CN106705423A - Direct heating type vertical atmospheric-pressure hot water boiler - Google Patents
Direct heating type vertical atmospheric-pressure hot water boiler Download PDFInfo
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- CN106705423A CN106705423A CN201710054694.0A CN201710054694A CN106705423A CN 106705423 A CN106705423 A CN 106705423A CN 201710054694 A CN201710054694 A CN 201710054694A CN 106705423 A CN106705423 A CN 106705423A
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- water
- boiler
- fin
- fire tube
- water tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
- F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a direct-heating type vertical atmospheric-pressure hot water boiler. The boiler mainly comprises a square water tank, a lower boiler body, a padding chamber, a fin fire pipe, an inlet water distributor, a combustor and the like. The boiler is made of stainless steel overall. Due to the cylindrical design, the strength of the whole structure is improved, the space is saved as well, the boiler is durable in use, and the amount of saved materials is about one third of the amount of consumed materials of other ordinary boilers. Hot water in the boiler can be subjected to secondary heat exchanger due to the reasonable padding combination, the temperature rises quickly, the heat efficiency can reach over 96%, the smoke emission standard is higher than the national standard, and the emitted smoke temperature is about 50 DEG C.
Description
Technical field
The present invention relates to boiler plant technical field, and in particular to a kind of directly-heated vertical normal-pressure water-heating boiler.
Background technology
For city increasingly compacter now, increasingly require to save space, improve land utilization ratio.Nowadays city
The hot-water boiler commonly used on face is usually Horizontal gas hot-water boiler, and its profile uses cuboid or long round body structure mostly, accounts for
It is larger with space, and internal structure is complicated, generally fire cylinder lies in a horizontal plane in lower portion of furnace body, and the flue gas produced after burning is by multiple
Smoke pipe is contacted with water, and then reaches the purpose of heat exchange.In order to reach more preferable heat exchange efficiency, smoke-fire-tube needs to be formed in body of heater
Several backhauls.So allow for body of heater inner structure sufficiently complex, and very heavy, for processing, manufacture, install and dimension in the future
Repair maintenance and increased certain cost.In terms of the thermal efficiency, service life more long easier fouling, heat exchange efficiency is lower.Therefore, mesh
Preceding in the market Structure of need is compact, take up an area less, high combustion efficiency, the vertical normal-pressure water-heating boiler that is easily installed and safeguards.
The content of the invention
In order to solve problem present in above-mentioned background technology, the present invention provides a kind of directly-heated vertical normal-pressure water-heating boiler.
The boiler body uses tubular vertical structure, has not only ensured its bulk strength but also save space, while saving material；Inside uses wing
Piece fire tube simultaneously uses combined stuffing, substantially increases heat exchange area and heat exchange efficiency；In addition, by for overall structure and respectively
The optimal design-aside of part so that heat up quick, the thermal efficiency is high.
To achieve the above object, the present invention provides a kind of directly-heated vertical normal-pressure water-heating boiler, the boiler include water tank, under
Body of heater, filler chamber, fin fire tube, inlet distribution device and burner, wherein,
The water tank is located at boiler foot, using independent square (rectangle) cabinet design.Use this form can be with
Greatly increase the volume of water tank, and can as requested with actual condition flexible configuration, be easily installed and safeguard.
Water tank bottom is provided with outlet pipe and drain, and water tank upper is provided with the first water inlet pipe and overfall.Outlet pipe
For making the hot water after heating be transferred out by outlet pipe；Drain be used for the water in water tank in maintenance of equipment maintenance and
The impurity discharge of precipitation；During first water inlet pipe is used to make recirculated water directly return to water tank；In overfall and water tank at liquid level limit for height
Etc. high setting, for making the water in water tank more than liquid level limit for height be discharged from overfall as early as possible, it is ensured that liquid level safety in water tank.
Water tank internal edge is vertically arranged with liquid level tube, and liquid level tube protrudes upward tank top and has upper port, is used for
Used cooperatively with liquid level sensor, transmit and control high water tank.In one embodiment, for guarantee liquid level sensor can be more
It is good more accurately to transmit liquid level signal, a number of circular hole is provided with different depth on liquid level tube to avoid impurity and incrustation scale
Influence to liquid level tube, more accurately transmits liquid level information.It is preferred that setting 10-30 circular hole on liquid level tube, more preferably set
20 circular holes.
In one embodiment, visual liquid level gauge is additionally provided with water tank exterior lateral sides, intuitively to observe high water tank.
Used cooperatively by visual liquid level gauge and liquid level sensor, can more accurately and timely obtain liquid level information, play dual fail-safe
Effect.Above-mentioned visual liquid level gauge can use commercial goods with liquid level sensor.
Further, part of the outlet pipe inside water tank is further preferably provided with multiple side openings in addition to port in tube wall,
Can so increase water-outlet area, reduce the influence for delivery port because of impurity and incrustation scale, can be preferably defeated by the water after heating
See off, play a part of to protect pump to a certain extent.The side opening can be for circle, ellipse, rectangle, hexagon etc. often
See shape；Side opening quantity can be configured according to actual condition and construction requirement, for example, 2-16, or 6-12.
The lower furnace body is hollow barrel-type, is inserted vertically into inside water tank.Lower furnace body bottom is supported on by several supporting legs
Water tank bottom, plays a part of to support top filler chamber；Lower furnace body bottom connects with water tank, therefore lower furnace body also acts as connection and fills out
Material room and the effect of water tank.This set is conducive to the miniaturization of boiler body, and can flexibly set water tank capacity.
Described filler room is arranged on lower furnace body, and inside connects with lower furnace body for it, for accommodate filler, fin fire tube and
Inlet distribution device.Filler chamber can be integrally formed with lower furnace body, it is also possible to be separately molded by conventional sectional skill with lower furnace body
Art is attached as welded.
Filler chamber bottom is provided with well word support, which is provided with dividing plate net, and filler chamber and lower furnace body is separated.Dividing plate
Online to be disposed with structured packing and random packing, random packing is located at structured packing top.Wherein random packing can be selected
Select one or more in Pall ring, rectangular saddle ring and eight or four in arc ring.In one embodiment, random packing is Pall ring.
In addition, structured packing can select metal corrugated packing.What boiler filler of the present invention was selected is structured packing under, random packing
In upper combination, by so setting, can as much as possible expand the heat exchange area of flue gas.When flue gas is by filler chamber, its
In structured packing first the flue gas generated after burning is broken up, and it is increased from all directions multi-angle, then coordinate scattered landfill
The water sprayed down on material and inlet distribution device carries out pre- heat exchange, by the heat exchange in flue gas out, and drops exhaust gas temperature
It is low to less than 50 DEG C.So while heat is fully utilized, stove effect is also improved.
Fin fire tube is located at filler chamber center and runs through filler chamber vertically downward, and top is connected with burner, and bottom is stretched into
To ullage in lower furnace body.The tube wall of fin fire tube and filler close contact, its surface have multiple fins, considerably increase
The effective heat exchange area of its own.In one embodiment, fin be strip and with fire tube diameter parallel.In an implementation
In scheme, fin is located in the plane by fire tube axis.In one embodiment, the quantity of fin is 4-16, preferably 8
It is individual.In one embodiment, fin width is the 1/6-1/12 of fin fire tube internal diameter, preferably 1/10.By the pipe in fire tube
Increase fin on wall, not only increase heat transfer area, while upset the frequency of noise in combustion, play reduction noise,
Less effect of vibration, contributes to the whole service life of prolonged boiler.
Inlet distribution device is to set water pipe circlewise, positioned at filler chamber top, by fin fire tube set wherein and and wing
Piece fire tube is coaxially disposed, and sprayed on fire tube wall, fin and in filler by nozzle thereon for that will be intake.In filler
Room top is provided with the second water inlet pipe, and the second water inlet pipe is connected with inlet distribution device.Preferably, nozzle includes horizontal nozzle and longitudinal direction
Nozzle, and two kinds of nozzle is uniform along inlet distribution device.The horizontal nozzle can use the narrow angle nozzle of solid cone shaped, make
Must intake uniform without on dead angle ground transverse injection to fin fire tube from the nozzle, and replace the heat moment that burning is produced.It is vertical
Spiral nozzle can be used to nozzle, equably can be ejected into flue gas for water inlet by it, and be distributed in random packing top, using scattered
Heap filler increases heat exchange area, reaching the purpose of high efficient heat exchanging.In one embodiment, on horizontal nozzle and fire tube wall
Fin be correspondingly arranged so that be directly injected to water on fin by horizontal nozzle, to be effectively increased heat exchange area, and utilizes wing
Piece further breaks up transverse jet jetting, increases heat exchange efficiency.In one embodiment, the water pipe caliber of inlet distribution device is
The 1/3-1/5 of fin fire tube internal diameter, preferably 1/4.
Outside water tank and filler chamber, the first water inlet pipe and the second water inlet pipe are connected by electric three-way ball valve with water inlet manifold
Connect, such that it is able to manual or automatic control water inlet flow direction, can not only realize the switching of water inlet flow direction, can also make three passages mutual
Connection, can also close any passage, make two other channel connection, interflow or shunting in flexible control piper.The threeway
Electrical ball valve can be using existing product in this area.In one embodiment, in order that the setting of water inlet pipe is more clever
Activity, to match different boiler heights designs and be easy to boiler to assemble and repair, the first water inlet pipe and/or the second water inlet pipe
It is upper to carry length orthotics.
In one embodiment, the fin fire tube place of protruding upward is provided with water-ring at the top of filler chamber, and water-ring is by wing
Piece fire tube is closely surrounded, and may be escaped filler chamber and be entered burner with the horizontal water spray for stopping inlet distribution device.In a reality
Apply in scheme, the ring wall thickness of water-ring is the 1/3-2/3 of the chamber wall thickness of filler chamber, preferably 1/2.
In one embodiment, led in filler chamber interior walls circumference and being additionally provided between inlet distribution device and random packing
Wherein and with fire tube be coaxially disposed fin fire tube set by stream ring, guide ring.It is sloped downwardly in funnel-form in guide ring, so that
The water of longitudinal direction injection can be stopped, in it is not flowed to water tank along filler chamber interior walls, stopped in filler with improving shower water
Time.In one embodiment, the ring wall thickness of guide ring is the 1/3-2/3 of the chamber wall thickness of filler chamber, preferably 1/2.
In one preferred embodiment, the uniform multiple small opening on guide ring, to improve longitudinal direction water spray for guide ring lower section filler
Spraying effect, increases heat exchange area, improves residence time of the shower water in filler.In one embodiment, small opening diameter
It is the 2/3-4/3 of the chamber wall thickness of filler chamber, the preferably chamber wall thickness with filler chamber is equal.
Burner is located at filler chamber's top outer, is connected with the fin fire tube that filler chamber is stretched out from top.The present invention is optional
Efficiency energy saving burner of the prior art is used, to ensure its safe and reliable use under various extreme environmental conditions.Burning
Device is installed vertically on the top of boiler, can make full use of vertical space, burner blower fan is connected with thereon, for directing the air into
Burner helps burn.In addition, filler chamber's top outer is additionally provided with chimney, for filler top to be arranged by the flue gas of heat exchange
Go out filler chamber.
In order to further improve flue gas mass on the original basis, technical solution of the present invention is in burner blower fan and chimney
Between can also utilize device with flue gas recirculation.The flue gas recirculation includes that the air inlet in air inlet pipe, air inlet pipe is held using device
Flue gas actuator on row device, flue gas recirculation pipe and flue gas recirculation pipe, air inlet pipe one end is air inlet, air inlet is followed successively by thereafter and is held
Row device, three-way connection, the other end are connected to burner blower fan；Flue gas recirculation pipe one end connection chimney side wall, the other end passes through three
Pass joint is connected to air inlet pipe, and middle setting has flue gas actuator.Its operation principle is：The cigarette from chimney discharge is collected first
Gas, flue gas partial is drawn, respectively through flue gas recirculation pipe and air inlet pipe, subsequently into the air inlet of burner blower fan, part
Burning is continued to participate in instead of air.Because now oxygen content is relatively low in flue gas, it is possible to controlling ignition temperature well, suppress
NOxGeneration；Most of CO in same flue gas can also be consumed in second-time burning, not only save fuel, control burning
Temperature, and fume emission index is above national standard.In order to not influence the normal work of burner, can be by flue gas
Actuator and air inlet actuator control the air inflow of flue gas and air according to a certain percentage, to reach optimal combustion efficiency.
In one embodiment, deaeration filter is also equipped with chimney.Can be containing certain by the flue gas after heat exchange
The water vapour of amount, when by deaeration filter, after condensation in supplement recovery tank by water vapor filtering out.The deaeration is filtered
Device can use the moisture filter for boiler as known in the art.In one embodiment, the deaeration filter
It is mist arrester.The mist arrester has multiple along the axial arranged suction mist plate of chimney, and the vapor in flue gas is inhaled by these
During mist plate, can be condensed on suction mist plate due to inhaling the obstruction of mist sheet separation formation, then collect, be back in water tank.
In one embodiment, in order to reduce the noise that burner and burner blower fan are operationally produced, in burning
Silencing means is additionally provided with outside device and burner blower fan, the silencing means includes silencer cover, by burner and burner wind
Hood is wherein.Preferably, it is also covered with Sound-proof material in noise reduction cover inner surface.In one embodiment, in order to further drop
Low noise, is additionally provided with muffling hole plate on silencer cover, and the muffling hole plate can use commercial goods.
Directly-heated vertical normal-pressure water-heating boiler of the invention, integral material can select stainless steel；Tubular design not only increases
Integrally-built intensity, and save space, durable, it is 1/3rd or so of other plain cylindrical furnaces to save material.
Water tank is conducive to the miniaturization of boiler body with the separation design of boiler body, and can flexibly set water tank capacity.The present invention
Boiler can be identical with plain cylindrical furnace in control system, can be using switch board or integrated circuit modules to burner, water temperature, liquid level
And security alerting system is controlled, high degree of automation is simple to operate efficient, so as to reduce labor intensity.Fuel is preferably adopted
With clean energy resource, such as natural gas, liquefied petroleum gas, biogas.
Water circulation system is provided with two flows in the present invention：I, under boiler working condition, by electric three-way ball valve
Control is first shut off the first water inlet pipe, opens the second water inlet pipe so that cold water enters inlet distribution device through the second water inlet pipe, passes through
Horizontal nozzle and longitudinal nozzle on inlet distribution device are sprayed and exchanged heat in fin fire tube and filler, by after heat exchange
Hot water enters water tank, and the outlet pipe outflow boiler for passing through water tank bottom；II, when hot water temperature reaches preset temperature, boiler stops
When only working, the second water inlet pipe is closed by the control of electric three-way ball valve, open the first water inlet pipe, so circulating water inlet can
To be returned directly in water tank, it is ensured that hot water can be circulated in most short flow, the loss of heat is reduced to greatest extent.
The invention has the advantages that：
1st, boiler body is vertical structure, and space has been saved while material-saving cost.Integral material selects stainless steel
Material, good appearance, durable.Tank parts use square self-contained water tank, can as much as possible increase water tank capacity, can install
In in various environment.
2nd, filler chamber's inner utilization structured packing is positioned over lower section, and random packing is placed in top and uses cooperatively, it is possible to increase
The heat exchange area and heat exchange angle of flue gas and water；The flue gas of rising passes sequentially through structured packing and random packing, and sprays down
Cold water carry out pre- heat exchange, by the heat exchange in flue gas out, make exhaust gas temperature less than 50 DEG C, with plain cylindrical furnace exhaust gas temperature
100 DEG C or so are compared, and stove effect is significantly lifted.
3rd, the top of filler is provided with guide ring, can stop the water spray of longitudinal direction injection, makes it will not be along filler chamber interior walls
In flowing to water tank, to improve residence time of the water spray in filler.
4th, fin fire tube is vertically built in filler chamber, and fin is evenly distributed with thereon, not only increases heat transfer area, is subtracted
Few heat transfer time, while upsetting the frequency of noise in combustion, plays reduction noise, less effect of vibration, helps to prolong
The overall service life of boiler long.
5th, inlet distribution device can substantially reduce resistance of the cold water in distributor, and the nozzle installed thereon can be high by water inlet
Effect injection is utilized, and is used cooperatively with filler, to reach optimal heat transfer effect；Inlet distribution device transverse direction nozzle uses solid cone shaped
Narrow angle nozzle, water inlet is uniformly ejected on fin fire tube without dead angle；Longitudinal nozzle uses spiral nozzle, and water inlet is ejected into
In flue gas and filler.
6th, the design of water-ring avoids the possibility laterally sprayed water and be upwardly into burner and fin fire tube well.
7th, burner is disposed vertically while upper boiler, save space, and burning can be made using the rational structure of boiler
It is greatly improved with heat exchange efficiency.
8th, flue gas recirculation is added between burner and chimney and utilizes device, it is available in the flue gas that will can be discharged after burning
Part rekindles utilization, reduces the generation of harmful substance, and its fume emission indices is above national respective standard.
9th, deaeration filter can supplement back cubic water tank, during boiler operatiopn by the Mist filtration in flue gas out after condensation
Water loss is few.Suction mist plate on mist arrester are folded to the chance that structure greatly increased water vapor adsorption more, are not removed
The vapor for going is acted on by identical at next turning and is adsorbed, such repeated action, is removed so as to substantially increase
The efficiency of steam.
10th, this boiler water cycle system ensures the hot water after heating with most short by two different recirculated water flows
Flow is circulated, and reduces the lost speed of heat.
11st, side opening is provided with outlet pipe water tank inner segment tube wall, circular hole is provided with liquid level tube, be conducive to water outlet and liquid level to survey
Amount.
12nd, it is furnished with silencing means on burner, it is possible to decrease noise when boiler works.Either blower fan still combustion gas in itself
Certain noise can be all produced during burning, noise can be substantially reduced using silencer cover.
Brief description of the drawings
Fig. 1 is the schematic overall structure profile of directly-heated vertical normal-pressure water-heating boiler of the present invention.
Fig. 2 is the structural representation of inlet distribution device in directly-heated vertical normal-pressure water-heating boiler of the present invention.
Fig. 3 is the structure proportion schematic diagram of fin fire tube in directly-heated vertical normal-pressure water-heating boiler of the present invention.
Fig. 4 is that flue gas recirculation is shown using the structure of device and silencing means in directly-heated vertical normal-pressure water-heating boiler of the present invention
It is intended to.
Fig. 5 is the enlarged diagram of " I " part in Fig. 1.
Fig. 6 is the enlarged diagram of " II " part in Fig. 1.
Wherein reference：
1st, visual liquid level gauge 2, square (rectangular) shape water tank 3, liquid level tube 4, lower furnace body 5, well word support 6, dividing plate net
7th, structured packing 8, random packing 9, filler chamber 10, fin fire tube 11, guide ring 12, spiral nozzle 13, solid cone shaped are narrow
Angle nozzle 14, muffling hole plate 15, silencer cover 16, burner blower fan 17, air inlet pipe 18, air inlet actuator 19, flue gas are held
Row device 20, burner 21, flue gas recirculation pipe 22, Sound-proof material 23, chimney 24, mist arrester 25, water-ring 26, inlet distribution
Device 27, the second water inlet pipe 28, length orthotics 29, electric three-way ball valve 30, the first water inlet pipe 31, overfall 32, branch
Support leg 33, outlet pipe 34, drain.
Specific embodiment
To make the object of the invention, technical scheme and feature clearer, enter respectively according to different flows below in conjunction with the accompanying drawings
Row description.It should be understood that herein below is used to illustrate the present invention, but it is not limited to the scope of the present invention.
As shown in Figure 1, it is shown that the schematic overall structure profile of directly-heated vertical normal-pressure water-heating boiler of the present invention.Wherein
The boiler includes that cubic water tank 2, lower furnace body 4, filler chamber 9, fin fire tube 10, inlet distribution device 26 and burner 16 etc. are main
Part.The bottom of water tank 2 is provided with outlet pipe 33 and drain 34, and the top of water tank 2 is provided with the first water inlet pipe 30 and overfall 31.
The internal edge of water tank 2 is vertically arranged with liquid level tube 3, and liquid level tube 3 protrudes upward the top of water tank 2 and has upper port,
For being used cooperatively with liquid level sensor.To ensure that liquid level sensor more preferably can more accurately transmit liquid level signal, in liquid level tube 3
20 circular holes are provided with upper different depth.Visual liquid level gauge 1 is additionally provided with the exterior lateral sides of water tank 2, intuitively to observe water box liquid
Position.Part of the outlet pipe 33 inside water tank 2 is also provided with 10 circular side holes in addition to port in tube wall, so can increase
Water area.
Lower furnace body 4 is hollow barrel-type, is inserted vertically into inside water tank 2.The bottom of lower furnace body 4 is supported on by several supporting legs 32
The bottom of water tank 2, supports top filler chamber 9；The bottom of lower furnace body 4 connects with water tank 2, so that under the hot water after heat exchange passes through
The bottom of body of heater 4 enters in water tank 2.
Filler chamber 9 is arranged on lower furnace body 4, and it is connected with the inside of lower furnace body 4, for accommodating filler 7,8, fin fire tube
10 and inlet distribution device 26.The bottom of filler chamber 9 is provided with well word support 5, which is provided with dividing plate net 6, by filler chamber 9 and lower furnace body
4 is separated.Structured packing 7 and random packing 8 are disposed with dividing plate net 6.Wherein random packing 8 is Pall ring；It is regular
Filler 7 is metal corrugated packing.
Fin fire tube 10 is located at the center of filler chamber 9 and runs through filler chamber 9 vertically downward, and top is connected with burner 20, under
Stretch into lower furnace body 4 to ullage in portion.As shown in figures 1 and 3, the tube wall of fin fire tube 10 and filler 7,8 close contacts, its
Surface has 8 fins, considerably increases the effective heat exchange area of its own.Fin is located at by the plane of the axis of fire tube 10
It is interior.As shown in figure 3, fin width is the 1/10 of the internal diameter of fin fire tube 10.
As depicted in figs. 1 and 2, water pipe of the inlet distribution device 26 for setting circlewise, positioned at the top of filler chamber 9, by fin
10 sets of fire tube is coaxially disposed wherein and with fin fire tube 10, for that will intake by nozzle 12,13 thereon to fire tube wall, wing
Sprayed on piece and in filler.The second water inlet pipe 27, the second water inlet pipe 27 and inlet distribution device 26 are provided with the top of filler chamber 9
Connection.Nozzle on inlet distribution device 26 includes the horizontal narrow angle nozzle 13 of solid cone shaped and longitudinal spiral nozzle 12, and two species
The nozzle of type is uniform along inlet distribution device 26.Horizontal nozzle 13 is correspondingly arranged with the fin on fire tube wall so that horizontal nozzle
13 are directly injected on fin water, to be effectively increased heat exchange area and heat exchange efficiency.In another embodiment, intake
The water pipe caliber of distributor 26 is the 1/4 of the internal diameter of fin fire tube 10.
As shown in figure 1, outside water tank 2 and filler chamber 9, the first water inlet pipe 30 and the second water inlet pipe 27 pass through electric three-way
Ball valve 29 is connected with water inlet manifold, such that it is able to automatically control into water flow direction, realizes the switching of water inlet flow direction, flexible control piper
In interflow or shunting.In addition, carry length orthotics 28 on the second water inlet pipe 27, with match different boiler heights designs with
And it is easy to boiler to assemble and repair.
As shown in Figure 1 and Figure 5, water-ring 25, water-ring 25 are provided with the place of protruding upward of 9 top fin fire tube of filler chamber 10
Fin fire tube 10 is closely surrounded, filler chamber 9 may be escaped and be entered burner with the horizontal water spray for stopping inlet distribution device 26
20.In one embodiment, the ring wall thickness of water-ring 25 is the 1/2 of the wall thickness of filler chamber 9.
As shown in figures 1 to 6, it is additionally provided with the inwall circumference of filler chamber 9 and between inlet distribution device 26 and random packing 8
10 sets are coaxially disposed fin fire tube wherein and with fin fire tube 10 by guide ring 11, guide ring 11.The inner side of guide ring 11 is downwards
It is in funnel-form to incline, so that the water of longitudinal direction injection can be stopped, in it is not flowed to water tank 2 along the inwall of filler chamber 9.At one
In embodiment, the ring wall thickness of guide ring 11 is the 1/2 of the wall thickness of filler chamber 9.The uniform multiple small opening on guide ring 11, to carry
Spraying effect of the longitudinal direction water spray high for the lower section filler 7,8 of guide ring 11.In one embodiment, small opening diameter and filler chamber
9 chamber wall thickness is equal.
As shown in figure 1, burner 20 is located at the top outer of filler chamber 9, with the fin fire tube 10 that filler chamber 9 is stretched out from top
Connection.The top outer of filler chamber 9 is additionally provided with chimney 23, for the top of filler 8 to be discharged into filler chamber 9 by the flue gas of heat exchange.
As shown in Figure 1 and Figure 4, in order to further improve flue gas mass on the original basis, in the He of burner blower fan 16
Can also utilize device with flue gas recirculation between chimney 23, the device include air inlet pipe 17, air inlet pipe on air inlet actuator 18,
Flue gas actuator 19 on flue gas recirculation pipe 21 and flue gas recirculation pipe, one end of air inlet pipe 17 is air inlet, and air inlet is followed successively by thereafter
Actuator 18, three-way connection, the other end is connected to burner blower fan 16；The one end of flue gas recirculation pipe 21 connects the side wall of chimney 23, separately
One end is connected to air inlet pipe 17 by three-way connection, and middle setting has flue gas actuator 19.
As shown in figure 1, being also equipped with mist arrester 24 in chimney 23.Mist arrester 24 has multiple axial arranged along chimney 23
Mist plate is inhaled, the vapor in flue gas can be adsorbed due to inhaling the obstruction of mist sheet separation formation, condensed when mist plate is inhaled by these
On mist plate is inhaled, then collect, be back in water tank 2.
As shown in Figure 1 and Figure 4, in order to reduce the noise that burner 20 and burner blower fan 16 are operationally produced, in combustion
Silencing means is additionally provided with outside burner 20 and burner blower fan 16, the silencing means includes silencer cover 15, table in silencer cover 15
Face is also covered with Sound-proof material 22, and muffling hole plate 14 is additionally provided with silencer cover 15.
Water circulation system is provided with two flows in the present invention, as shown in Figure 1：
I, under boiler working condition, the first water inlet pipe 30 is first shut off by the control of electric three-way ball valve 29, open
Second water inlet pipe 27 so that cold water enters inlet distribution device 26 through the second water inlet pipe 27, by the transverse direction on inlet distribution device 26
Nozzle 13 and longitudinal nozzle 12 are sprayed and exchanged heat in fin fire tube 10 and filler 7,8, are entered by the hot water after heat exchange
Cubic water tank 2, and the outflow boiler of outlet pipe 33 for passing through water tank bottom；
II, when hot water temperature reaches preset temperature, and boiler is stopped, closed by the control of electric three-way ball valve 29
Second water inlet pipe 27, opens the first water inlet pipe 30, and so circulation water inlet can be just returned directly to square by the first water inlet pipe 30
Water tank 2, it is ensured that hot water can be circulated in most short flow, reduces the loss of heat to greatest extent.
Directly-heated vertical normal-pressure water-heating boiler of the invention, fully, the thermal efficiency can reach more than 97%, energy-saving ring to heat transfer efficient
Protect, smog discharge temperature can be less than 50 DEG C.Because rationally applying flue gas recirculation utilizes device, fuel is efficiently make use of；Simultaneously
Improve environmental protection index：CO, NO, NO in flue gasxContent reaches《Atmosphere of Beijing pollutant emission standard》.Boiler is not integrally using
Rust steel construction, temperature is balanced, and calcium, magnesium plasma cannot be separated out in water, non-scaling, so need not be carried out at softening to water quality
Reason.On this boiler structure use cubic water tank and independent design, compact conformation, save material, flexible configuration, its weight equivalent to
The 25%-35% of plain cylindrical furnace.Shared space saves space equivalent to the 55% of plain cylindrical furnace, while protecting well
The overall construction intensity of boiler is demonstrate,proved.Application place includes school, factory, outdoor bathing place, hotel, hospital, home for destitute, enterprises and institutions' list
The heat supply heating projects such as position, stadiums, warm water swimming pool, dormitory.Directly-heated vertical normal-pressure water-heating boiler of the invention is in control
Can be identical with plain cylindrical furnace in system, can be using switch board or integrated circuit modules to burner, water temperature, liquid level and security alarm
System is controlled, high degree of automation, simple to operate efficient, so as to reduce labor intensity.Fuel can use clean energy resource,
Such as natural gas, liquefied petroleum gas and biogas etc..
Although the present invention is described in detail above to have used general explanation and specific embodiment, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. a kind of directly-heated vertical normal-pressure water-heating boiler, the boiler includes water tank, lower furnace body, filler chamber, fin fire tube, enters moisture
Cloth device and burner, it is characterised in that
The water tank is located at boiler foot, and the water tank bottom is provided with outlet pipe and drain, and water tank upper is provided with the
One water inlet pipe and overfall, water tank internal edge are vertically arranged with liquid level tube, and the liquid level tube protrudes upward tank top and has
There is upper port, the water tank exterior lateral sides are additionally provided with visual liquid level gauge；
The lower furnace body is hollow barrel-type, is inserted vertically into inside water tank, and the lower furnace body bottom is supported on water tank by supporting leg
Bottom, and lower furnace body bottom connects with water tank；
Described filler room is arranged on lower furnace body, and it is connected with lower furnace body inside, and described filler room bottom is provided with well word branch
Frame, which is provided with dividing plate net, and dividing plate is disposed with structured packing and random packing on the net, and random packing is located in structured packing
Side；
The fin fire tube is located at filler chamber center and runs through filler chamber vertically downward, and top is connected with the burner, bottom
Stretch into water tank to ullage；
The inlet distribution device is to set water pipe circlewise, positioned at filler chamber top, by fin fire tube set wherein and and wing
Piece fire tube is coaxially disposed；Uniform nozzle on inlet distribution device；The second water inlet pipe, the second water inlet pipe are provided with described filler room top
It is connected with the inlet distribution device；
The burner is located at filler chamber's top outer, is connected with the fin fire tube that filler chamber is stretched out from top；Described filler room
Top outer is additionally provided with chimney；Wherein,
Outside the water tank and filler chamber, first water inlet pipe and the second water inlet pipe are by electric three-way ball valve and total water inlet
Pipe is connected.
2. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 1, it is characterised in that the structured packing is wavy metal
Filler；The random packing is Pall ring, one or more in rectangular saddle ring and eight or four in arc ring.
3. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 1, it is characterised in that have on the fin fire tube surface
Strip fin, fin and fire tube diameter parallel；The quantity of fin is 4-16, and fin width is the 1/6- of fin fire tube internal diameter
1/12。
4. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 3, it is characterised in that the nozzle on the inlet distribution device
Including horizontal nozzle and longitudinal nozzle, and the two kinds of nozzle is uniform along inlet distribution device；The horizontal nozzle is real
Heart tapered narrow angle nozzle, the longitudinal nozzle is spiral nozzle；Fin on the horizontal nozzle and the fin fire tube surface
It is correspondingly arranged so that be directly injected to water on fin by horizontal nozzle.
5. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 4, it is characterised in that the water pipe pipe of the inlet distribution device
Footpath is the 1/3-1/5 of the fin fire tube internal diameter.
6. the directly-heated vertical normal-pressure water-heating boiler as any one of claim 1-5, it is characterised in that the boiler is in institute
State between burner blower fan and chimney and also to utilize device with flue gas recirculation, the flue gas recirculation using device include air inlet pipe,
The flue gas actuator on air inlet actuator, flue gas recirculation pipe and flue gas recirculation pipe in air inlet pipe, described air inlet pipe one end be into
Gas port, is followed successively by thereafter air inlet actuator, three-way connection, and the other end is connected to burner blower fan；Described flue gas recirculation pipe one end
Connection chimney side wall, the other end is connected to air inlet pipe by three-way connection, and middle setting has flue gas actuator.
7. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 6, it is characterised in that boiler wing at the top of filler chamber
The piece fire tube place of protruding upward is provided with water-ring, and the water-ring closely surrounds fin fire tube.
8. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 7, it is characterised in that the boiler is justified in filler chamber interior walls
Week and it is additionally provided with guide ring between inlet distribution device and random packing, fin fire tube is covered wherein and same with fire tube by guide ring
Axle is set, and is sloped downwardly in guide ring in funnel-form, and uniform multiple small opening on guide ring.
9. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 8, it is characterised in that the boiler is in burner and burning
Silencing means is additionally provided with outside device blower fan, the silencing means includes silencer cover, Sound-proof material and muffling hole plate.
10. directly-heated vertical normal-pressure water-heating boiler as claimed in claim 9, it is characterised in that be also equipped with inhaling in the chimney
Day with fog；And length orthotics are carried on first water inlet pipe and/or the second water inlet pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710054694.0A CN106705423A (en) | 2017-01-24 | 2017-01-24 | Direct heating type vertical atmospheric-pressure hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710054694.0A CN106705423A (en) | 2017-01-24 | 2017-01-24 | Direct heating type vertical atmospheric-pressure hot water boiler |
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| CN106705423A true CN106705423A (en) | 2017-05-24 |
Family
ID=58909705
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710054694.0A Pending CN106705423A (en) | 2017-01-24 | 2017-01-24 | Direct heating type vertical atmospheric-pressure hot water boiler |
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