CN207455555U - A kind of novel steam generator - Google Patents

A kind of novel steam generator Download PDF

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Publication number
CN207455555U
CN207455555U CN201721589263.6U CN201721589263U CN207455555U CN 207455555 U CN207455555 U CN 207455555U CN 201721589263 U CN201721589263 U CN 201721589263U CN 207455555 U CN207455555 U CN 207455555U
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water
entrance
preheater
economizer
outlet
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CN201721589263.6U
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赵文利
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Abstract

A kind of novel steam generator, including furnace body, convection pass and feed pump one, the in vivo top of stove sets coiled coil waterpipe type water-cooling wall, the outlet of feed pump one with the entrance of economizer is connected by water-supply line one, sets gradually superheater, economizer and air preheater one in convection pass from top to bottom;Increase air preheater two, entrance connection air blower two, outlet and the combustion chamber of bottom of furnace body of air preheater two between economizer and air preheater one;Lower part sets feed water preheater in furnace body, the outlet of economizer is respectively communicated with the entrance of feed water preheater and water-cooling wall entrance, feed water preheater is coiled coil increase in pipeline, its outlet is respectively communicated with the entrance of water-cooling wall and the return water entrance of economizer, and feed pump two connects the entrance of feed water preheater;Control valve is equipped on each road water pipeline.The utility model can improve steam quality, the steam injection thermal recovery oil reservoir of 100% mass dryness fraction of production, be reduced using steam heater or not waste discharge.

Description

A kind of novel steam generator
Technical field
The utility model is related to petroleum thermal recovery field steam injection equipment, and in particular to a kind of novel steam generator.
Background technology
In oil exploitation, the oily viscosity in some oily areas is higher, it is necessary to inject oil bearing bed with the steam of higher temperature Heating reduces viscosity of crude, makes oil mined from stratum.
Oil field widely uses combustion gas high voltage direct current wet steam generator to generate steam at present, is injected into each oil well, and shows The saturated vapor dryness of some high voltage direct current wet steam generator production is low, and quality of steam is poor, and combustion gas is of high cost.
By the use of station boiler as crude oil steam for thermal recovery generator, it is necessary to which the desalted water of high standard is as feedwater;Oil field reuse Its salinity of water is excessively high, can not long-term safety operation for station boiler feedwater.
A kind of coal-fired fluidized bed high-pressure dry steam generator is disclosed in the utility model of Patent No. CN201772431U Device, but there are still drawbacks described above.
The content of the invention
It is sent out to solve the above problems, the utility model provides a kind of Novel steam using coal-fired fluidized bed combustion system Raw device improves steam quality, the steam injection thermal recovery oil of 100% mass dryness fraction of production by steam-water separator, superheater, economizer Layer, is reduced or not waste discharge using steam heater.
The utility model adopts the following technical scheme:A kind of novel steam generator, including furnace body, convection pass, institute It states stove in vivo top and coiled coil waterpipe type water-cooling wall is set, the outlet of feed pump one and the entrance of economizer are by water-supply line One connects, and superheater, economizer and air preheater one are set gradually from top to bottom in the convection pass;The economizer and Increase air preheater two between air preheater one, the entrance connection air blower two of the air preheater two, outlet are passed through The combustion chamber of hot air duct and the bottom of furnace body;Lower part sets feed water preheater in the furnace body, the economizer Outlet bifurcated is two-way, and a routing back with water inlet line one connects the entrance of the feed water preheater, and another way is connected by back with water inlet line two Lead to the water-cooling wall entrance;The feed water preheater is coiled coil increase in pipeline, its outlet is respectively by water outlet pipeline one in institute It states and connects the entrance of the water-cooling wall outside furnace body, the return water entrance of the economizer is connected by water outlet pipeline two;Feed pump two-way Cross the entrance that water-supply line two connects the feed water preheater;The water-supply line one, water-supply line two, back with water inlet line one, into Control valve is equipped on water pipeline two, water outlet pipeline one and water outlet pipeline two.
When boiler carrys out coolant-temperature gage less than 50 DEG C, reached through feed pump two in feed water preheater, at this moment pass through control valve control System is so that feedwater is exported by feed water preheater, water outlet pipeline two is connected with the entrance of economizer, the outlet and water inlet of economizer A feedwater circuit of the inlet communication of water-cooling wall in pipeline two, burner hearth;When it is 50 DEG C or more that boiler, which carrys out coolant-temperature gage, recycle-water Economizer is reached through feed pump one, at this moment controls feedwater after being come out from economizer exit to water inlet pipe by control valve The entrance of line one, feed water preheater, a feedwater circuit of feed water preheater outlet water-cooling wall;By the opening of control valve, Close the circulation and closing of control water pipeline.
The beneficial effects of the utility model are as follows:
1) recycle-water of oil field high salinity can be used to substantially reduce oilfield sewage discharge, drop as feedwater for the present apparatus Low production cost;
2) using vertical steam-water separator high temperature superheater is coordinated to improve steam quality, steam heater outlet vapor is done Degree reaches 100%, meets requirement of the heavy crude heat extraction to steam quality;
3) air blower, air preheater and feed water preheater are added, further improves feed temperature, enhances water at low temperature Vaporization effect;
4) the more energy-saving and environmental protection of coal-fired fluidized bed combustion system are used.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Accompanying drawing number:
One 2- feed water preheater 3- economizers of 1- feed pumps
4- water-cooling wall 5- steam-water separator 6- saturated vapor pipelines
7- superheater 8- superheated steam pipeline 9- steam heaters
10- saturation water pipeline 11- steam injection pipe network 12- air blowers one
One 14- hot air duct 15- furnace bodies of 13- air preheaters
16- couples one 17- cyclone separator 18- material returning devices of flue
19- couples two 20- convection pass 21- dedusters of flue
22- is to coal coal scuttle 23- lime bucket 24- water-supply lines one
Two 26- back with water inlet line of 25- water-supply lines, one 27- back with water inlet line two
One 29- water outlets pipeline of 28- water outlets pipeline, two 30- control valves
Two 32- air preheaters of 31- feed pumps, two 33- air blowers two
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings.
Following embodiment is only example of the present invention to clearly illustrate, and not to the limit of embodiments of the present invention It is fixed.For those of ordinary skill in the art, it is various forms of that other can also be made on the basis of the following description Variation changes, and these belong to protection of the spiritual obvious changes or variations drawn of the invention still in the present invention Among scope.
A kind of novel steam generator, including furnace body 15, convection pass 20, the top in the furnace body 15 sets helical disk Around waterpipe type water-cooling wall 4, the outlet of feed pump 1 is connected with the entrance of economizer 3 by water-supply line 1, the convection pass Superheater 7, economizer 3 and air preheater 1 are set gradually in 20 from top to bottom;The economizer 3 and air preheater one Increase air preheater 2 32 between 13, hot wind is passed through in the entrance connection air blower 2 33 of the air preheater 2 32, outlet Pipeline 14 and the combustion chamber of 15 bottom of furnace body;Lower part sets feed water preheater 2, province's coal in the furnace body 15 The outlet bifurcated of device 3 is two-way, and a routing back with water inlet line 1 connects the entrance of the feed water preheater 2, and another way is by intaking Pipeline 2 27 connects 4 entrance of water-cooling wall;The feed water preheater 2 is coiled coil increase in pipeline, its outlet is respectively by going out Water pipeline 1 connects the entrance of the water-cooling wall 4 outside the furnace body 15, connects the economizer 3 by water outlet pipeline 2 29 Return water entrance;Feed pump 2 31 connects the entrance of the feed water preheater 2 by water-supply line 2 25;The water-supply line one 24th, it is equipped on water-supply line 2 25, back with water inlet line 1, back with water inlet line 2 27, water outlet pipeline 1 and water outlet pipeline 2 29 Control valve 30.
When boiler carrys out coolant-temperature gage less than 50 DEG C, reached through feed pump 2 31 in feed water preheater 2, at this moment pass through control valve 30 controls so that feedwater is exported by feed water preheater 2, water outlet pipeline 2 29 is connected with the entrance of economizer 3, economizer 3 Outlet and a feedwater circuit of the inlet communication of water-cooling wall 4 in back with water inlet line 2 27, burner hearth;When boiler carrys out coolant-temperature gage for 50 DEG C More than when, recycle-water reaches economizer 3 through feed pump 1, is at this moment gone out by control valve control feedwater process from economizer 3 Mouth is given after coming out to back with water inlet line 1, the entrance of feed water preheater 2, one of 2 outlet water-cooling wall 4 of feed water preheater Water line;The circulation and closing of water pipeline are controlled by the open and close of control valve 30.
Embodiment one
Fig. 1 is refer to, the utility model is a kind of coal-fired fluidized bed once through steam generator device, including furnace body 15 The feed water preheater 2 of coiled coil and water-cooling wall 4 set in burner hearth;Superheater is set gradually from top to bottom in convection pass 20 7th, economizer 3, air preheater 1, air preheater 2 32;It is also provided with vertical steam-water separator 5 and steam heater 9.
When boiler carrys out coolant-temperature gage less than 50 DEG C, reached through feed pump 2 31 in feed water preheater 2, at this moment pass through control valve Control is so that feedwater is exported by feed water preheater 2, water outlet pipeline 2 29 is connected with the entrance of economizer 3, the outlet of economizer 3 With a feedwater circuit of the inlet communication of water-cooling wall 4 in back with water inlet line 2 27, burner hearth;When boiler carrys out coolant-temperature gage for 50 DEG C or more When, recycle-water reaches economizer 3 through feed pump 1, at this moment controls feedwater by being exported out from economizer 3 by control valve To back with water inlet line 1, the entrance of feed water preheater 2, a feedwater line of 2 outlet water-cooling wall 4 of feed water preheater after coming Road;The circulation and closing of water pipeline are controlled by the open and close of control valve 30.
The outlet of water-cooling wall 4 is connected with the entrance of steam-water separator 5, and the steam on 5 top of steam-water separator is steamed through supersaturation Steam pipe line 6 is connected with the entrance of superheater 7, and the outlet of superheater 7 is connected to 9 steam of steam heater through overheated steam pipe line 8 Entrance, 5 lower part water of steam-water separator is through saturation water pipeline 10 into 9 water inlet of steam heater, and saturated water is with superheated steam in vapour Become the steam of 100% mass dryness fraction after being mixed in water mixer 9, last 9 outlet vapor of steam heater removes thermal recovery steam injection pipe network 11.
The present apparatus does fuel using coal, using recirculating fluidized bed furnace body 15, cyclone separator 17, material returning device 18 and convection current Flue 20 forms.The smoke outlet of the upper furnace of furnace body 15 passes through furnace outlet unicom flue 1 and cyclone separator 17 Entrance connects, and 17 lower end of cyclone separator is connected with material returning device 18, and material returning device 18 is through the burner hearth bottom in piping and furnace body 15 Combustion chamber, the smoke outlet on 17 top of cyclone separator connects by connection flue 2 19 with the entrance of convection pass 20, The outlet of convection pass 20 is connected to deduster 21.
The operation principle of the utility model is as follows:
Coal is added in coal bucket 22, the pulverized limestone of proper proportion is added in lime bucket 23 is added, pulverized limestone plays desulfurization and makees With it is appropriate to control fire box temperature, makes coal clean combustion in burner hearth 15.
Cyclone separator 7 collects the flying dust for not having after-flame in flue gas, and the flying dust separated is returned through material returning device 18 Thorax 15 is melted down, carries out circulating combustion, the circulating ratio of circulating fluidized bed boiler is adjusted by material returning device 18, ensures furnace body warp Ji is safely and steadly run.Through cyclone separator 17 separation after high-temperature flue gas, into convection pass 20, from top to bottom according to It is secondary to wash away superheater 7, economizer 3, air preheater 2 32 and air preheater 1, complete heat exchange.
The air that air blower 1 and air blower 2 33 input is respectively by air preheater 1, air preheater 2 32 It after preheating, is sent by hot air duct 14 in the lower furnace portion of furnace body 15, aftercombustion air, while coal is made to be suspended in furnace body, Fully burning.
Feed pump 1 is input to recycle-water in the convection bank inside economizer 3, utilizes the high temperature in convection pass 2 Flue gas gives the boiler tube (feed water preheater 2 and water-cooling wall 4) in burner hearth 15 after recycle-water is preheated, after burner hearth heats, become For saturation steam water interface, into steam-water separator 5, steam-water separation is realized, the dry saturated steam after separation is drawn by jet chimney 6 Go out, heated through superheater 7, become superheated steam, superheated steam enters steam injection pipe network through 9 steam of steam heater.
The water outlet of steam-water separator lower part enters in steam heater 9 mixed with superheated steam after become steam, so as to reduce Zero-emission is realized in pollution.

Claims (2)

1. a kind of novel steam generator, including furnace body (15), convection pass (20), the top in the furnace body (15) sets spiral shell Capstan is connected around waterpipe type water-cooling wall (4), the outlet of feed pump one (1) with the entrance of economizer (3) by water-supply line one (24), It is characterized in that, superheater (7), economizer (3) and air preheater are set gradually from top to bottom in the convection pass (20) One (13);
Increase air preheater two (32), the air preheater two between the economizer (3) and air preheater one (13) (32) entrance connection air blower two (33), outlet connect by hot air duct (14) and the combustion chamber of the furnace body (15) bottom It is logical;The interior lower part of the furnace body (15) sets feed water preheater (2), and the outlet bifurcated of the economizer (3) is two-way, one route into Water pipeline one (26) connects the entrance of the feed water preheater (2), and another way connects the water-cooling wall by back with water inlet line two (27) (4) entrance;The feed water preheater (2) is coiled coil increase in pipeline, its outlet is respectively by water outlet pipeline one (28) described Furnace body (15) connects the entrance of the water-cooling wall (4), is entered by the return water of water outlet pipeline two (29) the connection economizer (3) outside Mouthful;Feed pump two (31) connects the entrance of the feed water preheater (2) by water-supply line two (25);The water-supply line one (24), water-supply line two (25), back with water inlet line one (26), back with water inlet line two (27), water outlet pipeline one (28) and water outlet pipeline two (29) control valve (30) is equipped on.
2. a kind of novel steam generator as described in claim 1, which is characterized in that when boiler carrys out coolant-temperature gage less than 50 DEG C, It is reached through feed pump two (31) in feed water preheater (2), at this moment by control valve (30) control feedwater by feed-water preheating Device (2) outlet, water outlet pipeline two (29) are connected with the entrance of economizer (3), outlet and the back with water inlet line two of economizer (3) (27), one of the inlet communication of water-cooling wall (4) circuit that feeds water in burner hearth;When it is 50 DEG C or more that boiler, which carrys out coolant-temperature gage, reuse Water reaches economizer (3) through feed pump one (1), at this moment controls feedwater by being exported out from economizer (3) by control valve Come after to back with water inlet line one (26), the entrance of feed water preheater (2), one of feed water preheater (2) outlet water-cooling wall (4) Feed water circuit;The circulation and closing of water pipeline are controlled by the open and close of control valve (30).
CN201721589263.6U 2017-11-23 2017-11-23 A kind of novel steam generator Withdrawn - After Issue CN207455555U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721589263.6U CN207455555U (en) 2017-11-23 2017-11-23 A kind of novel steam generator

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Application Number Priority Date Filing Date Title
CN201721589263.6U CN207455555U (en) 2017-11-23 2017-11-23 A kind of novel steam generator

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Publication Number Publication Date
CN207455555U true CN207455555U (en) 2018-06-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107747726A (en) * 2017-11-23 2018-03-02 赵文利 A kind of novel steam generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107747726A (en) * 2017-11-23 2018-03-02 赵文利 A kind of novel steam generator
CN107747726B (en) * 2017-11-23 2023-09-22 赵文利 Novel steam generator

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