Liquefied steam burner heat exchange device for energy-saving and environment-friendly electrostatic spraying oven

Abstract

The utility model belongs to the technical field of electrostatic spraying ovens, and particularly relates to a liquefied gas burner heat exchange device for an energy-saving and environment-friendly electrostatic spraying oven, which comprises an oven, the oven is of a cube structure, a hollow heat conduction cavity for guiding heat is arranged on an oven frame body, and heat conduction fins are arranged on four inner walls of the oven. A burner body and a combustion chamber are arranged at the top of the drying oven, a flame projector located in the combustion chamber is arranged on the burner body, an air inducing assembly communicated with the combustion chamber is arranged at the top of the combustion chamber, and an air guide pipe communicated with the combustion chamber and located in the hollow heat conduction cavity is arranged at the bottom of the combustion chamber; and an air inlet of the exhaust pipe is located in the hollow heat conduction cavity, the exhaust pipe is connected with the gas purification assembly through a guide pipe, and the purification assembly is connected with the air induction assembly through a flow guide pipe. According to the device, heat can be evenly distributed, the drying effect is uniform, the drying effect is improved, meanwhile, gas can be purified, and the effect of protecting the environment is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrostatic spraying ovens, and specifically relates to a liquefied gas burner heat exchange device for an energy-saving and environmentally friendly electrostatic spraying oven. Background Art

[0002] In industrial production, electrostatic spray oven is a common equipment used to dry the workpiece after spraying. Traditional electrostatic spray oven usually uses liquefied petroleum gas burner as heat source, but there are some problems in actual use.

[0003] The existing burner heat exchange device comprises an oven and a burner arranged on the oven. The burner works to heat the air, so that the heat exchanger located inside the oven exchanges heat with the air inside the oven.

[0004] For example, a burner oven heat conduction device described in authorization announcement number CN208139797U isolates the air in the oven from the flame, improves safety performance, and heats the air circulation outside the heat conduction channel in the oven, saving energy.

[0005] However, the heat exchanger is located inside the oven, and the heat it dissipates is dispersed to the surroundings. However, since the oven is very large, such heat dissipation will lead to uneven heat distribution, causing the temperature in some areas of the oven to be too high and the temperature in other areas to be too low, which will affect the consistency of the drying effect and the quality of the product.

[0006] On the other hand, if the harmful gases produced during the combustion process are directly discharged into the environment, it will cause environmental pollution and may also cause harm to the health of operators.

[0007] To this end, we proposed an energy-saving and environmentally friendly electrostatic spray oven with a liquefied gas burner heat exchange device, which can not only evenly distribute heat and improve the drying effect, but also purify the gas to achieve the effect of protecting the environment. Utility Model Content

[0008] The purpose of this utility model is to provide an energy-saving and environmentally friendly electrostatic spray oven with a liquefied gas burner heat exchange device, which can not only make the heat distribution uniform and improve the drying effect, but also purify the gas to achieve the effect of protecting the environment.

[0009] The technical solutions adopted in this utility are as follows:

[0010] A heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven comprises an oven, wherein the oven is a cubic structure, a hollow heat-conducting cavity for conducting heat is arranged on the oven frame, heat-conducting fins are arranged on the four inner walls of the oven, a burner body and a combustion chamber are arranged on the top of the oven, a flamethrower located inside the combustion chamber is arranged on the burner body, an air induced draft component connected thereto is arranged on the top of the combustion chamber, and an air guide pipe connected thereto and located inside the hollow heat-conducting cavity is arranged at the bottom of the combustion chamber, an exhaust pipe is arranged at the bottom of the oven, an air inlet of the exhaust pipe is located inside the hollow heat-conducting cavity, the exhaust pipe is connected to a gas purification component through a conduit, and the purification component is connected to the air induced draft component through a guide pipe.

[0011] Furthermore, the oven comprises an outer frame and an inner frame, and the heat conducting fins are arranged on the inner frame.

[0012] Furthermore, the purification component includes a purification box connected to the conduit, and three activated carbon filter plates are arranged inside the purification box.

[0013] Furthermore, the purification box is provided with an opening and closing door.

[0014] Furthermore, the induced draft assembly includes a hollow shell connected to the combustion chamber, a bracket is provided inside the hollow shell, a motor is provided on the bracket, and a fan blade is installed at the output end of the motor.

[0015] Furthermore, a dust filtering plate is arranged on the top of the hollow shell.

[0016] The technical effects achieved by this utility model are:

[0017] 1. The gas enters the combustion chamber through the induced draft component, and then the burner body sprays flames to heat the incoming air with the water sprayer, so that the air has a high heat. Then, due to the power of the induced draft component, the gas with a high heat enters the hollow heat conduction cavity on the oven through the air duct. Since the oven is a cube structure, the gas received by the upper, lower, left and right hollow heat conduction cavities is the same. Then, when the gas flows, the heat on it is transferred to the heat conduction fins for absorption, and then the heat is filled in the oven. At the same time, the heat is evenly distributed, so that the drying effect is uniform and improved.

[0018] 2. At this time, due to the power of the induced draft component, the gas enters the gas purification component through the exhaust pipe to purify the intake air. After purification, the warm air is driven to enter the induced draft component again for recycling, thereby achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 It is a front view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the purification box of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the air induction component of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Oven; 2. Hollow heat-conducting cavity; 3. Heat-conducting fins; 4. Burner body; 5. Combustion chamber; 6. Flamethrower; 7. Air duct; 8. Exhaust pipe; 9. Flow duct; 10. Outer frame; 11. Inner frame; 12. Purification box; 13. Activated carbon filter plate; 14. Hollow shell; 15. Motor; 16. Fan blades. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0026] like Figure 1-4 As shown, the technical solution adopted by the present invention is specifically as follows: a heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spraying oven 1, comprising an oven 1, the oven 1 being a cubic structure, a hollow heat-conducting cavity 2 for heat conduction is arranged on the frame of the oven 1, heat-conducting fins 3 are arranged on the four inner walls of the oven 1, and a burner body 4 and a combustion chamber 5 are arranged on the top of the oven 1, a flamethrower 6 located inside the combustion chamber 5 is arranged on the burner body 4, an air induced draft component connected thereto is arranged on the top of the combustion chamber 5, and an air guide pipe 7 connected thereto and located inside the hollow heat-conducting cavity 2 is arranged at the bottom of the combustion chamber 5, an exhaust pipe 8 is arranged at the bottom of the oven 1, an air inlet of the exhaust pipe 8 is located inside the hollow heat-conducting cavity 2, and the exhaust pipe 8 is connected to the gas purification component through a conduit, and the purification component is connected to the air induced draft component through a guide pipe 9.

[0027] Its working principle is as follows: first, the gas enters the combustion chamber 5 through the induced draft component, and then the flame is ejected through the burner body 4 to make the water sprayer heat the incoming air, so that the air has a very high heat, and then due to the power of the induced draft component, the gas with a very high heat enters the hollow heat conduction cavity 2 on the oven 1 through the air guide pipe 7. Since the oven 1 is a cubic structure, the gas received by the upper, lower, left and right hollow heat conduction cavities 2 is the same, and then when the gas flows, the heat on it is transferred to the heat conduction fins 3 for absorption, and then the heat is filled in the oven 1. At the same time, the heat is evenly distributed, so that the drying effect is uniform and the drying effect is improved. At the same time, since the burner produces harmful gases when burning the air, if these gases are directly discharged, they will pollute the air or endanger human health. At this time, due to the power of the induced draft component, the gas enters the gas purification component through the exhaust pipe 8 to purify the intake air, and after purification, the temperature air is driven to enter the induced draft component again for recycling, thereby achieving energy saving. The device can not only make the heat distribution uniform and improve the drying effect, but also purify the gas to achieve the effect of protecting the environment.

[0028] The oven 1 includes an outer frame 10 and an inner frame 11, and the inner frame 11 is provided with heat-conducting fins 3, wherein the inner frame 11 is made of a heat-absorbing material, such as ceramic, and the outer frame 10 is made of a heat-insulating material, such as glass fiber, asbestos, rock wool, silicate, etc. This arrangement enables the heat of the gas inside the hollow heat-conducting cavity 2 to be absorbed by the inner frame 11, and then transferred to the heat-conducting fins 3, while the outer frame 10 can prevent heat loss, thereby achieving a heat-insulating effect.

[0029] The heat-conducting fins 3 are evenly distributed on the inner frame 11, so that when heat enters the interior of the oven 1, the heat can be evenly distributed, thereby making the drying effect uniform and improving the drying effect.

[0030] It should be noted that: when drying the sprayed object, the feed inlet and the discharge port of the oven 1 are both provided with sealing doors (not shown in the figure), and the sealing doors can prevent heat leakage during drying.

[0031] The burner body 4 is a liquefied gas burner, which is a combustion device that uses liquefied petroleum gas (LPG) as fuel. Its working principle is generally as follows:

[0032] 1. Fuel supply: Liquefied gas is supplied to the burner through pipelines or tanks.

[0033] 2. Ignition: The ignition device in the burner will generate sparks to ignite the liquefied gas.

[0034] 3. Air supply: Combustion requires oxygen. Air enters the burner through the air inlet and mixes with the liquefied gas.

[0035] 4. Combustion: After the liquefied gas is mixed with air, it burns in the combustion chamber 5 to produce a high-temperature flame.

[0036] 5. Heat transfer: The heat generated by combustion is transferred to the object to be heated through the heat transfer components of the burner (such as the heat exchanger or the combustion chamber 5 itself).

[0037] 6. Control system: The burner is usually equipped with a control system to adjust parameters such as fuel supply, air flow, combustion temperature, etc. to achieve safe and efficient combustion.

[0038] In order to allow the hot gas to enter quickly, multiple groups of air ducts 7 can be set at the bottom of the combustion chamber 5, so that the pressure distribution can be uniform, the pressure can be reduced, and the gas can stay in the hollow heat conduction cavity 2 for a long time, thereby improving the heat extraction effect.

[0039] like Figure 3 As shown, the purification component includes a purification box 12 connected to the conduit, and three activated carbon filter plates 13 are arranged inside the purification box 12. The activated carbon filter plates 13 can remove sulfur oxides, nitrogen oxides and other harmful components in the exhaust gas, thereby improving the effect of gas purification.

[0040] It should be noted that the three activated carbon filter plates 13 are detachably connected to the purification box 12 , and this connection method is a snap connection or a bolt connection, which facilitates the removal and installation of the activated carbon filter plates 13 .

[0041] In order to facilitate the removal of the activated carbon filter plate 13, an opening and closing door is provided on the purification box 12. The purification box 12 is opened through the opening and closing door so that the activated carbon filter plate 13 can be removed for cleaning.

[0042] like Figure 4 As shown, the induced draft assembly includes a hollow shell 14 connected to the combustion chamber 5 , a bracket is arranged inside the hollow shell 14 , a motor 15 is arranged on the bracket, and a fan blade 16 is installed at the output end of the motor 15 .

[0043] The fan blades 16 are driven to rotate by the motor 15 so that the external air enters the combustion chamber 5 for combustion.

[0044] A dust filter plate is disposed on the top of the hollow shell 14, and the dust filter plate can prevent dust particles in the air from entering.

[0045] The working principle of the utility model is as follows: firstly, the gas is allowed to enter the combustion chamber 5 through the induced draft component, and then the flame is ejected through the burner body 4 so that the water sprayer heats the incoming air, so that the air has a very high heat, and then due to the power of the induced draft component, the gas with a very high heat enters the hollow heat conduction cavity 2 on the oven 1 through the air guide pipe 7. Since the oven 1 is a cubic structure, the gas received by the upper, lower, left and right hollow heat conduction cavities 2 is the same, and then when the gas flows, the heat on it is transferred to the heat conduction fins 3 for absorption, and then the heat is filled in the oven 1 for carrying out, and at the same time, the heat is evenly distributed, so that the drying effect is uniform and the drying effect is improved. At the same time, since the burner will produce harmful gases when burning the air, if these gases are directly discharged, they will pollute the air or endanger human health. At this time, due to the power of the induced draft component, the gas enters the gas purification component through the exhaust pipe 8 to purify the intake air, and after purification, the temperature air is driven to enter the induced draft component again for recycling, thereby achieving the effect of energy saving. The device can not only make the heat distribution uniform and improve the drying effect, but also purify the gas to achieve the effect of protecting the environment.

[0046] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven, comprising an oven (1), Features: The oven (1) is a cubic structure. A hollow heat-conducting cavity (2) for conducting heat is arranged on the frame of the oven (1). Heat-conducting fins (3) are arranged on the four inner walls of the oven (1). A burner body (4) and a combustion chamber (5) are arranged on the top of the oven (1). A flamethrower (6) located inside the combustion chamber (5) is arranged on the burner body (4). An air induction component connected thereto is arranged on the top of the combustion chamber (5). An air guide pipe (7) connected thereto and located inside the hollow heat-conducting cavity (2) is arranged at the bottom of the combustion chamber (5). An exhaust pipe (8) is arranged at the bottom of the oven (1). An air inlet of the exhaust pipe (8) is located inside the hollow heat-conducting cavity (2). The exhaust pipe (8) is connected to a gas purification component through a conduit. A guide pipe (9) is arranged on the purification component. One end of the guide pipe (9) is connected to the air induction component.

2. According to claim 1, a heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven, Features: The oven (1) comprises an outer frame (10) and an inner frame (11), and the heat-conducting fins (3) are arranged on the inner frame (11).

3. According to claim 1, a heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven, Features: The purification component comprises a purification box (12) connected to the conduit, and three activated carbon filter plates (13) are arranged inside the purification box (12).

4. According to claim 3, a heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven, Features: The purification box (12) is provided with an opening and closing door.

5. According to claim 1, a heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven, Features: The air induction assembly comprises a hollow shell (14) connected to the combustion chamber (5), a bracket is arranged inside the hollow shell (14), a motor (15) is arranged on the bracket, and a fan blade (16) is installed at the output end of the motor (15).

6. According to claim 5, a heat exchange device for a liquefied gas burner for an energy-saving and environmentally friendly electrostatic spray oven, Features: A dust filtering plate is arranged on the top of the hollow shell (14).

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