Tempering furnace with waste heat recovery function

Abstract

The utility model relates to tempering furnace technical field, and disclose a kind of tempering furnace with waste heat recovery function, including tempering furnace body, the one side of tempering furnace body top is fixedly arranged with exhaust fume component, one end of exhaust fume component is fixedly arranged with recovery pipe, one end of recovery pipe is fixedly arranged with heat exchange copper pipe, the surface of heat exchange copper pipe is sleeved with raw material preheating box, one end of heat exchange copper pipe is fixedly arranged with two-stage preheating sleeve.The tempering furnace with waste heat recovery function, by the setting of heat exchange copper pipe, raw material preheating box and two-stage preheating sleeve, exhaust fume component is transported to heat exchange copper pipe in the tail gas of tempering furnace body, heat exchange copper pipe and raw material preheating box in heat transfer oil carry out first heat exchange, raw material preheating box can preheat material, exhaust gas after heat exchange is transported to two-stage preheating sleeve, air in air supply pipe is preheated, reach the effect of stage recovery flue gas waste heat, improve waste heat recovery efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tempering furnace technology, and in particular to a tempering furnace with waste heat recovery function. Background Technology

[0002] Tempering furnaces are used for tempering general metal parts in air, as well as for quenching, annealing, and aging heat treatment of light alloy parts such as aluminum alloy die castings, pistons, and aluminum plates. Tempering furnaces generate high-temperature flue gas during operation; recovering the waste heat from this flue gas can significantly save energy.

[0003] A tempering furnace with waste heat recovery function is disclosed in announcement number CN221877108U. Although this utility model provides a tempering furnace with waste heat recovery function, through the coordinated arrangement of various components of the device, when the tempering furnace body generates high-temperature air during operation, the exhaust fan draws the high-temperature exhaust gas inside the tempering furnace body into the inner side of the heating tube through the air outlet pipe, and heats the water inside the heating cylinder through the heating tube, thereby improving the utilization rate of high-temperature exhaust gas. With the cooperation of the cleaning component box and the collection component, the device has the function of waste heat recovery and utilization, which is more energy-saving and environmentally friendly. At the same time, it can also filter and collect the dust mixed in the exhaust gas to prevent air pollution.

[0004] However, this tempering furnace with waste heat recovery function has the following disadvantages: it is not convenient to fully recover the waste heat of flue gas, and the flue gas will still retain a lot of heat after heating the water, thus wasting the heat source. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a tempering furnace with waste heat recovery function, so as to solve the problem mentioned in the background art that it is not convenient to fully recover the waste heat of flue gas.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a tempering furnace with waste heat recovery function, comprising a tempering furnace body, a smoke exhaust assembly fixedly installed on one side of the top surface of the tempering furnace body, a recovery pipe fixedly installed at one end of the smoke exhaust assembly, a heat exchange copper tube fixedly installed at one end of the recovery pipe, a raw material preheating box sleeved on the surface of the heat exchange copper tube, a secondary preheating sleeve fixedly installed at one end of the heat exchange copper tube, an exhaust pipe fixedly installed on the surface of the secondary preheating sleeve, a purification chamber fixedly installed at one end of the exhaust pipe, and a purification assembly inserted into the interior of the purification chamber.

[0009] As a further embodiment of this utility model, the smoke exhaust assembly includes a smoke exhaust duct and a negative pressure fan. The smoke exhaust duct is fixedly disposed on one side of the top surface of the tempering furnace body, and the negative pressure fan is fixedly installed on one side of the smoke exhaust duct. The smoke exhaust assembly is used to exhaust flue gas.

[0010] As a further embodiment of this utility model, the inner wall of the raw material preheating box is provided with a cavity, the cavity is filled with heat-conducting oil, and the heat exchange copper tube is fixedly installed inside the cavity, so that the heat-conducting oil can easily exchange heat with the flue gas.

[0011] As a further embodiment of this utility model, a box cover is snapped onto one side of the raw material preheating box, and handles are fixedly installed on both sides of the surface of the box cover for opening and closing the box cover.

[0012] As a further embodiment of this utility model, an air supply pipe is fixedly provided on one side of the surface of the tempering furnace body, and a blower is fixedly installed at one end of the air supply pipe for blowing air.

[0013] As a further embodiment of this utility model, the secondary preheating sleeve is fitted onto the surface of the air supply pipe, and a flow cavity is formed in the inner wall of the secondary preheating sleeve. The exhaust pipe and the heat exchange copper pipe are both connected to the flow cavity, and the secondary preheating sleeve is used to preheat the intake air.

[0014] As a further embodiment of this utility model, the purification component includes an activated carbon plate and a closed cover. The activated carbon plate is inserted into the interior of the purification chamber, and the closed cover is fixedly installed on the top surface of the activated carbon plate. An exhaust pipe is connected to one side of the purification chamber for discharging the purified exhaust gas.

[0015] (III) Beneficial Effects

[0016] This utility model provides a tempering furnace with waste heat recovery function, which has the following beneficial effects:

[0017] 1. This tempering furnace with waste heat recovery function, through the setting of heat exchange copper tubes, raw material preheating box and secondary preheating jacket, the flue gas component delivers the exhaust gas of the tempering furnace body to the heat exchange copper tubes. The heat exchange copper tubes exchange heat with the heat transfer oil in the raw material preheating box. The raw material preheating box can preheat the material. The exhaust gas after heat exchange is delivered to the secondary preheating jacket to preheat the air in the air supply pipe, achieving the effect of staged recovery of flue gas waste heat and improving waste heat recovery efficiency.

[0018] This tempering furnace with waste heat recovery function uses a purification component to insert activated carbon plates into the purification chamber. The activated carbon plates filter and purify the exhaust gas after heat exchange, removing impurities and pollutants from the exhaust gas, which is then discharged through an external exhaust pipe to avoid polluting the external environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the raw material preheating box structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the heat exchange copper tube structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the air supply pipe and the secondary preheating jacket structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the purification component structure of this utility model.

[0024] In the diagram: 1. Tempering furnace body; 2. Smoke exhaust assembly; 201. Smoke exhaust duct; 202. Negative pressure fan; 3. Recovery pipe; 4. Heat exchange copper pipe; 5. Raw material preheating box; 6. Secondary preheating jacket; 7. Exhaust pipe; 8. Purification chamber; 9. Purification assembly; 901. Activated carbon plate; 902. Closing cover; 10. Box cover; 11. Air supply pipe; 12. Blower; 13. External exhaust pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] Please see Figures 1 to 5 This utility model provides a technical solution: a tempering furnace with waste heat recovery function, including a tempering furnace body 1, a flue gas assembly 2 fixedly installed on one side of the top surface of the tempering furnace body 1, a recovery pipe 3 fixedly installed at one end of the flue gas assembly 2, a heat exchange copper tube 4 fixedly installed at one end of the recovery pipe 3, a raw material preheating box 5 sleeved on the surface of the heat exchange copper tube 4, and a secondary preheating sleeve 6 fixedly installed at one end of the heat exchange copper tube 4. Through the arrangement of the heat exchange copper tube 4, the raw material preheating box 5 and the secondary preheating sleeve 6, the flue gas assembly 2 delivers the exhaust gas of the tempering furnace body 1 to the heat exchange copper tube 4. The heat exchange copper tube 4 exchanges heat with the heat transfer oil in the raw material preheating box 5. The raw material preheating box 5 can preheat the material. The exhaust gas after heat exchange is delivered to the secondary preheating sleeve 6 to preheat the air in the air supply pipe 11, achieving the effect of staged recovery of flue gas waste heat and improving the waste heat recovery efficiency.

[0027] An exhaust pipe 7 is fixedly installed on the surface of the secondary preheating jacket 6. A purification chamber 8 is fixedly installed at one end of the exhaust pipe 7. A purification component 9 is inserted into the interior of the purification chamber 8. Through the installation of the purification component 9, an activated carbon plate 901 is inserted into the purification chamber 8. The activated carbon plate 901 filters and purifies the exhaust gas after heat exchange, removing impurities and pollutants mixed in the exhaust gas. Then, it is discharged through the external exhaust pipe 13 to avoid polluting the external environment.

[0028] The exhaust assembly 2 includes an exhaust duct 201 and a negative pressure fan 202. The exhaust duct 201 is fixedly installed on one side of the top surface of the tempering furnace body 1, and the negative pressure fan 202 is fixedly installed on one side of the exhaust duct 201.

[0029] With the exhaust assembly 2 in place, the exhaust duct 201 is used for exhausting smoke, and the negative pressure fan 202 delivers the flue gas into the heat exchange copper tube 4.

[0030] The inner wall of the raw material preheating box 5 has a cavity, which is filled with heat transfer oil, and the heat exchange copper tube 4 is fixedly installed inside the cavity.

[0031] The cavity serves to fill the heat-conducting oil, which facilitates heat exchange with the flue gas.

[0032] A cover 10 is snapped onto one side of the raw material preheating box 5, and handles are fixedly installed on both sides of the surface of the cover 10.

[0033] The handle serves to open and close the lid 10.

[0034] An air supply pipe 11 is fixedly installed on one side of the surface of the tempering furnace body 1, and a blower 12 is fixedly installed at one end of the air supply pipe 11.

[0035] By setting up the air supply pipe 11, the blower 12 is turned on, and air is blown into the tempering furnace body 1 through the air supply pipe 11 to carry out heat circulation.

[0036] The secondary preheating jacket 6 is fitted onto the surface of the air supply pipe 11. The inner wall of the secondary preheating jacket 6 has a flow cavity, and the exhaust pipe 7 and the heat exchange copper pipe 4 are both connected to the flow cavity.

[0037] The secondary preheating jacket 6 is used to preheat the air in the air supply duct 11.

[0038] The purification component 9 includes an activated carbon plate 901 and a closing cover 902. The activated carbon plate 901 is inserted into the interior of the purification chamber 8, and the closing cover 902 is fixedly installed on the top surface of the activated carbon plate 901. An external exhaust pipe 13 is connected to one side of the purification chamber 8.

[0039] With the purification component 9 in place, the activated carbon plate 901 filters and purifies the exhaust gas after heat exchange, removing impurities and pollutants mixed in with the exhaust gas.

[0040] In this invention, the working steps of the device are as follows:

[0041] First step: The exhaust gas assembly 2 delivers the exhaust gas from the tempering furnace body 1 to the heat exchange copper tube 4. The heat exchange copper tube 4 exchanges heat with the heat transfer oil in the raw material preheating box 5. The raw material preheating box 5 can preheat the material.

[0042] The second step: the exhaust gas after heat exchange is sent to the secondary preheating jacket 6 to preheat the air in the air supply duct 11, and the waste heat of the flue gas is recovered in stages, which improves the waste heat recovery efficiency.

[0043] The third step: The activated carbon plate 901 is inserted into the purification chamber 8. The activated carbon plate 901 filters and purifies the exhaust gas after heat exchange, removing impurities and pollutants from the exhaust gas, and then discharges it through the external exhaust pipe 13 to avoid polluting the external environment. It should be noted that the equipment structure and drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, those skilled in the art can clearly understand the specific structure of its power mechanism, power supply system and control system if they understand the principle of the above utility model. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0044] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0045] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tempering furnace with waste heat recovery function, comprising a tempering furnace body (1), characterized in that: A smoke exhaust assembly (2) is fixedly installed on one side of the top surface of the tempering furnace body (1). A recovery pipe (3) is fixedly installed at one end of the smoke exhaust assembly (2). A heat exchange copper tube (4) is fixedly installed at one end of the recovery pipe (3). A raw material preheating box (5) is sleeved on the surface of the heat exchange copper tube (4). A secondary preheating sleeve (6) is fixedly installed at one end of the heat exchange copper tube (4). An exhaust pipe (7) is fixedly installed on the surface of the secondary preheating sleeve (6). A purification chamber (8) is fixedly installed at one end of the exhaust pipe (7). A purification assembly (9) is inserted into the interior of the purification chamber (8).

2. The tempering furnace with waste heat recovery function according to claim 1, characterized in that: The exhaust assembly (2) includes an exhaust duct (201) and a negative pressure fan (202). The exhaust duct (201) is fixedly installed on one side of the top surface of the tempering furnace body (1), and the negative pressure fan (202) is fixedly installed on one side of the exhaust duct (201).

3. The tempering furnace with waste heat recovery function according to claim 1, characterized in that: The inner wall of the raw material preheating box (5) is provided with a cavity, the cavity is filled with heat-conducting oil, and the heat exchange copper tube (4) is fixedly installed inside the cavity.

4. The tempering furnace with waste heat recovery function according to claim 1, characterized in that: A box cover (10) is snapped onto one side of the raw material preheating box (5), and handles are fixedly installed on both sides of the surface of the box cover (10).

5. The tempering furnace with waste heat recovery function according to claim 1, characterized in that: An air supply pipe (11) is fixedly installed on one side of the surface of the tempering furnace body (1), and a blower (12) is fixedly installed at one end of the air supply pipe (11).

6. The tempering furnace with waste heat recovery function according to claim 5, characterized in that: The secondary preheating sleeve (6) is fitted onto the surface of the air supply pipe (11). The inner wall of the secondary preheating sleeve (6) is provided with a flow cavity. The exhaust pipe (7) and the heat exchange copper pipe (4) are both connected to the flow cavity.

7. The tempering furnace with waste heat recovery function according to claim 1, characterized in that: The purification component (9) includes an activated carbon plate (901) and a closing cover (902). The activated carbon plate (901) is inserted into the interior of the purification chamber (8), and the closing cover (902) is fixedly installed on the top surface of the activated carbon plate (901). An external drain pipe (13) is connected to one side of the purification chamber (8).

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