above embodiment, in this embodiment, for the convenience of combustion, the wall body is set as the arch at the top, and both sides are set as the vertical type, and the tail is set as the arch.

Example 3:

on the basis of the above embodiment, in the present embodiment, in order to better utilize heat energy, the convection pipe 6 is set to a shape matched with the arch shape of the wall after entering the wall and reaching the combustion chamber, and the convection pipe 6 is tightly connected and set to be multiple.

Example 4:

on the basis of the above embodiment, in this embodiment, in order to improve the residence time of the heat energy in the combustion chamber, the whole gas baffle 4 is set to be arched, the portion near the wall is set to be in a shape matched with the wall, which is equivalent to that a reverse cover is arranged in front of the smoke outlet pipe 5 to cover the smoke outlet pipe 5, because in the combustion process, the smoke can carry a large amount of heat energy, if there is no shielding object in the front, a part of the heat energy after combustion can be directly discharged from the smoke outlet pipe 5 together with the smoke, and after the gas baffle 4 is arranged in an inverted manner, the heat energy of the smoke can be firstly turned into one in the gas baffle 4 and then can overflow from the edge of the gas baffle 4, so that the residence time of the heat energy in the combustion chamber is more, and the heat exchange rate is higher.

Example 5:

on the basis of the above embodiments, in this embodiment, in order to obtain steam with higher heat, the convection pipe 6 may be arranged in a single piece, and the arch-shaped folding is flatly laid on the top of the wall, so that more heat exchange can be performed in one pipe, and of course, the specific selection may be performed according to the actual needs.

Example 6:

on the basis of the above embodiments, in the present embodiment, a door 7 is rotatably installed outside the wall body.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a boiler combustion chamber keeps off hot wall which characterized in that: including wall body and gas baffle (4), the wall body comprises minimum three layer construction, and the inlayer is flame retardant coating (1), secondly is insulating layer (2), outer supporting layer (3) for playing the supporting role, and three layer construction closely links to each other and constitutes the combustion chamber, and the wall body afterbody is provided with out tobacco pipe (5), and flame retardant coating (1) below is provided with convection tube (6), goes out tobacco pipe (5) front portion and is provided with gas baffle (4).

2. The boiler furnace firewall according to claim 1, characterized in that: the wall body sets up to the top and sets up to the arch, and both sides set up to vertical type, and the afterbody sets up to the arch.

3. The boiler furnace firewall according to claim 1, characterized in that: the convection tubes (6) enter the wall body and reach the combustion chamber, and then are arranged into a shape matched with the arch shape of the wall body, and the convection tubes (6) are tightly connected and are arranged into a plurality of tubes.

4. The boiler furnace firewall according to claim 1, characterized in that: the whole air baffle (4) is arched, and the part close to the wall body is in a shape matched with the wall body.

5. The boiler furnace firewall according to claim 1, characterized in that: the convection pipe (6) is arranged in a single way, and is folded in an arch shape and laid on the top of the wall body.

6. The boiler furnace firewall according to claim 1, characterized in that: a door (7) is connected outside the wall body.

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