RU2600654C1 - Gas burner - Google Patents

Gas burner Download PDF

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Publication number
RU2600654C1
RU2600654C1 RU2015131201/06A RU2015131201A RU2600654C1 RU 2600654 C1 RU2600654 C1 RU 2600654C1 RU 2015131201/06 A RU2015131201/06 A RU 2015131201/06A RU 2015131201 A RU2015131201 A RU 2015131201A RU 2600654 C1 RU2600654 C1 RU 2600654C1
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RU
Russia
Prior art keywords
gas
nozzles
nozzle
rows
air supply
Prior art date
Application number
RU2015131201/06A
Other languages
Russian (ru)
Inventor
Рышард Борисович Желукевич
Юрий Филиппович Кайзер
Алексей Васильевич Лысянников
Юлия Геннадьевна Серебреникова
Вячеслав Александрович Артёменко
Александр Федорович Кудряшов
Original Assignee
Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет" filed Critical Федеральное государственное автономное образовательное учреждение высшего образования "Сибирский федеральный университет"
Priority to RU2015131201/06A priority Critical patent/RU2600654C1/en
Application granted granted Critical
Publication of RU2600654C1 publication Critical patent/RU2600654C1/en

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01HSTREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/10Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice by application of heat for melting snow or ice, whether cleared or not, combined or not with clearing or removing mud or water, e.g. burners for melting in situ, heated clearing instruments; Cleaning snow by blowing or suction only
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone

Abstract

FIELD: energy.
SUBSTANCE: invention relates to power engineering, in particular, to machines for moistening snow mass during continuous construction of snow-ice roads and ground airfields in northern areas. Gas burner includes gas chamber with gas nozzles, pipe for feeding gas into gas chamber and air supply flow pipe with inclusions of loosened snow. Gas chamber is multi-sectional in form of annular partitions of tubes (3, 4 and 5) located in air supply flow pipe (2), and gas supply pipe (1) is made in form of a distribution manifold, axis of which is parallel to axis of air supply flow pipe on its outer side. Annular partitions (3, 4 and 5), forming sections of gas chamber, are made with different outer diameters and are installed in air supply flow pipe (2) coaxially, at different levels, with bottom arrangement of partitions of smaller diameter. In lower part of annular partitions are installed gas nozzles (12), arranged in storey rows, forming for each annular partition a widened combustion zone from inner, middle and outer rows of gas nozzles. Middle gas nozzles are installed with vertical arrangement of axes, parallel to axis of air supply flow pipe (2). In external and internal rows axes of gas nozzles are deflected in different sides from vertical position in radial direction at an angle not greater than 45°. Nozzle (12) in said rows are installed in alternating order, with arrangement of nozzle of middle row between nozzles of inner and outer rows. Furthermore, each nozzle is equipped with cap (14), having hole (18) of variable cross section with convergent and divergent shape, and disc swirler (13), coupled with hole (18) of cap. Disc swirler is provided with recess (15) in centre and at least three through holes (16), connected by slots (17) with recess, having an output into hole (18) of variable cross-section of nozzle cap.
EFFECT: high temperature passing stream of snow, efficient transfer of heat over throughout volume and high efficiency of a gas burner.
1 cl, 4 dwg

Description

The invention relates to units for humidification of snow mass in the continuous construction of ice roads and unpaved airfields in the Northern regions.
A gas burner is known comprising a housing, inside which a central and peripheral gas supply ducts are installed, each of which is provided with a nozzle group at the outlet, a plate heat exchanger connected to the housing by a gas pipeline by means of a gas pipe, the central and peripheral gas supply ducts being perforated and rotatably mounted towards each other (RF Patent No. 2471118 C1, priority date 08/08/2011, publication date 12/27/2012, authors: A. Korobkov et al., RU).
A disadvantage of the known analogue is the complexity of manufacture and operation.
Known gas burner, adopted as a prototype, containing a gas chamber formed between two cylinders and end walls, a pipe for supplying gas, an axial fan for supplying air, gas nozzles located in the end wall around the circumference, and a reflector mounted on the guide rods with the ability to move along them, moreover, the guide rods are installed in tubes mounted on the outer cylinder of the burner (Patent No. 2486408 C1, priority date 02/08/2012, publication date 06/27/2013, authors: Badoev A.S. et al., RU, prot type).
The disadvantage of the prototype is the manufacturing complexity and low efficiency of the burner, due to the fact that the gas-air mixture during combustion in a closed volume forms a significant amount of products of incomplete combustion, which does not allow heat transfer from the combustion products to the heated medium moving inside the air supply stream with inclusions of loosened snow .
The objective of the invention is to increase the efficiency of the gas burner by increasing the temperature of the snow passing through it and increasing the efficiency due to the improvement of the nozzles and their more rational location, providing an expanded combustion zone in the pipe of the air supply stream.
To solve the problem, in a gas burner containing a gas chamber with gas nozzles, a gas supply pipe to the gas chamber and an air supply pipe with inclusions of loosened snow, according to the invention, the gas chamber is multisectional in the form of annular partitions of pipes located in the air supply pipe, and the gas supply pipe is made in the form of a distribution manifold, the axis of which is parallel to the axis of the air supply pipe from the outside, e the partitions forming the sections of the gas chamber are made with different outer diameters and are installed in the pipe of the air supply stream coaxially at different levels with the lower partitions of the smaller diameter, gas nozzles are installed in the lower part of the annular partitions, arranged in tiered rows, forming an extended zone for each annular partition combustion from the inner, middle and outer rows of gas nozzles, while in the middle row the gas nozzles are mounted with a vertical axis arrangement parallel to relative to the axis of the nozzle of the air supply stream, and in the outer and inner rows, with respect to the annular partition, the axes of the gas nozzles are deflected in different directions from the vertical position in the radial direction by an angle not exceeding 45 °, and the nozzles in these rows are installed in alternating order , with the middle row of nozzles being located between the nozzles of the inner and outer rows, each nozzle is additionally equipped with a nozzle having an opening of variable section of a tapering and expanding shape, and a disk swirler, married to the nozzle hole, while the disk swirler is provided with a recess in the center and at least three through holes connected by grooves with a recess having an outlet into the hole of a variable section of the nozzle nozzle, and the contour of the elongated groove face is made tangentially connecting the outer diameters of the through holes and recesses, and a short face is parallel to elongated with the contour tangent to the through hole.
In FIG. 1 schematically shows a gas burner, General view, a longitudinal section; in FIG. 2 - the same, top view; in FIG. 3 is a section AA in FIG. 2; in FIG. 4 is a section BB in FIG. 3.
The gas burner contains a gas supply pipe 1, an air supply pipe 2 with snow inclusions, a multi-section gas chamber made in the form of annular partitions from pipes 3, 4 and 5 located in the air supply pipe 2. In this case, the gas supply pipe 1 is made in the form of a distribution a collector whose axis is parallel to the axis of the nozzle of the air supply stream from its outer side. The annular partitions 3, 4 and 5, forming sections of the gas chamber, are made with different outer diameters and are installed in the pipe of the air supply stream 2 coaxially at different levels with the lower location of the partition 5 of a smaller diameter. In this case, the annular partitions 3, 4 and 5 are installed using additional supports 6, 7, 8 and are connected to the gas supply pipe 1 by means of sealed flange connections 9 and by means of connecting pipes passing through the holes in the pipe of the air supply stream 2, which is equipped with thermal insulation 10 and a casing 11. In the lower part of the annular partitions 3, 4 and 5, gas nozzles 12 are arranged, arranged in tiered rows, forming for each annular partition an expanded combustion zone from the inner, middle and outer rows of gas nozzles. Moreover, in the middle row, gas nozzles are installed with a vertical axis, parallel to the axis of the nozzle of the air supply stream 2, and in the outer and inner rows, with respect to the annular partition, the axes of the gas nozzles are deflected in different directions from the vertical position in the radial direction by an angle not exceeding 45 °. Gas nozzles in the indicated rows are installed with the same pitch in alternating order, with the middle row of nozzles being located between the nozzles of the inner and outer rows. In each of the gas nozzles 12, a disk swirler 13 is mounted, fixed by a nozzle 14. In this case, the disk swirler 13 is provided with a recess 15 in the center and at least three through holes 16 connected by grooves 17 with a recess 15 having an outlet into the hole 18 of the nozzle 14 made with a variable cross section of a tapering and expanding shape, accelerating the flow of gas. To pair the disk swirler 13 with the hole 18 of the nozzle 14, the contour of the elongated groove face 19 is made tangentially connecting the outer diameters of the through hole 16 and the recess 15, and the short face 20 is parallel to the contour elongated tangentially to the through hole 16. The gas burner is also equipped with a mechanism ignition 21, connected to the hole 18 of the nozzle 14.
Gas burner operates as follows.
The gas supplied through the distribution manifold 1, enters the annular partitions 3, 4 and 5 of the gas chamber located in the nozzle of the air supply stream 2 at different levels, taking into account the size of the combustion zones, and, passing through the gas nozzles 12, is ignited from the supply to each annular the partition of the ignition mechanism 21, forming a widened combustion zone due to the tiered arrangement of gas nozzles. The ignited gas effectively gives off heat to the passing stream of loosened snow, increasing its temperature, ensuring that the properties of the snow can be compacted when exposed to a load. At the same time, the implementation of the gas chamber is multi-sectional with the location of its annular partitions at different levels and different diameters, as well as with the lower arrangement of the annular partition of a smaller diameter and with the lower arrangement of gas burners allows you to uniformly increase the temperature of the entire volume of snow passing through the pipe 2 from the loosening device , for example, from a rotary snow blower, and, therefore, do not impede the passage of snow inclusions, and the installation of disk swirlers in gas nozzles She 13 of the proposed design improves the mixing of gas with air, ensures the completeness of combustion of gas and increases the efficiency of the burner.
Thus, the inventive gas burner allows you to achieve a higher technical result, which consists in increasing the temperature of the passing snow stream, in more efficient heat transfer throughout the volume and in increasing the efficiency of the gas burner.

Claims (1)

  1. A gas burner containing a gas chamber with gas nozzles, a gas supply pipe to the gas chamber and an air supply pipe with inclusions of loosened snow, characterized in that the gas chamber is multisectional in the form of annular partitions of pipes located in the air supply pipe, and a gas supply pipe made in the form of a distribution manifold, the axis of which is parallel to the axis of the pipe of the air supply stream from its outer side, annular partitions forming sections g gas chambers are made with different outer diameters and are installed in the pipe of the air supply stream coaxially at different levels with a lower location of a smaller diameter partition; gas nozzles are installed in the lower part of the annular partitions, arranged in tier rows, forming for each annular partition an expanded combustion zone from the inner, middle and the outer rows of gas nozzles, while in the middle row the gas nozzles are mounted with a vertical axis, parallel to the axis of the nozzle of the air supply flow, and in the outer and inner rows, with respect to the annular partition, the axes of the gas nozzles are deflected in different directions from the vertical position in the radial direction by an angle not exceeding 45 °, and the nozzles in these rows are installed in alternating order, with the arrangement nozzles of the middle row between the nozzles of the inner and outer rows, each nozzle is additionally equipped with a nozzle having an opening of variable cross section of a tapering and expanding shape, and a disk swirler associated with the nozzle opening, at the volume of the disk swirler is provided with a recess in the center and at least three through holes connected with grooves with a recess having an outlet into the hole of a variable section of the nozzle nozzle, the contour of the elongated face of the groove being tangentially connecting the outer diameters of the through hole and the recess, and the short face is made parallel elongated with the contour tangent to the through hole.
RU2015131201/06A 2015-07-27 2015-07-27 Gas burner RU2600654C1 (en)

Priority Applications (1)

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RU2015131201/06A RU2600654C1 (en) 2015-07-27 2015-07-27 Gas burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2015131201/06A RU2600654C1 (en) 2015-07-27 2015-07-27 Gas burner

Publications (1)

Publication Number Publication Date
RU2600654C1 true RU2600654C1 (en) 2016-10-27

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RU2015131201/06A RU2600654C1 (en) 2015-07-27 2015-07-27 Gas burner

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017920A (en) * 1959-02-26 1962-01-23 Eclipse Fuel Eng Co Ring burner with flame retention shield
US3995985A (en) * 1975-01-20 1976-12-07 Combustion Unlimited Incorporated Crude oil burner
RU2152558C1 (en) * 1998-11-30 2000-07-10 Зарубин Виктор Иванович Burner
RU2484199C2 (en) * 2011-05-26 2013-06-10 Коминтерн Александрович Щенников Snow melting unit
RU2486408C1 (en) * 2012-02-08 2013-06-27 Александр Сергеевич Бадоев Gas burner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017920A (en) * 1959-02-26 1962-01-23 Eclipse Fuel Eng Co Ring burner with flame retention shield
US3995985A (en) * 1975-01-20 1976-12-07 Combustion Unlimited Incorporated Crude oil burner
RU2152558C1 (en) * 1998-11-30 2000-07-10 Зарубин Виктор Иванович Burner
RU2484199C2 (en) * 2011-05-26 2013-06-10 Коминтерн Александрович Щенников Snow melting unit
RU2486408C1 (en) * 2012-02-08 2013-06-27 Александр Сергеевич Бадоев Gas burner

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20180728