CN201844399U

CN201844399U - Jet-type burner

Info

Publication number: CN201844399U
Application number: CN2010205979171U
Authority: CN
Inventors: 朴龙范
Original assignee: PIAO LONGFAN
Current assignee: PIAO LONGFAN
Priority date: 2010-11-09
Filing date: 2010-11-09
Publication date: 2011-05-25
Anticipated expiration: 2020-11-09

Abstract

The utility model relates to an jet-type burner comprising an air-collecting pipe, a nozzle, a first air door and a second air door, wherein the air-collecting pipe adopts a hollow cylindrical structure, and at least one through hole is formed in a preset position at the periphery near the bottom of the air-collecting pipe and used for leading in primary air; the nozzle is provided with a cylindrical inner chamber, connected to the bottom of the air-collecting pipe and used for providing cylindrical fuel gas into the air-collecting pipe; the first air door is rotationally arranged at the periphery of the bottom of the air-collecting pipe and surrounds the through hole so as to adjust the supply of the primary air; and the second air door is rotationally arranged at the head part of the air-collecting pipe so as to regulate the supply of secondary air and control flame, and at least one air-resistant ring is arranged in a preset position inside the air-collecting pipe. By adopting the jet-type burner provided by the utility model, the shape and the temperature of the flame can be controlled more accurately and stable flame can be formed. Therefore, the requirement for practicability can be met and potential safety hazards are eliminated.

Description

Injecting combustor

Technical field

The utility model relates to a kind of burner, relates in particular to the burner of various gas-operated thermal bath facilities such as shower nozzle of burner, the blowtorch of a kind of fire row who is applied to Bunsen burner, gas-cooker, gas heater or burner, wall hanging stove.

Background technology

In the laboratory of the laboratory of each institution of higher learning and each research institution, use Bunsen burner to carry out teaching demonstration and heated sample usually.Bunsen burner is bright by this hair tonic of Germanization scholar, is higher than the Alcohol Flame structure owing to its temperature can reach 900 degree is above, and simple in structure, so is widely used.

The city has following feature with pipe natural gas: supply gas pressure is 2000Pa, and calorific value is at 8500Kcal/Nm ³About, proportion has brought bigger difficulty to the burner of making thus much smaller than the proportion of air.And present Bunsen flame form is single, therefore can't satisfy various instructions for uses, and because the phenomenon that flame breaks away from easily takes place, can not fully burn, and has very large potential safety hazard.

The utility model content

The utility model proposes in order to address the above problem, and its purpose is to provide a kind of injecting combustor, with the form that can regulate flame and make flame keep stable.

For the attainment of one's purpose, according to injecting combustor of the present utility model, comprising: discharge, has cylindrical structural, and the inner hollow structure that forms, and be provided with at least one through hole in precalculated position near the outer peripheral face of bottom, to be used to introduce primary air; Nozzle has columniform inner chamber and is connected in the bottom of described discharge, to be used for the providing cylindricality combustion gas in described discharge; First air door is arranged on the bottom periphery of described discharge rotationally, and surrounds described through hole, to be used to regulate the primary air supply; Second air door is arranged at the head of described discharge rotationally, adjusts the SAS Secondary Air Supply amount and controls flame being used to, and wherein, the precalculated position in described discharge is provided with at least one choke circle.

Preferably, described first air door and second air door are provided with the passage of reservation shape.

Preferably, described first air door adopts aluminum to do.

Preferably, described second air door adopts brass to make.

Preferably, the radial section of described choke circle forms one of them in circle, polygon, triangle, square, rectangle, ellipse and the zigzag.

Preferably, the thickness direction cross sectional shape of described choke circle is one of them in rhombus, the trapezoidal and rectangle.

Preferably, described choke circle is arranged at the described discharge of distance bottom 20～80mm part.

Preferably, the aperture of described nozzle chamber is 0.4～1.2mm, and length is 2～12mm.

Preferably, the length of described discharge is 30～100mm, and internal diameter is 5～12mm.

According to the injecting combustor that the utility model provides, the shape of flame can be more accurately controlled, and stable flame can be formed, improve flame temperature, thereby can eliminate safe hidden trouble, satisfy the laboratory instructions for use.

Description of drawings

By the description of carrying out below in conjunction with the accompanying drawing that an example exemplarily is shown, above-mentioned and other purposes of the present utility model and characteristics will become apparent, wherein:

Fig. 1 is the schematic diagram according to injecting combustor of the present utility model;

Fig. 2 is the cutaway view of the discharge of Fig. 1;

Fig. 3 to Fig. 6 is the cutaway view of choke circle.

Main symbol description: 100 is discharge, and 101 is through hole, and 102 is first air door, and 103 is first passage, and 104 is second air door, and 105 is second passage, and 106 is nozzle, and 300 is the first choke circle.

The specific embodiment

Below, be example with the Bunsen burner that uses natural gas, injecting combustor of the present utility model is described.Yet the utility model can be implemented in many different modes, and should not be understood that to be limited to the following examples.In the accompanying drawings, for clarity, exaggerative size is represented, and is used identical label to represent identical parts in the different accompanying drawings.

Fig. 1 is the schematic diagram according to injecting combustor of the present utility model, and Fig. 2 is the cutaway view of the discharge of Fig. 1, and Fig. 3 to Fig. 6 is the cutaway view of choke circle.

As shown in Figure 1, comprise discharge 100, nozzle 106, first air door 102 and second air door 104 according to injecting combustor of the present utility model.

The front end of described nozzle 106 combines with described discharge 100, and the rear end is connected with external fuel flue (not shown), to be used for providing fuel gas to the inside of described discharge 100.Described nozzle 106 can adopt the mode of screw thread combination to be arranged on the bottom of described discharge 100.In the present embodiment, described nozzle 106 has columniform injection inner chamber, and preferably, described inner chamber has the internal diameter of 0.4～1.2mm and the length about 2～12mm, makes described nozzle 106 eject the high velocity air of column thus.Preferably, the making material of described nozzle 106 is a brass.

Described discharge 100 is a cylindrical structural, and the inner hollow structure that forms, be provided with two through holes 101 in its precalculated position near the outer peripheral face of bottom, this through hole 101 is arranged on the outer peripheral face of described discharge symmetrically, to be used for providing primary air, fully mix by this through hole 101 primary air that provides and the fuel gas that ejects by described nozzle 106 (being natural gas in the present embodiment) thus to the inside of discharge 100.Preferably, the length of described discharge is 30～100mm, and internal diameter is 5～12mm.Described first air door 102 can be rotatably set in the periphery of described through hole 101 and surrounds described through hole 101, and possesses corresponding with described through hole 101 and first passage 103 of symmetrical layout.Preferably, the size of described first passage 103 is identical with described through hole 101.Thus, when described first air door 102 makes described first passage 103 and described through hole 101 complete matchings by rotation, the amount that air enters in the discharge 100 is maximum, if continue described first air door 102 of rotation this moment, then described first passage 103 and described through hole 101 are the state of section aligned by the state-transition of complete matching, the air capacity that enters discharge 100 is diminished, when first air door 102 blocks through hole 101 fully, enter into the air capacity approaching zero in the discharge 100.Preferably, described first air door 102 adopts aluminums to do, and operating more easily, and further reduces cost of manufacture.In the present embodiment, the internal diameter of described first air door 102 is slightly larger than the external diameter of described discharge 100, forms assembler's difference and can freely move or rotate thus.And if need more accurately to control the amount that air enters discharge 100 inside, the precalculated position that also can be chosen in the periphery of described discharge 100 is provided with external screw thread, makes described first air door 102 form screw thread with described discharge 100 thus and combines.

Described second air door 104 is arranged on the head of described discharge 100, being used to provide auxiliary air, thereby more fine controls flame.Preferably, described second air door 104 uses the mode of screw thread combination to be arranged at discharge 100.Be formed with second passage 105 on described second air door 104, extraneous air is provided by the mouth of pipe of the gap between this second passage 105 and described second air door 104 and the described discharge 100 by discharge 100 thus.Thus, the mouth of pipe of the described relatively discharge 100 in the end of described second air door 104 further extends.And in order to push down flame and anti-anti-avulsion fire phenomenon, the end of the mouth of pipe of described discharge 100 or described second air door 104 forms the structure of shrinking.Preferably, described second air door 104 adopts brass to make, with near the fire resistance the mouth of pipe that improves discharge 100.

In the utility model, choke circle 300 is set, to be used to adjust air velocity in the inside of described discharge 100.When the air velocity of the combustion gas of being ejected by described nozzle 106 was higher, flame easily broke away from discharge 100 and extinguishes, and therefore, by described choke circle 300 being arranged at the flowing velocity that preposition delays air-flow, and adjusted the height of flame.And, also can adjust the speed of air-flow by the shape that changes described choke circle 300, and form the predetermined air flow form, produce the flame of various forms thus.Preferably, the radial section of described choke circle 300 is one of them in circle, polygon, triangle, square, rectangle, ellipse and the zigzag.And the thickness by adjusting described choke circle 300 and the shape in thickness direction cross section also can reach the purpose of adjusting air velocity.To shown in Figure 6, the thickness direction cross section of described choke circle can form rhombus, trapezoidal or rectangle as Fig. 3.Preferably, the thickness of described choke circle is 0.8～5.2mm.In the present embodiment, the first choke circle 300 is arranged on the position of the bottom 20～80mm of distance set tracheae, thus by adjusting the purpose that the position reaches control flame profile and firepower that is provided with of choke circle 300.Those skilled in the art should know that though be provided with a choke circle in the present embodiment, the choke circle also can be provided with more than two, and the position is set also can freely adjusts according to the application scenario.For example, can set up a choke circle at the head mouth of pipe place of contiguous described discharge 100, more fine to control flame.And described choke circle adopts metal to make, and is installed to the inside of described discharge 100 after it can be made separately, and this moment, discharge 100 inside should be provided for installing the mounting structure of described choke circle.Preferably, described choke circle adopts brass to make.In addition, described choke circle also can machine-shaping simultaneously when making discharge 100.The mode of processing can adopt known methods such as lathe, Digit Control Machine Tool processing or casting, because these all are the technology of using always, therefore omit it at this and specifies.

Though be that example is illustrated with the discharge that is applied to Bunsen burner in the above description, but those skilled in the art should know, can be applied to the fire row of Bunsen burner, gas-cooker, gas heater or burner, the burner of wall hanging stove, the shower nozzle of blowtorch or the like various burners according to discharge of the present utility model.And the utility model is not limited to the foregoing description, under the situation that does not break away from scope of the present utility model, can carry out various changes and modifications.

Claims

1. an injecting combustor is characterized in that, comprising:

Discharge has cylindrical structural, and the inner hollow structure that forms, and is provided with at least one through hole in the precalculated position near the outer peripheral face of bottom, to be used to introduce primary air;

Nozzle has columniform inner chamber and is connected in the bottom of described discharge, to be used for the providing cylindricality combustion gas in described discharge;

First air door is arranged on the bottom periphery of described discharge rotationally, and surrounds described through hole, to be used to regulate the primary air supply;

Second air door is arranged at the head of described discharge rotationally, and adjust the SAS Secondary Air Supply amount and control flame being used to,

Wherein, the precalculated position in described discharge is provided with at least one choke circle.

2. injecting combustor according to claim 1 is characterized in that, described first air door and second air door are provided with the passage of reservation shape.

3. injecting combustor according to claim 1 is characterized in that, described first air door adopts aluminum to do.

4. the discharge of injecting type gas combustion apparatus according to claim 1 is characterized in that, described second air door adopts brass to make.

5. injecting combustor according to claim 1 is characterized in that the radial section of described choke circle forms one of them in circle, polygon, triangle, square, rectangle, ellipse and the zigzag.

6. injecting combustor according to claim 5 is characterized in that, the thickness direction cross sectional shape of described choke circle is one of them in rhombus, the trapezoidal and rectangle.

7. injecting combustor according to claim 1 is characterized in that, described choke circle is arranged at the described discharge of distance bottom 20～80mm part.

8. injecting combustor according to claim 1 is characterized in that, the aperture of described nozzle chamber is 0.4～1.2mm, and length is 2～12mm.

9. injecting combustor according to claim 1 is characterized in that, the length of described discharge is 30～100mm, and internal diameter is 5～12mm.