CN218291039U

CN218291039U - Gas heating furnace

Info

Publication number: CN218291039U
Application number: CN202222522662.8U
Authority: CN
Inventors: 彭敦林; 林虎
Original assignee: Anji Pengda Steel Pipe Co ltd
Current assignee: Anji Pengda Steel Pipe Co ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2023-01-13
Anticipated expiration: 2032-09-23

Abstract

The utility model discloses a gas heating furnace relates to steel pipe processing equipment field. The utility model discloses a top and below at steel pipe transfer passage all are equipped with the burner tip that sets up along direction of delivery, and the burner tip that sets up through upper and lower both sides heats the steel pipe, makes the steel pipe be heated more evenly. And steel pipe transfer passage sets up to two-layerly, and the first layer has the burner tip that sets up from top to bottom to make the steel pipe directly receive flame direct heating, and the second floor steel pipe can be heated by hot-air, and the design of two-layer transport passageway can be directed against the steel pipe of different heating temperature demands, and the energy is utilized to the efficient.

Description

Gas heating furnace

Technical Field

The utility model discloses a gas heating furnace relates to steel pipe processing equipment field.

Background

The gas furnace is widely applied in the process of processing steel pipes, for example, in an annealing process, the steel pipes need to be heated to a certain temperature and kept warm for a period of time, and then cooled, so that the mechanical property of the steel pipes is improved, and the residual stress is reduced.

In the prior art, for example, CN208562470U discloses an adjustable high-efficiency steel tube annealing furnace, which specifically discloses the following scheme: the adjustable high-efficiency steel pipe annealing furnace comprises a heating furnace area and a cooling furnace area, wherein the heating furnace area is provided with a steel pipe conveying roller channel consisting of a plurality of roller shaft connecting rollers, and the same roller shaft is connected with a plurality of rollers; the heating furnace zone is internally provided with a gas transmitter which is connected to the top wall of the heating furnace zone through an electric control telescopic rod, the electric control telescopic rod is electrically connected with a controller outside the adjustable high-efficiency steel tube annealing furnace, the upper end of the electric control telescopic rod is fixedly connected with the top wall of the heating furnace zone, the lower end of the electric control telescopic rod is fixedly connected with the gas transmitter, the gas transmitter is provided with a plurality of gas shunts, the lower ends of the gas shunts are provided with a plurality of combustion nozzles, the combustion nozzles are all provided with igniters, the gas shunts are all provided with gas control valves, and the gas control valves are electrically connected with the external controller of the adjustable high-efficiency steel tube annealing furnace; the heating furnace district right side is equipped with the cooling furnace district, and cooling furnace district upper end is equipped with coolant tank, and coolant tank is located outside the cooling furnace district, and coolant tank drenches the sprayer through the interior ware that drenches of raceway connection cooling furnace district, drenches and is equipped with a plurality of shower nozzles that drench on the sprayer, is equipped with the ascending header tank of opening in the cooling furnace district, and the header tank is located steel pipe conveying roller passageway below, and the header tank passes through the coolant tank of back flow connection cooling furnace district upper end, is equipped with the delivery pump on the back flow, still is equipped with a plurality of cooling cylinder in the cooling furnace district.

In the scheme, the steel pipe is driven to pass through the heating furnace zone through the steel pipe conveying roller channel, and the steel pipe is directly heated through flame spraying of the combustion nozzle. However, the burner nozzles are all arranged above the steel pipe conveying roller channel, so that the problem of uneven heating of the steel pipe exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the defects of the prior art are overcome and a gas heating furnace which heats a steel pipe by simultaneously spraying fire from top to bottom is provided, so that the steel pipe is heated uniformly.

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

the utility model discloses a gas heating furnace, it is equipped with steel pipe transfer passage, all is equipped with the burner tip that sets up along direction of delivery in steel pipe transfer passage's top and below, heats the steel pipe through the burner tip that upper and lower both sides set up, makes the steel pipe be heated more evenly.

In the gas heating furnace, if the steel pipe conveying channel only accommodates a single steel pipe to pass through, the left side and the right side of the steel pipe conveying channel can be provided with the combustion nozzles, so that the steel pipe is heated more uniformly. However, the steel pipe transfer passage is configured to accommodate a plurality of steel pipes, on the premise of high efficiency.

Specifically, the gas heating furnace is provided with a square sealed space for heat preservation, and a first opening and a second opening are formed at the front end and the rear end of the space respectively for the steel pipe to enter and exit. The steel pipe conveying channel extends from the first opening to the second opening. There are a plurality of pivots at steel pipe transfer passage along direction of delivery interval distribution, are provided with many chains in the steel pipe transfer passage, and the chain cover is in a plurality of pivots and set up along the straight line, all is provided with a plurality of sprockets that set up along the axial interval in every pivot and is used for connecting the chain. The steel pipe can be placed on two chains and is driven by the chains to advance. The combustion nozzle below the steel pipe conveying channel is arranged below the gap between the chain and the chain, so that flame sprayed by the combustion nozzle can directly act on the steel pipe, and heating is more efficient.

Further, the steel pipe transfer passage also can be transported in two layers, the first layer is the first layer transfer passage that above-mentioned chain formed promptly, the steel pipe receives flame direct heating, the last conveying mechanism who comprises pivot, chain, sprocket etc. of first layer transfer passage can be the same duplicate form the second floor transfer passage on the first layer transfer passage, the difference of second floor transfer passage and first layer transfer passage is that the steel pipe can be heated by the hot-air, here hot-air is the hot-air that forms after the first layer transfer passage flame of below heats the air. The design of two-layer transportation channel can be directed at the steel pipe of different heating temperature demands, and the energy is utilized to the efficient.

Further, the conveying directions of the first layer conveying channel and the second layer conveying channel can be the same direction or opposite directions. On the contrary, because the heating modes of the steel pipes on the two layers of the transportation channels are different, more steel pipes are required to meet different heating temperature requirements. Therefore, the transportation direction is opposite, which is more beneficial to distinguishing different steel pipes, and the space at the two ends can be fully utilized.

Has the advantages that: the utility model discloses a top and below at steel pipe transfer passage all are equipped with the burner tip that sets up along direction of delivery, and the burner tip that sets up through upper and lower both sides heats the steel pipe, makes the steel pipe be heated more evenly. And steel pipe transfer passage sets up to two-layerly, and the burner tip that the first layer set up from top to bottom can make the steel pipe directly receive flame direct heating, and second floor steel pipe can be heated by the hot-air, and the design of two-layer transport passage can be directed against the steel pipe of different heating temperature demands, and the energy is utilized to the efficient.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic front view of the present invention;

description of the reference numerals: burner tip 1, first opening 2, second opening 3, pivot 4, chain 5, sprocket 6, first layer transport corridor 7, second layer transport corridor 8, motor 9, first transmission shaft 10, second transmission shaft 11, third transmission shaft 12, first chain 13, second chain 14, main part 15.

Detailed Description

The invention is further described with reference to the drawings and the specific embodiments. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the invention described in the following description are generally only some embodiments, but not all embodiments of the invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by a person having ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a gas heating furnace is provided with a furnace body formed by enclosing square steel plates, a main body 15 with a frame structure is arranged inside, the square steel plates are welded and sealed by steel plates (not shown in the figure 2) above, below, on the left side and on the right side of the main body 15, and a first opening 2 and a second opening 3 are respectively formed at the front end and the rear end of the furnace body. A steel pipe conveyance passage extends from the first opening 2 to the second opening 3. The steel pipe conveying channel is provided with two layers of conveying channels.

The structure of two-layer transportation passageway is the same, has all contained a plurality of pivots 4 along direction of delivery interval distribution to and many chains 5, 5 covers of chain are on a plurality of pivots 4 and set up along the straight line, all are provided with a plurality of sprockets 6 that set up along the axial interval in every pivot 4 and are used for connecting chain 5. The steel tube can be placed on two chains 5 and driven by the chains 5 to advance.

And a plurality of rows of combustion nozzles 1 arranged along the conveying direction are distributed above and below the first-layer conveying channel 7. And the burner 1 is arranged towards the gap between the chain 5 and the chain 5, so that the flame sprayed from the burner 1 can directly act on the steel pipe. Meanwhile, after the flame heats the air, the steel pipe conveyed above the second layer of conveying channel 8 can be heated by the hot air. Therefore, the two layers of transportation channels are designed, so that heating is more uniform, and energy can be efficiently utilized for steel pipes with different heating temperature requirements.

In this embodiment, the chains 5 of the upper and lower transportation channels are driven by the same motor 9. Referring to fig. 3, it can be seen that a motor 9 is arranged at one end of the furnace body, a first transmission shaft 10 is arranged beside the motor 9, a second transmission shaft 11 is arranged between the first transmission shaft 10 and the rotating shaft 4 at the end part of the first layer conveying channel 7, a third transmission shaft 12 is arranged between the rotating shaft 4 at the end part of the first layer conveying channel 7 and the rotating shaft 4 at the end part of the second layer conveying channel 8, a first chain 13 is arranged between the motor 9 and the first transmission shaft 10, and a second chain 14 is arranged on the first transmission shaft 10, the second transmission shaft 11, the rotating shaft 4 at the end part of the first layer conveying channel 7, the third transmission shaft 12 and the rotating shaft 4 at the end part of the second layer conveying channel 8. The motor 9 rotates, the first chain 13 drives the first transmission shaft 10 to rotate, and the first transmission shaft 10 drives the second transmission shaft 11, the rotating shaft 4 at the end part of the first layer of transportation channel 7, the third transmission shaft 12 and the rotating shaft 4 at the end part of the second layer of transportation channel 8 to rotate through the second chain 14. The rotating shafts 4 at the end parts of the two layers of the transportation channels rotate in opposite directions. The conveying directions of the two layers of conveying channels are opposite. The opposite design is more favorable for distinguishing different steel pipes, and the space at the two ends can be fully utilized. The space here can be fully utilized, which means, for example: feeding equipment and cooling equipment can be arranged at both ends; the first transportation channel can be respectively butted with a first feeding device and first cooling equipment, a first type steel pipe is fed into the first transportation channel from the first opening 2 through the first feeding device in the previous process, and is heated by flame in the first transportation channel and then is conveyed to the first cooling equipment through the first transportation channel; the second layer of transportation channel 8 can be respectively butted with a second feeding device and a second cooling device, a second type steel pipe is fed into the second layer of transportation channel 8 from the previous working procedure through the second feeding device from the second opening 3, and the steel pipe is heated by air in the second layer of transportation channel 8 and then is conveyed to the second cooling device through the second layer of transportation channel 8.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims

1. A gas heating furnace is characterized in that: the device is provided with a steel pipe conveying channel, and combustion nozzles (1) arranged along the conveying direction are arranged above and below the steel pipe conveying channel;

the furnace body is provided with a first opening (2) and a second opening (3) which are respectively formed at the front end and the rear end of the furnace body, and the steel pipe conveying channel is communicated with the first opening (2) and the second opening (3).

2. A gas-fired heating furnace as claimed in claim 1, wherein: the steel pipe conveying channel is provided with a plurality of rotating shafts (4) at intervals along the conveying direction, a plurality of chains (5) are arranged in the steel pipe conveying channel, the chains (5) are sleeved on the rotating shafts (4) and are arranged along straight lines, and a plurality of chain wheels (6) arranged at intervals along the axial direction are arranged on each rotating shaft (4) and are used for connecting the chains (5).

3. A gas-fired heating furnace according to claim 2, characterized in that: the combustion nozzle (1) positioned below the steel pipe conveying channel is arranged below a gap between the chain (5) and the chain (5).

4. A gas fired heater according to claim 1, wherein: the steel pipe conveying channel comprises a first layer of conveying channel (7) and a second layer of conveying channel (8), the first layer of conveying channel (7) is arranged below the second layer of conveying channel (8), and conveying mechanisms are arranged in the first layer of conveying channel (7) and the second layer of conveying channel (8); conveying mechanism includes along conveying direction interval distribution's a plurality of pivot (4) and many chains (5), and chain (5) cover is on a plurality of pivots (4) and set up along the straight line, all is provided with a plurality of sprocket (6) that set up along the axial interval on every pivot (4) in order to be used for connecting chain (5).

5. The gas-fired heating furnace according to claim 4, wherein: the conveying direction of the conveying mechanism of the first layer conveying channel (7) is the same as the conveying direction of the conveying mechanism of the second layer conveying channel (8).

6. The gas-fired heating furnace according to claim 4, wherein: the conveying direction of the conveying mechanism of the first layer conveying channel (7) is opposite to the conveying direction of the conveying mechanism of the second layer conveying channel (8).

7. The gas-fired heating furnace according to claim 6, wherein: the furnace body one end has motor (9), there is first transmission shaft (10) beside motor (9), be provided with second transmission shaft (11) between first transmission shaft (10) and pivot (4) of first layer transport passageway (7) tip, be provided with third transmission shaft (12) between pivot (4) of first layer transport passageway (7) tip and pivot (4) of second layer transport passageway (8) tip, be equipped with first chain (13) between motor (9) and first transmission shaft (10), be equipped with second chain (14) on first transmission shaft (10), second transmission shaft (11), pivot (4) of first layer transport passageway (7) tip, third transmission shaft (12), pivot (4) of second layer transport passageway (8) tip, pivot (4) the direction of rotation of first transport passageway tip and pivot (4) the opposite direction of rotation of second layer transport passageway (8) tip.

8. A gas fired heater according to claim 1, wherein: the furnace body is formed by surrounding square steel plates, and a main body (15) with a frame type structure is arranged in the furnace body.