CN210662848U

CN210662848U - Heat accumulating type heating furnace burner

Info

Publication number: CN210662848U
Application number: CN201920798663.0U
Authority: CN
Inventors: 周杨
Original assignee: JINGMEN SOLID THERMAL ENERGY TECHNIQUE CO Ltd
Current assignee: JINGMEN SOLID THERMAL ENERGY TECHNIQUE CO Ltd
Priority date: 2019-05-30
Filing date: 2019-05-30
Publication date: 2020-06-02
Anticipated expiration: 2029-05-30

Abstract

The utility model discloses a heat accumulating type heating furnace nozzle, including nozzle shell, interior casing and air feed coil pipe, nozzle shell's inside is provided with interior casing, and the inside of interior casing is provided with interior sleeve pipe, is provided with the intermediate layer cavity between interior casing and the interior sleeve pipe, and evenly twine on the lateral wall of interior casing simultaneously has the air feed coil pipe, nozzle shell top has the box of admitting air through the induction pipe fixed stay, and bolted mounting is passed through at the top of the box of admitting air has sealed lid, and gas pipe and cold air pipe are installed side by side at the top of sealed lid, the input fixed connection of induction box's output through induction pipe and air feed coil pipe. The utility model discloses drive turbine blade when gas and cold air are injected into and rotate, make gas and air intensive mixing, improve the combustion efficiency of natural gas, and fuel saving, the mist of gas and cold air can effectively carry out the heat transfer cooling to the nozzle when the coil pipe is being sent gas, prolongs the life reduction and the maintenance cost of nozzle.

Description

Heat accumulating type heating furnace burner

Technical Field

The utility model relates to a heating furnace technical field specifically is a heat accumulation formula heating furnace nozzle.

Background

The regenerative heating furnace burner is a burner commonly used in the metallurgical industry, has an extremely important function in a heating furnace combustion system, and in the existing various heating furnace burners, air and coal gas are combined into a whole, while a burner block and the burner are indeed separated, so that the defects exist universally:

1. the cooling protection device of the traditional burner is characterized in that a large amount of air is blown into the burner through an oxygen supply pipeline by a high-power air blower, so that the purpose of cooling the burner is achieved, the cooling protection device is adopted, the waste of power resources is caused, and a large amount of noise pollution is generated when the air blower works;

2. when the fuel gas is injected into the burner, the temperature difference between the temperature in the burner and the fuel gas is large, so that the fuel consumption is high;

3. when the burner ignites and burns, the gas outlet is single, so that the gas inside the burner is not uniformly distributed, the temperature difference occurs in different areas in the burner, and the service life of the burner is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat accumulation formula heating furnace nozzle, blow in a large amount of air in to the nozzle through the oxygen supply line that proposes in solving above-mentioned background art, thereby reach nozzle refrigerated purpose, adopt such cooling protection device, the waste of electric power resource has been caused, and the air-blower during operation can produce a large amount of noise pollution, the gas export is single, make the inside gas distribution of nozzle inhomogeneous, the gas is when pouring into the nozzle into, because the temperature in the nozzle is big with the difference in temperature of gas, lead to the more problem of fuel consumption.

In order to achieve the above object, the utility model provides a following technical scheme: a regenerative heating furnace burner comprises a burner shell, an inner shell and an air supply coil pipe, wherein a spray pipe is installed at one end of the burner shell through a first connecting flange, an ignition gun is installed at the other end of the burner shell through a second connecting flange, the inner shell is arranged inside the burner shell, an inner sleeve is arranged inside the inner shell, an interlayer cavity is arranged between the inner shell and the inner sleeve, the air supply coil pipe is uniformly wound on the outer side wall of the inner shell, an air inlet box is fixedly supported at one end, close to the ignition gun, of the top of the burner shell through the air supply pipe, a sealing cover is installed at the top of the air inlet box through bolts, a gas pipe and a cold air pipe are installed at the top of the sealing cover in parallel, a first flange and a second flange are respectively arranged at the input ends of the gas pipe and the cold air pipe, and the output end, the output of air feed coil pipe is provided with first branch pipe and second branch pipe side by side, installs first solenoid valve and second solenoid valve on first branch pipe and the second branch pipe respectively, the output of first branch pipe and second branch pipe extends to the inside of intermediate layer cavity respectively and first gas injection branch pipe of fixedly connected with and second gas injection branch pipe respectively, is provided with first gas injection hole and second gas injection hole on first gas injection branch pipe and the second gas injection branch pipe respectively.

Preferably, a cross bar is fixed inside the air inlet box, and a turbine blade is installed inside the air inlet box at the bottom of the cross bar through a bearing.

Preferably, the first gas injection branch pipe and the second gas injection branch pipe are both in a U-shaped pipe structure, and the first gas injection branch pipe and the second gas injection branch pipe are arranged in a staggered mode.

Preferably, the first gas injection branch pipe and the second gas injection branch pipe are laid along the length direction of the sandwich chamber, and the first gas injection branch pipe and the second gas injection branch pipe are arranged in the sandwich chamber in an annular mode.

Preferably, the side wall of the inner sleeve is uniformly provided with spray holes, the spray holes correspond to the first gas injection holes and the second gas injection holes one to one, and the first gas injection holes and the second gas injection holes form a gas injection structure through the spray holes.

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

(1) according to the regenerative heating furnace burner, the gas pipe and the cold air pipe are arranged on the sealing cover at the top of the gas inlet box in parallel, so that gas and cold air are injected simultaneously, and the turbine blades are driven to rotate when the gas and the cold air are injected, so that the gas and the air are fully mixed, the combustion efficiency of the gas is improved, fuel is saved, the mixed gas of the gas and the cold air can effectively exchange heat and cool the burner when passing through the gas supply coil pipe, the service life of the burner is prolonged, the maintenance cost is reduced, an air blower is not needed, and the noise pollution is reduced;

(2) according to the regenerative heating furnace burner, when the mixed gas of the fuel gas and the cold air passes through the turbine blades, the flow velocity of the mixed gas can be accelerated, the fluidity of the cooling gas is improved, the temperature of the mixed gas is increased while heat exchange and cooling are carried out, the temperature difference between the mixed gas and the inside of the burner is reduced, and the heating consumption of the fuel is reduced;

(3) this regenerative heating furnace nozzle, through set up first gas injection branch pipe and the second gas injection branch pipe that interlocks each other in the inside of intermediate layer cavity, set up first gas injection hole and second gas injection hole on first gas injection branch pipe and the second gas injection branch pipe respectively, make evenly set up the orifice one-to-one that has on first gas injection hole and second gas injection hole and the interior sheathed tube lateral wall, make the inside of the even injection nozzle of gas, guarantee that the nozzle is inside to be heated evenly, set up the solenoid valve on first gas injection branch pipe and second gas injection branch pipe simultaneously, can the flow of controller gas.

Drawings

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

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a schematic view of the unfolding structure of the inner shell of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the inner shell of the present invention.

In the figure: 1. an ignition gun; 2. an air intake box; 201. an air supply pipe; 202. a cross bar; 203. a bearing; 204. a turbine blade; 3. a sealing cover; 4. a gas pipe; 401. a first flange plate; 5. a cold air pipe; 501. a second flange plate; 6. a burner housing; 601. a first connecting flange; 602. a second connecting flange; 7. an inner housing; 701. an interlayer chamber; 8. an air supply coil pipe; 801. a first branch pipe; 8011. a first solenoid valve; 8012. a first gas injection branch pipe; 8013. a first gas injection hole; 802. a second branch pipe; 8021. a second solenoid valve; 8022. a second gas injection branch pipe; 8023. a second gas injection hole; 9. a nozzle; 10. an inner sleeve; 1001. and (6) spraying the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a regenerative heating furnace burner comprises a burner shell 6, an inner shell 7 and an air supply coil 8, wherein one end of the burner shell 6 is provided with a spray pipe 9 through a first connecting flange 601, the other end of the burner shell 6 is provided with an ignition gun 1 through a second connecting flange 602, the inner shell 7 is arranged inside the burner shell 6, an inner sleeve 10 is arranged inside the inner shell 7, and an interlayer cavity 701 is arranged between the inner shell 7 and the inner sleeve 10;

the side wall of the inner sleeve 10 is uniformly provided with spray holes 1001, the spray holes 1001 correspond to the first gas injection holes 8013 and the second gas injection holes 8023 one by one, and the first gas injection holes 8013 and the second gas injection holes 8023 form a gas injection structure through the spray holes 1001, and when mixed gas passes through the first gas injection holes 8013 and the second gas injection holes 8023 of the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022, the mixed gas is injected into the inner sleeve 10 through the spray holes 1001, so that the uniform gas injection effect is ensured;

meanwhile, the outer side wall of the inner shell 7 is uniformly wound with an air supply coil 8, one end of the top of the burner shell 6, which is close to the ignition gun 1, is fixedly supported with an air inlet box 2 through an air supply pipe 201, the top of the air inlet box 2 is provided with a sealing cover 3 through a bolt, the top of the sealing cover 3 is provided with a gas pipe 4 and a cold air pipe 5 in parallel, the input ends of the gas pipe 4 and the cold air pipe 5 are respectively provided with a first flange 401 and a second flange 501, and the output end of the air inlet box 2 is fixedly connected with the input end of the air supply coil 8 through the air supply;

a cross bar 202 is fixed inside the air inlet box 2, a turbine blade 204 is installed inside the air inlet box 2 at the bottom of the cross bar 202 through a bearing 203, gas and air are simultaneously injected into the air inlet box 2 through a gas pipe 4 and a cold air pipe 5, and mixed gas drives the turbine blade 204 to rotate through the bearing 203 when passing through the turbine blade 204, so that the gas and the air are fully mixed, meanwhile, the flow rate of the mixed gas can be accelerated, and the fluidity of cooling gas is improved;

a first branch pipe 801 and a second branch pipe 802 are arranged at the output end of the gas supply coil 8 in parallel, a first electromagnetic valve 8011 and a second electromagnetic valve 8021 are respectively installed on the first branch pipe 801 and the second branch pipe 802, the output ends of the first branch pipe 801 and the second branch pipe 802 respectively extend to the interior of the interlayer cavity 701 and are respectively and fixedly connected with a first gas injection branch pipe 8012 and a second gas injection branch pipe 8022, and a first gas injection hole 8013 and a second gas injection hole 8023 are respectively arranged on the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022;

the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022 both have a "U" pipe structure, and the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022 are arranged in a staggered manner, and the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022 arranged in a staggered manner ensure uniform gas injection, and at the same time, when the first branch pipe 801 and the second branch pipe 802 are closed, the uniformity of gas injection is not affected;

the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022 are laid along the length direction of the sandwich chamber 701, the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022 are annularly arranged in the sandwich chamber 701, and the first gas injection branch pipe 8012 and the second gas injection branch pipe 8022 are uniformly arranged in the sandwich chamber 701, so that the uniformity of gas injection is further ensured, and the uniformity of the internal temperature of the burner is ensured.

The working principle is as follows: before use, the gas pipe 4 is connected with an external natural gas pipeline through the first flange 401, the cold air pipe 5 is connected with an external gas supply pipeline through the second flange 501, during operation, gas and air are simultaneously injected into the gas inlet box 2 through the gas pipe 4 and the cold air pipe 5, the mixed gas drives the turbine blades 204 to rotate when passing through the turbine blades 204, so that the gas and the air are fully mixed, meanwhile, the flow rate of the mixed gas can be accelerated, the fluidity of cooling gas is improved, and the temperature of the mixed gas is increased during heat exchange and cooling, the mixed gas with the increased temperature is injected into the inner sleeve 10 under the action of the jet holes 1001 through the gas supply coil 8, the first branch pipe 801, the second branch pipe 802, the first gas injection branch pipe 8012, the second gas injection branch pipe 8022, the first gas injection hole 8013 and the second gas injection hole 8023, and the combustion effect is realized through the ignition gun 1, in the combustion process, the opening and closing of the first branch pipe 801 and the second branch pipe 802 can be controlled through the first electromagnetic valve 8011 and the second electromagnetic valve 8021 as required, and the flow rate of the fuel gas can be controlled.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a regenerative heating furnace nozzle, includes nozzle shell (6), interior casing (7) and air feed coil pipe (8), its characterized in that: nozzle (9) are installed through first flange (601) to the one end of nozzle shell (6), and burning torch (1) is installed through second flange (602) to the other end of nozzle shell (6), and the inside of nozzle shell (6) is provided with interior casing (7), and the inside of interior casing (7) is provided with interior sleeve pipe (10), is provided with intermediate layer cavity (701) between interior casing (7) and interior sleeve pipe (10), and evenly twine on the lateral wall of interior casing (7) simultaneously and have air feed coil pipe (8), the one end setting that nozzle shell (6) top is close to burning torch (1) has air inlet box (2) through air feed pipe (201) fixed stay, and sealed lid (3) are installed through the bolt in the top of air inlet box (2), and gas pipe (4) and cold air pipe (5) are installed side by side to the top of sealed lid (3), and the input of gas pipe (4) and cold air pipe (5) is provided with first ring flange (401) and second ring The gas injection device comprises a flange plate (501), the output end of the gas inlet box (2) is fixedly connected with the input end of a gas feed coil (8) through a gas feed pipe (201), the output end of the gas feed coil (8) is provided with a first branch pipe (801) and a second branch pipe (802) in parallel, the first branch pipe (801) and the second branch pipe (802) are respectively provided with a first electromagnetic valve (8011) and a second electromagnetic valve (8021), the output ends of the first branch pipe (801) and the second branch pipe (802) respectively extend to the interior of the interlayer cavity (701) and are respectively fixedly connected with a first gas injection branch pipe (8012) and a second gas injection branch pipe (8022), and the first gas injection hole (8013) and the second gas injection hole (8023) are respectively arranged on the first gas injection branch pipe (8012) and the second gas injection branch pipe (8022).

2. A regenerative heating furnace burner according to claim 1, wherein: a cross bar (202) is fixed inside the air inlet box (2), and a turbine blade (204) is installed inside the air inlet box (2) at the bottom of the cross bar (202) through a bearing (203).

3. A regenerative heating furnace burner according to claim 1, wherein: the first gas injection branch pipe (8012) and the second gas injection branch pipe (8022) are both in a U-shaped pipe structure, and the first gas injection branch pipe (8012) and the second gas injection branch pipe (8022) are arranged in a staggered manner.

4. A regenerative heating furnace burner according to claim 3, wherein: the first gas injection branch pipe (8012) and the second gas injection branch pipe (8022) are laid along the length direction of the sandwich chamber (701), and the first gas injection branch pipe (8012) and the second gas injection branch pipe (8022) are annularly arranged inside the sandwich chamber (701).

5. A regenerative heating furnace burner according to claim 1, wherein: the side wall of the inner sleeve (10) is uniformly provided with spray holes (1001), the spray holes (1001) correspond to the first gas injection hole (8013) and the second gas injection hole (8023) in a one-to-one mode, and the first gas injection hole (8013) and the second gas injection hole (8023) form a gas injection structure through the spray holes (1001).