Fireproof chimney of firewood stove

Abstract

The firewood stove spark-proof chimney comprises a chimney body, a spark separation net, a fire observation window and the like, the chimney body is a square pipe with four faces A, B, C and D. The spark separation net is a rectangular net plate, the width size of the spark separation net is just large, the spark separation net is installed in the square pipe of the chimney body at an inclined angle, and the length of the spark separation net is two to three times of the caliber of the square pipe of the chimney body. The upper end of the spark separation net is welded or fixedly installed on the upper portion of the inner face of the pipe face A through screws at a large inclination angle, and the lower end of the spark separation net is welded or fixedly installed on the lower portion of the inner face of the pipe face C. A rectangular fire observation window is formed in the pipe face C, and fire observation glass is installed on the rectangular fire observation window. When the firewood stove ignites and combusts, flame smoke sparks can be combusted more completely after being combusted, mixed and shunted through the spark separation net, the diameter of the sparks passing through the spark separation net is smaller than 2 mm, and a tent and personnel cannot be scalded.

Description

TECHNICAL FIELD

[0001] The firewood stove spark-proof chimney of the utility model relates to the technical field of separating sparks discharged from a chimney during combustion of a firewood stove. BACKGROUND

[0002] The existing firewood stove directly discharges smoke from a chimney, and sparks are directly discharged from the chimney. The higher the chimney, the greater the suction force, which results in greater discharged sparks. Not only can the sparks easily cause outdoor fires, but also can scald personnel. The biggest pain point is that when the firewood stove is used in a tent, the sparks can scald the tent and cause numerous small holes. In severe cases, the tent can be ignited, which threatens personal safety and causes property loss. CONTENT OF THE UTILITY MODEL

[0003] To solve the above problems, the utility model provides a firewood stove spark-proof chimney. A spark separation net is arranged in the chimney to separate sparks, thereby solving the pain points in the background art. The spark separation net is a rectangular metal net with an area two to three times greater than the area of the chimney opening and a width that can be placed in the main body square tube of the chimney. The spark separation net is arranged in the main body square tube of the chimney at a large inclination angle. The spark separation net arranged at the large inclination angle is beneficial to the screening of sparks at the large inclination angle under the action of the suction force and the inertial force of the chimney. The small sparks are discharged from the chimney opening and automatically extinguished within one meter. The large sparks are left in the chimney for further burning and decomposition until the diameter is less than 2 mm. When the firewood stove is ignited, the chimney is heated to generate a suction force. The sparks enter the chimney along with the flame. The hot flue gas of the flame passes through the spark separation net and is discharged from the chimney. The large particles of sparks are blocked in the spark separation net at the large inclination angle and are guided to the top end of the spark separation net by the suction force and the inertial force. The sparks continue to burn and decompose until the diameter is less than 2 mm, and then pass through the spark separation net and are discharged from the chimney opening. The spark separation net does not hinder the smoothness of the chimney, and ensures the normal combustion of the firewood stove.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions

[0005] As a preferred scheme, the utility model provides a kind of firewood stove spark-proof chimney, it is characterized in that, wrap up chimney main part, spark separation net, fire glass window, the spark separation net is a rectangular net board, width size just big inclination angle is installed in the chimney main part square tube, length is two to three times of the caliber of chimney main part square tube, the chimney main part square tube is A.B.C.D four pipe surfaces respectively, the upper end of spark separation net is welded or fixed with wire in the upper portion of the inner face of A pipe surface with big inclination angle, the lower end of spark separation net is welded or fixed with wire in the lower portion of the inner face of C pipe surface, rectangular fire window is opened in C pipe surface, wire hole is opened in the pipe surface board of the upper and lower ends of fire window, the upper end tube mouth of chimney main part square tube 5 centimeters is connecting portion, and the lower end tube mouth 5 centimeters is forced to form the shrinkage tube insertion portion of shrinkage tube.

[0006] As a preferred scheme: the fire window is rectangular after rectangular fire window is opened in the upper portion of the part of spark separation net welded or fixed with wire in the lower portion of C pipe surface, and fire glass is installed by window frame, the window frame is a steel plate, and the periphery is folded to form the component of glass plate, and installation hole is provided on the upper and lower end folded plate of window frame.

[0007] In the above scheme, the spark separation net is a rectangular net board, and the long strip net hole is 1 to 3 millimeters in diameter, and the width is just big inclination angle and is installed in the spark separation chimney main part square tube, and the length is greater than or equal to two times of the width of spark separation chimney main part square tube, the spark separation chimney main part square tube is divided into A, B, C, D four pipe surfaces, the upper end of spark separation net is welded or screwed in the upper portion of A pipe surface, and the lower end of spark separation net is welded or screwed in the lower portion of C pipe surface, and the spark separation net is installed in the form of big inclination angle, in order to observe fire, fire window is opened in C pipe surface, and the flame combustion is more complete after the flame smoke gas passes through the fine combing, mixing and shunting of spark separation net in the upper portion of C pipe surface, and the carbon content of smoke gas is lower, and the fire glass is not easy to blacken, so that better visual observation of fire experience is obtained.

[0008] Compared with prior art, the utility model spark-proof chimney has the following beneficial effects:

[0009] The chimney of the wood stove with the Mars separation net installed at a large inclination angle separates the possibility of large Mars discharging from the chimney, the wood stove is ignited and burns, and the suction force generated by the chimney and inertia screen the Mars with a diameter exceeding two millimeters on the Mars separation net at a large inclination angle, and the Mars inside the Mars separation net continues to be burnt and decomposed into ashes or small Mars by high-temperature flame, the Mars with a diameter less than 2 millimeters is discharged from the chimney and is extinguished within a distance of not more than one meter, and cannot cause burns to the tent and personnel and cannot cause a fire to occur, in addition, the wood stove is ignited and burns, and the flue gas, flame, carbon particles, oxygen and other mixed combustibles in the chimney pass through the fine comb of the mesh of the Mars separation net, the flame after mixing and shunting burns more completely, the temperature is higher, fuel is more saved, the carbon content of the flue gas is lower, the fire observation glass is not easy to be smoked black, and a better visual fire observation experience is obtained. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is a schematic view of a chimney main body structure of the utility model

[0011] Fig. 2 It is a side view of a chimney main body of the utility model

[0012] Fig. 3 It is a front view of a chimney main body of the utility model

[0013] Fig. 4 It is a schematic view of a window frame body structure of the utility model

[0014] Fig. 5 It is a schematic view of a Mars separation net of the utility model

[0015] Fig. 6 It is a schematic view of a wood stove body structure of the utility model

[0016] Explanation of the drawings:

[0017] 1, chimney main body, 2, pipe insertion part, 3, connecting part, 4, fire observation window, 5, fire observation window, 6, window frame body, 7, mounting hole, 8, stud hole, 9, fire observation glass, 10, Mars separation net, 11, stove body DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Please refer to Figs. 1 to 6The utility model discloses an embodiment proposes a kind of firewood stove spark-proof chimney, including chimney main body 1, the chimney main body 1 is hollow square tube, its lower end pipe orifice five centimeters forced shrink tube, is shrinked tube plug-in part 2, plug-in stove body 11 or another chimney component connection part 3, the connection part 3 plug-in connects another section chimney extension heightens chimney to the height required, the chimney main body 1 has A, B, C, D four pipe faces, wherein C pipe face opens a rectangular fire window 4, the corresponding window frame body 6 on the upper and lower ends C pipe face on fire window 4 is equipped with the mounting hole 7 hole position on pipe plate, and the corresponding mounting lag screw hole 8 is set up on the upper and lower ends C pipe face after opening fire window 4, and C pipe face window four around after opening fire window 4 is left with strip frame plate, the left strip frame plate is fitted with window frame body 6 to fit and install fire glass 9, the glass window frame body 6 is four around folding edge, and the folding edge plate on two narrow ends is equipped with mounting hole 7, is the mounting hole 7 for the fixed installation of fire glass 9 and window frame body 6 on chimney main body 1, the spark separation net 10 is a rectangular net plate, and long strip-shaped mesh is preferably hole type, and hole width is adjusted to one to three millimeters, the upper end of the spark separation net 10 is welded or screwed in the upper portion of the A pipe face in the square tube of the chimney main body 1 with large inclination angle, and the lower end of the spark separation net 10 is welded or screwed on the pipe face below the fire window 4 below the C pipe face lower portion.

[0020] As a preferred solution, the utility model provides a kind of firewood stove spark-proof chimney, it is characterized in that, package chimney main body 1, spark separation net 10, fire glass window, the spark separation net 10 is a rectangular net plate, and width size is just installed in the square tube of the chimney main body 1 with large inclination angle, and length is two to three times of the caliber of the square tube of the chimney main body 1, the square tube of the chimney main body 1 is respectively A.B.C.D four pipe faces, the upper end of the spark separation net 10 is welded or fixedly installed with lag screw in the upper portion of the inner face of the A pipe face with large inclination angle, and the lower end of the spark separation net 10 is welded or fixedly installed with lag screw in the lower portion of the inner face of the C pipe face, rectangular fire window 4 is set up on C pipe face, lag screw hole 8 is set up on the pipe face plate on the upper and lower ends of fire window 4, and the upper end pipe orifice of the square tube of the chimney main body 1 is 5 centimeters connection part, and the lower end pipe orifice is 5 centimeters forced shrink tube and forms shrinked tube plug-in part 2.

[0021] As a preferred solution: the fire window 4 is set up after rectangular fire window 4 on the upper portion of the spark separation net 10 part welded or fixed with lag screw in the lower portion of C pipe face, and fire glass 9 is installed through window frame body 6, the window frame body 6 is a steel plate that sets up fire window 5, and four around folding edge forms the component of glass plate holding, and mounting hole 7 is equipped on the upper and lower ends folding edge plate of window frame body 6.

[0022] In the above scheme, the Mars separation net 10 is a rectangular net plate, a long strip-shaped net hole, a net hole diameter of 1 to 3 mm, a width just greater than the installation of a large inclination angle in the Mars separation chimney main body 1 square tube, the length is greater than or equal to twice the width of the Mars separation chimney main body 1 square tube, the Mars separation chimney main body 1 square tube is divided into A, B, C, D four tube faces, the upper end of the Mars separation net 10 is welded or screwed in the upper part of the A tube face, the lower end of the Mars separation net 10 is welded or screwed in the lower part of the C tube face, and the Mars separation net 10 is installed in the form of a large inclination angle. In order to observe the fire, a fire observation window 4 is opened in the C tube face, and the flame after the flame smoke gas passes through the Mars separation net 10 in the space above the C tube face is mixed, separated and burned more completely, the smoke gas carbon content is lower, the observation glass 9 is not easy to blacken, and a better visual observation experience is obtained.

[0023] The working principle of the firewood stove anti-mars chimney provided by the embodiment is as follows: the reduced pipe insertion part 2 of the chimney main body 1 is inserted on the stove body 11, the connection part 3 at the upper end is inserted and connected with another extended and raised chimney, until the required height of the assembled chimney is reached, the Mars separation net 10 divides the chimney main body 1 into two parts, under the action of the chimney suction force and the inertial force, the Mars separation net 10 at a large inclination angle, the small Mars with a diameter less than 2 mm passes through the Mars separation net 10 and is discharged from the chimney outlet not more than one meter, and is extinguished, which will not scald the tent, personnel and cause fire, the safety and reliability are improved, and the Mars with a diameter greater than 2 mm is continuously burned and decomposed in the space in the Mars separation net 10 to a diameter less than 2 mm, and then discharged from the chimney not more than one meter, and the heat energy is consumed, which will not cause substantial damage to the tent and personnel.

[0024] 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 deformations can be made to these embodiments without departing from the principles and spirits of the utility model, and all belong to the protection scope of the utility model.

Claims

1. A spark resistant chimney for a wood burning stove, characterised in that, The chimney body is provided with a spark separation net which is a rectangular net plate, the width dimension is just larger than the installation inclined angle in the chimney body square tube, the length is two to three times of the chimney body square tube caliber, the chimney body square tube is respectively A, B, C, D four tube surfaces, the upper end of the spark separation net is welded or fixedly installed by a wire in the upper part of the A tube surface inner face with a large installation inclined angle, the lower end of the spark separation net is welded or fixedly installed by a wire in the lower part of the C tube surface inner face, the C tube surface is provided with a rectangular fire observation window, the upper and lower ends of the fire observation window are provided with wire holes, the upper end of the chimney body square tube is a connecting part with a 5 cm tube opening, the lower end of the chimney body square tube is a shrinkage tube insertion part with a 5 cm forced shrinkage tube.

2. The spark-resistant chimney for a wood-burning fire pit of claim 1, wherein: The fire observation window is a rectangular fire observation window which is provided in the upper part of the spark separation net part welded or fixedly installed by a wire in the lower part of the C tube surface, the fire observation glass is installed through the window frame body, the window frame body is a steel plate provided with a fire observation window, the periphery is folded to form a component for containing the glass plate, and the upper and lower ends of the window frame body are provided with installation holes.

Images