WO2018006405A1

WO2018006405A1 - Air admission device for boiler furnace

Info

Publication number: WO2018006405A1
Application number: PCT/CN2016/089387
Authority: WO
Inventors: 吴鹏
Original assignee: 吴鹏
Priority date: 2016-07-08
Filing date: 2016-07-08
Publication date: 2018-01-11

Abstract

An air admission device for a boiler furnace comprises a furnace (1). A partition (10) is disposed at an inner lower portion of the furnace (1). Multiple corrugated protrusions (11) are arranged at the partition (10). An air hole (110) is arranged at a side surface of the protrusion (11). A first one-way air admission valve (111) is disposed inside the air hole (110). A cylinder (12) is disposed between the bottom of the furnace (1) and the partition (10). A piston (120) is disposed at a free end of the cylinder (12). A side surface of the piston (120) is provided with an annular pad (121) fitting an inner wall of the furnace (1). A second one-way air admission valve (13) is disposed at the bottom of the furnace (1). When there is a need to admit air, the cylinder (12) is activated to drive the piston (120) to move upwards, and the second one-way air admission valve (13) opens to admit air. The cylinder (12) then drives the piston (120) to move downwards to force the admitted air from the side surface of the piston (120) to a space between the piston (120) and the partition (10). Afterward the cylinder (12) drives the piston (120) to move upwards again, and the first one-way air admission valve (111) opens to admit air to the bottom of the fuel.

Description

Boiler combustion chamber intake device

Technical field

The present invention relates to the field of boiler technology, and more particularly to a boiler combustion chamber intake device.

Background technique

The boiler is an energy conversion device. The energy input to the boiler is chemical energy, electric energy, etc. in the fuel. The boiler outputs steam, high temperature water or organic heat carrier with a certain heat energy; the fuel used in the boiler is mostly coal, gas and electricity. Wood, wood, etc. When using coal, wood, etc. as raw materials, the boiler combustion chamber must ensure sufficient air intake to ensure sufficient combustion. However, the existing air intake device is not integrated with the combustion chamber, requiring additional connection and increasing cost. At the same time, the assembly complexity is increased, and it is difficult to effectively inject air into the bottom of the combustion product.

technical problem

The technical problem to be solved by the present invention is to provide a boiler combustion chamber air intake device which is simple in structure, low in cost, and can effectively inhale the bottom of the combustion product, in view of the above-mentioned drawbacks of the prior art.

Technical solution

The technical solution adopted by the present invention to solve the technical problem thereof is:

Constructing a boiler combustion chamber air intake device, comprising a combustion chamber; wherein a partition is disposed below the combustion chamber, the partition plate is provided with a plurality of wave-shaped protrusions, and the convex side surface is provided with air holes a first one-way intake valve is disposed in the air hole; a cylinder is disposed between the bottom of the combustion chamber and the partition plate, and a movable end of the cylinder is provided with a piston, and the piston side surface is disposed with An annular gasket that fits the inner wall of the combustion chamber; a second one-way intake valve is disposed at the bottom of the combustion chamber.

In the boiler combustion chamber air intake device of the present invention, the annular gasket is provided with at least two layers on the piston side surface; and the piston side surface is provided with a mounting groove that cooperates with the annular gasket.

The boiler combustion chamber air intake device of the present invention, wherein the bottom surface of the combustion chamber is detachably connected to the side wall thereof.

The boiler combustion chamber air intake device of the present invention, wherein a smoke exhaust hole is arranged above the side of the combustion chamber; and a smoke exhaust pipe communicating with the smoke exhaust hole; Outlet valve.

Beneficial effect

The invention has the beneficial effects that when the intake air is required, the starting cylinder drives the piston to move upward, the second one-way intake valve opens the intake air, and the rear cylinder drives the piston to move downward to squeeze the incoming gas from the piston side surface into the piston and the partition. In the space between the plates, the rear cylinder again drives the piston to move upwards. The first one-way intake valve is opened, and the air intake at the bottom of the combustion object is integrated, which reduces the assembly trouble and ensures the air intake effect; the overall structure is simple. ,low cost.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the prior art, the present invention will be further described in conjunction with the accompanying drawings and embodiments. For ordinary technicians, other drawings can be obtained based on these drawings without any creative work:

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view showing the structure of a boiler combustion chamber intake device in accordance with a preferred embodiment of the present invention.

Embodiments of the invention

The present invention will be described in detail with reference to the embodiments of the present invention. Not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any inventive effort are within the scope of the present invention.

As shown in FIG. 1 , the boiler combustion chamber intake device of the preferred embodiment of the present invention includes a combustion chamber 1 , and a partition 10 is disposed below the interior of the combustion chamber 1 . The partition 10 is provided with a plurality of wave-shaped protrusions 11 and convex. The first side surface is provided with a gas hole 110, and the first one-way intake valve 111 is disposed in the air hole 110; a cylinder 12 is disposed between the bottom of the combustion chamber 1 and the partition plate 10, and the piston 120 is disposed at the movable end of the cylinder 12, and the piston 120 side The surface is provided with an annular gasket 121 that cooperates with the inner wall of the combustion chamber 1; the bottom of the combustion chamber 1 is provided with a second one-way intake valve 13; when intake is required, the starting cylinder 12 drives the piston 120 to move upward, and the second one-way intake The valve 13 opens the intake air, and the rear cylinder 12 drives the piston 120 to move downward to squeeze the incoming gas from the side surface of the piston 120 into the space between the piston 120 and the partition 10, and the rear cylinder 12 again drives the piston 120 to move upward, first The one-way intake valve 111 is opened, and the air intake at the bottom of the combustion product is integrated, which reduces the assembly trouble and ensures the air intake effect; the overall structure is simple and the cost is low.

As shown in FIG. 1, the annular spacer 121 is provided with at least two layers on the side surface of the piston 120; the side surface of the piston 120 is provided with a mounting groove (not shown) that cooperates with the annular spacer 121, and a ring of different layers is provided. The gasket 121 controls the amount of intake air for a single time to facilitate adjustment for different combustion products.

As shown in Figure 1, the bottom surface of the combustion chamber 1 is detachably connected to its side wall for easy installation and maintenance.

As shown in FIG. 1 , a smoke exhaust hole 14 is disposed above the side of the combustion chamber 1 , and a smoke exhaust pipe 140 communicating with the smoke exhaust hole 14 is further disposed; a unidirectional air outlet valve 141 is disposed in the smoke exhaust hole 14 to facilitate the intake of air. At the same time, the gas in the combustion chamber 1 is used to exhaust the flue gas

It is to be understood that those skilled in the art will be able to make modifications and changes in accordance with the above description, and all such modifications and variations are intended to be included within the scope of the appended claims.

Claims

A boiler combustion chamber air intake device includes a combustion chamber; and a partition plate is disposed under the combustion chamber, and the partition plate is provided with a plurality of wave-shaped protrusions, and the convex side surface is provided with a first one-way intake valve is disposed in the air hole; a cylinder is disposed between the bottom of the combustion chamber and the partition, a piston is disposed on the movable end of the cylinder, and a side surface of the piston is disposed An annular gasket mating the inner wall of the combustion chamber; a second one-way intake valve is disposed at the bottom of the combustion chamber.
A boiler combustor intake device according to claim 1, wherein said annular gasket is provided with at least two layers on said piston side surface; said piston side surface is provided with said annular gasket Install the slot.
The boiler combustor intake device according to claim 1, wherein the bottom surface of the combustion chamber is detachably connected to a side wall thereof.
The boiler combustion chamber air intake device according to claim 1, wherein a smoke exhausting hole is disposed above the side of the combustion chamber, and further includes a smoke exhausting pipe communicating with the exhausting smoke hole; A one-way air outlet valve is provided.