CN210801257U - A hand-held wire igniter device - Google Patents

Abstract

The utility model relates to a hand-held linear igniter device, which comprises a gas inlet pipe, an air inlet pipe, a guide sleeve, a base and an air mixing chamber. The sleeve enters the gas mixing chamber, and also includes a slit pipe connected to the gas mixing chamber, a linear slit is formed on the slit pipe, and a plug plate is provided at the end of the slit pipe; A linear free jet flame is generated in the slit. The linear slit is provided with a moving adjustment structure for changing the length of the linear slit. The moving adjustment structure includes a moving plate, an inner gland and an adjusting rod. The cross-section is an arc-shaped strip plate, the moving plate is attached to the inner wall of the slotted pipe, the inner pressure cover is fixed on the inner side of the moving plate, and the adjusting rod is fixedly connected to the moving plate through the linear slit. The utility model has the advantages of simple structure, stable combustion, corrosion resistance and high temperature resistance, and meets the requirements of laboratory ignition under various conditions.

Description

A hand-held wire igniter device

technical field

The utility model relates to an ignition device, in particular to a hand-held wire-type ignition device.

Background technique

At present, most of the igniters sold on the market are spray gun ignition or thermal resistance wire heating ignition. The principle of spray gun ignition is similar to that of the present invention. Specifically, the external gas is mixed with the inhaled air, and the flame is ejected from the ceramic nozzle after the gun muzzle is ignited with electronic pulses. For the ignition test of the sample, the single cylindrical flame is difficult to meet the requirements, and the service life of the spray gun ignition device is short, and the gas needs to be replaced in a short period of time; for the heating and ignition of the thermal resistance wire, it is used for thinner cylindrical samples (such as The ignition of cables, etc.) can achieve better results, but normal ignition cannot be achieved for other common shapes (such as rectangles, etc.), and this ignition method requires stable high voltage.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide a handheld wire type igniter device with adjustable ignition length.

The technical scheme adopted by the utility model to solve the technical problem is: constructing a hand-held linear igniter device, which includes a gas inlet pipe, an air inlet pipe, a guide sleeve, a base and an air mixing chamber, and the base, the gas inlet pipe and the air The inlet pipe is connected, the gas and the air introduced by the gas inlet pipe enter the gas mixing chamber through the guide sleeve, and also include a slit pipe connected with the gas mixing chamber, and a linear slit is formed on the slit pipe. , the end of the slit pipe is provided with a plug plate; during the fuel combustion process, a linear free jet flame is generated from the linear slit, and the linear slit is provided with a moving adjustment structure for changing the length of the linear slit, The moving adjustment structure includes a moving plate, an inner pressure cover and an adjustment rod. The moving plate is a strip-shaped plate with an arc-shaped cross-section. The moving plate is attached to the inner wall of the slit pipe, and the inner pressure cover is fixed on the On the inner side of the moving plate, the adjusting rod is fixedly connected with the moving plate through the linear slit.

In the above solution, a sealing strip is provided between the moving plate and the inner wall of the slotted pipe, and the inner pressure cover is tightly attached to the sealing strip and the moving plate.

In the above solution, a heat insulating jacket is provided on the outer side of one end of the slit pipe close to the gas mixing chamber.

In the above solution, the heat insulating sleeve is provided with a slotted taper end set screw.

In the above solution, the width of the linear slit is 0.5-1.5 mm.

Implementing the hand-held wire igniter device of the present utility model has the following beneficial effects:

1. The utility model has the advantages of simple structure, stable combustion and no tempering, and the outlet flame is the required linear structure.

2. The length of the molding seam can be changed by moving the adjustment structure, thereby changing the ignition length, and the scope of application is wider;

3. The length of the gas pipeline is short, and there is a guide tube in its circulation, and the gas flow resistance is small. The pressure required for gas and air is low, about 1-3kPa can be maintained.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and embodiments, in the accompanying drawings:

Fig. 1 is the structural representation of the hand-held wire igniter device of the present utility model;

Fig. 2 is the front view of movement adjustment structure;

FIG. 3 is a left side view of FIG. 2 .

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIG. 1 , the hand-held linear igniter device of the present invention includes a gas inlet pipe 6 , an air inlet pipe 7 , a guide sleeve 4 , a gas mixing chamber 8 , a base 5 and a slit pipe 2 . The overall structure of the hand-held wire igniter device is made of 304 stainless steel, which is resistant to corrosion and high temperature.

The base 5 is connected with the gas inlet pipe 6 and the air inlet pipe 7 . The air introduced into the gas inlet pipe 6 and the air inlet pipe 7 enters the air mixing chamber 8 through the guide sleeve 4, and the air mixing chamber 8 is connected with the slit pipe 2. The inlet pressure of the gas inlet pipe 6 and the air inlet pipe 7 is relatively low, and can be maintained at about 1-3kPa.

The slit pipe 2 is provided with a linear slit 11 , and the width of the linear slit 11 is 0.5-1.5 mm, which is 1 mm in this embodiment. The gas inlet pipe 6 and the air inlet pipe 7 can be connected to metal conduits, which are suitable for ignition experiments in high temperature environments. Asbestos gaskets are installed at the joints to prevent corrosion and seal. The shape of the slotted tube 2 is cylindrical, and the mixed gas chamber 8 is a tapered shape with a gradually decreasing section, which can increase the gas flow rate and at the same time has a certain ejector function.

The end of the slit pipe 2 is provided with a plug plate 1. During the fuel combustion process, a linear free jet flame is generated from the linear slit 11. The linear slit 11 is provided with a moving adjustment structure for changing the opening length of the linear slit 11. 10. During the combustion of the fuel, a linear free jet flame is generated from the linear slit 11 .

As shown in FIGS. 2-3 , the moving adjustment structure 10 includes a moving plate 12 , an inner pressure cover 14 and an adjusting rod 13 . The moving plate 12 is a strip-shaped plate with an arc cross-section, and the moving plate 12 is attached to the inner wall of the slit pipe 2 . The inner pressure cover 14 is fixed on the inner side of the moving plate 12 , and the adjusting rod 13 is fixedly connected with the moving plate 12 through the linear slit 11 . By pushing the adjusting rod 13 , the moving plate 12 can be driven to move left and right, and the moving plate 12 can block the opening of the slot 11 , thereby adjusting the length of the opening of the linear slot 11 .

Further, a sealing strip 15 is provided between the moving plate 12 and the inner wall of the slotted pipe 2 , and the inner pressure cover 14 is closely attached to the sealing strip 15 and the moving plate 12 . The sealing strip 15 is made of high temperature-resistant modified polyvinyl fluoride material.

Further, a heat insulating sleeve 3 is provided on the outer side of one end of the slit pipe 2 close to the gas mixing chamber 8 . The thermal insulation cover 3 is made of high temperature resistant epoxy resin, which can play a protective effect and prevent burns during use. The heat insulating sleeve 3 is provided with a slotted conical end set screw 9, which can tighten the heat insulating sleeve 3 so as to change the position of the heat insulating sleeve 3 or remove it.

The embodiments of the present utility model have been described above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned specific embodiments, which are only illustrative rather than restrictive, and the common technology in the field Under the inspiration of the present utility model, personnel can make many forms without departing from the scope of protection of the present utility model and the claims, which all belong to the protection of the present utility model.

Claims (5)

1. A hand-held linear igniter device comprises a gas inlet pipe (6), an air inlet pipe (7), a guide sleeve (4), a base (5) and a gas mixing chamber (8), wherein the base (5) is connected with the gas inlet pipe (6) and the air inlet pipe (7), gas introduced from the gas inlet pipe (6) and air introduced from the air inlet pipe (7) enter the gas mixing chamber (8) through the guide sleeve (4), the hand-held linear igniter device is characterized by further comprising a slotted pipe (2) connected with the gas mixing chamber (8), a linear seam (11) is formed in the slotted pipe (2), and a plug plate (1) is arranged at the tail end of the slotted pipe (2); in the fuel combustion process, produce the free jet flame of line type from linear seam (11), be equipped with on linear seam (11) and be used for changing removal regulation structure (10) of linear seam (11) length, remove regulation structure (10) including movable plate (12), interior gland (14) and regulation pole (13), movable plate (12) are the curved bar board of cross section, movable plate (12) and the laminating of slotted pipe (2) inner wall, interior gland (14) are fixed at movable plate (12) inboard, adjust pole (13) and pass linear seam (11) and movable plate (12) fixed connection.

2. The hand-held igniter linear device (12) of claim 1 wherein a seal (15) is disposed between the moving plate (12) and the inner wall of the slotted tube (2), and the inner gland (14) is tightly attached to the seal (15) and the moving plate (12).

3. Hand-held igniter linear device according to claim 1, characterised in that the slotted tube (2) is provided with a heat insulating sleeve (3) on the outside of its end close to the gas mixing chamber (8).

4. A hand-held igniter linear device according to claim 3 wherein the sleeve (3) is provided with a slotted cone set screw (9).

5. The hand-held igniter wireform (11) device according to claim 1 wherein the width of the wireform seam (11) is 0.5-1.5 mm.

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