CN219890139U

CN219890139U - Heat exchange assembly and 500KG elliptical gas crucible furnace

Info

Publication number: CN219890139U
Application number: CN202321099642.2U
Authority: CN
Inventors: 魏清明
Original assignee: Ningbo Xingzhanwang Energy Saving Technology Co ltd
Current assignee: Ningbo Xingzhanwang Energy Saving Technology Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-10-24
Anticipated expiration: 2033-05-06

Abstract

The utility model relates to the technical field of crucible furnace heat exchange, in particular to a heat exchange assembly and a 500KG elliptical gas crucible furnace, comprising: the heat exchanger comprises a heat exchanger shell, wherein a reversing box body is fixedly arranged in an inner cavity of the heat exchanger shell, and an air inlet cylinder and an exhaust cylinder are respectively and fixedly connected to the upper end and the lower end of one side of the reversing box body; a flue gas duct is arranged between the circular positioning plate and the gas partition plate; the side edges of the flow guide partition plates are provided with flow guide notches, the flow guide notches on the flow guide partition plates deflect along the same direction, and the deflection angle is gradually increased; the beneficial effects are as follows: through being provided with a plurality of equidistant water conservancy diversion baffles that distribute between circular locating plate and gas baffle, the water conservancy diversion incision on a plurality of water conservancy diversion baffles deflects along same direction, and deflection angle increases gradually, and combustion-supporting gas passes the water conservancy diversion baffle through the water conservancy diversion incision to can form the vortex, increase self flow path, improve with the heat transfer effect between the interior high temperature flue gas of flue gas pipe, with this improvement heat exchange efficiency.

Description

Heat exchange assembly and 500KG elliptical gas crucible furnace

Technical Field

The utility model relates to the technical field of crucible furnace heat exchange, in particular to a heat exchange assembly and a 500KG elliptical gas crucible furnace.

Background

The gas crucible furnace is a device for melting aluminum materials and keeping the temperature of aluminum alloy melt, and high-temperature flue gas in the crucible furnace enters the inside of a crucible furnace shell and indirectly heats the aluminum materials in the furnace body.

In the prior art, after being discharged, the high-temperature flue gas enters the heat exchange assembly for waste heat recovery, the heat exchange assembly performs preheating treatment on combustion-supporting gas, and energy waste of the high-temperature flue gas can be saved while combustion efficiency is improved.

But at present, the flow rate of combustion-supporting gas in the heat exchange assembly is faster, the flow path is short, the preheating effect is limited, and the heat exchange efficiency with high-temperature flue gas is lower. Therefore, the utility model provides a heat exchange assembly and a 500KG elliptic gas crucible furnace for solving the problems.

Disclosure of Invention

The utility model aims to provide a heat exchange assembly and a 500KG elliptic gas crucible furnace, so as to solve the problems of shorter flow path and lower heat exchange efficiency of combustion-supporting gas in the heat exchange assembly in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a heat exchange assembly, comprising:

the heat exchanger comprises a heat exchanger shell, wherein a reversing box body is fixedly arranged in an inner cavity of the heat exchanger shell, an air inlet cylinder and an air exhaust cylinder are respectively and fixedly connected to the upper end and the lower end of one side of the reversing box body, the air inlet cylinder and the air exhaust cylinder are communicated with the inner cavity of the reversing box body, sealing plates are fixedly connected to the end parts of the air inlet cylinder and the air exhaust cylinder, and a gas partition plate is vertically arranged in the middle of the inner cavity of the reversing box body;

the circular positioning plates are provided with two, and are respectively fixed in the inner cavity of one end of the air inlet cylinder and the air exhaust cylinder, which is far away from the reversing box body, a gap is reserved between the circular positioning plates and the sealing plates, a smoke guide pipe is arranged between the circular positioning plates and the gas partition plate, and two ends of the smoke guide pipe are respectively fixedly and penetratingly connected with the circular positioning plates and the gas partition plate; a kind of electronic device with high-pressure air-conditioning system

The guide baffle is provided with two groups and is located the inner chamber of intake tube and aiutage respectively, every group the guide baffle all is provided with a plurality ofly, and is a plurality of the guide baffle is equidistant between circular locating plate and gas baffle and distributes, the side of guide baffle has seted up the water conservancy diversion incision, and is a plurality of the water conservancy diversion incision on the guide baffle is deflected along same direction, and deflection angle increases gradually.

Preferably, two groups of flue gas conduits are arranged, each group of flue gas conduits is provided with a plurality of flue gas conduits, gaps for combustion-supporting gas to flow are reserved among the flue gas conduits, and the flue gas conduits are connected with the flow guide partition plate in a penetrating way.

Preferably, a crucible furnace shell is arranged on one side of the heat exchanger shell, a crucible furnace liner is fixedly arranged in an inner cavity of the crucible furnace shell, and the heat exchanger shell is fixedly connected with the surface of the crucible furnace shell.

Preferably, the surface of the crucible furnace shell is fixedly connected with a temperature measuring piece, a temperature measuring rod used for detecting the temperature of the flue gas is arranged inside the temperature measuring piece, and the temperature measuring rod penetrates through the surface of the crucible furnace shell and extends into a gap between the crucible furnace shell and the crucible furnace liner.

Preferably, the end part of the air inlet cylinder is fixedly communicated with a flue gas inlet pipe and a combustion-supporting air inlet pipe, a communication port of the flue gas inlet pipe is positioned between the circular positioning plate and the sealing plate, a communication port of the combustion-supporting air inlet pipe is positioned between the circular positioning plate and the gas partition plate, and the flue gas inlet pipe penetrates through the side wall of the heat exchanger shell and the side wall of the crucible furnace shell and extends into a gap between the crucible furnace shell and the crucible furnace liner.

Preferably, the end part of the exhaust funnel is fixedly communicated with a smoke outlet pipe and a combustion-supporting air outlet pipe, a communication opening of the smoke outlet pipe is positioned between the circular positioning plate and the sealing plate, and a communication opening of the combustion-supporting air outlet pipe is positioned between the circular positioning plate and the gas partition plate.

A500 KG elliptic gas crucible furnace comprises the heat exchange assembly.

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

the utility model discloses a be provided with a plurality of equidistant water conservancy diversion baffles that distribute between circular locating plate and gas baffle, the water conservancy diversion incision has been seted up to one side of water conservancy diversion baffle, the water conservancy diversion incision on a plurality of water conservancy diversion baffles deflects along same direction, and deflection angle increases gradually, when combustion-supporting gas flows in an inlet tube and aiutage inner chamber, combustion-supporting gas passes the water conservancy diversion baffle through the water conservancy diversion incision, thereby can form the vortex, the flow path of increase self, improve the heat transfer effect with in the flue gas pipe between the high temperature flue gas, with this improvement heat exchange efficiency.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the inside of the reversing box structure of the present utility model;

FIG. 3 is a schematic view showing the distribution of the baffle structure of the present utility model.

In the figure: 1. a heat exchanger housing; 2. a reversing box body; 21. a gas separator; 3. an air inlet cylinder; 4. an exhaust pipe; 5. a sealing plate; 6. a circular positioning plate; 7. a flue gas duct; 8. a baffle plate; 81. a diversion incision; 9. a crucible furnace housing; 10. a crucible furnace liner; 11. a temperature measuring member; 12. a flue gas inlet pipe; 13. a combustion-supporting air inlet pipe; 14. a flue gas outlet pipe; 15. and a combustion-supporting air outlet pipe.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 3, the present utility model provides a technical solution:

example 1

A heat exchange assembly, comprising: a heat exchanger shell 1, a circular locating plate 6 and a flow guide baffle 8.

Specifically, a reversing box body 2 is fixedly installed in the inner cavity of the heat exchanger shell 1, an air inlet cylinder 3 and an air exhaust cylinder 4 are fixedly connected to the upper end and the lower end of one side of the reversing box body 2 respectively, the air inlet cylinder 3 and the air exhaust cylinder 4 are communicated with the inner cavity of the reversing box body 2, sealing plates 5 are fixedly connected to the end parts of the air inlet cylinder 3 and the end parts of the air exhaust cylinder 4, the sealing plates 5 are used for sealing the open ends of the air inlet cylinder 3 and the air exhaust cylinder 4 so as to prevent leakage of flue gas and combustion-supporting gas, a gas partition plate 21 is vertically arranged in the middle of the inner cavity of the reversing box body 2, and the inner cavity of the reversing box body 2 is partitioned into a left space and a right space as shown in fig. 2 by the gas partition plate 21;

secondly, circular locating plate 6 is provided with two, and is fixed in the one end inner chamber that the switching-over box 2 was kept away from to intake tube 3 and aiutage 4 respectively, leave the clearance between circular locating plate 6 and the shrouding 5 for the flue gas flows, be provided with flue gas pipe 7 between circular locating plate 6 and the gas baffle 21, the both ends of flue gas pipe 7 respectively with circular locating plate 6 and the fixed through connection of gas baffle 21, as shown in fig. 2, the clearance between the right side inner chamber of switching-over box 2 and circular locating plate 6 and shrouding 5 is linked together at the both ends of flue gas pipe 7, the flow path of high temperature flue gas is: after entering the end part of the air inlet cylinder 3, the flue gas is positioned between the circular positioning plate 6 and the sealing plate 5, then is guided into the right side inner cavity of the reversing box body 2 through the flue gas guide pipe 7 in the inner cavity of the air inlet cylinder 3, is guided into the space between the circular positioning plate 6 and the sealing plate 5 at the end part of the air outlet cylinder 4 through the flue gas guide pipe 7 in the inner cavity of the air outlet cylinder 4, and finally is discharged, wherein the flue gas cannot enter the space between the circular positioning plate 6 and the gas baffle 21 when flowing in the whole process;

further, the baffle plates 8 are provided with two groups and are respectively positioned in the inner cavities of the air inlet cylinder 3 and the exhaust cylinder 4, each group of baffle plates 8 is provided with a plurality of baffle plates, the baffle plates 8 are distributed at equal intervals between the circular positioning plate 6 and the gas baffle plates 21, the side edges of the baffle plates 8 are provided with baffle cut-outs 81, the baffle cut-outs 81 on the baffle plates 8 deflect along the same direction, the deflection angle is gradually increased, and the flow path of the combustion-supporting gas is as follows: after entering the inner cavity of the air inlet cylinder 3, the combustion-supporting gas can only pass through the guide baffle plate 8 from the guide cut 81 when flowing between the circular positioning plate 6 and the gas baffle plate 21, and because the guide cut 81 on the guide baffle plates 8 gradually deflects, the combustion-supporting gas can rotate and flow in the inner cavity of the air inlet cylinder 3 and enter the left inner cavity of the reversing box body 2 and then enter the inner cavity of the exhaust cylinder 4 to rotate and flow again, so that the flow path of the combustion-supporting gas is effectively prolonged, and the flow path is spiral, and the heat exchange effect with high-temperature flue gas can be improved.

Example two

On the basis of the first embodiment, in order to ensure that high-temperature flue gas can be timely discharged, two groups of flue gas ducts 7 are arranged, a plurality of flue gas ducts 7 are arranged in each group, gaps for combustion-supporting gas to flow are reserved among the plurality of flue gas ducts 7, the flue gas ducts 7 are in penetrating connection with the flow guide baffle plates 8, and the arrangement of the plurality of flue gas ducts 7 ensures that the high-temperature flue gas can be timely discharged.

Example III

On the basis of the second embodiment, in order to install the heat exchanger shell 1, the utility model further provides a crucible furnace shell 9 arranged on one side of the heat exchanger shell 1, a crucible furnace liner 10 is fixedly arranged in an inner cavity of the crucible furnace shell 9, and the heat exchanger shell 1 is fixedly connected with the surface of the crucible furnace shell 9 and used for determining the installation position of the heat exchanger shell 1.

Example IV

On the basis of the third embodiment, the utility model is also provided with a temperature measuring piece 11 fixedly connected to the surface of the crucible furnace shell 9, a temperature measuring rod used for detecting the temperature of the flue gas is arranged inside the temperature measuring piece 11, and the temperature measuring rod penetrates through the surface of the crucible furnace shell 9 and extends into a gap between the crucible furnace shell 9 and the crucible furnace liner 10 to be used for detecting the temperature of the high-temperature flue gas in the inner cavity of the crucible furnace shell 9.

Example five

On the basis of the fourth embodiment, in order to avoid mixing high-temperature flue gas and combustion-supporting gas together, the utility model also has the advantages that the end part of the air inlet cylinder 3 is fixedly communicated with the flue gas inlet pipe 12 and the combustion-supporting air inlet pipe 13, the communication port of the flue gas inlet pipe 12 is positioned between the circular positioning plate 6 and the sealing plate 5, after the high-temperature flue gas enters the inner cavity of the air inlet cylinder 3, the high-temperature flue gas can be guided by the flue gas guide pipe 7, the communication port of the combustion-supporting air inlet pipe 13 is positioned between the circular positioning plate 6 and the gas baffle 21, the circular positioning plate 6 can separate the high-temperature flue gas and the combustion-supporting gas from being mixed mutually, and the flue gas inlet pipe 12 penetrates through the side wall of the heat exchanger shell 1 and the side wall of the crucible furnace shell 9 and extends into the gap between the crucible furnace shell 9 and the crucible furnace liner 10, namely, the high-temperature flue gas in the inner cavity of the crucible furnace shell 9 can enter the inner cavity of the air inlet cylinder 3 through the flue gas inlet pipe 12.

Example six

On the basis of the fifth embodiment, in order to discharge high-temperature flue gas and combustion-supporting gas, the utility model further provides a flue gas outlet pipe 14 and a combustion-supporting air outlet pipe 15 fixedly communicated with the end part of the exhaust funnel 4, a communication opening of the flue gas outlet pipe 14 is positioned between the circular positioning plate 6 and the sealing plate 5, a communication opening of the combustion-supporting air outlet pipe 15 is positioned between the circular positioning plate 6 and the gas partition plate 21, and the flue gas outlet pipe 14 and the combustion-supporting air outlet pipe 15 are respectively used for discharging high-temperature flue gas and combustion-supporting gas.

The utility model also discloses a 500KG elliptic gas crucible furnace, which comprises the heat exchange assembly.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A heat exchange assembly, characterized in that: comprising the following steps:

the heat exchanger comprises a heat exchanger shell (1), wherein a reversing box body (2) is fixedly arranged in an inner cavity of the heat exchanger shell (1), an air inlet cylinder (3) and an air exhaust cylinder (4) are fixedly connected to the upper end and the lower end of one side of the reversing box body (2), the air inlet cylinder (3) and the air exhaust cylinder (4) are communicated with the inner cavity of the reversing box body (2), sealing plates (5) are fixedly connected to the end parts of the air inlet cylinder (3) and the air exhaust cylinder (4), and a gas partition plate (21) is vertically arranged in the middle of the inner cavity of the reversing box body (2);

the circular positioning plates (6) are arranged, the circular positioning plates (6) are respectively fixed in an inner cavity of one end of the air inlet cylinder (3) and one end of the air exhaust cylinder (4) away from the reversing box body (2), a gap is reserved between the circular positioning plates (6) and the sealing plate (5), a flue gas guide pipe (7) is arranged between the circular positioning plates (6) and the gas partition plate (21), and two ends of the flue gas guide pipe (7) are respectively fixedly and penetratingly connected with the circular positioning plates (6) and the gas partition plate (21); a kind of electronic device with high-pressure air-conditioning system

The air inlet cylinder (3) and the inner cavity of the exhaust cylinder (4) are respectively arranged in two groups, each group of air inlet cylinder (8) is provided with a plurality of air inlet cylinders, the air inlet cylinders are distributed at equal intervals between the circular locating plates (6) and the air baffle (21) by the air baffle (8), the side edges of the air baffle (8) are provided with air guide notches (81), and the air guide notches (81) on the air baffle (8) deflect along the same direction and the deflection angle is gradually increased.

2. A heat exchange assembly according to claim 1, wherein: the flue gas guide pipes (7) are provided with two groups, each group of flue gas guide pipes (7) are provided with a plurality of flue gas guide pipes, gaps for combustion-supporting gas to flow are reserved between the flue gas guide pipes (7), and the flue gas guide pipes (7) are connected with the guide partition plates (8) in a penetrating mode.

3. A heat exchange assembly according to claim 2, wherein: one side of the heat exchanger shell (1) is provided with a crucible furnace shell (9), an inner cavity of the crucible furnace shell (9) is fixedly provided with a crucible furnace liner (10), and the heat exchanger shell (1) is fixedly connected with the surface of the crucible furnace shell (9).

4. A heat exchange assembly according to claim 3, wherein: the surface fixing of crucible furnace casing (9) is connected with temperature measurement spare (11), temperature measurement spare (11) inside is provided with the temperature measurement stick that is used for carrying out temperature detection to the flue gas, and the temperature measurement stick runs through the surface of crucible furnace casing (9) and extends to in the clearance between crucible furnace casing (9) and crucible furnace inner bag (10).

5. A heat exchange assembly according to claim 4, wherein: the end part of the air inlet cylinder (3) is fixedly communicated with a flue gas inlet pipe (12) and a combustion-supporting air inlet pipe (13), a communication port of the flue gas inlet pipe (12) is positioned between the circular positioning plate (6) and the sealing plate (5), a communication port of the combustion-supporting air inlet pipe (13) is positioned between the circular positioning plate (6) and the gas partition plate (21), and the flue gas inlet pipe (12) penetrates through the side wall of the heat exchanger shell (1) and the side wall of the crucible furnace shell (9) and extends into a gap between the crucible furnace shell (9) and the crucible furnace liner (10).

6. A heat exchange assembly according to claim 5, wherein: the end part of the exhaust funnel (4) is fixedly communicated with a smoke outlet pipe (14) and a combustion-supporting air outlet pipe (15), a communication opening of the smoke outlet pipe (14) is positioned between the circular positioning plate (6) and the sealing plate (5), and a communication opening of the combustion-supporting air outlet pipe (15) is positioned between the circular positioning plate (6) and the air partition plate (21).

7. A500 KG elliptical gas crucible furnace is characterized in that: a heat exchange assembly comprising any one of claims 1-6.