CN207880833U - Regenerative radiant tube burner - Google Patents

Abstract

The utility model discloses a kind of regenerative radiant tube burners, including：The heat accumulation type radiant tube of multiple parallel connections, each heat accumulation type radiant tube include the first air scoop and the second air scoop；First branch pipe, multiple first outlets that the first branch pipe has the first import and is respectively communicated with multiple first air scoops；Multiple second outlets that there is the second import and be respectively communicated with multiple second air scoops with the second branch pipe, the second branch pipe.Regenerative radiant tube burner according to the present utility model, by the heat accumulation type radiant tube that multiple parallel connections are arranged, it can make multiple heat accumulation type radiant tube common conduits, optimize regenerative radiant tube burner and air header pipeline arrangement, keep control system easy to operate, shorten duct length, reduces operation and maintenance cost, pipe-line system arrangement is more reasonable, and regenerative radiant tube burner is allow to be applied in large-scale engineering project.

Description

Regenerative radiant tube burner

Technical field

The utility model is related to petrochemical industry, the technical fields of metallurgy and power industry gas burner, more particularly, to one Kind regenerative radiant tube burner.

Background technology

In the related technology, the pipeline of regenerative radiant tube burner is complicated, and control system is cumbersome, and system operation is safeguarded It is of high cost, and it is susceptible to the high situation of local temperature, it is difficult to the type of furnace of large-scale yield.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model carries Go out a kind of regenerative radiant tube burner, prime number regenerative radiant tube burner can make control with the pipe-line system before and after optimizer System operatio processed is simple.

According to the regenerative radiant tube burner of the utility model embodiment, including：The heat accumulation type radiant tube of multiple parallel connections, Each heat accumulation type radiant tube includes the first air scoop and the second air scoop；First branch pipe, first branch pipe have the One import and the multiple first outlets being respectively communicated with multiple first air scoops；With the second branch pipe, the second branch pipe tool The multiple second outlets for having the second import and being respectively communicated with multiple second air scoops.

According to the regenerative radiant tube burner of the utility model embodiment, the heat accumulating type by the way that multiple parallel connections are arranged radiates Pipe, can make multiple heat accumulation type radiant tube common conduits, optimize regenerative radiant tube burner and air header pipeline cloth Mode is set, keeps control system easy to operate, shortens duct length, reduces operation and maintenance cost, pipe-line system is arranged more Adduction is managed, and regenerative radiant tube burner is allow to be applied in large-scale engineering project.

Some embodiments according to the present utility model, the heat accumulation type radiant tube include：First heat accumulation pipe, described first stores One end of heat pipe is connected to first air scoop, and the first Gas Pipe, first heat accumulation pipe are equipped in first heat accumulation pipe The first Gas Pipe of interior removing is partially filled with heat storage；Second heat accumulation pipe, one end of second heat accumulation pipe are empty with described second Gas port is connected to, and the second Gas Pipe is equipped in second heat accumulation pipe, the part of the second Gas Pipe is removed in second heat accumulation pipe Fill heat storage；Radiant tube, the radiant tube be located between first heat accumulation pipe and second heat accumulation pipe and respectively with institute It states the first heat accumulation pipe to be connected to second heat accumulation pipe, and the radiant tube and first Gas Pipe and second Gas Pipe Connection.

In some embodiments of the utility model, first Gas Pipe is located at the center of first heat accumulation pipe.

In some embodiments of the utility model, one end that first heat accumulation pipe is connect with the radiant tube is equipped with spray Injection device, the injection apparatus have the first blast tube, the first air duct and the second air duct, first combustion gas logical Road is connected to first Gas Pipe and the radiant tube, first air duct and second air duct with it is described First air scoop is connected to the radiant tube, and the distance between first air duct and first blast tube are less than institute State the distance between the second air duct and first blast tube.

It is described on first heat accumulation pipe to the direction of the radiant tube in some embodiments of the utility model First air duct and second air duct are tilted towards first blast tube.

In some embodiments of the utility model, the angle between first air duct and first blast tube Degree is α, and the α meets：25°≤α≤35°.

In some embodiments of the utility model, the angle between second air duct and first blast tube Degree is β, and the β meets：10°≤β≤15°.

In some embodiments of the utility model, first air duct and second air duct are multiple And it is spaced apart along the circumferential direction of first blast tube.

In some embodiments of the utility model, first heat accumulation pipe is with second heat accumulation pipe about the radiation The median plane of pipe is symmetrical.

Some embodiments according to the present utility model, further include air inlet lines and exhaust gas outlet pipe, first import and institute The second import is stated to be connected to the air inlet lines and the exhaust gas outlet pipe by four-way valve.

The additional aspect and advantage of the utility model will be set forth in part in the description, partly will be from following description In become apparent, or recognized by the practice of the utility model.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment Become apparent and is readily appreciated that, wherein：

Fig. 1 is the partial structurtes according to the heat accumulation type radiant tube of the regenerative radiant tube burner of the utility model embodiment Front view；

Fig. 2 is the partial structurtes according to the heat accumulation type radiant tube of the regenerative radiant tube burner of the utility model embodiment Side view；

Fig. 3 is the front view according to the heat accumulation type radiant tube of the regenerative radiant tube burner of the utility model embodiment；

Fig. 4 is the front view according to the regenerative radiant tube burner of the utility model embodiment；

Fig. 5 is the side view according to the regenerative radiant tube burner of the utility model embodiment.

Reference numeral：

Regenerative radiant tube burner 100,

Heat accumulation type radiant tube 1,

First heat accumulation pipe 11, the first air scoop 111, the first Gas Pipe 112,

Second heat accumulation pipe 12, the first air scoop 121, the second Gas Pipe 122,

Heat storage 13, radiant tube 14,

Injection apparatus 15, the first blast tube 151, the first air duct 152, the second air duct 153,

First branch pipe 2, the first import 21,

Second branch pipe 3, the second import 31.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " suitable The orientation or positional relationship of the instructions such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is orientation based on ... shown in the drawings Or position relationship, be merely for convenience of describing the present invention and simplifying the description, do not indicate or imply the indicated device or Element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the utility model System.In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more this feature. In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

Below with reference to Fig. 1-Fig. 5 descriptions according to the regenerative radiant tube burner 100 of the utility model embodiment.

As Figure 1-Figure 5, according to the regenerative radiant tube burner of the utility model embodiment 100, including：It is multiple simultaneously The heat accumulation type radiant tube 1 of connection, the first branch pipe 2 and the second branch pipe 3.

Specifically, each heat accumulation type radiant tube 1 includes the first air scoop 111 and the second air scoop 121, the first branch pipe 2 have second with the first import 21 and the multiple first outlets being respectively communicated with multiple first air scoops 111, the second branch pipe 3 Import 31 and the multiple second outlets being respectively communicated with multiple second air scoops 121.Multiple heat accumulation type radiant tubes 1 are in parallel, can be with Make 1 common conduit of multiple heat accumulation type radiant tubes, optimizes regenerative radiant tube burner 100 and air header pipeline arrangement side Formula shortens duct length, reduces cost, and pipe-line system arrangement is more reasonable.

For example, in Fig. 3-examples shown in fig. 5, regenerative radiant tube burner 100 includes two in left and right arrangement Heat accumulation type radiant tube 1, each heat accumulation type radiant tube 1 are formed as U-shaped and are disposed vertically, and two heat accumulation type radiant tubes 1 are arranged in parallel, First branch pipe 2 has the first import 21 and two first outlets, two first outlets respectively with two heat accumulation type radiant tubes 1 the One air scoop 111 be connected to, the second branch pipe 3 have the second import 31 and two second outlets, two second outlets respectively with two Second air scoop 121 of heat accumulation type radiant tube 1 is connected to.

According to the regenerative radiant tube burner 100 of the utility model embodiment, by the heat accumulating type that multiple parallel connections are arranged Radiant tube 1 can make 1 common conduit of multiple heat accumulation type radiant tubes, it is total with air to optimize regenerative radiant tube burner 100 Pipe pipeline arrangement, keeps control system easy to operate, shortens duct length, reduces operation and maintenance cost, pipeline system System arrangement is more reasonable, and regenerative radiant tube burner 100 is allow to be applied in large-scale engineering project.

In some embodiments of the utility model, as shown in Fig. 1, Fig. 3 and Fig. 5, heat accumulation type radiant tube 1 includes the first storage Heat pipe 11, the second heat accumulation pipe 12 and radiant tube 14.One end of first heat accumulation pipe 11 is connected to the first air scoop 111, the first accumulation of heat The first Gas Pipe 112 is equipped in pipe 11, the first Gas Pipe 112 is removed in the first heat accumulation pipe 11 is partially filled with heat storage 13, the One end of two heat accumulation pipes 12 is connected to the second air scoop 121, and the second Gas Pipe 122, the second accumulation of heat are equipped in the second heat accumulation pipe 12 The second Gas Pipe 122 is removed in pipe 12 is partially filled with heat storage 13, and radiant tube 14 is located at the first heat accumulation pipe 11 and the second accumulation of heat It is connected between pipe 12 and respectively with the first heat accumulation pipe 11 and the second heat accumulation pipe 12, and radiant tube 14 and the first Gas Pipe 112 and Two Gas Pipes 122 are connected to.

There is first Gas Pipe 112 fuel gas inlet and gas outlet, combustion gas to enter the first Gas Pipe 112 from fuel gas inlet It is interior, then entered in radiant tube 14 by the gas outlet of the first Gas Pipe 112, air passes through the first branch pipe 2 and the first air Mouth 111 enters in the first heat accumulation pipe 11, subsequently into radiant tube 14.Into in radiant tube 14 air and combustion gas fired It burns, the high-temperature flue gas after burning flows out through the heat storage 13 in the second heat accumulation pipe 12 from the second air scoop 121, and heat is stored in the In heat storage 13 in two heat accumulation pipes 12.

Further, as shown in figures 1 and 3, the first Gas Pipe 112 is located at the center of the first heat accumulation pipe 11.It is possible thereby to Simplify the structure of regenerative radiant tube burner 100.Second Gas Pipe 122 is located at the center of the second heat accumulation pipe 12.It is possible thereby to It is further simplified the structure of regenerative radiant tube burner 100.

In some embodiments of the utility model, as Figure 1-Figure 4, what the first heat accumulation pipe 11 was connect with radiant tube 14 One end is equipped with injection apparatus 15, and injection apparatus 15 has the first blast tube 151, the first air duct 152 and the second air logical Road 153, the first blast tube 151 are connected to the first Gas Pipe 112 and radiant tube 14, the first air duct 152 and the second air Channel 153 is connected to the first air scoop 111 and radiant tube 14, between the first air duct 152 and the first blast tube 151 Distance is less than the distance between the second air duct 153 and the first blast tube 151.As a result, spoke is flowed to from the first heat accumulation pipe 11 The air penetrated in pipe 14 is divided to two channels to enter in radiant tube 14, can be first logical with the first air into the combustion gas in radiant tube 14 Air in road 152 is mixed to form combustion with meagre oxygen, and Some gases continue flowing and are mixed into the air in the second air duct 153 Row fully burning.By burning step by step twice, combustion gas is sufficiently burned, and combustion gas twice is all oxygen debt burning, so burning fire Flame temperature there is no part it is excessively high, 14 wall temperature of radiant tube also can be relatively uniform, and the generation of NOx pass directly proportional to flame temperature System, so the reduction of flame temperature can substantially reduce the production quantity of NOx.

As Figure 1-Figure 4, one end that the second heat accumulation pipe 12 is connect with radiant tube 14 is equipped with injection apparatus 15, injection apparatus 15 have the first blast tube 151, the first air duct 152 and the second air duct 153, the first blast tube 151 and second Gas Pipe 122 is connected to radiant tube 14, the first air duct 152 and the second air duct 153 with the second air scoop 121 and spoke The connection of pipe 14 is penetrated, the distance between the first air duct 152 and the first blast tube 151 are less than the second air duct 153 and the The distance between one blast tube 151.Flowing to the air in radiant tube 14 from the second heat accumulation pipe 12 as a result, is divided to two channels to enter In radiant tube 14, oxygen deprivation combustion can be first mixed to form with the air in the first air duct 152 into the combustion gas in radiant tube 14 It burns, Some gases continue to flow to mix with the air in the second air duct 153 fully to be burnt.By firing step by step twice It burns, combustion gas is sufficiently burned, and combustion gas twice is all oxygen debt burning, so there is no excessively high, the spokes in part for combustion flame temperature Penetrating 14 wall temperature of pipe also can be relatively uniform, and the generation of NOx and flame temperature are proportional, so the reduction of flame temperature can be big The big production quantity for reducing NOx.

Further, as shown in Figure 1, being located at the injection apparatus 15 on the first heat accumulation pipe 11, in the first heat accumulation pipe 11 to spoke It penetrates on the direction of pipe 14, the first air duct 152 and the second air duct 153 are tilted towards the first blast tube 151.By This is convenient for air and the combustion gas mixing in the first air duct 152 and the second air duct 153 and burns.As shown in figure 3, being located at Injection apparatus 15 on second heat accumulation pipe 12, on the second heat accumulation pipe 12 to the direction of radiant tube 14,152 He of the first air duct Second air duct 153 is tilted towards the first blast tube 151.Thus it is convenient for the first air duct 152 and the second air logical Air in road 153 and combustion gas mixing are simultaneously burnt.

Further, the angle between the first air duct 152 and the first blast tube 151 is α, and α meets：25°≤α ≤35°.Thus air and the combustion gas mixing be convenient in the first air duct 152 are simultaneously burnt.Second air duct 153 and first Angle between blast tube 151 is β, and β meets：10°≤β≤15°.Thus be convenient for the second air duct 153 in air with Combustion gas mixing is simultaneously burnt.

In some embodiments of the utility model, as shown in Fig. 2, the first air duct 152 and the second air duct 153 It is multiple and is spaced apart along the circumferential direction of the first blast tube 151.Such as shown in Fig. 2, 152 He of the first air duct Second air duct 153 is four and is spaced apart along the circumferential direction of the first blast tube 151.It is possible thereby to increase air Flow, convenient for air and combustion gas mixing and burn.Wherein, the cross of 152 and second air duct 153 of each first air duct Section is circle, and the cross-sectional area of the second air duct 153 is more than the cross-sectional area of the first air duct 152, by This fully burns convenient for air with combustion gas.Certainly, the utility model is without being limited thereto, and the first air duct 152 and the second air are logical The cross section in road 153 may be formed as oblong etc..

In some embodiments of the utility model, as shown in figure 3, the first heat accumulation pipe 11 and the second heat accumulation pipe 12 are about spoke The median plane for penetrating pipe 14 is symmetrical.It is possible thereby to simplify the structure of heat accumulation type radiant tube 1, the production cycle is saved, reduces production cost.

In some embodiments of the utility model, regenerative radiant tube burner 100 further includes air inlet lines and exhaust gas Outlet pipe, the first import 21 are connected to by four-way valve with air inlet lines and exhaust gas outlet pipe with the second import 31.First Gas Pipe 112 With fuel gas inlet and gas outlet, combustion gas enters from fuel gas inlet in the first Gas Pipe 112, then passes through the first Gas Pipe 112 gas outlet enters in radiant tube 14, and air enters the from air inlet lines by the first branch pipe 2 and the first air scoop 111 In one heat accumulation pipe 11, subsequently into radiant tube 14.Into in radiant tube 14 air and combustion gas burn, the height after burning Warm flue gas flows out to the second branch pipe 3 through the heat storage 13 in the second heat accumulation pipe 12 from the second air scoop 121, then from the second import 31 flow to exhaust gas outlet pipe, and heat is stored in the heat storage 13 in the second heat accumulation pipe 12.

By commutating after a certain period of time, the second Gas Pipe 122 has fuel gas inlet and gas outlet, and combustion gas is from fuel gas inlet Into in the second Gas Pipe 122, then entered in radiant tube 14 by the gas outlet of the second Gas Pipe 122, air is from air Inlet pipe is entered by the second branch pipe 3 and the second air scoop 121 in the second heat accumulation pipe 12, subsequently into radiant tube 14.Into spoke The air and combustion gas penetrated in pipe 14 burn, and the high-temperature flue gas after burning is through the heat storage 13 in the first heat accumulation pipe 11 from One air scoop 111 flows out to the first branch pipe 2, then flows to exhaust gas outlet pipe from the first import 21, and heat is stored in the first heat accumulation pipe In heat storage 13 in 11.

A specific embodiment according to the present utility model, by taking two heat accumulation type radiant tubes 1 as an example, 300Nm3/h air is logical It crosses the first import 21 and enters the first branch pipe 2,1 sectional area of air honeycomb regenerator radiant tube is：0.0047m2；Following number is obtained through experiment According to：Left side heat accumulation type radiant tube 1 is 150Nm3/h, and right side heat accumulation type radiant tube 1 is 150Nm3/h, and left and right air is evenly distributed； Heat accumulation type radiant tube 1 average pressure in left side is 1200Pa, and heat accumulation type radiant tube 1 average pressure in right side is 1200Pa, and left and right is without pressure Difference；Air simultaneously passes through the air mixed firinor fuel burning that the first air duct 152 sprays into 40%, and it is empty that the second air duct 153 sprays into 60% Gas mixing is fired again, by experimental data as can be seen that burner combustion position is stablized.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that： Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (10)

1. a kind of regenerative radiant tube burner, which is characterized in that including：

The heat accumulation type radiant tube of multiple parallel connections, each heat accumulation type radiant tube include the first air scoop and the second air scoop；

First branch pipe, first branch pipe have the first import and be respectively communicated with multiple first air scoops multiple first Outlet；With

Second branch pipe, second branch pipe have the second import and be respectively communicated with multiple second air scoops multiple second Outlet.

2. regenerative radiant tube burner according to claim 1, which is characterized in that the heat accumulation type radiant tube includes：

First heat accumulation pipe, one end of first heat accumulation pipe are connected to first air scoop, are equipped in first heat accumulation pipe First Gas Pipe, first heat accumulation pipe the first Gas Pipe of interior removing are partially filled with heat storage；

Second heat accumulation pipe, one end of second heat accumulation pipe are connected to second air scoop, are equipped in second heat accumulation pipe Second Gas Pipe, second heat accumulation pipe the second Gas Pipe of interior removing are partially filled with heat storage；

Radiant tube, the radiant tube are located between first heat accumulation pipe and second heat accumulation pipe and are stored respectively with described first Heat pipe is connected to second heat accumulation pipe, and the radiant tube is connected to first Gas Pipe and second Gas Pipe.

3. regenerative radiant tube burner according to claim 2, which is characterized in that first Gas Pipe is located at described The center of first heat accumulation pipe.

4. regenerative radiant tube burner according to claim 2, which is characterized in that first heat accumulation pipe and the spoke The one end for penetrating pipe connection is equipped with injection apparatus, and the injection apparatus has the first blast tube, the first air duct and second empty Gas channel, first blast tube are connected to first Gas Pipe and the radiant tube, first air duct and institute It states the second air duct to be connected to first air scoop and the radiant tube, first air duct is fired with described first The distance between gas channel is less than the distance between second air duct and first blast tube.

5. regenerative radiant tube burner according to claim 4, which is characterized in that in first heat accumulation pipe to described On the direction of radiant tube, first air duct and second air duct are tilted towards first blast tube.

6. regenerative radiant tube burner according to claim 5, which is characterized in that first air duct with it is described Angle between first blast tube is α, and the α meets：25°≤α≤35°.

7. regenerative radiant tube burner according to claim 5, which is characterized in that second air duct with it is described Angle between first blast tube is β, and the β meets：10°≤β≤15°.

8. regenerative radiant tube burner according to claim 4, which is characterized in that first air duct and described Second air duct is multiple and is spaced apart along the circumferential direction of first blast tube.

9. according to the regenerative radiant tube burner described in any one of claim 2-8, which is characterized in that first accumulation of heat Pipe is symmetrical about the median plane of the radiant tube with second heat accumulation pipe.

10. regenerative radiant tube burner according to claim 1, which is characterized in that further include air inlet lines and exhaust gas Outlet pipe, first import are connected to by four-way valve with the air inlet lines and the exhaust gas outlet pipe with second import.