CN212227096U - Positive pressure combustion type combustion furnace door structure - Google Patents
Positive pressure combustion type combustion furnace door structure Download PDFInfo
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- CN212227096U CN212227096U CN202021283586.4U CN202021283586U CN212227096U CN 212227096 U CN212227096 U CN 212227096U CN 202021283586 U CN202021283586 U CN 202021283586U CN 212227096 U CN212227096 U CN 212227096U
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Abstract
The utility model relates to a malleation burning type fires burning furnace gate structure has solved the sealed difficult problem that malleation fires burning furnace gate to be applicable to the furnace gate and frequently open or close. The sealing structure comprises a furnace door, a rectangular furnace door frame and an air supply system, wherein the furnace door moves in parallel relative to the rectangular furnace door frame, a hollow air channel is arranged inside the rectangular furnace door frame, the air channel is connected with the air supply system, the pressure in the air channel is greater than the pressure in a hearth, and a circle of ventilation hole belt is arranged on one side of the rectangular furnace door frame relative to the furnace door. The utility model discloses simple structure, leakproofness are good, are applicable to the malleation that the furnace gate frequently opened or closed and fire burning furnace, and the operation is reliable.
Description
Technical Field
The utility model relates to a malleation burning type fires burning furnace gate structure.
Background
The positive pressure combustion furnace has the advantages that the combustion speed of the combustion furnace is high, the temperature of the hearth is high, the combustion temperature is high, the temperature is controllable, energy can be effectively saved, the emission of harmful gas is reduced, the environment-friendly index is reached, and the positive pressure combustion furnace is limited by the sealing of a furnace door. The existing positive pressure combustion furnace door has two opening and closing modes, one is to move horizontally and open and close relatively, and the other is to hinge on one side. The fuel is mainly put in from the furnace top relative to the furnace door which is horizontally moved to open and close, the sealing of the furnace door is mainly water sealing, but the sealing form is only suitable for low-temperature combustion furnaces, most industrial furnaces with the combustion temperature higher than 1200 ℃ adopt the furnace door with one side hinged to open and close, the furnace door and the furnace door frame are tightly pressed by a heat-resistant pad and then locked, the heat-resistant pad needs to be frequently replaced, the sealing quality is not guaranteed, and the furnace door cannot be frequently opened and closed, and the like.
SUMMERY OF THE UTILITY MODEL
Based on above weak point, the utility model discloses a malleation burning type fires burning furnace gate structure has solved the difficult problem of sealing of malleation burning furnace gate such as waste incinerator, gas producer, cremation machine, industrial furnace to be applicable to the furnace gate and frequently open or close.
The utility model discloses the technical scheme who adopts as follows: a positive pressure combustion type combustion furnace door structure comprises a furnace door, a rectangular furnace door frame and an air supply system, wherein the furnace door moves in parallel relative to the rectangular furnace door frame, a hollow air channel is arranged inside the rectangular furnace door frame and is connected with the air supply system, the pressure in the air channel is larger than the pressure in a hearth, and a circle of ventilation hole belt is arranged on one side, opposite to the furnace door, of the rectangular furnace door frame.
The utility model discloses still have following technical characteristic:
1. two ventilation hole belts are arranged on each side of the furnace door frame corresponding to the parallel moving direction of the furnace door, and the two ventilation hole belts are parallel to each other.
2. A raised partition is arranged between the two parallel vent holes, and a groove matched with the partition is arranged on the inner side of the furnace door.
3. The furnace door frames on the two sides in the direction of the parallel movement of the furnace door are respectively connected with an air supply system.
The utility model has the advantages of: the structure is simple, the sealing performance is good, the positive pressure combustion furnace is suitable for frequently opening or closing the furnace door, and the operation is reliable. The temperature of the hearth can be quickly improved, and simultaneously, along with the rise of the temperature of the hearth, the combustion speed is accelerated, and the emission of harmful gases is reduced, so that the requirements of energy conservation and environmental protection are met.
Drawings
Fig. 1 is a transverse section view of a door frame and door matching structure of a positive pressure combustion type combustion furnace.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic structural view of a rectangular furnace door frame.
Fig. 4 is a schematic view a-a of fig. 3.
Fig. 5 is a transverse sectional view of a door frame of the oven at one side corresponding to a direction of parallel movement of the door.
Detailed Description
The invention is further described by way of example in the following description with reference to the accompanying drawings:
example 1
As shown in fig. 1-5, a positive pressure combustion type combustion furnace door structure comprises a door 1, a rectangular furnace door frame 2 and an air supply system, wherein the door 1 moves in parallel relative to the rectangular furnace door frame 2, the rectangular furnace door frame 2 is formed by four square pipes poured by heat-resistant cast iron in an end-to-end connection manner, a hollow air duct 4 is arranged inside the rectangular furnace door frame 2, high temperature cannot be generated under the action of cold air, the service life is prolonged, and the operation is guaranteed; a circle of vent hole belt 3 is arranged on one side of the rectangular furnace door frame 2, which is opposite to the furnace door 1; two ventilation hole belts 3 are arranged on each side of the furnace door frame corresponding to the furnace door 1 in the parallel moving direction, the two ventilation hole belts are parallel to each other, and the distance between the centers of the holes of the two ventilation hole belts 3 is 16 mm. A raised partition 6 is arranged between the two parallel vent hole belts 3, and a groove 7 which is matched with the partition is arranged on the inner side of the furnace door, and the width of the groove is 25mm, and the depth of the groove is 30 mm. The furnace door frames on the two sides in the direction of the parallel movement of the furnace door are respectively connected with an air supply system, and the pressure in the air duct 4 is greater than the pressure in the furnace chamber.
The principle of the present invention will be further explained with reference to the accompanying drawings: as shown in figures 1-2, because the furnace door is upper and lower parallel motion relative to the furnace door frame, the existing fixed seal such as silica gel pad, asbestos board, metal hard seal pad and the like can not reach the sealing effect under the working condition of the positive pressure of the furnace chamber, therefore the utility model discloses a sealing of the furnace door under the working condition of the positive pressure combustion furnace adopts double-chamber air pressure seal, P1Is the air pressure of the seal chamber, P2Is the pressure of the pressure-maintaining chamber, PFurnace with a heat exchangerIs the flue gas pressure in the furnace, PDoor with a door panelIs the pressure in the furnace door frame air chamber, as long as P is ensured1＞PFurnace with a heat exchangerThe sealing of the furnace door can be realized, P1The pressure loss of (2) is in two directions, one is towards the inside of the furnace, the other is towards the outside of the furnace, the pressure P in the furnace is1＞PFurnace with a heat exchangerThe smoke in the furnace can not leak out of the furnace, if the smoke in the furnace leaks out of the furnace, the smoke in the furnace must be bent for four times, and the structure increases the local pressure loss of the smoke in the furnace which is discharged out, thereby ensuring the positive pressure combustion of the combustion furnace. The utility model realizes the air pressure sealing by utilizing the principle of pressure difference, namely the pressure in the air chamber of the furnace door frame is larger than the pressure in the furnace chamber, PDoor with a door panel＞PFurnace with a heat exchangerThe air pressure sealing can be realized by utilizing the principle of pressure difference. The pressure in the furnace door frame gas chamber is approximate to the air supply pressure (neglecting the pressure loss along the air supply system), the air supply pressure is above 2000Pa, and the pressure of the combustion furnace hearth is between-100 Pa and +100 Pa.
Claims (4)
1. The utility model provides a malleation burning furnace gate structure that fires, includes furnace gate, rectangle stove door frame and air feed system, the furnace gate relative rectangle stove door frame parallel translation which characterized in that: the rectangular furnace door frame is internally provided with a hollow air channel, the air channel is connected with an air supply system, the pressure in the air channel is greater than the pressure in a hearth, and one side of the rectangular furnace door frame, which is opposite to a furnace door, is provided with a circle of ventilation hole belt.
2. The furnace door structure of a positive pressure combustion type combustion furnace as claimed in claim 1, wherein: two ventilation hole belts are arranged on each side of the furnace door frame corresponding to the parallel moving direction of the furnace door, and the two ventilation hole belts are parallel to each other.
3. The furnace door structure of a positive pressure combustion type combustion furnace according to claim 2, wherein: a raised partition is arranged between the two parallel vent holes, and a groove matched with the partition is arranged on the inner side of the furnace door.
4. A furnace door structure for a positive pressure combustion type combustion furnace according to any one of claims 1 to 3, wherein: the furnace door frames on the two sides in the direction of the parallel movement of the furnace door are respectively connected with an air supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283586.4U CN212227096U (en) | 2020-07-03 | 2020-07-03 | Positive pressure combustion type combustion furnace door structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283586.4U CN212227096U (en) | 2020-07-03 | 2020-07-03 | Positive pressure combustion type combustion furnace door structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212227096U true CN212227096U (en) | 2020-12-25 |
Family
ID=73911807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021283586.4U Active CN212227096U (en) | 2020-07-03 | 2020-07-03 | Positive pressure combustion type combustion furnace door structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212227096U (en) |
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2020
- 2020-07-03 CN CN202021283586.4U patent/CN212227096U/en active Active
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