Combustion chamber for cold fog machine

Abstract

The utility model discloses a combustion chamber for a cold fog machine, which comprises a combustion chamber, the combustion chamber comprises a combustion tube positioned at the upper part, the combustion tube comprises an oil tube positioned at the top, an air guide bent tube is formed on the outer wall of the combustion tube, and an included angle is formed between the air guide bent tube and the combustion tube; the fixed bracket is positioned between the combustion tail pipe and the combustion pipe; the combustion tail pipe is located on the lower portion and provided with a downward opening, a fire blocking ring is arranged on the side, close to the fixing support, in the combustion tail pipe, and a spiral coil pipe is inserted into the combustion tail pipe in a matched mode; the heating wire is located above the fire blocking ring and arranged on a supporting rod in a sleeving mode, and the supporting rod is transversely arranged in the combustion chamber and connected with the combustion chamber in a fastened mode. The air guide elbow is arranged on the outer wall of the combustion chamber, so that air generated by the fan forms rotating airflow through the air guide elbow, the airflow exhaust direction is changed, the heating wire is arranged, once fire is cut off, the combustion chamber is immediately recombusted, and therefore continuous combustion in the combustion chamber can be guaranteed.

Description

Technical Field

[0001] This utility model relates to a combustion chamber, and more particularly to a combustion chamber for a cold fog smoke machine. Background Technology

[0002] Cold fogging machines are agricultural and forestry plant protection machinery widely used for pest control, disinfection, sterilization, and fertilization. They have good penetration and diffusion properties and are being promoted and applied in modern agriculture.

[0003] Currently, the combustion chamber used in cold fog machines has an incorrect air intake direction due to its own structure, which causes flame fluctuations and is prone to sudden flameout or interruption, thus affecting the spraying effect. In addition, once the flame is interrupted, it goes out directly and needs to be re-ignited, causing inconvenience and affecting the effect.

[0004] Therefore, it is necessary to design a new type of combustion chamber for cold fog smoke machines to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the shortcomings of the aforementioned technologies, this invention provides a combustion chamber for a cold fog smoke generator.

[0006] To solve the above technical problems, the technical solution adopted by this utility model is: a combustion chamber for a cold fog smoke generator, comprising a combustion chamber, the combustion chamber including:

[0007] The combustion tube located at the top includes an oil pipe at the top, and an air guide bend is formed on the outer wall of the combustion tube;

[0008] A fixed bracket located between the combustion tailpipe and the combustion pipe;

[0009] The combustion tailpipe is located at the bottom and opens downwards. A flame baffle is installed on the side of the combustion tailpipe near the fixed support. A spiral coil is inserted into the combustion tailpipe.

[0010] The heating wire is located above the fire baffle ring and is sleeved on the support rod. The support rod is horizontally positioned in the combustion chamber and is securely connected to it.

[0011] Preferably, both ends of the support rod are welded to the inner wall of the combustion chamber.

[0012] Preferably, the air guide bend and the combustion pipe form an angle of 30°-60°, the diameter of the spiral coil gradually increases from the top to the bottom, and a fire baffle is provided at the top of the spiral coil.

[0013] Preferably, the spiral coil is formed by spiraling a spiral tube. One end of the spiral tube extends from the bottom to the top of the spiral coil and extends outward through the interior of the spiral coil to form an outlet tube. The other end extends upward from the top of the spiral coil and then bends to form an inlet conduit for the additive.

[0014] Preferably, the fire baffle assembly includes a first fire baffle plate, a first fire baffle ring, a second fire baffle plate, and a second fire baffle ring arranged sequentially from bottom to top. The first fire baffle plate is inserted into the spiral coil, and the first and second fire baffle rings are concentric rings. The diameter of the second fire baffle plate is equal to the inner diameter of the first fire baffle ring.

[0015] Preferably, the center of the No. 1 fire baffle is provided with a circular hole, and the No. 2 fire baffle is provided with No. 1 hole and No. 2 hole at intervals along the diameter direction. The air outlet pipe passes through the circular hole and No. 1 hole in sequence, and the inlet conduit passes through No. 2 hole.

[0016] Preferably, a first support plate is symmetrically arranged between the first fire baffle ring and the second fire baffle plate, and a second support plate is symmetrically arranged between the second fire baffle plate and the second fire baffle ring, with the first support plate and the second support plate arranged in a cross shape.

[0017] Preferably, the outer wall of the second fire-blocking ring is symmetrically provided with fixing plates, and each fixing plate is provided with a circular hole.

[0018] Preferably, the bottom of the spiral coil is in contact with the fire baffle ring, and the spiral coil is detachably connected to the combustion tailpipe by bolts.

[0019] Preferably, the combustion tailpipe has symmetrical fixing holes on the outer wall of the end, and the combustion tailpipe is connected to the circular hole bolt on the second fire baffle ring through the fixing holes.

[0020] This invention features a guide pipe on the outer wall of the combustion chamber, allowing the air generated by the fan to rotate through the pipe, changing the airflow direction and causing the flame to rotate and flow in a specific direction within the combustion chamber. This, combined with the spiral coil in the combustion tailpipe, creates a spiral combustion effect within the combustion chamber, preventing flame fluctuations, sudden flameout, and wasted flame, thus improving thermal efficiency and ensuring a proper spray effect. Furthermore, by installing a heating wire within the combustion chamber, in the event of flameout, the heating wire remains lit immediately, and the oil supply from the pipes and fan continues, allowing for immediate reignition and ensuring continuous combustion within the combustion chamber, thereby enhancing the overall performance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the combustion chamber.

[0023] Figure 3 for Figure 2 A schematic diagram of the structure from below.

[0024] Figure 4 This is a schematic diagram of the connection structure of the heating wire.

[0025] Figure 5 This is a schematic diagram of the spiral coil structure.

[0026] In the diagram: 1. Combustion tube; 2. Combustion tailpipe; 3. Fixed bracket; 4. Spiral coil; 5. Gas outlet pipe; 6. Inlet duct; 7. Heating wire; 8. Support rod; 10. Combustion chamber; 11. Oil pipe; 12. Air guide bend; 21. Fire baffle ring; 22. Fixing hole; 41. No. 1 fire baffle plate; 42. No. 1 fire baffle ring; 43. No. 2 fire baffle plate; 44. No. 2 fire baffle ring; 45. First support plate; 46. Second support plate; 47. Fixing plate. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] like Figure 1 The combustion chamber shown is for a cold fog generator, including a combustion chamber 10, which comprises:

[0030] like Figure 2 As shown, the combustion tube 1 located at the top includes an oil pipe 11 located at the top. Oil is added into the combustion tube through the oil pipe, and ignition is performed inside the combustion tube by an ignition needle, thereby generating a combustion flame.

[0031] An air guide bend 12 is formed on the outer wall of the combustion tube 1, and an angle of 30°-60° is formed between the air guide bend 12 and the combustion tube. By setting the angle, the airflow blown into the combustion tube by the fan is made to fit more closely to its inner wall, forming a rotating airflow.

[0032] By setting up a guide bend, the air brought by the fan enters the combustion tailpipe through the guide bend, generating a rotating airflow. This changes the direction of the airflow discharge. In conjunction with the spiral coil, the flame forms a rotating flame flowing in a certain direction in the combustion chamber, creating a spiral combustion in the combustion tailpipe. This makes the flame burn more completely, avoids flame waste, prevents flameout and other phenomena, improves the combustion efficiency of the flame, and ensures the final spray effect.

[0033] A fixed bracket 3 is located between the combustion tailpipe 2 and the combustion pipe 1; the fixed bracket is used to connect with the outer casing of the cold fog generator.

[0034] The combustion tailpipe 2 is located at the bottom and opens downwards. A flame baffle ring 21 is installed inside the combustion tailpipe 2 near the fixed support, and a spiral coil 4 is inserted inside the combustion tailpipe 2. By setting the flame baffle ring, the flame is blocked, preventing the flame from being directly ejected from the end of the combustion tailpipe, so that the flame can burn more completely.

[0035] To ensure continuous combustion of the flame within the combustion chamber, the heating wire 7 located above the flame shield 21, such as... Figure 3 , Figure 4 As shown, the heating wire 7 is mounted on the support rod 8, which is horizontally positioned within the combustion chamber 10 and securely connected thereto. Preferably, both ends of the support rod 8 are welded to the inner wall of the combustion chamber.

[0036] By installing a heating wire above the flame shield, a combustion flame is generated in the combustion chamber after ignition, causing the heating wire to burn as well. When the flame is interrupted after a period of operation, the heating wire is still burning at the moment of flame interruption, and the oil pipe and fan are still working. Therefore, after the flame is interrupted, the mixed gas comes into contact with the heating wire, causing the combustion chamber to reignite immediately. By installing the heating wire, the combustion chamber is guaranteed to remain in a state of combustion, ensuring that the smoke generator can work continuously.

[0037] like Figure 5 As shown, the diameter of the spiral coil 4 gradually increases from top to bottom, and a fire-blocking component is installed at the top of the spiral coil 4. By setting the spiral coil, spiral combustion is generated, and it can also block the flame, making the flame burn more completely and the combustion temperature higher. This provides higher pressure for subsequent spraying, increases the flow rate and pressure, and makes the spray distance longer.

[0038] Example 2

[0039] In this embodiment, the spiral coil 4 is formed by spiraling a spiral tube. One end of the spiral tube extends from the bottom to the top of the spiral coil and extends outward through the interior of the spiral coil 4 to form an air outlet tube 5. The other end extends upward from the top of the spiral coil and then bends to form an auxiliary agent inlet conduit 6.

[0040] Additives are added into the inlet duct, and the spiral coil is heated in the combustion tailpipe, which causes the additives to generate a high-pressure airflow and be discharged from the outlet pipe. This high-pressure airflow, together with the liquid medicine, is sprayed out from the nozzle of the cold fog machine to achieve a spraying effect (the spraying principle is existing technology and will not be described in detail here).

[0041] Preferably, the fire baffle assembly includes a first fire baffle plate 41, a first fire baffle ring 42, a second fire baffle plate 43, and a second fire baffle ring 44 arranged sequentially from bottom to top. The first fire baffle plate 41 is inserted into the spiral coil 4. The first fire baffle ring 42 and the second fire baffle ring 44 are concentric rings. The diameter of the second fire baffle plate 43 is equal to the inner diameter of the first fire baffle ring 42.

[0042] By setting up fire-blocking components in conjunction with fire-blocking rings, multiple layers of obstruction are provided for the flame, preventing the flame from being directly ejected from the combustion tailpipe. This ensures that the flame burns more completely within the combustion tailpipe, resulting in higher combustion temperatures, better vaporization, higher pressure of the high-pressure airflow, greater flow velocity and pressure, and a longer spray distance for the liquid.

[0043] Furthermore, the first fire baffle plate 41 has a circular hole in its center, and the second fire baffle plate 43 has holes No. 1 and No. 2 spaced apart along its diameter. The exhaust pipe 5 passes through the circular hole and the first hole in sequence, and the inlet conduit 6 passes through the second hole. The additive is discharged through the spiral coil and finally through the exhaust pipe. A fire baffle assembly is installed at the top of the spiral coil, so that the flame burns in a spiral manner in the combustion tail tube. The fire baffle assembly blocks the flame, ensuring that it can burn completely in the combustion tail tube, thereby improving thermal efficiency and increasing gasification effect.

[0044] Preferably, a first support plate 45 is symmetrically arranged between the first fire baffle ring 42 and the second fire baffle plate 43, and a second support plate 46 is symmetrically arranged between the second fire baffle plate 43 and the second fire baffle ring 44, with the first support plate 45 and the second support plate 46 arranged in a cross shape.

[0045] By setting the fire baffle and fire baffle ring at intervals, the flame in the combustion tailpipe is blocked layer by layer, ensuring that the flame does not spray out directly, improving the combustion effect and making the combustion more complete.

[0046] Furthermore, fixing plates 47 are symmetrically arranged on the outer wall of the second fire baffle ring 44, and each fixing plate 47 has a circular hole. Fixing holes 22 are symmetrically arranged on the outer wall of the end of the combustion tailpipe 2, and the combustion tailpipe 2 is bolted to the circular hole on the second fire baffle ring 44 through the fixing holes 22.

[0047] By setting a fixing plate and fixing holes to fit together, the combustion tailpipe and the spiral coil are tightly connected to ensure combustion effect.

[0048] The bottom of the spiral coil 4 is in contact with the flame deflector ring, and the spiral coil 4 is detachably connected to the combustion tailpipe 2 by bolts. The oil entering from the oil pipe burns in the combustion tailpipe. The flame deflector ring acts as the first layer of obstruction, and the flame is transmitted from the flame deflector ring to the spiral coil, heating the additives inside the spiral coil, causing them to vaporize and generate a high-pressure gas flow, which increases the vaporization effect and thermal efficiency.

[0049] The purpose of this invention is to provide a combustion chamber for a cold fogging machine. By setting a guide bend on the combustion pipe to change the airflow direction, the flame is prevented from directly exiting the combustion chamber. Simultaneously, the wind-blocking component of the spiral coil effectively obstructs the flame within the combustion chamber, resulting in more complete combustion, higher combustion temperature, and higher pressure and velocity of the generated high-pressure airflow. Ultimately, this allows the high-pressure airflow to carry the liquid sprayed a greater distance, improving thermal efficiency. Furthermore, by installing a heating wire within the combustion chamber, even if the flameout occurs after a period of operation, the heating wire remains burning. Therefore, after the flameout, the mixed gas is blown onto the heating wire, allowing combustion to continue within the combustion chamber. By incorporating the heating wire, the combustion chamber is prevented from experiencing flameout or interruption, ensuring the fogging machine remains in a continuous combustion state for sustained operation.

[0050] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A combustion chamber for a cold fog generator, comprising a combustion chamber (10), characterized in that: The combustion chamber (10) includes: The combustion pipe (1) located at the top includes an oil pipe (11) located at the top, and an air guide bend (12) is formed on the outer wall of the combustion pipe (1). A fixed bracket (3) located between the combustion tailpipe (2) and the combustion pipe (1); The combustion tailpipe (2) is located at the bottom and opens downward. A fire baffle (21) is provided on the side of the combustion tailpipe (2) near the fixed support. A spiral coil (4) is inserted into the combustion tailpipe (2). The heating wire (7) is located above the fire baffle ring (21). The heating wire (7) is sleeved on the support rod (8). The support rod (8) is horizontally arranged in the combustion chamber (10) and is fastened to it.

2. The combustion chamber for a cold fog generator according to claim 1, characterized in that: The two ends of the support rod (8) are welded to the inner wall of the combustion chamber.

3. The combustion chamber for a cold fog generator according to claim 1, characterized in that: The air guide bend (12) forms an angle of 30°-60° with the combustion tube, the diameter of the spiral coil (4) gradually increases from the top to the bottom, and a fire baffle is provided at the top of the spiral coil (4).

4. The combustion chamber for a cold fog generator according to claim 3, characterized in that: The spiral coil (4) is formed by spiraling a spiral tube. One end of the spiral tube extends from the bottom of the spiral coil to its top and extends outward through the interior of the spiral coil (4) to form an air outlet tube (5). The other end extends upward from the top of the spiral coil and then bends to form an auxiliary agent inlet conduit (6).

5. The combustion chamber for a cold fog generator according to claim 4, characterized in that: The fire-blocking assembly includes a first fire-blocking plate (41), a first fire-blocking ring (42), a second fire-blocking plate (43), and a second fire-blocking ring (44) arranged sequentially from bottom to top. The first fire-blocking plate (41) is inserted into the spiral coil (4). The first fire-blocking ring (42) and the second fire-blocking ring (44) are concentric rings. The diameter of the second fire-blocking plate (43) is equal to the inner diameter of the first fire-blocking ring (42).

6. The combustion chamber for a cold fog smoke generator according to claim 5, characterized in that: The first fire baffle (41) has a circular hole in the center, and the second fire baffle (43) has a first hole and a second hole spaced apart along the diameter direction. The air outlet pipe (5) passes through the circular hole and the first hole in sequence, and the inlet conduit (6) passes through the second hole.

7. The combustion chamber for a cold fog generator according to claim 5, characterized in that: A first support plate (45) is symmetrically arranged between the first fire baffle ring (42) and the second fire baffle plate (43), and a second support plate (46) is symmetrically arranged between the second fire baffle plate (43) and the second fire baffle ring (44). The first support plate (45) and the second support plate (46) are arranged in a cross shape.

8. The combustion chamber for a cold fog generator according to claim 5, characterized in that: The outer wall of the second fire-blocking ring (44) is symmetrically provided with fixing plates (47), and each fixing plate (47) has a circular hole.

9. The combustion chamber for a cold fog generator according to claim 1, characterized in that: The bottom of the spiral coil (4) is in contact with the fire baffle ring, and the spiral coil (4) is detachably connected to the combustion tailpipe (2) by bolts.

10. The combustion chamber for a cold fog generator according to claim 1, characterized in that: The combustion tailpipe (2) has symmetrical fixing holes (22) on the outer wall of the end. The combustion tailpipe (2) is connected to the circular hole bolt on the second fire baffle ring (44) through the fixing holes (22).

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