CN207146350U - A kind of residual heat from boiler fume recovery system - Google Patents
A kind of residual heat from boiler fume recovery system Download PDFInfo
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- CN207146350U CN207146350U CN201720860088.3U CN201720860088U CN207146350U CN 207146350 U CN207146350 U CN 207146350U CN 201720860088 U CN201720860088 U CN 201720860088U CN 207146350 U CN207146350 U CN 207146350U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
It the utility model is related to a kind of residual heat from boiler fume recovery system, including First Heat Exchanger, intake pump, go out water pump, the second heat exchanger, negative pressure evaporation room, vavuum pump and water vapour compressor；The gas approach of First Heat Exchanger connects with the first flue, the delivery port of First Heat Exchanger with it is described go out water pump water inlet connect；The gas approach of second heat exchanger connects with flue, the exhanst gas outlet of second heat exchanger is connected with the second flue gas house steward into the next step purified treatment to flue gas, the water inlet of second heat exchanger connects with going out the delivery port of water pump, the delivery port of second heat exchanger connects with the water inlet of negative pressure evaporation room, provides the hot water heated again to negative pressure evaporation room and forms steam in negative pressure evaporation room；The steam (vapor) outlet of negative pressure evaporation room connects with the steam inlet of water vapour compressor, and the steam (vapor) outlet of water vapour compressor connects with for the jet chimney that steam uses.Fume afterheat production steam can be utilized to reduce the production cost of steam.
Description
Technical field
It the utility model is related to field of heat exchange, more particularly to a kind of residual heat from boiler fume recovery system.
Background technology
Boiler is widely used in fields such as China's steel, electric power, metallurgy, building materials, generating, petrochemical industry, light industry, coal, heating power.
For China's boiler based on coal-fired, combustion gas, industrial boilers in China current combustion exhaust emissions temperature design requires general control at present
More than 130 DEG C of degree.According to China《Boiler energy-saving technical supervision rule of management》：" exhaust gas temperature design, which should integrate, to be examined
Consider the security and economy of boiler, and meet claimed below：(1) rated capacity is less than 1t/h steam boiler, not high
In 230 DEG C；(2) rated capacity is less than 0.7MW steam boiler, not higher than 180 DEG C." consider power saving, boiler producer
It is usually 130 DEG C~150 DEG C to design exhaust gas temperature, but the burning such as among actual motion, consideration is leaked out, back-end surfaces product
Operating mode, actual exhaust gas temperature is high, and exhaust gas temperature often raises 10 DEG C, and boiler thermal output about declines 1%, therefore, boiler
Operational efficiency directly affects the economic benefit of enterprise and is closely related with energy conservation.
At present, Chinese large-sized Industrial Boiler, especially electricity generation boiler, flue-gas temperature is typically at 150 DEG C after catalytic denitration
Between~160 DEG C, after dedusting flue-gas temperature be more than 140 DEG C, after desulfurizer flue-gas temperature be reduced to 70 DEG C~
Between 80 DEG C, after the further depth emission treatment of flue gas, flue gas end exhaust gas temperature is typically more than 50 DEG C.How with most economical
Mode, realize as far as possible residual heat from boiler fume depth reclaim, reduce harmful substances from flue gases discharge, reduce haze formed because
Element is significant for China's energy-saving and emission-reduction, environmental protection.
It is widely available with China's water vapour compressor, realized using water vapour Compressor Technology to residual heat from boiler fume
Depth is reclaimed and produced and can be possibly realized using steam.The general principle of water vapour compressor is to drive to rotate at a high speed by motor
Blade wheel structure, by acting, the indirect steam (temperature is low, pressure is low) of the process such as (distillation) will be evaporated through overcompression, improved
Its temperature, pressure and heat content, the material evaporated is needed as thermal source heating again.Water vapour compression owner will be by compression system
Three system, steam cooling device and lubricating system elementary cell compositions.Water vapour compressor is at the concentration of China's material, waste water at present
Reason and the field such as waste heat recovery are widely used, technology maturation, reliable.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of residual heat from boiler fume recovery system, can utilize cigarette
Gas waste heat produces steam so as to reduce the production cost of steam.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of residual heat from boiler fume recovery system, bag
Include First Heat Exchanger, intake pump, go out water pump, the second heat exchanger, negative pressure evaporation room, vavuum pump and water vapour compressor；Described
The gas approach of one heat exchanger connects with the first flue, and the exhanst gas outlet of the First Heat Exchanger and the first flue gas house steward connect
The logical next step into flue gas is handled, and the water inlet of the First Heat Exchanger connects with the delivery port of the intake pump, and described the
The delivery port of one heat exchanger with it is described go out water pump water inlet connect, the First Heat Exchanger is by heat exchange in flue gas into water
Water is tentatively heated；The gas approach of second heat exchanger connects with the second flue, second heat exchanger
Exhanst gas outlet connects with the second flue gas house steward to be handled into the next step of flue gas, the water inlet of second heat exchanger with it is described
Go out the delivery port connection of water pump, the delivery port of second heat exchanger connects with the water inlet of the negative pressure evaporation room, to described
Negative pressure evaporation room provides the hot water heated again and forms steam in the negative pressure evaporation room；The pumping of the negative pressure evaporation room
Mouth connects with the air inlet of the vavuum pump, and the steam of the steam (vapor) outlet of the negative pressure evaporation room and the water vapour compressor enters
Mouth connection, the steam (vapor) outlet of the water vapour compressor connect with for the jet chimney that steam uses.
The beneficial effects of the utility model are：Because the material containing some corrosion pipelines can be in certain flue gas in flue gas
At a temperature of pipeline is caused to corrode.First Heat Exchanger carries out tentatively heating so as to be hot into the water in the second heat exchanger to water
Water, it is poor so as to reduce the flue-gas temperature of the exhanst gas outlet of the second heat exchanger and gas approach.Herein, the flue-gas temperature of exhanst gas outlet
Less than the flue-gas temperature of gas approach.And then ensure that the flue-gas temperature of the exhanst gas outlet of the second heat exchanger maintains certain scope
It is interior so as to reducing corrosion of the flue gas to pipeline.Second heat exchanger continues defeated to negative pressure evaporation room using the hot water after heat exchange as thermal source
Send, the operation of vavuum pump ensures that negative pressure evaporation room is maintained in certain pressure, so that hot water can be formed in negative pressure evaporation room
For the steam of low-pressure low-temperature.Water vapour compression machine can be formed as low temperature and low pressure steam the steam for meeting requirement.So as to
The steam for meeting requirement is ultimately formed by fume afterheat and water heat exchange, reduces the production cost of steam；Improve boiler
It is the thermal efficiency, energy-saving, fill up and fume afterheat depth is reclaimed and becomes the technological gap of available steam.What is formed makes
It is used for the field such as heat temperature raising field, environmental protection, heating in enterprise's production technology with steam, rate of return on investment is high, and being capable of scale
Change and promote.Steam and the investment technological deficiency such as excessive can not be produced by breaching heat pump techniques and only producing hot water.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, a kind of residual heat from boiler fume recovery system, the flue-gas temperature of first flue are less than institute
State the flue-gas temperature of the second flue.
Using it is above-mentioned further scheme beneficial effect be using the gas cleaning different process stage fume afterheat so as to
Improve the utilization rate of fume afterheat.
Further, a kind of residual heat from boiler fume recovery system, first flue are conveying flue gas after desulfurization
Flue gas house steward draw shunt valve；Second flue be convey denitration after or electrostatic precipitation after flue gas flue gas it is total
Pipe.
Beneficial effect using above-mentioned further scheme is to be connected by bypassing with First Heat Exchanger, improves the peace of production
Quan Xing, so that partial fume enters First Heat Exchanger.Because First Heat Exchanger is used for the preliminary heating to water, so selection portion
Flue gas after desulfurization is divided to be exchanged heat, flue gas can be directly discharged into air after heat exchange.Flue gas after desulfurization can be carried out up to 70 DEG C to water
Preliminary heating；The temperature of flue gas can further be heated up to 150 DEG C to the hot water after preheating after denitration.After heat exchange
Flue-gas temperature is up to more than 110 DEG C, so as to ensure that flue gas internal corrosion material does not corrode to pipeline.
Further, a kind of residual heat from boiler fume recovery system, in addition to the first flue gas blower fan, the first flue gas wind
The air inlet of machine connects with the first flue, and the flue gas of the exhaust outlet and the First Heat Exchanger of the first flue gas blower fan enters
Mouth connection.
Beneficial effect using above-mentioned further scheme is to disclosure satisfy that usage amount of the First Heat Exchanger to flue gas.
Further, a kind of residual heat from boiler fume recovery system, in addition to first circulation pump, the first circulation pump
Water inlet connects with the delivery port of the First Heat Exchanger, the delivery port of the first circulation pump and entering for the First Heat Exchanger
The mouth of a river connects.
Beneficial effect using above-mentioned further scheme is that water is constantly squeezed into First Heat Exchanger using first circulation pump
Interior, water and flue gas fully exchange heat, so as to keep water is rear more than design temperature to enter the second heat exchanger.
Further, a kind of residual heat from boiler fume recovery system, in addition to the second flue gas blower fan, the second flue gas wind
The air inlet of machine connects with the second flue, and the gas outlet of the second flue gas blower fan and the flue gas of second heat exchanger enter
Mouth connection.
Beneficial effect using above-mentioned further scheme is that the second flue gas blower fan can be by flue gas caused by boiler according to setting
Meter flow introduces the second heat exchanger so as to meet usage amount of second heat exchanger to flue gas.
Further, a kind of residual heat from boiler fume recovery system, in addition to second circulation pump, the second circulation pump
Water inlet connects with the delivery port of the negative pressure evaporation room, the delivery port of the second circulation pump and entering for second heat exchanger
The mouth of a river connects.
Beneficial effect using above-mentioned further scheme is that second circulation pump can keep water to be circulated simultaneously according to setting flow
Maintain liquid level stabilizing in negative pressure evaporation room.
Further, a kind of residual heat from boiler fume recovery system, in addition to blowoff valve, the import of the blowoff valve and institute
The bottom blow-down outlet of negative pressure evaporation room is stated, the outlet of the blowoff valve connects with contaminants-collecting apparatus.
Beneficial effect using above-mentioned further scheme is can periodically to discharge the dirt formed in negative pressure evaporation room.
Further, a kind of residual heat from boiler fume recovery system, the First Heat Exchanger use direct contact heat transfer
Device；Second heat exchanger uses shell and tube or heat-pipe heat exchanger.
Beneficial effect using above-mentioned further scheme is that direct-contact heat exchanger can fully contact flue gas and water,
Vapor-liquid two phases heat exchange area is added so as to improve heat exchange efficiency and heat transfer rate, and then obtains the pollutant in flue gas
Purification, the aqueous solution is formed in dissolving water inlet.
Further, a kind of residual heat from boiler fume recovery system, the water vapour compressor is using high-speed centrifugal, sieve
One or more than one kinds of any combination of thatch formula or high speed direct-connected；The water vapour compressor is compressed using a water vapour
The formed water vapour compressor set of more than two series connection of machine or parameter matching.
Beneficial effect using above-mentioned further scheme is can to improve the pressure and temperature of vapor, so as to basis
Meet the requirement production vapor of user.
Brief description of the drawings
Fig. 1 is the utility model structure block diagram.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, First Heat Exchanger, 2, intake pump, 3, go out water pump, the 4, second heat exchanger, 5, negative pressure evaporation room, 6, vavuum pump, 7,
Water vapour compressor, the 01, first flue gas house steward, the 02, second flue gas house steward, the 11, first flue gas blower fan, 12, first circulation pump,
41st, the second flue gas blower fan, 42, second circulation pump, 51, blowoff valve.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit the scope of the utility model.
In description of the present utility model, it is to be understood that the orientation of the instruction such as term " on ", " under ", " interior ", " outer "
Or position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplification is retouched
State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not intended that to limitation of the present utility model.In description of the present utility model, " multiple " are meant that two or more,
Limited unless otherwise clearly tool.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be directly connected to, can also be indirectly connected with by intermediary, can be two element internals connection or two
The interaction relationship of element.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
Referring to Fig. 1, the utility model provides a kind of residual heat from boiler fume recovery system, including First Heat Exchanger 1, water inlet
Pump 2, go out water pump 3, the second heat exchanger 4, negative pressure evaporation room 5, vavuum pump 6 and water vapour compressor 7.
The gas approach of First Heat Exchanger 1 connects with the first flue.The exhanst gas outlet of First Heat Exchanger 1 and the first cigarette
The connection of gas house steward 01 is handled into the next step of flue gas.The water inlet of First Heat Exchanger 1 connects with the delivery port of intake pump 2.The
The delivery port of one heat exchanger 1 connects with going out the water inlet of water pump 3.First Heat Exchanger 1 by heat exchange in flue gas into water to water
Tentatively heated.
The gas approach of second heat exchanger 4 connects with the second flue.The exhanst gas outlet and the second cigarette of second heat exchanger 4
Gas house steward 02 connects to enter and the next step of flue gas is handled.The water inlet of second heat exchanger 4 connects with going out the delivery port of water pump 3.
The delivery port of second heat exchanger 4 is connected with the water inlet of negative pressure evaporation room 5, and the hot water heated again is provided to negative pressure evaporation room 5
And form steam in negative pressure evaporation room 5.
The bleeding point of negative pressure evaporation room 5 connects with the air inlet of vavuum pump 6.The steam (vapor) outlet of negative pressure evaporation room 5 steams with water
The steam inlet connection of vapour compressor 7.The steam (vapor) outlet of water vapour compressor 7 connects with for the jet chimney that steam uses.
By implementation of the present utility model, because the material containing some corrosion pipelines can be in certain flue gas temperature in flue gas
Pipeline is caused to corrode under degree.First Heat Exchanger to water carry out tentatively heat so that into the water in the second heat exchanger be hot water,
It is poor so as to reduce the flue-gas temperature of the exhanst gas outlet of the second heat exchanger and gas approach.Herein, the flue-gas temperature of exhanst gas outlet is low
In the flue-gas temperature of gas approach.And then ensure that the flue-gas temperature of the exhanst gas outlet of the second heat exchanger is maintained in certain scope
So as to reduce corrosion of the flue gas to pipeline.Second heat exchanger continues defeated to negative pressure evaporation room using the hot water after heat exchange as thermal source
Send, the operation of vavuum pump ensures that negative pressure evaporation room is maintained in certain pressure, so that hot water can be formed in negative pressure evaporation room
For the steam of low-pressure low-temperature.Water vapour compressor 7 can be formed as low temperature and low pressure steam the steam for meeting requirement.
In one embodiment, the flue-gas temperature of the first flue is less than the flue-gas temperature of the second flue.First cigarette
Feed channel and the second flue are the flue in flue gas purifying technique different phase respectively.
Further, the first flue is to convey the shunt valve that the flue gas house steward of flue gas after desulfurization draws.Second flue gas
Pipeline be convey denitration after or electrostatic precipitation after flue gas flue gas house steward.
By the implementation of the present embodiment, connected, carried with First Heat Exchanger 1 by the first flue for being used as shunt valve
The high security of production, is exchanged heat so that partial fume enters in First Heat Exchanger 1 with water.Due to First Heat Exchanger 1
For the preliminary heating to water, so selected part flue gas after desulfurization is exchanged heat, flue gas is back to conveying desulfurization again after heat exchange
The flue gas house steward of flue gas, and it is directly discharged into air with flue gas after desulfurization.Flue gas after desulfurization can be carried out just up to 70 DEG C to water
The heating of step.And then realize effective utilization to medium temperature flue gas (70 DEG C or so temperature flue gases) waste heat.
Due to being that directly can all be connected using flue gas after denitration, the second heat exchanger 4 with flue gas house steward.Second fume pipe
The temperature of flue gas up to more than 140 DEG C, can further be heated to the hot water after preheating after denitration in road.Flue gas after heat exchange
Temperature is up to more than 110 DEG C, so as to avoid dew point corrosion.The temperature of hot water in negative pressure evaporation room 5 is delivered to from the second heat exchanger 4
Spend for 85 DEG C or so, and water vapour compressor 7 is delivered to after the Low pressure steam of substantially 85 DEG C of formation in negative pressure evaporation room 5
Vapor (steam) temperature is warming up to more than 100 DEG C and goes to the use of the links such as production technology after compression..
In one embodiment, in addition to the first flue gas blower fan 11.The air inlet and the first fume pipe of first flue gas blower fan 11
Road connects.The exhaust outlet of first flue gas blower fan 11 connects with the gas approach of First Heat Exchanger 1.
By the implementation of the present embodiment, usage amount of the First Heat Exchanger to flue gas disclosure satisfy that.
In one embodiment, in addition to first circulation pump 12.The water inlet of first circulation pump 12 goes out with First Heat Exchanger 1
The mouth of a river connects.The delivery port of first circulation pump 12 connects with the water inlet of First Heat Exchanger 1.
By the implementation of the present embodiment, first circulation pump 12 constantly squeezes into water in First Heat Exchanger 1, and water and flue gas fill
Divide heat exchange, so as to keep water is rear more than design temperature to enter the second heat exchanger 4.First circulation pump 12 improves the profit of water
With rate.
In one embodiment, in addition to the second flue gas blower fan 41.The air inlet and the second fume pipe of second flue gas blower fan 41
Road connects.The gas outlet of second flue gas blower fan 41 connects with the gas approach of the second heat exchanger 4.
By the implementation of the present embodiment, the second flue gas blower fan 41 can introduce flue gas caused by boiler according to design discharge
Second heat exchanger 4 is so as to meeting usage amount of second heat exchanger 4 to flue gas.
In one embodiment, in addition to second circulation pump 42.The water inlet of second circulation pump 42 goes out with negative pressure evaporation room 5
The mouth of a river connects.The delivery port of second circulation pump 42 connects with the water inlet of the second heat exchanger 4.
By the implementation of the present embodiment, second circulation pump 42 can keep water to be circulated according to setting flow and maintain negative pressure to steam
Send out liquid level stabilizing in room 5.Second heat exchanger 4 will after heating delivery to negative pressure evaporation room 5.Due to entering negative pressure evaporation room 5
The speed of interior hot water evaporation is less than the speed for flowing into hot water, in order to maintain the stabilization of liquid level in negative pressure evaporation room 5, flows into negative pressure and steams
A part of hot water in hair room 5 is converted to steam and is delivered to water vapour compressor 7, and another part hot water passes through second circulation pump
42 are delivered in the second heat exchanger, circulate according to this so as to maintain the stabilization of liquid level in negative pressure evaporation room 5.
In one embodiment, in addition to blowoff valve 51.The import of blowoff valve 51 exports with the bottom blow-down of negative pressure evaporation room 5
Connection.The outlet of blowoff valve 51 connects with contaminants-collecting apparatus.
Specifically, negative pressure evaporation room 5 is a hollow closed container.In order to facilitate the discharge of dirt, negative pressure evaporation room 5 can be with
Using following structure.Negative pressure evaporation room 5 includes V-type bottom and cylindrical type top.The circumferential side wall on cylindrical type top and V-type bottom
Circumferential side wall be connected and use encapsulation process in junction.Negative pressure evaporation room 5 is using already present negative pressure in the prior art
Vaporization chamber, its internal concrete structure will not be repeated here.Waste is opened up in the bottom of V-type bottom, blowoff valve 51 passes through one
Determine the pipeline of diameter and the inlet communication of blowoff valve 51.Contaminants-collecting apparatus uses the structure of prior art, can specifically use
Casing is used for trapped dirt, then is sent at filth disposal.
In one embodiment, First Heat Exchanger 1 uses direct-contact heat exchanger.Second heat exchanger 4 using shell and tube or
Person's heat-pipe heat exchanger.
By implementation of the present utility model, direct-contact heat exchanger can fully contact flue gas and water, add gas-
Liquid two-phase heat exchange area is purified the pollutant in flue gas so as to improve heat exchange efficiency and heat transfer rate, is formed
The aqueous solution.
Because the flue gas for being used to heat water in First Heat Exchanger 1 uses flue gas after desulfurization, can directly to arrange to air
Flue gas, its heat content is low and also containing the pollutant for being dissolved in water, so can not only make water using direct-contact heat exchanger
It is sufficiently mixed with flue gas so that water obtains the heat of flue gas, heat exchange efficiency is high, can also reduce pollutant in flue gas, enters one
Step reduces the pollutant emission to air.Due to directly being contacted with flue gas in the reclaimed water of First Heat Exchanger 1, certain sulphur can be dissolved
Compound and nitrogen oxides, progressively step-down neutralizes aqueous ph value, it is necessary to periodically add alkali.
After the flue gas for being used to heat water in second heat exchanger 4 is using flue gas after the of a relatively high denitration of temperature or electrostatic precipitation
Flue gas.The shell and tube or heat-pipe heat exchanger used by the second heat exchanger 4, water circulate in heat exchanger tube, and flue gas is exchanging heat
Pipe is outer and water exchanges heat, and realizes wall-type heat exchange.Flue gas circulation after heat exchange is discharged into flue gas house steward, into the next step to flue gas
Purified treatment.In order to effectively prevent the corrosion of flue gas, the acidproof heat transfer material of outer surface anticorrosion with painting of heat exchanger tube in the second heat exchanger 4
Material or using resistant material, such as：Carborundum, stainless steel, titanium composite material etc..
In one embodiment, water vapour compressor 7 using high-speed centrifugal, roots-type or high speed direct-connected one kind or
More than one any combination.Water vapour compressor 7 is connected using more than two of a water vapour compressor 7 or parameter matching
The water vapour compressor set formed.
Specifically, water vapour compressor 7 can be using any in high-speed centrifugal, roots-type or a high speed direct-connected
A type of water vapour compressor.Or water vapour compressor 7 can use more than two series connection of parameter matching to be formed
Water vapour compressor set, wherein water vapour compressor set can select high-speed centrifugal, roots-type or high speed direct-connected in
One or more than one kinds of any combination.Water vapour compressor 7 can be selected according to requirement of the user to vapor.
Pass through the implementation of the present embodiment, it is possible to increase the pressure and temperature of vapor, meet user so as to produce and make
With desired vapor.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc., guarantor of the present utility model should be included in
Within the scope of shield.
Claims (10)
1. a kind of residual heat from boiler fume recovery system, it is characterised in that including First Heat Exchanger (1), intake pump (2), go out water pump
(3), the second heat exchanger (4), negative pressure evaporation room (5), vavuum pump (6) and water vapour compressor (7)；
The gas approach of the First Heat Exchanger (1) connects with the first flue, the exhanst gas outlet of the First Heat Exchanger (1)
Connected with the first flue gas house steward (01) into flue gas next step handle, the water inlet of the First Heat Exchanger (1) with it is described enter
Water pump (2) delivery port connection, the delivery port of the First Heat Exchanger (1) with it is described go out water pump (3) water inlet connect, it is described
First Heat Exchanger (1) is tentatively heated heat exchange in flue gas into water to water；
The gas approach of second heat exchanger (4) connects with the second flue, the exhanst gas outlet of second heat exchanger (4)
Connect with the second flue gas house steward (02) and handled into the next step of flue gas, the water inlet of second heat exchanger (4) with it is described
Go out the delivery port connection of water pump (3), the delivery port of second heat exchanger (4) and the water inlet of the negative pressure evaporation room (5) connect
It is logical, the hot water heated again is provided to the negative pressure evaporation room (5) and steam is formed in the negative pressure evaporation room (5)；
The bleeding point of the negative pressure evaporation room (5) connects with the air inlet of the vavuum pump (6), the negative pressure evaporation room (5)
Steam (vapor) outlet connects with the steam inlet of the water vapour compressor (7), the steam (vapor) outlet and use of the water vapour compressor (7)
In the jet chimney connection that steam uses.
2. a kind of residual heat from boiler fume recovery system according to claim 1, it is characterised in that first flue
Flue-gas temperature is less than the flue-gas temperature of second flue.
3. a kind of residual heat from boiler fume recovery system according to claim 2, it is characterised in that first flue is
Convey the shunt valve that the flue gas house steward of flue gas after desulfurization draws；Second flue be conveying denitration after or electrostatic precipitation after
The flue gas house steward of flue gas.
4. a kind of residual heat from boiler fume recovery system according to claim 1, it is characterised in that also including the first flue gas blower fan
(11), the air inlet of the first flue gas blower fan (11) connects with first flue, the first flue gas blower fan (11)
Exhaust outlet connected with the gas approach of the First Heat Exchanger (1).
5. a kind of residual heat from boiler fume recovery system according to claim 1, it is characterised in that also including first circulation pump
(12), the water inlet of the first circulation pump (12) connects with the delivery port of the First Heat Exchanger (1), the first circulation pump
(12) delivery port connects with the water inlet of the First Heat Exchanger (1).
6. a kind of residual heat from boiler fume recovery system according to claim 1, it is characterised in that also including the second flue gas blower fan
(41), the air inlet of the second flue gas blower fan (41) connects with second flue, the second flue gas blower fan (41)
Gas outlet connected with the gas approach of second heat exchanger (4).
7. a kind of residual heat from boiler fume recovery system according to claim 1, it is characterised in that also including second circulation pump
(42), the water inlet of the second circulation pump (42) connects with the delivery port of the negative pressure evaporation room (5), the second circulation pump
(42) delivery port connects with the water inlet of second heat exchanger (4).
A kind of 8. residual heat from boiler fume recovery system according to claim 1, it is characterised in that also including blowoff valve (51),
The import of the blowoff valve (51) and the bottom blow-down outlet of the negative pressure evaporation room (5), blowoff valve (51) go out
Mouth connects with contaminants-collecting apparatus.
9. according to a kind of any one of claim 1 to 8 residual heat from boiler fume recovery system, it is characterised in that described first
Heat exchanger (1) uses direct-contact heat exchanger；Second heat exchanger (4) uses shell and tube or heat-pipe heat exchanger.
A kind of 10. residual heat from boiler fume recovery system according to claim 9, it is characterised in that the water vapour compressor
(7) one or more than one kinds of any combination of high-speed centrifugal, roots-type or high speed direct-connected are used；
More than the two series connection institute groups that the water vapour compressor (7) is matched using a water vapour compressor (7) or parameter
Into water vapour compressor set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720860088.3U CN207146350U (en) | 2017-07-14 | 2017-07-14 | A kind of residual heat from boiler fume recovery system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720860088.3U CN207146350U (en) | 2017-07-14 | 2017-07-14 | A kind of residual heat from boiler fume recovery system |
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| Publication Number | Publication Date |
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| CN207146350U true CN207146350U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720860088.3U Expired - Fee Related CN207146350U (en) | 2017-07-14 | 2017-07-14 | A kind of residual heat from boiler fume recovery system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109126364A (en) * | 2018-10-31 | 2019-01-04 | 南京圣卡孚科技有限公司 | A kind of flue gas depth receives the treatment process of heat and purification |
| CN109827165A (en) * | 2019-02-13 | 2019-05-31 | 大唐绥化热电有限公司 | Flue gas power economized boiler and power-economizing method with circulatory function |
| CN111023610A (en) * | 2018-10-10 | 2020-04-17 | 南通华信中央空调有限公司 | Heat pump system and method for operating the same |
-
2017
- 2017-07-14 CN CN201720860088.3U patent/CN207146350U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111023610A (en) * | 2018-10-10 | 2020-04-17 | 南通华信中央空调有限公司 | Heat pump system and method for operating the same |
| CN111023610B (en) * | 2018-10-10 | 2021-11-05 | 南通华信中央空调有限公司 | Heat pump system and method for operating the same |
| CN109126364A (en) * | 2018-10-31 | 2019-01-04 | 南京圣卡孚科技有限公司 | A kind of flue gas depth receives the treatment process of heat and purification |
| CN109827165A (en) * | 2019-02-13 | 2019-05-31 | 大唐绥化热电有限公司 | Flue gas power economized boiler and power-economizing method with circulatory function |
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