Uniform air supply system for air flue of heating furnace

Abstract

The utility model relates to a heating furnace air duct uniform air supply system which comprises a feeding part used for being connected with a heating furnace burner, the burner further comprises a heat storage part and a heat insulation part connected with the heat storage part, the heat storage part and the heat insulation part are correspondingly provided with a through vent hole, a fuel gas through hole and an ignition through hole, and the feeding part is connected with a fuel gas pipeline. The gas pipeline is communicated with the gas through holes of the heat storage part and the heat insulation part; the material supply part is connected with an ignition pipeline, the ignition pipeline is communicated with ignition through holes of the heat storage part and the heat insulation part, the material supply part is provided with two air inlet chambers, the two air inlet chambers are symmetrical front and back relative to the combustor, the air inlet chambers are communicated with ventilation holes of the heat storage part and the heat insulation part, air separation devices are arranged in the air inlet chambers, and a plurality of sets of ventilation pipelines are formed by the air separation devices. The multiple sets of ventilation pipelines are arranged in the length direction of the combustor at equal intervals. Air is supplied to the heating furnace through the ventilation holes of the heat storage part and the heat insulation part, the feeding part is provided with an air inlet communicated with the air inlet chamber, and air entering through the air inlet is evenly distributed through the air separation device.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating furnace air supply technical field especially relates to a kind of heating furnace air duct uniform air supply system. BACKGROUND

[0002] Heating furnace refers to in metallurgical industry, material or workpiece (generally metal) is heated to the equipment (industrial furnace) of rolling into forging temperature, when using industrial heating furnace, need to be blown to interior by air duct, traditional air supply system often uses elbow, when air passes through elbow area, vortex is easily generated, and then the air flow velocity that reaches supply air position is not uniform, wind force produces serious drift, and then influence furnace fire.

[0003] Especially for some heating furnaces using multiple air ducts, when the air flow difference of several air ducts is large, Venturi effect generates negative pressure, thereby causing the thermal power in furnace to appear tempering situation, seriously affect heating effect in furnace body. UTILITY MODEL CONTENT

[0004] Therefore, the purpose of the utility model is to provide a kind of heating furnace air duct uniform air supply system that can prevent air drift in furnace body and keep air flow uniform in air duct.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is a kind of heating furnace air duct uniform air supply system, including the feeding part for being connected with heating furnace burner, burner includes heat storage part and heat insulation part connected with heat storage part, heat storage part and heat insulation part correspond to set through ventilation hole, gas passage hole and ignition hole;

[0006] Feeding part connects gas pipeline, and gas pipeline is communicated with gas passage hole of heat storage part and heat insulation part;Feeding part connects ignition pipeline, and ignition pipeline is communicated with ignition hole of heat storage part and heat insulation part;

[0007] The feeding part is provided with two air inlet chambers, and two air inlet chambers are symmetric about burner front and back, and air inlet chamber is communicated with ventilation hole of heat storage part and heat insulation part;

[0008] Air separation device is arranged in the air inlet chamber, and the air separation device forms several groups of ventilation pipeline, and several groups of ventilation pipeline are arranged along left-right direction equally;Heating furnace is supplied with air through ventilation hole of heat storage part and heat insulation part;

[0009] The feeding part is provided with air inlet, which is communicated with air inlet chamber.

[0010] The beneficial effects of the above technical scheme are: the double air ducts are arranged on the two sides of the gas pipeline and the ignition pipeline, the ignition gun in the ignition pipeline is placed to extend into the furnace to ignite the gas, the wind power of the double air ducts can make the ignited flame flow under the wrapping of the wind power, preventing the internal fire of the furnace body from flowing, the air baffle device can divide the air ducts equally to ensure the uniform distribution of the wind power in the air ducts, the double air ducts are closed and separated, can be operated independently, and do not interfere with each other, and the uniform wind power blowing can avoid the pressure difference and the phenomenon of backfire, so that the wind power blowing in the whole furnace body is uniform and stable, and the stability and safety of the heating furnace are improved.

[0011] Further, the air baffle device comprises a top plate, a support and a plurality of groups of air baffle plates, a plurality of threaded holes are formed in the edge of the top plate, threaded screws and nuts corresponding to the threaded holes are arranged to fix the top plate on the feeding part, the support is fixed on one side of the top plate close to the feeding part, a plurality of groups of air baffle plates are fixed on the support at intervals, and the support can be inserted into the air inlet chamber of the feeding part.

[0012] Beneficial effects: the air baffle device replaces the conventional elbow pipe to supply air to the furnace, which can reduce the occurrence of vortex and avoid wind power self-loss.

[0013] Further, a handle is arranged on the side of the top plate away from the feeding part.

[0014] Beneficial effects: the air baffle device is convenient to disassemble.

[0015] Further, the support is a U-shaped frame, the end of the U-shaped frame is fixed on the top plate, the air baffle plate is an L-shaped plate, the opening of the L-shaped plate faces the inside of the heating furnace, one end of the L-shaped plate is fixed on the bottom of the U-shaped frame, and the other end of the L-shaped plate is fixed on one side of the U-shaped frame.

[0016] Beneficial effects: the manufacturing is simple, the air inlet can be transferred to the side wall of the feeding part to avoid the occupied space of the gas pipeline and the ignition pipeline at the end of the feeding part.

[0017] Further, the width of the air baffle plate is consistent with the width of the air inlet chamber, the two sides of the plurality of groups of L-shaped plates are sequentially decreased to uniformly divide the length and width of the support, so as to form an L-shaped ventilation pipeline with consistent width.

[0018] Beneficial effects: the air baffle plate can form a relatively tight air passage to prevent the wind power from flowing over the edge of the air baffle plate on the support, causing mixed flow and self-loss of the wind power, and further causing uneven air supply.

[0019] Further, the air inlet is arranged on the side wall of the feeding part corresponding to the wide side of the support, and the air inlet is located on the side where the air baffle plate is connected to the support.

[0020] Beneficial effects: the air inlet provides an air source inlet into the furnace body.

[0021] Further, the air inlet is a rectangular opening, and the air inlet can cover the wide sides of the two groups of supports, so that the air inlet communicates with all the ventilation ducts.

[0022] Beneficial effects: further ensure uniform airflow in the air duct. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic view of the present utility model;

[0024] Figure 2 is Figure 1 a bottom view;

[0025] Figure 3 is a structural schematic view of the air isolation device;

[0026] In the figure: 1-burner, 2-air isolation device, 11-feeding part, 12-heat storage part, 13-heat insulation part, 21-top plate, 22-support, 23-air isolation plate, 24-handle, 101-air inlet chamber, 102-air inlet, 111-gas pipeline, 112-ignition pipeline, 201-ventilation duct, 202-threaded hole, 501-ventilation hole, 511-gas through hole, 512-ignition through hole. DETAILED DESCRIPTION

[0027] The present utility model is further described in detail in combination with the drawings and specific embodiments.

[0028] As Figures 1-3 shown, the present utility model relates to a heating furnace air duct uniform air supply system, which comprises a feeding part 11 connected with a heating furnace burner 1, the burner 1 comprises a heat storage part 12 and a heat insulation part 13 connected with the heat storage part 12, the heat storage part 12 and the heat insulation part 13 are correspondingly provided with a ventilation hole 501, a gas through hole 511 and an ignition through hole 512, the feeding part 11 is connected with a gas pipeline 111, and the gas pipeline 111 is in communication with the gas through hole 511 of the heat storage part 12 and the heat insulation part 13; the feeding part 11 is connected with an ignition pipeline 112, and the ignition pipeline 112 is in communication with the ignition through hole 512 of the heat storage part 12 and the heat insulation part 13, the feeding part 11 is provided with two air inlet chambers 101, the two air inlet chambers 101 are symmetrical about the front and back of the burner 1, the gas through hole 511 is provided with four, the gas through hole 511 and the ignition through hole 512 are arranged in the left and right directions; and the ventilation hole 501 is provided with two, in the front and back direction, the gas through hole 511 and the ignition through hole 512 are located between the front ventilation hole 501 and the rear ventilation hole 501.

[0029] In this embodiment, the air inlet chamber 101 is in communication with the ventilation holes 501 of the heat storage part 12 and the heat insulation part 13, and the air baffle device 2 is arranged in the air inlet chamber 101, and the air baffle device 2 forms a plurality of groups of ventilation pipes 201, and the plurality of groups of ventilation pipes 201 are arranged in the left-right direction in equal parts; air is supplied to the heating furnace through the ventilation holes 501 of the heat storage part 12 and the heat insulation part 13, and the air inlet 102 in communication with the air inlet chamber 101 is arranged on the feeding part 11, and the external air source first flows through the air baffle device 2 through the air inlet 102, and the air baffle plate 23 of the air baffle device 2 uniformly divides the air flow into the ventilation pipes 201, and the air flow continues to pass through the ventilation holes 501 of the heat storage part 12 and the heat insulation part 13 and enters the heating furnace.

[0030] In this embodiment, the air baffle device 2 includes a top plate 21, a support 22 and a plurality of groups of air baffle plates 23, a plurality of threaded holes 202 are arranged at the edge of the top plate 21, and the top plate 21 is fixed on the feeding part 11 by corresponding threaded screws and nuts, a through hole is arranged on the inner wall of the feeding part 11, and the screws are sequentially threaded through the through hole of the inner wall of the feeding part 11 and the threaded holes 202 of the top plate 21 and are screwed with the nuts, a handle 24 is arranged on the side of the top plate 21 away from the feeding part 11, which facilitates disassembly of the air baffle device 2 during maintenance, the support 22 is fixed on the side of the top plate 21 close to the feeding part 11, a plurality of groups of air baffle plates 23 are fixed on the support 22, the plurality of groups of air baffle plates 23 are arranged along the width direction of the support 22, and the support 22 as a whole can be inserted into the air inlet chamber 101 of the feeding part 11, and the air baffle device 2 replaces the conventional elbow pipe to supply air to the furnace, which can reduce the occurrence of vortex and avoid air loss.

[0031] Specifically, the support 22 is a U-shaped frame, which is relatively simple to manufacture, the end of the U-shaped frame is fixed on the top plate 21, the air baffle plate 23 is an L-shaped plate, the opening of the L-shaped plate faces the inside of the heating furnace, the air inlet 102 can be shifted to the side wall of the feeding part 11, and the occupied space of the gas pipeline 111 and the ignition pipeline 112 at the end of the feeding part 11 is avoided, one end of the L-shaped plate is fixed on the bottom of the U-shaped frame, the other end of the L-shaped plate is fixed on one side of the U-shaped frame, the width of the air baffle plate 23 is consistent with the width of the air inlet chamber 101, which ensures that the air baffle plate 23 can separate a relatively tight air passage, prevents the air from flowing through the edge of the air baffle plate 23 on the support 22, and causes the air to mix and lose, and the two side edges of the plurality of groups of L-shaped plates are sequentially decreased to uniformly divide the length and width of the support 22, so as to form L-shaped ventilation pipes 201 with consistent width and ensure that the air flowing into the heat storage part 12 and the heat insulation part 13 is uniform.

[0032] In the embodiment, the air inlet 102 is arranged on the sidewall of the feeding part 11 corresponding to the wide edge of the support 22, and provides an air source inlet into the furnace body, so that the external air source can enter the heating furnace through the air inlet 102, and the air inlet 102 is located on the side where the air baffle 23 is connected with the support 22, the air inlet 102 is a rectangular opening, and the air inlet 102 can cover the wide edges of the two groups of supports 22, so that the air inlet 102 is communicated with all the ventilation pipes 201, and the uniform distribution of the air flow is ensured when the air flow initially enters the heating furnace, and the uniform air supply effect in the heating furnace is further ensured.

[0033] In use, the feeding part 11 is located outside the heating furnace, the heat insulation part 13 is located inside the heating furnace, the ignition gun sequentially passes through the ignition pipeline 112 of the feeding part 11, the ignition through hole 512 of the heat storage part 12 and the ignition through hole 512 of the heat insulation part 13 and extends into the heating furnace; the gas sequentially passes through the gas pipeline 111 of the feeding part 11, the gas through hole 511 of the heat storage part 12 and the gas through hole 511 of the heat insulation part 13 and enters the heating furnace; and the external air source sequentially passes through the air inlet 102, the ventilation pipe 201 formed by the air baffle device 2, the ventilation hole 501 of the heat storage part 12 and the ventilation hole 501 of the heat insulation part 13 and enters the heating furnace.

[0034] The heating furnace air duct uniform air supply system has the following advantages: first, the ventilation pipe 201 formed by the air baffle device 2 can uniformly distribute the air source entering the air inlet 102, so that the air flow uniformly entering the furnace is formed in the ventilation holes 501 of the heat storage part 12 and the heat insulation part 13; second, the ventilation holes 501 entering the heating furnace are arranged in two groups, the gas entering the heating furnace and the ignition gun are arranged between the two groups of ventilation holes 501, the ignition gun ignites the gas, the wind force can advance in the furnace from the ignited fire force wrapped from top to bottom, the fire force is concentrated, the fire force deflection does not occur, the heating efficiency of the heating furnace is improved; third, the two groups of ventilation paths simultaneously supply air and the wind force is uniform, there is no wind force pressure difference, the phenomenon of fire transfer and backfire is avoided, and the service life of the entire burner 1 is improved.

[0035] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A heating furnace air duct uniform air supply system, characterized in that, The application relates to a heating furnace, which comprises a feeding part (11) connected with a heating furnace burner (1), the burner (1) comprises a heat storage part (12) and an insulation part (13) connected with the heat storage part (12), and the heat storage part (12) and the insulation part (13) correspondingly have through ventilation holes (501), gas holes (511) and ignition holes (512); The feeding part (11) is connected with a gas pipeline (111), and the gas pipeline (111) is communicated with the gas holes (511) of the heat storage part (12) and the insulation part (13); the feeding part (11) is connected with an ignition pipeline (112), and the ignition pipeline (112) is communicated with the ignition holes (512) of the heat storage part (12) and the insulation part (13); The feeding part (11) is provided with two air inlet chambers (101), the two air inlet chambers (101) are symmetrical about the front and back of the burner (1), the air inlet chamber (101) is communicated with the ventilation holes (501) of the heat storage part (12) and the insulation part (13); The air inlet chamber (101) is provided with an air isolation device (2), the air isolation device (2) forms a plurality of groups of ventilation pipelines (201), and the ventilation pipelines (201) are arranged in the left-right direction in equal parts; air is supplied to the heating furnace through the ventilation holes (501) of the heat storage part (12) and the insulation part (13); The feeding part (11) is provided with an air inlet (102) communicated with the air inlet chamber (101).

2. The uniform air supply system for the air flue of a heating furnace according to claim 1, characterized in that, The air isolation device (2) comprises a top plate (21), a support (22) and a plurality of groups of air isolation plates (23), a plurality of threaded holes (202) are formed in the edge of the top plate (21), threaded screws and nuts corresponding to the threaded holes (202) are arranged, the top plate (21) is fixed on the feeding part (11), the support (22) is fixed on one side of the top plate (21) close to the feeding part (11), a plurality of groups of air isolation plates (23) are fixed on the support (22) at intervals, and the support (22) can be inserted into the air inlet chamber (101) of the feeding part (11).

3. The uniform air supply system for the air flue of a heating furnace according to claim 2, characterized in that, A handle (24) is arranged on the side of the top plate (21) away from the feeding part (11).

4. The uniform air supply system for the air flue of a heating furnace according to claim 2, characterized in that, The support (22) is a U-shaped frame, the end of the U-shaped frame is fixed on the top plate (21), the air isolation plate (23) is an L-shaped plate, the opening of the L-shaped plate faces the inside of the heating furnace, one end of the L-shaped plate is fixed on the bottom of the U-shaped frame, and the other end of the L-shaped plate is fixed on one side of the U-shaped frame.

5. The uniform air supply system for the air flue of a heating furnace according to claim 4, characterized in that, The width of the air isolation plate (23) is consistent with the width of the air inlet chamber (101), the two side edges of the plurality of groups of L-shaped plates are sequentially decreased, the long side and the wide side of the support (22) are evenly divided, and the L-shaped ventilation pipeline (201) with the consistent width is formed.

6. The uniform air supply system for the air flue of a heating furnace according to claim 4, characterized in that, The air inlet (102) is arranged on the side wall of the feeding part (11) corresponding to the wide side of the support (22), and the air inlet (102) is located on the side, where the air isolation plate (23) is connected with the support (22).

7. The uniform air supply system for the air flue of a heating furnace according to claim 6, characterized in that, The air inlet (102) is a rectangular opening, and the air inlet (102) can cover the wide sides of the two groups of supports (22), so that the air inlet (102) is communicated with all the ventilation pipelines (201).

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