CN201568968U - Low-pressure natural gas energy-saving nozzle of water jacket furnace - Google Patents

Abstract

A water jacket furnace low-pressure natural gas energy-saving nozzle for the ground heating water jacket furnace in an oil field, which consists of an intake pipe, a combustion chamber, a gas nozzle, a suction chamber, a throat pipe, a mixing pipe, a mixing chamber, a combustion nozzle, a secondary combustion surface, a manual Composition of automatic damper, main air inlet, air inlet, bearing, shaft sleeve: welding of intake pipe and combustion chamber, connection of gas nozzle and combustion chamber with threads, injection chamber and throat pipe, throat pipe and mixing pipe, mixing pipe and mixing chamber All are welded, the combustion nozzle and the mixing chamber, the secondary combustion surface and the mixing chamber are connected with screws, the shell of the manual and automatic damper is welded to the main air inlet, the shaft of the manual and automatic damper is interference fit with the bearing, the air inlet and the combustion chamber , Bearings and bushings are welded. The nozzle solves the problems of black smoke emission, incomplete combustion, environmental pollution and energy waste in the prior art when the natural gas pressure is low. It can be widely used in oil field surface heating water jacket furnace.

Description

Water Jacket Boiler Low Pressure Natural Gas Energy Saving Nozzle

Technical field:

The utility model relates to a low-pressure natural gas energy-saving nozzle of a water jacket furnace used for heating a water jacket furnace on the surface of an oil field.

Background technique:

At present, the surface heating water jacket furnace in the oil field is used in the water jacket furnace with high natural gas pressure. The high-pressure natural gas is injected into the water jacket furnace, and the fire is red, and the combustion effect is particularly good. Due to the high temperature in the furnace, the combustible gas burns relatively thoroughly, and the chimney is not Black smoke. If it is used on a gas source with low natural gas pressure, the combustion effect will not be very good, and black smoke will be emitted, polluting the environment and wasting energy. If there is windy weather, the temperature in the furnace is low, and the wind blows, sometimes the furnace fire is blown out, affecting production.

Utility model content:

The purpose of the utility model is to provide a low-pressure natural gas energy-saving nozzle for a water jacket furnace, which solves the problems in the prior art of emitting black smoke when the pressure of the natural gas is low, incomplete combustion, polluting the environment, and wasting energy.

The technical scheme adopted by the utility model to solve the technical problem is: the low-pressure natural gas energy-saving nozzle of the water jacket furnace, which consists of an intake pipe, a combustion chamber, a gas nozzle, a suction chamber, a throat pipe, a mixing pipe, a mixing chamber, a combustion nozzle, a secondary Combustion surface, manual and automatic damper, main air inlet, air inlet, bearing, shaft sleeve: the intake pipe is welded to the combustion chamber, the gas nozzle is connected to the combustion chamber with threads, the suction chamber and the throat, the throat and the mixing pipe, and the mixing The pipe and the mixing chamber are welded, the combustion nozzle and the mixing chamber, the secondary combustion surface and the mixing chamber are connected with screws, the shell of the manual and automatic damper is welded to the main air inlet, the shaft of the manual and automatic damper is interference fit with the bearing, and the air The inlet and the combustion chamber, the bearing and the bushing are all welded; when working: low-pressure natural gas enters the gas chamber through the intake pipe, and the gas is ejected from 5 gas nozzles at the same time after the pressure is stabilized in the gas chamber. The air brought in passes through the throat into the mixing tube for thorough mixing, and then goes through the mixing chamber for equal pressure mixing. It is sprayed at 60° through 72 small holes on the combustion nozzle to form mutual combustion and primary combustion. Inside the combustion chamber, there is refractory soil as the bushing, and heat-resistant alloy raised points are burned on it. The temperature of the heat-resistant alloy raised points after burning is very high, and the incomplete combustion gas passing through this point will undergo secondary combustion after passing through. The secondary combustion solves the problem of incomplete combustion and instantaneous low temperature in the furnace to extinguish the fire. The damper of the previously designed air mixture is manually adjusted, and locked after being adjusted to a fixed position. If it is windy, the temperature in the furnace will be too much due to the air entering, and the furnace tube will suck away the temperature in the furnace chamber, which wastes energy. If there is a strong wind, the fire may be blown out, affecting production. We have designed a set of automatic dampers using the principle of area pressure difference and equal pressure. After manually adjusting to a certain amount of air intake, it is fixed. The damper is automatically closed when the wind blows, and the damper automatically returns to the original adjusted angle when there is no wind.

The beneficial effects of the utility model are: the design is novel, the structure is relatively simple, and the use is convenient; the low-pressure natural gas is fully burned, and the unburned natural gas is used for secondary combustion, which is energy-saving, environmentally friendly, and safe; Scratch out the flames.

Description of drawings:

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic cross-sectional view of the manual and automatic damper of the present invention.

In the figure 1. Intake pipe, 2. Combustion chamber, 3. Gas nozzle, 4. Suction chamber, 5. Throat pipe, 6. Mixing pipe, 7. Mixing chamber, 8. Combustion nozzle, 9. Secondary combustion surface, 10. Manual automatic damper, 11. Main air inlet, 12. Air inlet, 13. Bearing, 14. Shaft sleeve.

Detailed ways:

In the accompanying drawings, the low-pressure natural gas energy-saving nozzle of the water jacket furnace consists of an intake pipe 1, a combustion chamber 2, a gas nozzle 3, a suction chamber 4, a throat pipe 5, a mixing pipe 6, a mixing chamber 7, a combustion nozzle 8, a secondary combustion Surface 9, manual automatic damper 10, main air inlet 11, air inlet 12, bearing 13, and shaft sleeve 14 are composed of: intake pipe 1 is welded to combustion chamber 2, gas nozzle 3 is connected to combustion chamber 2 with threads, and suction chamber 4 is connected to combustion chamber 2. The throat pipe 5, the throat pipe 5 and the mixing pipe 6, the mixing pipe 6 and the mixing chamber 7 are all welded, the combustion nozzle 8 and the mixing chamber 7, the secondary combustion surface 9 and the mixing chamber 7 are all threaded, and the manual and automatic dampers 10 The shell of the shell is welded with the main air inlet 11, and the shaft of the manual automatic damper 10 is interference fit with the bearing 13, and the air inlet 12 and the combustion chamber 2, the bearing 13 and the axle sleeve 14 are all welded.

Claims (1)

1. A low-pressure natural gas energy-saving nozzle for a water jacket furnace, consisting of an inlet pipe (1), a combustion chamber (2), a gas nozzle (3), an injection chamber (4), a throat pipe (5), a mixing pipe (6), Mixing chamber (7), combustion nozzle (8), secondary combustion surface (9), manual automatic damper (10), main air inlet (11), air inlet (12), bearing (13), shaft sleeve (14) The composition is characterized in that: the intake pipe (1) is welded to the combustion chamber (2), the gas nozzle (3) is connected to the combustion chamber (2) with threads, the injection chamber (4) is connected to the throat (5), the throat ( 5) and the mixing tube (6), mixing tube (6) and the mixing chamber (7) are all welded, the combustion nozzle (8) and the mixing chamber (7), the secondary combustion surface (9) and the mixing chamber (7) are all welded It is threaded connection, the shell of the manual automatic damper (10) is welded to the main air inlet (11), the shaft of the manual automatic damper (10) is interference fit with the bearing (13), and the air inlet (12) is connected to the combustion chamber (2) , Bearing (13) and axle sleeve (14) are welding.

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