CN215637161U - High-radiation nanometer heat exchanger - Google Patents

Abstract

The utility model relates to the technical field of cold rolling, in particular to a high-radiation nanometer heat exchanger, which comprises a radiation tube, wherein a heat exchange frame is arranged inside the radiation tube, a limiting frame is fixedly arranged on the inner side wall of the radiation tube, a limiting sliding groove is formed in the surface of the limiting frame, an oxide layer is fixedly arranged on the surface of the outer side of the heat exchange frame, a limiting sliding block is fixedly arranged on the side surface of the heat exchange frame, the limiting sliding block is connected with the limiting sliding groove in a sliding manner, and a positioning screw hole is formed in the side surface of the limiting sliding block. Is beneficial to prolonging the service life of the radiant tube.

Description

High-radiation nanometer heat exchanger

Technical Field

The utility model relates to the technical field of cold rolling, in particular to a high-radiation nanometer heat exchanger.

Background

The cold rolling is formed by processing a hot rolled plate at normal temperature, although the steel plate is heated due to rolling in the processing process, the cold rolling is called as cold rolling, heating furnaces of a cold rolling continuous annealing unit and a hot galvanizing unit heat the strip steel by using high-temperature radiation pipes, coal gas is combusted in the radiation pipes to generate high-temperature flue gas, the heat of the high-temperature flue gas is transmitted to the outer wall of the radiation pipes through heat conduction by radiating the heat of the inner wall of the radiation pipes, and the heat of the outer wall of the radiation pipes is transmitted to the strip steel and the furnace wall through radiation heat exchange.

However, in the use process of the traditional heat exchanger, the temperature of the central area of the flame is higher due to the short length of the combustion flame, the heat transmitted to the inner wall of the radiant tube by the flue gas is reduced, the average flue gas temperature in the whole radiant tube is reduced, the generation of NOX is not favorably reduced, the local high temperature in the radiant tube is easy to generate, and the burning loss rate of the radiant tube is increased. In view of this, we propose a high-emissivity nano heat exchanger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-radiation nano heat exchanger to solve the problems that the conventional heat exchanger in the background art has a short combustion flame length, so that the temperature of the central area of the flame is high, the heat transmitted to the inner wall of a radiation tube by smoke is reduced, the average smoke temperature in the whole radiation tube is reduced, the generation of NOX is not reduced, the local high temperature in the radiation tube is easy to generate, and the burning loss rate of the radiation tube is increased.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a high radiation nanometer heat exchanger, includes the radiant tube, the inside of radiant tube is provided with the heat transfer frame, the inside wall fixed mounting of radiant tube has spacing, spacing spout has been seted up on spacing surface, the outside fixed surface of heat transfer frame is provided with the oxide layer, the side fixed mounting of heat transfer frame has spacing slider, spacing slider and spacing spout sliding connection, the location screw has been seted up to spacing slider's side, spacing threaded connection has the positioning screw bolt, the terminal surface contact of heat transfer frame in the inner wall surface of radiant tube, the fixed intercommunication of one end of radiant tube has the intake pipe, the fixed intercommunication of the other end of radiant tube has the outlet duct.

Preferably, one end of the positioning stud is fixedly connected with a knob block, and the positioning stud is matched with the positioning screw hole.

Through setting up like this, positioning stud can cooperate threaded connection in location screw for the heat transfer frame is convenient for install and is dismantled in the radiant tube.

Preferably, the heat exchange frame is a member made of ceramic, and the oxide layer is a nanoscale rare earth oxide layer member.

Through setting up like this for the heat exchanger frame has good infrared emissivity and good heat conductivity when high temperature.

Preferably, the cross section of the heat exchange frame is in a three-pointed star shape.

Through setting up like this, reached and made the flue gas can be at the purpose of the subregion circulation in the radiant tube.

Preferably, an assembly disc a is fixedly installed at one end of the air inlet pipe, an assembly disc b is fixedly installed at one end of the air outlet pipe, and assembly screw holes are formed in the surfaces of the assembly disc a and the assembly disc b.

Through setting up assembly dish a, assembly dish b and assembly screw, reached and to have carried out the pipeline switch-on with the radiant tube and use the purpose.

Preferably, the outer side surface of the radiant tube is fixedly connected with heat conducting fins at intervals, and the heat conducting fins are distributed on the outer side surface of the radiant tube at annular equal intervals.

Through setting up the conducting strip, reached the purpose that improves flue gas transmission radiant tube outer wall heat absorption capacity.

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

1. according to the utility model, the length of the combustion flame can be prolonged by utilizing the heat exchange frame, the temperature of the central area of the flame is reduced, the heat transmitted to the inner wall of the radiation tube by the flue gas is improved, namely the average smoke temperature in the whole radiation tube is improved, the peak clipping and valley filling are carried out on the temperature aspect, the generation of NOX is reduced, the smoke exhaust temperature of the radiation tube can be reduced, the heat of the flue gas is dispersedly and uniformly transmitted to the inner wall of the radiation tube by the heat exchange frame, the reduction of the burning loss rate of the radiation tube caused by the local high temperature of the inner wall of the radiation tube can be effectively prevented, and the service life of the radiation tube is prolonged.

2. According to the utility model, the limiting frame, the limiting sliding groove, the positioning stud, the limiting sliding block and the positioning screw hole are arranged, so that the heat exchange frame is convenient and simple to mount and dismount in the radiant tube, and the heat exchange frame is convenient to maintain or replace at a later stage.

Drawings

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

FIG. 2 is a schematic perspective view of a radiant tube according to the present invention;

fig. 3 is a schematic perspective view of the heat exchange rack of the present invention.

In the figure: 1. a radiant tube; 101. a limiting frame; 102. a limiting chute; 103. positioning the stud; 104. an air inlet pipe; 105. an air outlet pipe; 106. a heat conductive sheet; 2. a heat exchange rack; 201. a limiting slide block; 202. an oxide layer; 203. positioning the screw hole; 3. assembling a disc a; 4. disc b is assembled.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "back", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1-3, a technical solution provided by the present invention is:

a high-radiation nanometer heat exchanger comprises a radiant tube 1, a heat exchange frame 2 is arranged inside the radiant tube 1, a limiting frame 101 is fixedly installed on the inner side wall of the radiant tube 1, a limiting sliding groove 102 is formed in the surface of the limiting frame 101, an oxide layer 202 is fixedly arranged on the outer side surface of the heat exchange frame 2, a limiting sliding block 201 is fixedly installed on the side surface of the heat exchange frame 2, the limiting sliding block 201 is in sliding connection with the limiting sliding groove 102, a positioning screw hole 203 is formed in the side surface of the limiting sliding block 201, the limiting frame 101 is in threaded connection with a positioning stud 103, the end surface of the heat exchange frame 2 is in contact with the inner wall surface of the radiant tube 1, so that the heat of the heat exchange frame 2 can be transmitted to the inner wall of the radiant tube 1, one end of the radiant tube 1 is fixedly communicated with an air inlet pipe 104, the flue gas can enter the radiant tube 1 through the gas inlet pipe 104, the other end of the radiant tube 1 is fixedly communicated with the gas outlet pipe 105, and the flue gas in the radiant tube 1 is finally discharged through the gas outlet pipe 105.

As a preferred implementation manner in this embodiment, one end of the positioning stud 103 is fixedly connected with a knob block, the positioning stud 103 is adapted to the positioning screw hole 203, and the positioning stud 103 can be connected to the positioning screw hole 203 in a matching manner by a screw thread, so that the heat exchange rack 2 is convenient to mount and dismount in the radiation tube 1.

As a preferred implementation manner in this embodiment, as shown in fig. 3, the heat exchange frame 2 is a member made of ceramic, and the oxide layer 202 is a member made of nano-scale rare earth oxide, so that the heat exchange frame 2 has good infrared emissivity and good thermal conductivity at high temperature.

As a preferred embodiment in this embodiment, as shown in fig. 1, the cross-sectional shape of the heat exchange frame 2 is a three-pointed star, so as to achieve the purpose of enabling the flue gas to separately circulate in the radiation tube 1.

As a preferred embodiment in this embodiment, as shown in fig. 2, an assembly disc a3 is fixedly mounted at one end of the air inlet pipe 104, an assembly disc b4 is fixedly mounted at one end of the air outlet pipe 105, and assembly screw holes are respectively formed in the surfaces of the assembly disc a3 and the assembly disc b4, so that the purpose of connecting and using the radiant tube 1 is achieved.

As a preferred implementation manner in this embodiment, as shown in fig. 2, the heat conducting fins 106 are fixedly connected to the outer side surface of the radiant tube 1 at intervals, and the heat conducting fins 106 are distributed on the outer side surface of the radiant tube 1 at equal intervals in a ring shape, so as to achieve the purpose of increasing the heat absorption capacity of the outer wall of the flue gas transmission radiant tube 1.

The heat exchanger body of this embodiment is when using, the flue gas can get into in the radiant tube 1 through intake pipe 104, can prolong burning flame length through utilizing heat transfer frame 2, reduce the central region temperature of flame, it transmits for the 1 inner wall heat of radiant tube to improve the flue gas, improve the average smoke temperature in the whole radiant tube 1 promptly, the millet is mended in the aspect of the peak clipping in the temperature, thereby reduce NOX and generate, can reduce the exhaust gas temperature of radiant tube 1, the heat of flue gas passes through the distributed even transmission of heat transfer frame 2 to radiant tube 1 inner wall, can effectively prevent the local high temperature of radiant tube 1 inner wall.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. A high radiation nanometer heat exchanger body, includes radiant tube (1), its characterized in that: a heat exchange frame (2) is arranged in the radiation tube (1), a limiting frame (101) is fixedly arranged on the inner side wall of the radiation tube (1), the surface of the limiting frame (101) is provided with a limiting sliding groove (102), the outer side surface of the heat exchange frame (2) is fixedly provided with an oxide layer (202), a limiting slide block (201) is fixedly arranged on the side surface of the heat exchange frame (2), the limiting slide block (201) is connected with a limiting slide groove (102) in a sliding way, a positioning screw hole (203) is arranged on the side surface of the limiting slide block (201), the limiting frame (101) is in threaded connection with a positioning stud (103), the end surface of the heat exchange frame (2) is contacted with the inner wall surface of the radiant tube (1), one end of the radiant tube (1) is fixedly communicated with an air inlet tube (104), and the other end of the radiant tube (1) is fixedly communicated with an air outlet tube (105).

2. The high-emissivity nano heat exchanger body of claim 1, wherein: one end of the positioning stud (103) is fixedly connected with a knob block, and the positioning stud (103) is matched with the positioning screw hole (203).

3. The high-emissivity nano heat exchanger body of claim 1, wherein: the heat exchange frame (2) is a component made of ceramics, and the oxide layer (202) is a nanometer rare earth oxide layer component.

4. The high-emissivity nano heat exchanger body of claim 1, wherein: the cross section of the heat exchange frame (2) is in a three-fork star shape.

5. The high-emissivity nano heat exchanger body of claim 1, wherein: one end of the air inlet pipe (104) is fixedly provided with an assembly disc a (3), one end of the air outlet pipe (105) is fixedly provided with an assembly disc b (4), and assembly screw holes are formed in the surfaces of the assembly disc a (3) and the assembly disc b (4).

6. The high-emissivity nano heat exchanger body of claim 1, wherein: the heat-conducting fins (106) are fixedly connected to the outer side surface of the radiant tube (1) at intervals, and the heat-conducting fins (106) are distributed on the outer side surface of the radiant tube (1) in an annular shape at equal intervals.

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