Heating furnace heat recovery device

Abstract

The utility model discloses a heating furnace heat recovery device which comprises a device body, an air inlet groove and an air outlet groove are fixedly installed on the front side and the rear side of the bottom of the device body in a penetrating mode respectively, and a fan is fixedly installed at the rear end of the device body in a penetrating mode. A sealing ring used for sealing the interior of the front end of the device body is fixedly installed in the front end of the device body, a filter groove is fixedly installed in the middle of the sealing ring in a penetrating mode, and a filter element used for filtering fresh air entering the device body through an air inlet groove is movably connected to the interior of the filter groove in an attached mode. The front side of the upper top end of the device body is provided with the replacement opening in a penetrating and hinged mode. An air inlet pipe and an air outlet pipe are fixedly installed on the two sides of the rear end of the device body in a penetrating mode correspondingly, and a heat absorption copper pipe fixedly communicates with the bottom of the air inlet pipe. The waste gas heat recovery device achieves the heat recovery effect on waste gas of the heating furnace.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating furnace technical field, concretely is a kind of heating furnace heat recovery device. BACKGROUND

[0002] The furnace is a kind of equipment (industrial furnace) that heats material or workpiece (usually metal) to rolling or forging temperature. It plays a core role in the metallurgical industry, but also has wide application in many industry fields such as petroleum, chemical industry, machinery, heat treatment, surface treatment, building materials, electronics, materials, light industry, daily chemical, pharmaceutical and so on. The main role of the heating furnace is to make the material or workpiece reach the required forging or rolling temperature through the heating process to meet the needs of subsequent processing or treatment. In the metallurgical industry, it usually means heating metal to a temperature suitable for rolling or forging.

[0003] However, in actual use, the conventional heating furnace is widely used in industrial production, but a large amount of high-temperature exhaust gas is generated during the working process of the heating furnace. These exhaust gases are directly discharged into the atmosphere, which not only causes energy waste, but also pollutes the environment. Therefore, it is of great significance to develop a high-efficiency heat recovery device to recover the heat energy from the exhaust gas generated by the heating furnace. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of heating furnace heat recovery device to solve the problem that the conventional heating furnace is widely used in industrial production, but the thermal efficiency is low, energy is wasted seriously, a large amount of high-temperature exhaust gas is generated during the working process of the heating furnace, these exhaust gases are directly discharged into the atmosphere, which not only causes energy waste, but also pollutes the environment.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a device main body is provided, the device main body bottom front and back sides are respectively penetrated and fixedly installed with air inlet groove and air outlet groove, the device main body rear end is penetrated and fixedly installed with fan, the device main body front end is fixedly installed with sealing ring in the inside for sealing the inside of device main body front end, the sealing ring middle part is penetrated and fixedly installed with filter groove, the filter groove inside is movably connected with filter filter core for filtering fresh air entering the inside of device main body through air inlet groove, the device main body upper top front side is penetrated and hingedly installed with replacement opening;

[0006] The device main body rear end two sides are respectively penetrated and fixedly installed with inlet pipe and outlet pipe, the inlet pipe bottom is fixedly installed with heat-absorbing copper pipe.

[0007] Preferably, the device main body lower end outer side wall is fixedly installed with support leg, and the number of support legs is four, every two support legs form a group, and two groups of support legs are symmetrically distributed on the device main body lower end outer side wall.

[0008] Preferably, the lower end of the air inlet slot and the air outlet slot are provided with mounting holes, and the mounting holes are symmetrically distributed at the four corners of the lower end of the air inlet slot and the air outlet slot, so that the air inlet slot and the external air inlet are installed and communicated through the mounting holes and mounting bolts, and the air outlet slot and the fresh air inlet of the heating furnace are installed and communicated.

[0009] Preferably, the lower end of the air outlet of the fan is installed and communicated with the air outlet slot, and the front end of the air inlet of the fan is located inside the rear end of the device main body.

[0010] Preferably, the upper end of the filter slot is provided with an opening, and the replacement opening is on the same vertical line with the opening at the upper end of the filter slot.

[0011] Preferably, the outer end of the air inlet pipe and the air outlet pipe is fixedly provided with a connecting flange, so that the air inlet pipe and the exhaust air outlet pipe of the heating furnace are communicated through the connecting flange, and the air outlet pipe and the external exhaust gas treatment device for treating the exhaust gas of the heating furnace are communicated.

[0012] Preferably, the heat-absorbing copper pipe is in S-shaped distribution, the tail end of the heat-absorbing copper pipe is fixedly installed and communicated with the bottom of the air outlet pipe, and the heat-absorbing copper pipe is located in front of the front end of the air inlet of the fan.

[0013] Compared with the prior art, the device has the following beneficial effects:

[0014] When the high-temperature exhaust gas enters the heat-absorbing copper pipe, the heat-absorbing copper pipe can absorb heat and cool the high-temperature exhaust gas, so that the exhaust gas will not continue to maintain high temperature when being discharged into the external exhaust gas treatment device through the air outlet pipe. When the heat-absorbing copper pipe absorbs heat and cools the high-temperature exhaust gas, the fan is controlled to be turned on, and when the fan is turned on, the front end of the air inlet of the fan can suck air from the front end of the device main body. When the front end of the air inlet of the fan sucks air from the front end of the device main body, the fan can bring the heat generated by the heat-absorbing copper pipe into the heating furnace through the air outlet slot, so that the heating furnace can directly suck the fresh air with temperature when sucking fresh air, thereby avoiding the need to additionally heat the fresh air after the heating furnace sucks fresh air, thereby realizing heat recovery of the exhaust gas of the heating furnace.

[0015] When the front end of the air inlet of the fan sucks air from the front end of the device main body, the filter element can filter the fresh air entering the device main body through the air inlet slot, thereby avoiding the case that the impurities in the fresh air entering the heating furnace through the fan and the air outlet slot pollute the inside of the heating furnace. When the filter element needs to be replaced, the replacement opening is opened, and the filter element can be taken out from the opening at the upper end of the filter slot, thereby facilitating replacement of the filter element. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 For the heating furnace heat recovery device overall structure schematic Figure 1 ;

[0017] Figure 2 For the heating furnace heat recovery device overall structure schematic Figure 2 ;

[0018] Figure 3 For the heating furnace heat recovery device overall structure schematic view.

[0019] In the figure: 1, device main body; 2, support foot; 3, air inlet slot; 4, air outlet slot; 5, mounting hole; 6, fan; 7, sealing ring; 8, filter tank; 9, filter cartridge; 10, replacement port; 11, air inlet pipe; 12, air outlet pipe; 13, heat absorbing copper pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figures 1-3 , the present application provides a kind of heating furnace heat recovery device technical scheme: including device main body 1, device main body 1 lower end outer wall fixed installation is provided with support foot 2, and support foot 2 quantity has four, every two support foot 2 is a group, and two groups of support foot 2 are symmetrically distributed with device main body 1 lower end outer wall respectively;

[0022] An air inlet slot 3 and an air outlet slot 4 are fixedly installed through the front and rear sides of the bottom of the main body 1, respectively. Mounting holes 5 are provided at the four corners of the lower end of the air inlet slot 3 and the air outlet slot 4, symmetrically distributed around the four corners. This allows the air inlet slot 3 to be connected to an external air inlet and the air outlet slot 4 to be connected to the fresh air inlet of the heating furnace via mounting bolts. A fan 6 is fixedly installed through the rear end of the main body 1, with its lower air outlet connected to the air outlet slot 4. The front end of the fan 6... The air inlet is located at the rear end of the device body 1. A sealing ring 7 is fixedly installed inside the front end of the device body 1 to seal the front end of the device body 1. A filter groove 8 is fixedly installed through the middle of the sealing ring 7, and an opening is opened at the upper end of the filter groove 8. A filter element 9 is movably connected inside the filter groove 8 to filter the fresh air entering the device body 1 through the air inlet groove 3. A replacement port 10 is hingedly installed through the top front side of the device body 1, and the replacement port 10 and the opening at the upper end of the filter groove 8 are on the same vertical line.

[0023] An air inlet pipe 11 and an air outlet pipe 12 are fixedly installed on both sides of the rear end of the main body 1. A connecting flange is fixedly installed at the outer opening of the air inlet pipe 11 and the air outlet pipe 12, so that the air inlet pipe 11 is connected to the exhaust gas outlet pipe of the heating furnace through the connecting flange, and the air outlet pipe 12 is connected to the external exhaust gas treatment device for treating the exhaust gas of the heating furnace. A heat-absorbing copper pipe 13 is fixedly installed and connected to the bottom of the air inlet pipe 11. The heat-absorbing copper pipe 13 is distributed in an S-shape. The tail end of the heat-absorbing copper pipe 13 is fixedly installed and connected to the bottom of the air outlet pipe 12. The heat-absorbing copper pipe 13 is located directly in front of the air inlet of the front end of the fan 6.

[0024] Working principle: in use, the utility model communicates the intake pipe 11 and the waste gas outlet pipeline of the heating furnace through the connecting flange, communicates the outlet pipe 12 and the external waste gas treatment device for treating the waste gas of the heating furnace, when the intake pipe 11 and the outlet pipe 12 are communicated with the waste gas outlet pipeline of the heating furnace and the external waste gas treatment device for treating the waste gas of the heating furnace respectively, the high-temperature waste gas generated by the heating furnace enters the heat-absorbing copper pipe 13 inside through the intake pipe 11, when the high-temperature waste gas enters the heat-absorbing copper pipe 13 inside, the heat-absorbing copper pipe 13 carries out heat absorption and temperature reduction to the high-temperature waste gas, so that the waste gas does not continue to keep high temperature when being discharged to the external waste gas treatment device through the outlet pipe 12, and when the heat-absorbing copper pipe 13 carries out heat absorption and temperature reduction to the high-temperature waste gas, the fan 6 is controlled to be opened, when the fan 6 is opened, the fan 6 front end air inlet carries out air suction to the device main body 1 front end inside, when the fan 6 front end air inlet carries out air suction to the device main body 1 front end inside, the fan 6 carries the heat generated by the heat-absorbing copper pipe 13 into the heating furnace inside through the air outlet groove 4, so that the heating furnace can directly suck the new air with temperature when carrying out new air suction, avoiding the need for additional heating of the new air after the heating furnace carries out new air suction, thereby realizing the heat recovery effect of the waste gas of the heating furnace.

[0025] At the same time, when the fan 6 front end air inlet carries out air suction to the device main body 1 front end inside, the filter element 9 can filter the new air entering the device main body 1 inside through the air inlet groove 3, avoiding the case that the new air entering the heating furnace inside through the fan 6 and the air outlet groove 4 has too many impurities to pollute the inside of the heating furnace, and when the filter element 9 needs to be replaced, the replacement opening 10 is opened, and the filter element 9 is taken out from the filter groove 8 upper end opening, so that the filter element 9 can be conveniently replaced.

[0026] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A heating furnace heat recovery device, characterized by: Including device body (1), the bottom of device body (1) is respectively fixedly provided with air inlet slot (3) and air outlet slot (4) on the front and back sides, the rear end of device body (1) is fixedly provided with fan (6), the front end of device body (1) is fixedly provided with sealing ring (7) for sealing the front end of device body (1) inside, the middle part of sealing ring (7) is fixedly provided with filter groove (8), the inside of filter groove (8) is movably connected with filter filter core (9) for filtering fresh air entering the inside of device body (1) through air inlet slot (3), the top front side of device body (1) is hingedly provided with replacement opening (10). The rear end of device body (1) is respectively fixedly provided with air inlet pipe (11) and air outlet pipe (12) on both sides, the bottom of air inlet pipe (11) is fixedly connected with heat-absorbing copper pipe (13).

2. A heating furnace heat recovery device according to claim 1, characterized by: The outer side wall of the lower end of device body (1) is fixedly provided with support leg (2), and the number of support leg (2) is four, every two support legs (2) form a group, and two groups of support legs (2) are symmetrically distributed on the outer side wall of the lower end of device body (1).

3. A heating furnace heat recovery device according to claim 2, characterized in that: The lower end of air inlet slot (3) and air outlet slot (4) is respectively provided with mounting hole (5) on the four corners, and the mounting hole (5) is symmetrically distributed on the four corners of the lower end of air inlet slot (3) and air outlet slot (4), so that the air inlet slot (3) and the external air inlet are installed and communicated through the mounting hole (5) and the mounting bolt, and the air outlet slot (4) and the fresh air inlet of the heating furnace are installed and communicated.

4. A heating furnace heat recovery device according to claim 3, characterized in that: The lower end of fan (6) is installed and communicated with air outlet slot (4), and the front end of fan (6) is located in the rear end of the inside of device body (1).

5. A heating furnace heat recovery device according to claim 4, characterized in that: The upper end of filter groove (8) is provided with an opening, and the replacement opening (10) is on the same vertical line with the upper end opening of filter groove (8).

6. A heating furnace heat recovery device according to claim 5, characterized in that: The outer end opening of air inlet pipe (11) and air outlet pipe (12) is fixedly provided with connecting flange, so that the air inlet pipe (11) and the exhaust pipe of the heating furnace are communicated through the connecting flange, and the air outlet pipe (12) and the external exhaust gas treatment device for treating the exhaust gas of the heating furnace are communicated.

7. A heating furnace heat recovery device according to claim 6, characterized in that: The heat-absorbing copper pipe (13) is in S-shaped distribution, the tail end of heat-absorbing copper pipe (13) is fixedly installed and communicated with the bottom of air outlet pipe (12), and the heat-absorbing copper pipe (13) is located in front of the front air inlet of fan (6).

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