A kind of efficient tube type heating furnace
Technical field
This utility model belongs to tubular heater technical field, specifically discloses a kind of efficient tube type heating furnace.
Background technology
Tubular heater is the Furnace used in the industry such as petroleum refining, petrochemical industry, Coal Chemical Industry, tar production, Crude Oil Transportation, and heated material is gas or liquid at Bottomhole pressure medium;And being all inflammable and explosive material, operating condition is harsh, long-term operation hitless operation simultaneously, mode of heating is directly by fire.The exhaust gas temperature of tubular heater can be reduced to about 100 DEG C, it is achieved contains the partial condensation of sour water steam in flue gas, and while recovered flue gas low temperature sensible heat, the energy recovery section latent heat of vaporization containing sour water steam, improves thermal efficiency of heating furnace further, saves the energy.
In prior art, the document about tubular heater is the most more, the such as patent of invention of Application No. 200910026382.4 discloses a kind of tubular heater, including body of heater, boiler tube and burner, boiler tube is arranged in body of heater, burner is arranged in body of heater, being provided with radiant body between burner and boiler tube in body of heater, this radiant body forms radiation lumen in body of heater, and radiation lumen is positioned at the central area of body of heater;Burner and radiation lumen are interconnected;Radiation lumen is square box shape or circle;Radiation lumen is single-chamber or multi-cavity;Being provided with radiant body between boiler tube and body of heater, radiant body and body of heater form radiation exocoel, and this radiation exocoel is connected with radiation lumen;When the burner of heating furnace is tipburn, end burning or side burning, burner is connected with radiation exocoel;Radiant body is ceramic heat conductor or high alloy heat carrier, offers radial direction or oblique hole on the body wall of radiant body;Boiler tube is snakelike or helical form boiler tube, radiant body or the convex radiant body stretching in outward between pipe it is communicated with between boiler tube adjacent tubular segments, connect radiant body or stretch in outward the convex radiant body between pipe, connection radiant body or to stretch in outward the convex radiant body between pipe be honeycomb ceramics or the entity heat carrier having through hole, connection radiant body or stretch in outward convex radiant body between the pipe radiation lumen by through hole and boiler tube both sides and radiate exocoel and be connected or connect;The outlet of body of heater is connected with the heat storage of flue gas waste heat recovery apparatus or heat storage type combustion and communicates, the heat storage connection of flue gas waste heat recovery apparatus or heat storage type combustion communicates, flue gas waste heat recovery apparatus and chimney connection communicate, and the combustion air line that the preheated air that flue gas waste heat recovery apparatus produces is passed through burner by pipeline connects;Exhanst gas outlet flows into flue and enters between flue gas waste heat recovery apparatus, added with flue gas material convection recuperator.
The utility model patent of Application No. 200920158985.5 discloses a kind of tubular heater, including horizontal body of heater, heat ray filter and heat-exchanger rig it is provided with in horizontal chamber furnace (oven) body, heat ray filter is made up of monolithc lining and flame-retardant fibre board, monolithc lining is closely connected in the inwall of horizontal body of heater, and flame-retardant fibre board is fixed on the surface of monolithc lining;Heat-exchanger rig is made up of boiler tube, and boiler tube is located at the inner side of flame-retardant fibre board, and the outside at horizontal body of heater is stretched out at the two ends of boiler tube;Horizontal body of heater is provided with explosion-protection equipment;Horizontal body of heater is provided with connecting hole and hanger;Horizontal body of heater is arranged below support means.
The patent of invention of Application No. 201110459125.7 discloses a kind of waste heat recovery system of pipe heater, including aerator, front preheating process device and air preheater, front preheating process device is arranged at import department or the exit of aerator, the outlet of front preheating process device is connected with the import of air preheater, cold air is after aerator, enter front preheating process device, discharge after preposition preheater heats, finally enter air preheater;Front preheating process device is finned tube exchanger or tube bundle heat exchanger;Thermal source in front preheating process device is hot water or steam.
But, although existing tube heater is provided with flow-disturbing heat exchanger tube between combustor and Heat Room, but flow-disturbing heat exchanger tube is simply individually arranged on a certain position or a certain region, but owing to the medium speed of service that is passed through in Heat Room is very fast, gas or liquid medium therefore can be caused to be heated uneven problem.
Utility model content
The medium that this utility model exists to solve existing tubular heater heats uneven problem, and provides a kind of efficient tube type heating furnace, it is possible to the medium of hot Heat Room is heated evenly, and improves the effect of medium heating.
For solving above-mentioned technical problem, this utility model be the technical scheme is that
A kind of efficient tube type heating furnace, including tubular type body of heater, it is characterized in that, it is provided with combustor and heat-exchanging chamber in described tube furnace body, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, is being provided with heated medium outlet, is being provided with heated medium entrance on the tubular type body of heater of exhaust opening on the tubular type body of heater of entry of combustion chamber;Described heat-exchanging chamber exports with heated medium entrance and heated medium and connects mutually;Described combustor includes that combustor exterior combustion chamber and inner combustion chamber, described exterior combustion chamber are set on the inwall of tubular type body of heater, and described inner combustion chamber is interconnected with the bottom of exterior combustion chamber, and described inner combustion chamber connects with exhaust opening with the top of exterior combustion chamber;The heat-exchanging chamber being heated for medium is formed between described inner combustion chamber and exterior combustion chamber.
Described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room being interconnected, and described Low Temperature Thermal switch room connects with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
The connection pipeline having for being connected inner combustion chamber it is connected with exterior combustion chamber between described inner combustion chamber and exterior combustion chamber.
The outer wall of described connection pipeline is provided with heat sink strip.
Described exhaust opening connects smoke exhaust pipe, is connected flexible closing device between described exhaust opening and smoke exhaust pipe.
Compared with prior art, this utility model has the advantages that
Efficient tube type heating furnace of the present utility model, by combustor being divided into inner combustion chamber and exterior combustion chamber, the heat-exchanging chamber that heated medium can be formed with exterior combustion chamber in inner combustion chamber heats, compare existing heated on one side, the both sides of heated medium can be heated, thus improve the uniformity of heating, improve the efficiency of heating surface.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Labelling in figure: 1, tubular type body of heater, 2, exterior combustion chamber, 3, heat-exchanging chamber, 4, connect pipeline, 5, inner combustion chamber, 6, heated medium entrance, 7, heated medium outlet, 8, smoke exhaust pipe.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described, and described embodiment is only a part of embodiment of this utility model, is not whole embodiments.Based on the embodiment in this utility model, those of ordinary skill in the art obtained under not making creative work premise other used by embodiment, broadly fall into protection domain of the present utility model.
In conjunction with accompanying drawing, efficient tube type heating furnace of the present utility model, including tubular type body of heater 1, combustor and heat-exchanging chamber 3 it is provided with in described tubular type body of heater 1, one end of described tubular type body of heater 1 is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater 1 is the exhaust opening with combustion chamber, is being provided with heated medium outlet 7, is being provided with heated medium entrance 6 on the tubular type body of heater 1 of exhaust opening on the tubular type body of heater 1 of entry of combustion chamber;Described heat-exchanging chamber 3 exports 7 with heated medium entrance 6 and heated medium and connects mutually;Described combustor includes combustor exterior combustion chamber 2 and inner combustion chamber 5, and described exterior combustion chamber 2 is set on the inwall of tubular type body of heater 1, and described inner combustion chamber 5 is interconnected with the bottom of exterior combustion chamber 2, and described inner combustion chamber 5 connects with exhaust opening with the top of exterior combustion chamber 2;The heat-exchanging chamber 3 being heated for medium is formed between described inner combustion chamber 5 and exterior combustion chamber 2.
Efficient tube type heating furnace of the present utility model, by combustor being divided into inner combustion chamber and exterior combustion chamber, the heat-exchanging chamber that heated medium can be formed with exterior combustion chamber in inner combustion chamber heats, compare existing heated on one side, (outside of heated medium and exterior combustion chamber carry out heat exchange in the both sides of heated medium, the inner side of heated medium and inner combustion chamber's heat exchange) can heat, thus improve the uniformity of heating, improve the efficiency of heating surface.
As a kind of preferably mode of this utility model, described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room being interconnected, and described Low Temperature Thermal switch room connects with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
In order to improve the thermal efficiency between inner combustion chamber and exterior combustion chamber, between described inner combustion chamber 5 and exterior combustion chamber 2, it is connected the connection pipeline 4 having for being connected inner combustion chamber 5 with exterior combustion chamber 2.
The outer wall of described connection pipeline 4 is provided with heat sink strip, it is simple to improve exchange area, improves the efficiency of heating surface of heated medium.
As a kind of preferably mode of this utility model, described exhaust opening connects smoke exhaust pipe 8, is connected flexible closing device between described exhaust opening with smoke exhaust pipe 8, and resilient seal device belongs to prior art products, those skilled in the art is appreciated and understood that, does not repeats them here.Ensure that the properly functioning of product by resilient seal device, because the temperature of combustor is higher, therefore the expanded by heating of material is relatively big, therefore solves this problem by resilient seal device.
Embodiment one
The efficient tube type heating furnace of the present embodiment, including tubular type body of heater, it is provided with combustor and heat-exchanging chamber in described tube furnace body, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, on the tubular type body of heater of entry of combustion chamber, it is provided with heated medium outlet, on the tubular type body of heater of exhaust opening, is provided with heated medium entrance;Described heat-exchanging chamber exports with heated medium entrance and heated medium and connects mutually;Described combustor includes that combustor exterior combustion chamber and inner combustion chamber, described exterior combustion chamber are set on the inwall of tubular type body of heater, and described inner combustion chamber is interconnected with the bottom of exterior combustion chamber, and described inner combustion chamber connects with exhaust opening with the top of exterior combustion chamber;The heat-exchanging chamber being heated for medium is formed between described inner combustion chamber and exterior combustion chamber.
Embodiment two
The efficient tube type heating furnace of the present embodiment, including tubular type body of heater, it is provided with combustor and heat-exchanging chamber in described tube furnace body, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, on the tubular type body of heater of entry of combustion chamber, it is provided with heated medium outlet, on the tubular type body of heater of exhaust opening, is provided with heated medium entrance;Described heat-exchanging chamber exports with heated medium entrance and heated medium and connects mutually;Described combustor includes that combustor exterior combustion chamber and inner combustion chamber, described exterior combustion chamber are set on the inwall of tubular type body of heater, and described inner combustion chamber is interconnected with the bottom of exterior combustion chamber, and described inner combustion chamber connects with exhaust opening with the top of exterior combustion chamber;The heat-exchanging chamber being heated for medium is formed between described inner combustion chamber and exterior combustion chamber;Described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room being interconnected, and described Low Temperature Thermal switch room connects with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
Embodiment three
On the basis of any of the above-described embodiment, between described inner combustion chamber and exterior combustion chamber, it is connected the connection pipeline having for being connected inner combustion chamber with exterior combustion chamber.
Embodiment four
On the basis of embodiment three, the outer wall of described connection pipeline is provided with heat sink strip.
Embodiment five
On the basis of any of the above-described embodiment, described exhaust opening connects smoke exhaust pipe, is connected flexible closing device between described exhaust opening and smoke exhaust pipe.