RU2319899C1 - Igniting burner - Google Patents

Abstract

FIELD: power engineering.

SUBSTANCE: igniting burner comprises flame pickup mounted in the housing with bimetallic plate and flame pickup having normally open nozzle, pulse tubes, system for control of gas regulator. The pickup of gas from the gas-supply system with normally closed valve and lever of gas supply are mounted on the housing of the flame pickup above the bimetallic plate. The pickup of gas from the gas-supply system is connected with the housing of the flame pickup through the pulse tubes, pipe, and system of control of gas regulator of the main burner.

EFFECT: simplified structure and enhanced reliability.

2 dwg

Description

FIELD OF THE INVENTION

The invention relates to energy, in particular to ignition burners in devices for burning gaseous fuels, and can be used in gas burner devices of steam and hot water boilers.

State of the art

Known nozzle assembly of the burner, comprising a housing with a guide plate mounted outside it and bent ends bent by a predetermined angle relative to its plane towards the flow, while the plate is provided with a pivot axis perpendicular to the longitudinal axis of the housing and its end bent at an angle 10-15 ° (see AS of the USSR No. 989244, class F23D 13/26).

The disadvantage of this nozzle unit of the burner is the insufficient mixing of gas with primary air and the quality of combustion.

Known atmospheric gas burner containing a gas regulator, consisting of a control unit connected to a temperature sensor using a control channel, a control unit connected to flame sensors, traction control channel, while it is equipped with a second gas regulator consisting of a control unit connected to temperature and outdoor air sensors, the control unit, while the second gas regulator is installed with the possibility of parallel connection of the cavities of the control units and the temperature sensor zhnogo air by connecting a second regulation unit of the gas regulator, wherein the percentage of gas supply to the burner controls both valves installed (see. US Pat. RF №2196939, cl. F23N 1/10, F23D 14/60).

The disadvantage of this burner is its low power due to the use of gas regulators with a throughput of 12 m ³ / hour each (gas regulators with a higher capacity are not manufactured by the industry). The second disadvantage of this burner is the lack of an electrical signal to turn on and off the burner, depending on the operation of the circulation pumps of the smoke exhaust motors and other electrical units of the heating system.

The closest in technical essence and the achieved positive effect and adopted by the author for the prototype is a pilot burner containing a flame sensor installed in a housing with a thermo-bimetallic plate and a flame sensor including a normally open nozzle, impulse tubes, a control system and a gas regulator (see. Two-stage atmospheric gas burner. RGU-M1 - operating manual. Ca 2. 574.023.RE OJSC Starorusspribor Plant, 175200, Staraya Russa, Novgorod Region, Mineralnaya St., 24).

The disadvantage of this burner is the design complexity, low reliability and lack of self-monitoring of the presence of flame with the supply of network gas to the controlled gas regulator of the main burner.

Disclosure of invention

The technical result that can be achieved using the present invention is to self-control the presence of flame, simplifying the design and improving the reliability of the burner.

The technical result is achieved using a pilot burner containing a flame sensor installed in a housing with a thermo-bimetallic plate and a flame sensor including a normally open nozzle, impulse tubes, a gas regulator control system, while a network gas sensor with a gas sensor is installed above the thermo-bimetal plate a normally closed valve and a gas start lever, and the network gas sensor is connected by means of impulse tubes to the flame sensor housing, pipe, control system call regulator of the main burner.

Brief Description of the Drawings

Figure 1 shows the pilot burner, General view.

Figure 2 is the same, view A of the pilot burner.

The implementation of the invention

The ignition burner consists of a flame sensor 1 installed in a housing (not indicated) with a thermobimetallic plate 2, a flame sensor 3 containing a normally open nozzle (not indicated), a pulse gas supply pipe 4, while the flame sensor 3 is connected to a gas regulator ( not shown) by means of a pulse tube 5, and on the flame sensor housing 1 above the thermo-bimetallic plate 2, an additional network gas sensor 6 with a normally closed valve (not shown) is connected, connected via a pulse tube 7 to a gas ode (not shown), and a pulse tube 4 with the housing of the flame sensor 1, pipe 8 and the control system of the gas regulator (not shown) of the main burner (not shown), the network gas sensor 6 through the tee 9 is also connected to the gas pipe via a pulse tube 4 regulator. The flame sensor housing 1 contains a lever 10 for starting gas into the impulse tube 4 and tee 9.

The ignition burner operates as follows.

The ignition burner is turned on in the following way: manually press the lever 10, the valve in the network gas sensor 6 rises and the gas flows through the pulse tubes 7 and 4 into the flame sensor housing 1 and pipe 8, the gas is ignited. At the same time, through the tee 9, the network gas is supplied to the gas regulator control system, the flame heats the thermobimetal plate 2, which, when heated, rises, while the normally open nozzle of the flame sensor 3 is closed, which is signaled by the pulse tube 5 to the gas regulator. At the same time, the thermobimetallic plate 2 keeps the valve of the network gas sensor 6 open, the lever 10 can be released and the gas will be supplied both to the combustion pipe 8 and to control the gas regulators through the tee 9. When the flame goes out, the thermobimetal plate 2, cooling down, moves down. this closes the valve of the network gas sensor 6, in the impulse pipe 4, tee 9, the gas pressure disappears and a signal is supplied to the gas regulator. In addition, a normally open flame sensor nozzle 3 opens, which is also signaled by a pulse tube 5 to the gas regulator, the gas supply to the main burner is turned off, and to start the ignition burner, it is necessary to eliminate the causes of the extinction of the flame and manually ignite the ignition burner, as described above. Thus, the pilot burner has the property of self-control. The invention in comparison with the prototype and other known technical solutions has the following advantages:

- the function of self-control;

- automatic temperature control of the coolant;

- simplification of the design;

- increase in reliability and power;

- the presence of an electrical signal to turn on - off the burner;

- the accuracy of the proportioning of gas and air flow when changing the power of the burner.

Claims (1)

Ignition burner containing a flame sensor installed in a housing with a bimetallic plate, and a flame sensor including a normally open nozzle, impulse tubes, a gas regulator control system, characterized in that a network gas sensor with a normally closed valve is installed on the flame sensor housing above the bimetallic plate and a gas start lever, while the network gas sensor is connected via impulse tubes to the flame sensor housing, a pipe, a control system for the gas regulator of the main burner.

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