CN201526346U

CN201526346U - Yellow phosphorous combustion heat recycling device

Info

Publication number: CN201526346U
Application number: CN2009202665860U
Authority: CN
Inventors: 王志凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-12
Filing date: 2009-11-12
Publication date: 2010-07-14
Anticipated expiration: 2019-11-12

Abstract

A yellow phosphorous combustion heat recycling device comprises a combustion chamber, a steam pocket, a tubular superheater, a yellow phosphorous spray gun, a guide pipe, an air inlet pipe, a base support, a water inlet pipe, a water feed pipe, a downcomer tube, a steam guide pipe, a steam pipe, a steam connecting pipe and a main steam pipe. The heat recycling device is characterized in that the combustion chamber consists of a compact tubular heat exchanger, an upper seal head and a lower seal head, the compact tubular heat exchanger is a hollow cavity formed by compactly arranging and fixing a plurality of heat pipes in the middles of upper and lower annular headers, the upper seal head and the lower seal head are respectively formed by compactly combining a plurality of annular pipes with different inner diameters, a sealing metal casing is arranged outside the combustion chamber, a heat insulating layer is arranged outside the outer casing, and the combustion chamber is fixed on the base support. The heat recycling device is simple in structure, low in welding allowance, high in heat recycling efficiency, reasonable in processing procedure and low in operation cost.

Description

Yellow phosphorus heat energy recycle device

Affiliated technical field

The invention belongs to energy recovery and utilize technical field, particularly in the thermal phosphoric acid production recovery of yellow phosphorus heat energy with utilize the field.

Background technique

What adopted heat energy recycle device firing chamber during existing thermal phosphoric acid produced is membrane wall structure; yellow phosphorus is produced phosphorus pentoxide gas when burning; be covered with one deck phosphorus pentoxide protective layer during proper functioning on the membrane wall, this has just been avoided the corrosion of moisture content that yellow phosphorus contains in because of air and phosphorus pentoxide reaction generation phosphoric acid polymerization thing when burning.Membrane wall structure needs because of welding during fabrication, and fin will have certain width, and this just makes the distance of fin center heat transferred heat absorption tube increase, and transmits the temperature difference and strengthens, and causes the fin core temperature far above the heat absorption tube wall temperature.When fin core temperature height arrives uniform temperature; the phosphorus pentoxide protective layer will be destroyed falls; the phosphorus pentoxide protective layer is in a single day destroyed; the phosphoric acid polymerization thing has very strong corrosivity to steel when high temperature; fin and heat absorption tube will soon be eroded by the phosphoric acid polymerization thing; cause the heat-energy recovering apparatus can't proper functioning; limited heat energy recycle; reason that existing phosphoric acid heat energy recycle device can not produce hyperthermia and superheating steam that Here it is; and membrane wall structure manufacturing process complexity, the welding job amount is big.

Summary of the invention

The purpose of this patent invention is in order to overcome the deficiencies in the prior art, to propose a kind of more high efficiency yellow phosphorus heat energy recycle device, and this heat energy recycle device can be reclaiming the heat raising more than 10%.Existing heat energy recycle device can only be produced saturated vapour, neoteric yellow phosphorus heat energy recycle device can be produced superheated vapor, saturated vapour has qualitative leap after becoming superheated vapor in the power generation and heat supply utilization, superheated steam generation heating efficiency height, heat energy utilization is more reasonable, production run is safety and stability more, and has good social benefit and economic benefit.

The scheme of the utility model yellow phosphorus heat energy recycle device solves problem is: a kind of heat energy recycle device comprises firing chamber, drum, tubular type superheater, yellow phosphorus spray gun, base support composition; It is characterized in that; The firing chamber is to be made of intensive tubular heat exchanger upper cover and lower seal head; Intensive tubular heat exchanger is closely to arrange the hollow cavity that forms by many heat absorption tubes of annular header center fixed up and down, and last lower seal head is that the ring pipe of a plurality of different inner diameters closely combines fixedly and forms; Upper cover is fixed on the annular header, lower seal head is fixed on down on the annular header, the upper cover center fixed has phosphorus pentoxide gas air pipe, the tubular type superheater is installed in the air pipe, the lower seal head center fixed has air intake pipe, is fixed with the yellow phosphorus spray gun on the air intake pipe, the outside Packed metal housing in firing chamber, the outer cover outside is provided with thermal insulation layer, and the firing chamber is fixed on the base support; The firing chamber disposed outside intake pipe that is connected with lower seal head, the supply pipe that drum is connected with lower seal head, the falling tube that drum is connected with lower collecting box, the steam lead that drum is connected with upper header, the steam tube that drum is connected with upper cover, the steam connection that upper cover is connected with tubular type superheater inlet duct, tubular type superheater outer pipe is connected with main steam pipe.

The beneficial effects of the utility model are, simple in structure, welding capacity is little, energy recovery efficient height, and technological process is reasonable, and operating cost is low.

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is a structural representation of the present utility model.

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

Among the figure 1, drum, 2, steam tube, 3, main steam pipe, 4, the hot device of tubular type, 5, air pipe, 6, ring pipe, 7, upper cover, 8, steam connection, 9, upper header, 10, heat absorption tube, 11, the firing chamber, 12, seal closure, 13, lower collecting box, 14 intake pipes, 15, air intake pipe, 16, the yellow phosphorus spray gun, 17, ring pipe, 18, base support, 19, lower seal head, 20, supply pipe, 21, falling tube, 22, thermal insulation layer, 23, steam lead.

Embodiment

This yellow phosphorus heat energy recycle device is made up of firing chamber 11, drum 1, tubular type superheater 4, yellow phosphorus spray gun 16, base support 18; Firing chamber 11 is to be made of intensive tubular heat exchanger, upper cover 7, lower seal head 19; Intensive tubular heat exchanger is closely to arrange the hollow cavity that forms by annular upper header 7 and many heat absorption tubes of annular lower collecting box 13 center fixed 10, upper cover 7 is that the ring pipe 6 by a plurality of different inner diameters closely combines fixedly and forms, lower seal head 19 is that the ring pipe 17 by a plurality of different inner diameters closely combines fixedly and forms, upper cover 7 is fixed on the upper header 9, lower seal head 19 is fixed on the lower collecting box 13, upper cover 7 center fixed have phosphorus pentoxide gas air pipe 5, tubular type superheater 4 is installed in the air pipe 5, lower seal head 19 center fixed have air intake pipe 15, be fixed with yellow phosphorus spray gun 16 on the air intake pipe 15, firing chamber 11 outside Packed metal housings 12, outer cover 12 outsides are provided with thermal insulation layer 22, firing chamber 11 is fixed on the base support 18, intake pipe 14 is connected with lower seal head 19 intake pipes, drum 1 is connected with lower seal head 19 outlet pipes by supply pipe 20, drum 1 is connected with lower collecting box 13 by falling tube 21, drum 1 is connected with upper header 9 by steam lead 23, drum 1 is connected with upper cover 7 steam inlet tubes by steam tube 2, upper cover 7 steam outlet pipes are connected with tubular type superheater 4 steam inlet tubes by steam connection 8, and tubular type superheater 4 steam outlet pipes are connected with main steam pipe 3.

Using method

At first to give yellow phosphorus heat energy recycle device topped up with water, and keep steam water-level in the central position by intake pipe 14; Air enters firing chamber 11 by intake grill 15, yellow phosphorus enters spontaneous combustion in the firing chamber 11 by yellow phosphorus spray gun 16, produce phosphorus pentoxide during yellow phosphorus and discharge a large amount of heats simultaneously, these heats are by the lower seal head 19 in the burned chamber 11 of the form of radiation heat transfer and convection heat exchange, heat absorption tube 10, upper cover 7, water and steam in the tubular type superheater 4 absorb, feedwater obtains preheating at lower seal head 19 and delivers to drum 1 by supply pipe 20, water in the heat absorption tube 10 is vaporized at last because of constantly absorbing heat, form steam water interface, its density is less than on the same horizontal plane density of water in the falling tube 21, steam water interface in the heat absorption tube 10 constantly rises, enter upper header 9, enter drum 1 by upper header 9, at this moment water forms the nature water cycle at drum 1-falling tube 21-lower collecting box 13-heat absorption tube 10-upper header 9-steam guiding tube 23-drum 1, steam water interface carries out carbonated drink separation after entering drum 1, steam enters upper cover 7 by steam tube 2, steam further absorbs heat in upper cover 7 and becomes superheated vapor, superheated vapor is delivered to tubular type superheater 4 by steam connection 8 and is further heated, and the superheated vapor in tubular type superheater 4 after the heating is sent by main steam pipe 3 and utilized; Yellow phosphorus produces phosphorus pentoxide gas and goes hydrated tower synthesize phosphoric acid by air pipe 5, thus the recovery of heat energy when having realized yellow phosphorus, and the generation high-temperature high-pressure overheat steam.

Claims

1. a yellow phosphorus heat energy recycle device is made up of firing chamber, drum, tubular type superheater, yellow phosphorus spray gun, base support; It is characterized in that; The firing chamber is to be made of intensive tubular heat exchanger upper cover and lower seal head; Intensive tubular heat exchanger is closely to arrange the hollow cavity that forms by many heat absorption tubes of annular header center fixed up and down, and last lower seal head is that the ring pipe of a plurality of different inner diameters closely combines fixedly and forms; Upper cover is fixed on the annular header, lower seal head is fixed on down on the annular header, the upper cover center fixed has phosphorus pentoxide gas air pipe, the tubular type superheater is installed in the air pipe, the lower seal head center fixed has air intake pipe, is fixed with the yellow phosphorus spray gun on the air intake pipe, the outside Packed metal housing in firing chamber, the outer cover outside is provided with thermal insulation layer, and the firing chamber is fixed on the base support; The firing chamber disposed outside intake pipe that is connected with lower seal head, the supply pipe that drum is connected with lower seal head, the falling tube that drum is connected with lower collecting box, the steam lead that drum is connected with upper header, the steam tube that drum is connected with upper cover, the steam connection that upper cover is connected with tubular type superheater inlet duct, tubular type superheater outer pipe is connected with main steam pipe.