CN109899269A - Waste-heat recovery device - Google Patents
Waste-heat recovery device Download PDFInfo
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- CN109899269A CN109899269A CN201711288721.7A CN201711288721A CN109899269A CN 109899269 A CN109899269 A CN 109899269A CN 201711288721 A CN201711288721 A CN 201711288721A CN 109899269 A CN109899269 A CN 109899269A
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- heat exchange
- water
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- waste
- gas
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- 239000002918 waste heat Substances 0.000 title claims abstract description 67
- 238000011084 recovery Methods 0.000 title claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 197
- 239000007789 gas Substances 0.000 claims abstract description 85
- 238000009423 ventilation Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 19
- 239000003921 oil Substances 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 239000003595 mist Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
A kind of waste-heat recovery device, it includes heat exchange case, water supply and drainage component and ventilation component, the heat exchange case has a heat exchange chamber, the water supply and drainage component includes the feed pipe and drainpipe being connected respectively with heat exchange chamber, the ventilation component includes the air inlet pipe being connected respectively with heat exchange chamber and exhaust pipe, the feed pipe is for injecting cold water into heat exchange chamber, the air inlet pipe is for being passed through high-temperature gas in the water into heat exchange chamber, the high-temperature gas forms bubble after entering in water, bubble rises under the buoyancy of water, gas in bubble, which carries out heat exchange with water, increases water temperature, obtain hot water, bubbles burst discharges gas after bubble rises to the water surface, the drainpipe is used to for hot water being expelled to the outside of heat exchange chamber, the exhaust pipe is for the gas more than water surface to be expelled to outside the heat exchange chamber.The high-temperature gas of waste-heat recovery device of the invention is directly contacted with water, does not need heat exchange elements, heat exchange efficiency is high, and manufacturing cost is low.
Description
Technical field
The present invention relates to a kind of waste-heat recovery devices.
Background technique
Air compressor machine delivery temperature is usually 100 DEG C~150 DEG C.Waste-heat recovery device recycling pressure waste heat is generallyd use to be used for
Hot water preparing.
Major part afterheat recovery unit of air compressor is mainly used in old-fashioned oil-containing air compressor machine at present, only recycles in lubricating oil
Heat (account for about residual heat of air compressor 30%~40%), air compressor machine discharge compressed air carry a large amount of waste heat (about duties
The 50%-60% of press waste heat) it is not recovered, cause biggish energy waste.
Recent years, with energy conservation and environmental protection requirement and the continuous improvement of manufacturing technique requirent, oil-free or micro- oily air compressor machine is more next
It is more universal.Oil-free or micro- oily residual heat of air compressor concentrates in the compressed air that air compressor machine is discharged (accounting for about residual heat of air compressor
90%), because solution-air heat exchanged thermoresistance is typically much deeper than liquid-liquid heat exchanged thermoresistance, the difficulty of compressed air waste-heat recycling is higher than profit
Lubricating oil heat recovery, most of oil-free or micro- oily residual heat of air compressor do not carry out waste heat recycling, mass energy are caused to waste.
Wall-type heat exchange mode is also taken to recycle oil-free or micro- oily air compressor machine compressed air waste-heat at present.That is compressed air
It is not directly contacted with water, compressed air transfers heat to metal tube, and metal tube transfers heat to water again.Heat transfer resistance is main
The contact surface of compressed air and metal tube is concentrated on, in order to improve heat transfer efficiency, needs a large amount of heat transfer areas, i.e., using a large amount of
Metal tube, consumption metal material is more, and cost is high.In addition, there is also following disadvantages for dividing wall type heat exchanger: heat exchange efficiency is not high,
The hot water temperature of acquisition is lower；It is easy the fouling in dividing wall type heat exchanger in the high occasion of water hardness, influences heat exchange efficiency, and
Frequent clean is needed to safeguard；Compressed air is larger by the pressure loss of dividing wall type waste-heat recovery device；Heat supply coolant-temperature gage is with season
Solar term temperature influences greatly, lower in the lower winter hot-water supply temperature of temperature, is not able to satisfy domestic hot-water's demand.
Summary of the invention
In view of this, it is necessary to provide a kind of new waste-heat recovery devices, to solve the above problems.
A kind of waste-heat recovery device comprising heat exchange case, water supply and drainage component and ventilation component, the heat exchange case have
One heat exchange chamber, the water supply and drainage component include the feed pipe and drainpipe being connected respectively with the heat exchange chamber, the ventilation
Component includes the air inlet pipe being connected respectively with the heat exchange chamber and exhaust pipe, and the feed pipe into heat exchange chamber for injecting
Cold water, the air inlet pipe is for being passed through high-temperature gas in the water into the heat exchange chamber, formation after which enters in water
Bubble, bubble are gradually increasing under the buoyancy of water, and the gas in bubble, which carries out heat exchange with water, increases water temperature, obtain heat
Water, bubbles burst releases gas after bubble rises to the water surface, and the drainpipe is used to the hot water being expelled to hot friendship
The outside of chamber is changed, the exhaust pipe is used to for the gas more than water surface being expelled to the outside of the heat exchange chamber.
Preferably, the water supply and drainage component further includes the liquid level sensor being mounted on the heat exchange chamber, is mounted on
Water-supply valve and controller on the feed pipe, the controller are electrically connected with liquid level sensor and water-supply valve, which passes
Sensor is used to monitor the water level in the heat exchange chamber, and liquid level sensor monitors that the water level in the heat exchange chamber reaches setting
Water supply lowest water level when, controller controls the water-supply valve and opens, and cold water is injected in the heat exchange chamber by feed pipe, liquid
When level sensor monitors that the water level in the heat exchange chamber reaches the peak level of setting, controller controls the water-supply valve and closes
It closes, stops filling the water into the heat exchange chamber.
Preferably, the water supply and drainage component further includes the temperature sensor being mounted in the heat exchange chamber, is mounted on
Drain valve and controller on the drainpipe, the controller are electrically connected with temperature sensor and drain valve, which passes
Sensor is used to monitor the temperature of water in the heat exchange chamber, when the temperature of water in heat exchange chamber reaches preset highest water temperature,
Controller controls the drain valve and opens, and heat exchange chamber is discharged by drainpipe in the water in heat exchange chamber, when in heat exchange chamber
When water level reaches the lowest water level of setting, controller controls the drain valve and closes.
Preferably, the water supply and drainage component further includes the oil filter being mounted on the drainpipe, which is used for
Filter out the oils in the water by drainpipe.
Preferably, the waste-heat recovery device further includes the multihole distributor being mounted in the heat exchange chamber, described logical
Pneumatic module further includes the gas distributor being mounted in the heat exchange chamber, and the air inlet pipe is connected to the bottom of the gas distributor
Portion and it is connected with the gas distributor, the multihole distributor is mounted on the top of the gas distributor, and high-temperature gas passes through
Air inlet pipe enters gas distributor, then under the action of multihole distributor, generates multiple bubbles.
Preferably, the waste-heat recovery device further includes the demister being mounted at the top of the heat exchange chamber, the demister
Positioned at the top of the peak level of the heat exchange chamber, which is used to filter out the water mist in the gas to emerge, described
The opening of exhaust pipe is located at the top of the demister.
Preferably, the waste-heat recovery device further includes the gas lift pipe being mounted in heat exchange chamber, which has one
First port and the second port opposite with the first port, the first port face the multihole distributor, the second port
Positioned at the lower section of peak level, which is used to make the water in heat exchange chamber to form circulation to accelerate to heat up.
Preferably, the waste-heat recovery device further includes one being mounted on heat exchange case bottom and being connected with the heat exchange chamber
Logical sewage pipe, the sewage pipe is for being discharged the mud for being deposited on the heat exchange chamber bottom.
Preferably, the waste-heat recovery device further includes the first service valve being mounted in the air inlet pipe, is mounted on institute
State the second service valve, bypass pipe and the by-passing valve being mounted on the bypass pipe on exhaust pipe, the bypass pipe one end and it is described into
Tracheae is connected, and the other end is connected with the exhaust pipe, and the joint of the bypass pipe and air inlet pipe is the first interface point, by this
The joint of siphunculus and exhaust pipe be the second interface point, first service valve be located at air inlet pipe be located at the heat exchange case and
Section between first interface point, second service valve be located at exhaust pipe be located at the heat exchange case and the second interface point
Between section, when needing to be passed through gas into the heat exchange chamber, first service valve and the second service valve are opened, institute
By-passing valve closing is stated, when not needing to be passed through gas into the heat exchange chamber, first service valve and the second service valve are closed
It closes, the by-passing valve is opened.
Preferably, the waste-heat recovery device further includes a high temperature alarm, the high temperature alarm and the temperature sensing
Device and controller electrical connection set the water temperature in the heat exchange chamber not above a maximum temperature, when temperature sensor detects
When water temperature in heat exchange chamber is higher than the maximum temperature, high temperature alarm alarm, controller controls drain valve for heat exchange chamber
Interior water discharge.
Waste-heat recovery device of the invention inputs high-temperature gas into heat exchange chamber by air inlet pipe, and high-temperature gas is through excessive
Enter in water and generate a large amount of minute bubbles after pore size distribution plate, is exchanged by the heat between minute bubbles and water and increase water temperature.It should
The high-temperature gas of waste-heat recovery device is directly contacted with water, does not need the use of metal heat exchange elements, and heat exchange efficiency is high, and makes
It makes at low cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the waste-heat recovery device of better embodiment of the present invention.
Main element symbol description
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Below in conjunction with the attached drawing in embodiment of the present invention, the technical solution in embodiment of the present invention is carried out clear
Chu is fully described by, it is clear that described embodiment is only some embodiments of the invention, rather than whole realities
Apply mode.
Based on the embodiment in the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
All technical and scientific terms used herein with to belong to those skilled in the art of the invention usual
The meaning of understanding is identical.Term as used herein in the specification of the present invention is intended merely to description specific embodiment
Purpose, it is not intended that in limitation the present invention.
Referring to Fig. 1, better embodiment of the present invention provides a kind of waste-heat recovery device 100, it is empty to be mainly used for recycling
The waste heat of the high-temperature gas of press (not shown) discharge, cold water is discharged after heat exchange is changed into hot water.Waste heat recycling
Device 100 includes heat exchange case 10, water supply and drainage component 20 and ventilation component 30.The water supply and drainage component 20 is used for heat exchange
Cold water is provided in case 10, and the hot water in heat exchange case 10 is discharged.The ventilation component 30 into heat exchange case 10 for being passed through
High-temperature gas, and the cryogenic gas in heat exchange case 10 is discharged.
The heat exchange case 10 has a heat exchange chamber 101.
The water supply and drainage component 20 includes the feed pipe 21 and drainpipe being connected respectively with the heat exchange chamber 101
22.For injecting cold water into heat exchange chamber 101, which is used for the hot water in heat exchange chamber 101 feed pipe 21
Discharge.In this example, which is arranged in the top of the heat exchange chamber 101, which is arranged in the heat
The lower part of inverting chamber 101 in order to inject cold water into the heat exchange chamber 101, and the hot water in heat exchange chamber 101 is arranged
Out.
The ventilation component 30 includes the air inlet pipe 31 being connected respectively with the heat exchange chamber 101 and exhaust pipe 32.It should
The lower part of the heat exchange chamber 101 is arranged in air inlet pipe 31, which is arranged in the top of the heat exchange chamber 101.It should
Air inlet pipe 31 for being passed through high-temperature gas into heat exchange chamber 101, the high-temperature gas enter after heat exchange chamber 101 with heat exchange chamber
Water contact in 101, forms bubble, and the top of heat exchange chamber 101 is risen under the buoyancy of water.Rise in bubble
In the process, heat exchange is carried out between gas and water, increases water temperature.The exhaust pipe 32 is used to for the gas more than water surface being discharged,
In other words, which is used to for the gas at 101 top of heat exchange chamber being discharged.
The water supply and drainage component 20 further includes the liquid level sensor 23 being mounted on the heat exchange chamber 101 and installation
Water-supply valve 24 on the feed pipe 21.The liquid level sensor 23 is used to monitor the water level in the heat exchange chamber 101.Work as liquid
When level sensor 23 monitors that the water level in the heat exchange chamber 101 reaches the water supply lowest water level of setting, the water-supply valve 24
It opens, cold water is injected in the heat exchange chamber 101 by feed pipe 21.When liquid level sensor 23 monitors the heat exchange chamber
When water level in 101 reaches the peak level of setting, the water-supply valve 24 is closed, and stops filling the water into the heat exchange chamber 101.
The peak level is lower than the roof of the heat exchange chamber 101.
The water supply and drainage component 20 further includes controller 25.The water-supply valve 24 is electric feed water valve.The controller 25
It is electrically connected with liquid level sensor 23 and water-supply valve 24.The water in the heat exchange chamber 101 is monitored in liquid level sensor 23
When position reaches the water supply lowest water level of setting, controller 25 controls water-supply valve 24 and opens；It is monitored in liquid level sensor 23 described
When water level in heat exchange chamber 101 reaches the peak level of setting, controller 25 controls water-supply valve 24 and closes.
The water supply and drainage component 20 further includes the temperature sensor 26 being mounted in the heat exchange chamber 101 and installation
Drain valve 27 on the drainpipe 22.The temperature sensor 26 is used to monitor the temperature of water in the heat exchange chamber 101.When
When the temperature of water reaches preset highest water temperature in heat exchange chamber 101, the drain valve 27 is opened, the water in heat exchange chamber 101
Heat exchange chamber 101 is discharged by drainpipe 22 under the action of water surface overhead gas pressure and self gravity.When heat exchange chamber 101
Interior water level decreasing to setting draining lowest water level when, drain valve 27 close.The draining lowest water level and the water supply are minimum
Water level is identical.
The drain valve 27 is electric draining valve.The controller 25 is electrically connected respectively with temperature sensor 26 and drain valve 27
It connects.When temperature sensor 26 monitors that the water temperature in heat exchange chamber 101 reaches preset highest water temperature, the control row of controller 25
Water valve 27 is opened；When no water is discharged by drain valve 27, the water level in heat exchange chamber 101 reaches the minimum water of draining of setting
Position, liquid level sensor 23 detect that the draining lowest water level, controller 25 control drain valve 27 and close.
The water supply and drainage component 20 further includes the oil filter 28 being mounted on the drainpipe 22.The oil filter 28 is used for
Filter out the oils in the water by drainpipe 22.In an at least embodiment, which is absorption type oil filter.
The waste-heat recovery device 100 further includes the multihole distributor 40 being mounted in heat exchange chamber 101.The ventilation group
Part 30 further includes the gas distributor 33 being mounted in the heat exchange chamber 101.The gas distributor 33 is a hydrostatic column.
The bottom end closure of the gas distributor 33, the multihole distributor 40 are mounted on the top of the gas distributor 33.The air inlet
Pipe 31 stretches to the inside of heat exchange chamber 101, is connected to the bottom of the gas distributor 33, and be connected with the gas distributor 33
It is logical.After high-temperature gas enters gas distributor 33 by air inlet pipe 31, under the action of multihole distributor 40, generate big
The minute bubbles of amount, minute bubbles rise under the action of the buoyancy of water, and minute bubbles carry out heat with water in uphill process and exchange, and make
The gas temperature obtained in minute bubbles reduces, and the temperature of water increases.Gas is ruptured and discharged after the water surface of minute bubbles rising, and gas arrives
Up to the space on the water surface, the outside of heat exchange case 10 is then expelled to by exhaust pipe 32.
In an at least embodiment, the multihole distributor 40 is threadedly connected to the top of the gas distributor 33, with
Easy to disassemble, replacement and cleaning.
The waste-heat recovery device 100 further includes the demister 50 for being mounted on 101 top of heat exchange chamber.The demister 50
In space more than the peak level of the heat exchange chamber 101, the demister 50 is for filtering out in the gas to emerge
Water mist.The opening of the exhaust pipe 32 is located at the top of the demister 50.The gas to emerge is filtered out by the demister 50
Enter exhaust pipe 32 after water mist.
The waste-heat recovery device 100 further includes the gas lift pipe 60 being mounted in heat exchange chamber 101.The gas lift pipe 60 is used for
Guide water (flow) direction.The gas lift pipe 60 has a first port 61 and the second port 62 opposite with the first port 61.This
Multihole distributor 40 described in 61 face of Single port, demister 50 described in 62 face of second port.40 shape of multihole distributor
At minute bubbles the gas lift pipe 60 is entered by the first port 61 of the gas lift pipe 60, minute bubbles continue to rise, and pass through second end
Mouth 62 continues to float up to the water surface.The water being located in gas lift pipe 60 in heat exchange chamber 101 flows up under the action of minute bubbles,
Water outside gas lift pipe 60 flows downward, and is thusly-formed circulation, can accelerate the rate of climb of water temperature.
The waste-heat recovery device 100 further includes one being mounted on 10 bottom of heat exchange case and being connected with the heat exchange chamber
Sewage pipe 70.A blowdown valve 71 is provided on the sewage pipe 70.When the bottom deposit of heat exchange case 10 has more mud,
Blowdown valve 71 is opened, the water and mud of 101 bottom of heat exchange chamber will be expelled to the outside of heat exchange chamber 101 along sewage pipe 70.
The heat exchange case 10 includes tank body 11 and the upper capping 12 and lower capping that are separately mounted to 11 upper and lower ends of tank body
13.The tank body 11, upper capping 12 and lower capping 13 cooperatively form the heat exchange chamber 101.The sewage pipe 70 is mounted under this
In capping 13.The exhaust pipe is mounted on this in capping 12.The demister 50 is mounted on this in capping 12.The blowdown
Pipe 70 is mounted in the lower capping 13.
The heat exchange case 10 further includes first flange 14 and second flange 15.The first flange 14 is used for the upper envelope
Lid 12 is mounted on tank body 11.The second flange 15 is used to the lower capping 13 being mounted on tank body 11.
The waste-heat recovery device 100 further includes auxiliary repair component 80.The auxiliary repair component 80 includes being mounted on institute
State the first service valve 81 in air inlet pipe 31, the second service valve 82 being mounted on the exhaust pipe 32, bypass pipe 83 and installation
By-passing valve 84 on the bypass pipe 83.83 one end of bypass pipe is connected with the air inlet pipe 31, the other end and the exhaust
Pipe 32 is connected.The joint of the bypass pipe 83 and air inlet pipe 31 is the first interface point 310, the bypass pipe 83 and exhaust pipe 32
Joint is the second interface point 320.First service valve 81 be located at air inlet pipe 31 be located at the heat exchange case 10 with this
Section between one interface point 310, second service valve 82 be located at exhaust pipe 32 be located at the heat exchange case 10 and second
Section between interface point 320.When waste-heat recovery device 100 works, first service valve 81 and the second service valve 82 are in
Open state, the by-passing valve 84 are in close state.It breaks down in waste-heat recovery device 100 or heat exchange case 10 needs to clean
When, first service valve 81 and the second service valve 82 are closed, the by-passing valve 84, the High Temperature Gas in air inlet pipe 31 are opened
Body directly will enter exhaust pipe 32 by bypass pipe 83, and be discharged by exhaust pipe 32, in heat exchange case 10 will there is no gas into
Enter, the upper capping 12 and lower capping 13 of the heat exchange case 10 can be removed, maintenance is carried out to waste-heat recovery device 100 or to heat
Commuting case 10 is cleaned.
The waste-heat recovery device 100 further includes a high temperature alarm 90, the high temperature alarm 90 and the temperature sensing
Device 26 and controller 25 are electrically connected.The water temperature in the heat exchange chamber 101 is set not above a maximum temperature, is recycled in waste heat
When device 100 breaks down, the water temperature in heat exchange chamber 101 can just be higher than the maximum temperature.When temperature sensor 26 is examined
When the water temperature in heat exchange chamber 101 is measured higher than the maximum temperature, high temperature alarm 90 will issue alarm, at this point, control
Device 25 processed controls water-supply valve 24 and closes, and control drain valve 27 is opened, and the hot water in heat exchange chamber 101 is discharged, is then turned off
Drain valve 27 can overhaul waste-heat recovery device 100.
The waste heat is introduced so that the water-supply valve 24 is electric feed water valve, drain valve 27 is electric draining valve as an example below to return
How receiving apparatus 100 works.
When waste-heat recovery device 100 does not provide hot water, waste-heat recovery device 100 is in off-mode, water supply
Valve 24 and drain valve are closed, and the first service valve 81 and the second service valve 82 are closed, and by-passing valve 84 is opened, and high-temperature gas is by air inlet pipe
31 enter exhaust pipe 32 by bypass pipe 83.
When needing to provide hot water using the waste-heat recovery device 100, starts the waste-heat recovery device 100, open
The first service valve 81 and the second service valve 82 are opened, by-passing valve 84 is closed, high-temperature gas passes through air inlet pipe 31 and enters the gas point
Cloth device 33, the gas at 101 top of heat exchange chamber pass through exhaust pipe 32 and are expelled to outside heat exchange chamber 101.Liquid level sensor 23 is supervised
Water supply lowest water level of the water level in the heat exchange chamber 101 lower than setting is measured, controller 25 controls water-supply valve 24 and opens, cold
Water is entered in heat exchange chamber 101 by feed pipe 21, when liquid level sensor 23 monitors that the water level in the heat exchange chamber 101 reaches
To setting peak level when, controller 25 control water-supply valve 24 close.High-temperature gas enters the gas point by air inlet pipe 31
Cloth device 33 generates a large amount of minute bubbles after multihole distributor 40, and minute bubbles are under the action of the buoyancy of water along gas lift pipe
60 rise, and minute bubbles carry out heat with water in uphill process and exchange, so that the gas temperature in minute bubbles reduces, the temperature of water
It gradually rises.It is ruptured when minute bubbles rise to the water surface, gas enters the top of heat exchange chamber 101, by demister 50, so
Enter exhaust pipe 32 afterwards, the outside of heat exchange chamber 101 is expelled to by exhaust pipe 32.During minute bubbles rise, it is located at
Water in gas lift pipe 60 moves upwards under the drive of minute bubbles, and the water outside gas lift pipe 60 flows downward, and is thusly-formed ring
Stream.When temperature sensor 26 monitors that the water temperature in heat exchange chamber 101 reaches preset water temperature, controller 25 controls drain valve
27 open, and hot water is discharged by drainpipe 22.Oil filter 28 on drainpipe 22 filters out the oils in hot water.Work as level sensing
When device 23 monitors that the water level in the heat exchange chamber 101 reaches the draining lowest water level of setting, controller 25 first controls draining
Valve 27 is closed, then controls the opening of water-supply valve 24, is re-injected cold water, is repeated above-mentioned waste heat removal process.
It should be understood that waste heat recycling can be carried out simultaneously with multiple waste-heat recovery devices 100, at this point, multiple waste heat returns
Receiving apparatus 100 connects a water pump 200 jointly.The water outlet side of the water pump 200 is connected with a surge tank 300.The surge tank
300 are provided with water.The feed pipe 21 of the multiple waste-heat recovery device 100 is connected to the surge tank 300 respectively.The surge tank
300 water outlets are provided with a pressure sensor 301, the control of the unlatching of water pump 200 by the pressure sensor 301.When wherein one
When the water-supply valve 24 of a waste-heat recovery device 100 is opened, the water in surge tank 300 flows into feed pipe 21, pressure sensing
Device 301 detects that hydraulic pressure is gradually reduced, and when hydraulic pressure reaches the minimum hydraulic pressure of setting, water pump 200 is turned on, Xiang Huan
Rush water filling in tank 300.When pressure sensor 301 detects that hydraulic pressure reaches the highest hydraulic pressure of setting, water pump 200 is quilt
It closes, stops filling the water into surge tank 300.
Waste-heat recovery device 100 of the invention inputs high-temperature gas, High Temperature Gas into heat exchange chamber 101 by air inlet pipe 31
Body enters in water after multihole distributor 40 and generates a large amount of minute bubbles, is exchanged and is risen by the heat between minute bubbles and water
High water temperature.The high-temperature gas of the waste-heat recovery device 100 is directly contacted with water, is not needed the use of metal heat exchange elements, is changed
The thermal efficiency is high, and manufacturing cost is low.
In addition, it is described above, it is only better embodiment of the invention, not to limit in any form of the invention
System, although the present invention is disclosed above by better embodiment, is not intended to limit the invention, any skill for being familiar with this profession
Art personnel, without departing from the scope of the present invention, be modified when the technology contents using the disclosure above or
The equivalent implementations of equivalent variations are modified to, but without departing from the technical solutions of the present invention, technology according to the present invention
Any simple modification, equivalent change and modification that essence does embodiment of above, still fall within technical solution of the present invention
In range.
Claims (10)
1. a kind of waste-heat recovery device comprising heat exchange case, water supply and drainage component and ventilation component, the heat exchange case have one
Heat exchange chamber, the water supply and drainage component include the feed pipe and drainpipe being connected respectively with the heat exchange chamber, it is characterised in that:
The ventilation component includes the air inlet pipe being connected respectively with the heat exchange chamber and exhaust pipe, which is used for heat exchange
Intracavitary injection cold water, for the air inlet pipe for being passed through high-temperature gas in the water into the heat exchange chamber, which enters water
In after form bubble, bubble is gradually increasing under the buoyancy of water, and the gas in bubble and water carry out heat exchange and makes water temperature liter
Height obtains hot water, and bubbles burst discharges gas after bubble rises to the water surface, and the drainpipe is for the hot water to be expelled to
The outside of heat exchange chamber, the exhaust pipe are used to for the gas more than water surface being expelled to the outside of the heat exchange chamber.
2. waste-heat recovery device as described in claim 1, it is characterised in that: the water supply and drainage component further includes being mounted on institute
The water-supply valve and controller stating the liquid level sensor on heat exchange chamber, being mounted on the feed pipe, the controller and liquid level pass
Sensor and water-supply valve are electrically connected, which is used to monitor the water level in the heat exchange chamber, liquid level sensor prison
When measuring the water level in the heat exchange chamber and reaching the water supply lowest water level of setting, controller controls the water-supply valve and opens, cold
Water is injected in the heat exchange chamber by feed pipe, and liquid level sensor monitors that the water level in the heat exchange chamber reaches setting
When peak level, controller controls the water-supply valve and closes, and stops filling the water into the heat exchange chamber.
3. waste-heat recovery device as described in claim 1, it is characterised in that: the water supply and drainage component further includes being mounted on institute
The drain valve and controller stating the temperature sensor in heat exchange chamber, being mounted on the drainpipe, the controller and temperature pass
Sensor and drain valve are electrically connected, which is used to monitor the temperature of water in the heat exchange chamber, work as heat exchange chamber
When the temperature of interior water reaches preset highest water temperature, controller controls the drain valve and opens, and the water in heat exchange chamber passes through row
Heat exchange chamber is discharged in water pipe, and when the water level in heat exchange chamber reaches the lowest water level of setting, controller controls the drain valve
It closes.
4. waste-heat recovery device as described in claim 1, it is characterised in that: the water supply and drainage component further includes being mounted on institute
The oil filter on drainpipe is stated, which is used to filter out the oils in the water by drainpipe.
5. waste-heat recovery device as claimed in claim 2, it is characterised in that: the waste-heat recovery device further includes being mounted on institute
The multihole distributor in heat exchange chamber is stated, the ventilation component further includes the gas distributor being mounted in the heat exchange chamber,
The air inlet pipe is connected to the bottom of the gas distributor and is connected with the gas distributor, and the multihole distributor is mounted on
The top of the gas distributor, high-temperature gas enters gas distributor by air inlet pipe, then under the action of multihole distributor,
Generate multiple bubbles.
6. waste-heat recovery device as claimed in claim 2, it is characterised in that: the waste-heat recovery device further includes being mounted on institute
The demister at the top of heat exchange chamber is stated, which is located at the top of the peak level of the heat exchange chamber, which is used for
The water mist in the gas to emerge is filtered out, the opening of the exhaust pipe is located at the top of the demister.
7. waste-heat recovery device as claimed in claim 5, it is characterised in that: the waste-heat recovery device further includes being mounted on heat
Gas lift pipe in inverting chamber, the gas lift pipe have a first port and the second port opposite with the first port, the first end
Mouth faces the multihole distributor, which is located at the lower section of peak level, and the gas lift pipe is for making in heat exchange chamber
Water forms circulation to accelerate to heat up.
8. waste-heat recovery device as described in claim 1, it is characterised in that: the waste-heat recovery device further includes one being mounted on
Heat exchange case bottom and the sewage pipe being connected with the heat exchange chamber, the sewage pipe are deposited on the heat exchange chamber for being discharged
The mud of bottom.
9. waste-heat recovery device as described in claim 1, it is characterised in that: the waste-heat recovery device further includes being mounted on institute
It states the first service valve in air inlet pipe, the second service valve being mounted on the exhaust pipe, bypass pipe and is mounted on the bypass pipe
On by-passing valve, which is connected with the air inlet pipe, and the other end is connected with the exhaust pipe, the bypass pipe with
The joint of air inlet pipe is the first interface point, and the joint of the bypass pipe and exhaust pipe is the second interface point, first maintenance
Valve is located at the section between the heat exchange case and first interface point of air inlet pipe, and second service valve is located at exhaust
The section between the heat exchange case and the second interface point of pipe, when needing to be passed through gas into the heat exchange chamber,
First service valve and the second service valve are opened, and the by-passing valve is closed, and are not needing to be passed through gas into the heat exchange chamber
When body, first service valve and the second service valve are closed, and the by-passing valve is opened.
10. waste-heat recovery device as claimed in claim 3, it is characterised in that: the waste-heat recovery device further includes a high temperature
Alarm, the high temperature alarm are electrically connected with the temperature sensor and controller, set water temperature in the heat exchange chamber not
A maximum temperature can be higher than, when temperature sensor detects that the water temperature in heat exchange chamber is higher than the maximum temperature, high temperature alarm
Device alarm, controller control drain valve and the water in heat exchange chamber are discharged.
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| CN201711288721.7A CN109899269A (en) | 2017-12-07 | 2017-12-07 | Waste-heat recovery device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711288721.7A CN109899269A (en) | 2017-12-07 | 2017-12-07 | Waste-heat recovery device |
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| CN109899269A true CN109899269A (en) | 2019-06-18 |
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| CN111692897A (en) * | 2020-07-17 | 2020-09-22 | 成都歆雅春风科技有限公司 | Bubble disturbance indirect heating equipment |
| CN113623622A (en) * | 2021-07-26 | 2021-11-09 | 西安交通大学 | Water heater or steam generator using compressed air as energy source |
| CN114322601A (en) * | 2021-12-25 | 2022-04-12 | 无锡光华锅炉制造有限公司 | Flue gas waste heat recovery type energy-saving boiler |
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Application publication date: 20190618 |