CN101165431A

CN101165431A - Heating furnace

Info

Publication number: CN101165431A
Application number: CNA200610069528XA
Authority: CN
Inventors: 李长龙; 唐杰; 郭洪金; 王庆允; 张文德
Original assignee: YANTAI CHANGHENG BOILER VESSEL CO Ltd
Current assignee: YANTAI CHANGHENG BOILER VESSEL CO Ltd
Priority date: 2006-10-21
Filing date: 2006-10-21
Publication date: 2008-04-23

Abstract

This invention belongs to the heating equipment technology field. It relates to a heating furnace which is used to heating oil well device in the process of oil extraction. Low temperature combustion chamber and external gasifying combustion chamber are arranged on the grate inside of the hearth. Ring shaped furnace wall is arranged between the two chambers. Several air guiding holes are set on the furnace wall. Ring shaped water collecting tanks are set on the superior and inferior end faces of the ring shaped furnace wall. The water collecting tanks are communicated by several convection bundle pipes. The convection bundle pipes are set on the ring shaped furnace wall. Water inlet and outlet, which are outside of the furnace body, are arranged on the ring shaped water collecting tank. First and second air supplying devices, which are communicated with the low temperature combustion chamber and gasifying combustion chamber respectively, are arranged on the furnace body. This invention is small, simple and convenient. It saves energy and has high heat efficiency.

Description

Heating furnace

Technical field:

The invention belongs to the firing equipment technical field, be specifically related to give in the oil recovery process of a kind of oil field the heating furnace of oil well equipment heating usefulness.

Background technology:

The heater of using on the existing oilfield equipment is by electrothermal tube the water jacket in the equipment to be heated, and guarantees that crude oil production needs, and its shortcoming is the equipment investment cost height, and power consumption is big, keeps in repair and safeguard inconvenience.

Summary of the invention:

The purpose of this invention is to provide that a kind of volume is little, simple in structure, fuel consume low, energy-conservation, the thermal efficiency is high, environmental protection does not have flue dust discharging, heating furnace easy to use.

Technical scheme of the present invention is: a kind of heating furnace, form by the fire door on the bottom of furnace body sidewall, the smoke evacuation adapter on the upper portion side wall, bell, adiabator layer on the madial wall and cinder chamber and the fire grate in the burner hearth on the top, it is characterized in that establishing on the grate furnace in burner hearth the gasification combustion chamber in the low temperature combustor and the outside, establish annular furnace wall between two combustion chambers; On annular furnace wall, be laid with some gas ports, establish annular header tank on the upper and lower end face of annular furnace wall, be communicated with by being embedded in annular furnace some convection current beam tubes within the walls between the annular header tank; Establishing intake-outlet on the annular header tank is positioned at outside the body of heater; On body of heater, also be provided with the air-supply arrangement and the secondary blast device that communicate with low temperature combustor and gasification combustion chamber respectively.

Wherein, described annular furnace wall is to be made by the gasproof cement grouting,

Described gas port is to be made of high oblique clear opening outside interior the hanging down that is provided with on annular furnace wall.

A described air-supply arrangement is to be made of the indoor air-supply pipeline of cinder; Establish blast cap on the inner of pipeline, and be positioned on the fire grate, the blast cap top is provided with oblique air vent for the conical surface, downside are cylinder on the conical surface, be laid with the strip wind pushing hole on the downside cylinder wall; Establish louver on the external port of pipeline, louver comprises fixed disk and the movable disk on the pipeline external port, is equipped with ventilating opening on fixed disk and movable disk, and is connected as a single entity by axle.

Described secondary blast device is that 2----6 the air outlet that is laid with on the body of heater lower wall formed, on air outlet, establish louver, louver comprises fixed disk and the movable disk on the pipeline external port, is equipped with ventilating opening on fixed disk and movable disk, and is connected as a single entity by axle.

Owing to adopt technique scheme, coal-fired indoor through primary combustion at the burner hearth low-temperature burning of body of heater, produce CO gas, enter in the gasification combustion chamber through gas port, carry out second-time burning, to annular furnace wall heating, guarantee annular header tank and the interior water heating of convection current beam tube in the furnace wall, assurance is heated the water jacket in the oil field equipment, satisfy the crude oil production needs, have that volume is little, simple in structure, fuel consume low, energy-conservation, the thermal efficiency is high, does not have flue dust discharging, environmental protection, advantage easy to use through twice combustion.

Description of drawings:

Come technical scheme of the present invention is described in further details below in conjunction with the drawings and specific embodiments.

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the left view that Fig. 1 has broken section.

Specific embodiment: with reference to figure 1---Fig. 3, a kind of heating furnace, by the fire door 2 on the body of heater 1 bottom sidewall, smoke evacuation on the upper portion side wall take over 4, bell 3 on the top, adiabator layer 5 on the madial wall and the cinder chamber 7 in the burner hearth and fire grate 6 form, establish on the fire grate in burner hearth between 9, two combustion chambers of gasification combustion chamber in the low temperature combustor 8 and the outside and establish the annular furnace wall of making by the gasproof cement grouting; Be laid with some gas ports 10 on annular furnace wall, stop up for preventing flue dust, described gas port is interior low outer high oblique clear opening; Establish annular header tank 11 on the upper and lower end face of annular furnace wall, be communicated with by being embedded in annular furnace some convection current beam tubes 12 within the walls between the annular header tank; Establishing intake-outlet on the annular header tank 11 is positioned at outside the body of heater 1; On body of heater 1, also be provided with the air-supply arrangement and the secondary blast device that communicate with low temperature combustor 8 and gasification combustion chamber 9 respectively; An air-supply arrangement is to be made of the indoor air-supply pipeline of cinder; Establish blast cap 13 on the inner of pipeline, and be positioned on the fire grate, the blast cap top is provided with oblique air vent for the conical surface, downside are cylinder on the conical surface, be laid with the strip wind pushing hole on the downside cylinder wall; Establish louver on the external port of pipeline, louver comprises fixed disk 14 and the movable disk 15 on the pipeline external port, is equipped with ventilating opening on fixed disk and movable disk, and is connected as a single entity by axle; The secondary blast device is that 2-6 the air outlet 16 that is laid with on the body of heater lower wall formed, on air outlet, establish louver, louver comprises fixed disk and the movable disk on the pipeline external port, is equipped with ventilating opening on fixed disk and movable disk, and is connected as a single entity by axle.The secondary blast device of present embodiment is to be laid with 4 air outlets 16 on the body of heater lower wall to form.During use, smoke evacuation of the present invention is taken on inside " U " the type flue that directly inserts the oil recovery water jacket furnace, lay certain slag layer at stoker surface, put combustibles such as lighting wooden unit, add an amount of coal, after treating that coal ignites, disposable coal is to sealing from the about 100MM of one row's gas port of the superiors, adjust once, the intake of secondary air device, at this moment, make and be in the indoor coal preheating destructive distillation of low-temperature burning, fuel gas such as CO coal gas are emitted in reduction-oxidation, and the gas port on annular furnace wall enters the indoor abundant burning of gasification, and combustion, and high-temperature flue gas enters in inside " U " the type flue of oil recovery water jacket furnace equipment is further heated, guarantee that crude oil obtains enough heats, the requirement that reaches ordinary production gets final product.Through the inspection side, one time coal can move about 4 hours, and operating pressure is below 0.09Mpa, and fume emission blackness Lin Geman 0 spends, and soot emissions are less than 50mg/Nm ³

Claims

1. heating furnace, form by the fire door (2) on the sidewall of body of heater (1) bottom, the smoke evacuation adapter (4) on the upper portion side wall, the bell (3) on the top, adiabator layer (5) and interior cinder chamber (7) and the fire grate (6) of burner hearth on the madial wall, it is characterized in that establishing on the fire grate in burner hearth the gasification combustion chamber (9) in the low temperature combustor (8) and the outside, establish annular furnace wall between two combustion chambers; On annular furnace wall, be laid with some gas ports (10), establish annular header tank (11) on the upper and lower end face of annular furnace wall, be communicated with by being embedded in annular furnace some convection current beam tubes (12) within the walls between the annular header tank; Establishing intake-outlet on the annular header tank (11) is positioned at outside the body of heater (1); On body of heater (1), also be provided with the air-supply arrangement and the secondary blast device that communicate with low temperature combustor (8) and gasification combustion chamber (9) respectively.

2. by the described a kind of heating furnace of claim 1, it is characterized in that described annular furnace wall is to be made by the gasproof cement grouting,

3. described gas port (10) is to be made of high oblique clear opening outside interior the hanging down that is provided with on annular furnace wall.

4. by the described a kind of heating furnace of claim 1, it is characterized in that a described air-supply arrangement is to be made of the indoor air-supply pipeline of cinder; Establish blast cap (13) on the inner of pipeline, and be positioned on the fire grate, the blast cap top is provided with oblique air vent for the conical surface, downside are cylinder on the conical surface, be laid with the strip wind pushing hole on the downside cylinder wall; Establish louver on the external port of pipeline, louver comprises fixed disk (14) and the movable disk (15) on the pipeline external port, is equipped with ventilating opening on fixed disk and movable disk, and is connected as a single entity by axle.

5. by the described a kind of heating furnace of claim 1, it is characterized in that described secondary blast device is that 2----6 the air outlet (16) that is laid with on the body of heater lower wall formed, on air outlet, establish louver, louver comprises fixed disk and the movable disk on the pipeline external port, on fixed disk and movable disk, be equipped with ventilating opening, and be connected as a single entity by axle.