CN106839049A - The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type - Google Patents
The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
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Abstract
The present invention provides the big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type, and its structure includes：Evaporator, injector, condenser and some connecting lines；It is divided into the bulk of left, center, right three in shape：Left is vertical multi-stage evaporator, and right is vertical multi-stage condensing device, between every grade of evaporator and condenser, is provided with steam jet ejector and is connected；From the high-temperature water for having certain pressure that heating network comes, by the low pressure water vapor in injector injection evaporator, the steam water interface for forming middle pressure enters condenser；Into the steam water interface of condenser, heating circulation water is heated, steam condensation and dissolving in formed in remaining water in warm water, middle warm water flows out from the delivery port of condenser, then flows into evaporator；By several vaporization chamber stepped evaporations from top to bottom, middle warm water cooling is changed into water at low temperature, and water at low temperature is discharged from base of evaporator discharge outlet, flows back to the water return pipeline of heat supply network.
Description
Technical field
The present invention relates to heat power engineering, more particularly to a kind of big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type.
Background technology
In recent years, continuing to develop with China's urban construction, the contradiction between regional development and heat demand is also highlighted increasingly.
All city cities area is all constantly expanding, and main city zone scale cell is continuously increased, and old town significantly increases area newly every year,
The area of Xincheng District also constantly expands.From the thermal source and heat supply network heat capacity of current city, city is much can not meet quick
The need for development.If heat supply does not catch up with, it will urban development is met with bottleneck.
To solve this concerning urban development and the contradiction of common people's vital interests, various regions generally start centralized heating project construction,
Newly-increased area of heat-supply service, increases construction investment newly.Specifically include newly-built pipe-networks engineering, the old net improvement project in part, newly-built booster pump station,
Ji Kong control centres, newly-built heat exchange station and heat exchange station improvement project etc..
Heat supply improvement project is divided into heat source side and heat supply network side.
Heat source side generally comprises unit heat supply transformation and heat supply initial station construction project, and specially power plant and power ＆ light company are newly-increased networks
Area of heat-supply service, Xincheng District boiler room heat supply network area of heat-supply service, district heating company heat supply network area of heat-supply service etc..
Heat supply network side is mainly to be changed to the pipeline of old town extended active duty, and heat supply pipeline can effectively control race to emit after changing
Water clock, greatly reduces because stopping hot number of times caused by tube leaks, greatly improves heating effect.
Central heating is realized in certain old town in nineteen eighty-three September, and pipe network has run 27 years so far.Through measurement, 1985
10mm when the old pipe network caliber installed by installing originally is thinned to 4-6mm, and severe local corrosion, and in heat supply phase warp
Often there is leakage event.Heating network section of tubing has extended service in the army, and often occurs tube leaks phenomenon during heat supply, causes
Heating quality declines.If do not transformed, once there are tube leaks, must stage stop heat, this can make to resident living
Into very big influence.Power ＆ light company's investment is transformed old town heating network, changes all thinning and corrosion pipeline, is changed
About 5 kilometers of scope pipe network total length is made, is related to 570,000 square meter area of heat-supply services, be roughly equal to the family of user 5000, injected capital into 17,000,000 yuan.
After the completion of engineered, the stability of the district heating quality and heat supply is greatly improved.By pipe network improving, main city zone thermal source fills
Foot, can bear the normal heat supply of resident, retail shop and enterprise.
Most of certain power plant's heat supply main pipeline network construction service life, what is had was even up to 30 years all more than 18 years.Manage this part
Net is long due to building time, along with the period of construction technical matters falls behind, to making insulation, overcoat serious damage, pipe network is aging,
Seriously corroded.In recent years, supervisor's net leakage accident frequently occurred, and each runtime occurs tens times.Robbed in every submain net
During repairing, repair personnel all suffers from more than 95 DEG C high pressures, the threats of high-temperature water, and repairing every time sluices and be all up to more than 30 hours,
Large area residential building is caused to stop heat, the serious situation of part underground pipe network bursting by freezing.The problem that central heating secondary network aspect is present
Also more protrude, especially early stage building and pipe abandon arcola room heat supply building grid-connected in recent years, the aging extent of corrosion of pipe network it
As many as weight, quantity have seriously threatened the normal life of city heat supply safety and influence resident.
666 kilometers of certain heat supply group heating network length, wherein once netting long 165 kilometers, secondary network is long 501 kilometers.1995
About 400 kilometers were built before year.Because most of pipeline network construction times are long, aging seriously corroded, cause pipe network system to be run and emit
Water clock is extremely serious, and radiation loss reaches 0.35 GJ/square metre year.The average temperature drop of every kilometer of heat distribution pipe network all more than 2 DEG C,
The average percentage of water loss of pipe network system is about 3%.Because fluid loss is big, heat is lost seriously, and almost all of once net, secondary network are all
The hydraulic misadjustment problem of various degrees, because pipe network is aging and without forensic science regulation, therefore heating enterprise is difficult in heat supply
To ensure the heating quality of user.
In decades, central heating cause is made that major contribution for the raising of development construction and living standards of the people in China city.
Nowadays the outstanding problem that the central heating network of large area is aging, seriously corroded has become influence central heating, seriously threatens
The heat supply safety in city and common people's normal life.
It has been the task of top priority for carrying out city heat supply work to implement central heating network transformation.Pipe can be substantially reduced by pipe network improving
The evaporating, emitting, dripping or leaking of liquid or gas of net, reduces energy resource consumption energy saving, improves energy utilization rate；By pipe network improving heating enterprise can be made a large amount of
Use of the new technology, new technology, improve the science regulating power of heating enterprise, improve overall heat supply level；Can by pipe network improving
General Promotion heating system safety and heat supply supportability, improve constantly the use thermal mass of numerous residents, benefit the common people.It is real
It is the act benefited the nation and the people to apply central heating network transformation, early to implement early being benefited.
Implement central heating network improvement project, emphasis is exactly to remove waste and old heat supply pipeline, lay the new pipeline of heat supply, this needs to throw
Enter huge fund.How to accomplish using existing pipeline, or less or thinner pipeline can be laid, only spend less investment,
The heating load of needs can equally be reachedThis is the frequent problem thought deeply of scientific worker that designs and construct.
The content of the invention
For the newly-built or old heating network of transformation, solve the problems, such as that the heating load of heating network generally existing is not enough, the present invention gives
Going out one kind can reduce heat supply network return water temperature, so as to increase the big temperature difference heat-exchange method and big temperature difference heat-exchanger rig of heating network heating load.
A kind of big temperature difference heat-exchange method of injecting type, it is comprised the concrete steps that：
(1) the part high-temperature water come from heating network, into first order injector, injector is using the high-temperature water for having certain pressure
It is driving force, the low pressure water vapor in injection evaporator first order vaporization chamber, the two is mixed to form the steam water interface of middle pressure,
Sprayed from injector, into the first order condensation chamber of condenser；
(2) same, from the part high-temperature water that heating network comes, into second level injector, injector is utilized certain pressure
High-temperature water is driving force, the low pressure water vapor in the vaporization chamber of the injection evaporator second level, and the two is mixed to form the carbonated drink of middle pressure
Mixture, sprays, into the second level condensation chamber of condenser from injector；
(3) enter the steam water interface of condenser, heating circulation water is heated；Heating circulation water after heat temperature raising, it is right
Heat user carries out heat supply；
(4) condenser it is at different levels in, after steam water interface is heated by partition to heating circulation water, steam condensation simultaneously and its
Yu Shui mixes, warm water in formation, and middle warm water flows out from condenser, flows into evaporator；
(5) after warm water enters evaporator in, by several vaporization chamber stepped evaporations from top to bottom, middle warm water cooling is changed into low temperature
Water, by the bottom discharge mouthful of evaporator, flows back to the water return pipeline of heat supply network；
(6) the external aspiration pump of the condensation chambers at different levels of condenser, is continuously discharged into the air inside condenser, to ensure condensation
The efficient normal work of device.
A kind of big temperature difference heat-exchanger rig for reducing heat supply network return water temperature, its structure includes：Evaporator, injector, condenser and
Some connecting lines；It is divided into the bulk of left, center, right three in shape：Left is vertical multi-stage evaporator, and right is vertical many
Level condenser, between every grade of evaporator and condenser, is provided with steam jet ejector and is connected；Its workflow is
The high-temperature water for having certain pressure come from heating network enters hot-water line, and hot-water line water outlet respectively enters several distributive pipes；
Part hot water enters first order injector as driving force by first distributive pipe, and the first order of injection evaporator is evaporated
Indoor low pressure water vapor, forms the steam water interface of middle pressure, is sprayed from the outlet of first order injector, into condenser
First order condensation chamber；
Part hot water enters second level injector, the second level evaporation of injection evaporator ground as driving force by second distributive pipe
Indoor low pressure water vapor, forms the steam water interface of middle pressure, is sprayed from the outlet of second level injector, into condenser
Second level condensation chamber；
Into the steam water interface of condenser, heating circulation water is heated；Steam condensation in steam water interface simultaneously dissolves in it
Yu Shuizhong forms middle warm water, and middle warm water flows out from the delivery port of condenser, then flows into evaporator；The external aspiration pumps of condensation chamber at different levels,
Leaked-in air in discharge condensation chamber；
In evaporator, middle warm water is by several vaporization chamber stepped evaporations from top to bottom, and middle warm water cooling is changed into water at low temperature, low
Warm water is discharged from base of evaporator discharge outlet, flows back to the water return pipeline of heat supply network.
The evaporator, it is an evaporator for vertical spray, and its structure includes：Water inlet, upper cover, the first order are steamed
Vapor outlet, first order sieve plate, first order vaporization chamber, cylinder, second level sieve plate, second level vaporization chamber, second level steam (vapor) outlet,
Low head and delivery port；
Middle warm water enters evaporator by the water inlet at the top of evaporator, is sprayed downwards by numerous ducts of first order sieve plate, enters
Enter first order vaporization chamber, part is evaporated at once, evaporate the steam for producing, flowed out by first order steam (vapor) outlet；
The remaining water of first order vaporization chamber evaporation, trickling is sprayed downwards by second level sieve plate, into second level vaporization chamber, portion at once
Divide evaporation, evaporate the steam for producing and flowed out by second level steam (vapor) outlet；
Remaining water by double flash evaporation turns into water at low temperature, from the delivery port of evaporator bottom, is discharged through water pump.
The injector, its structure includes：Receive room, nozzle, suction line, reducing pipe, trunnion, increaser；From heat supply network
The high-temperature water for coming passes through after nozzle speedup vacuum flashing, forms high speed carbonated drink and flows, into receiving room, meanwhile, evaporator is taken out steaming
From suction line into room is received, high speed carbonated drink stream is received by steam pumping vapour, and two fluids mixing is pressed, then through reducing pipe, trunnion
And increaser, after being pressurized and being formed steam-water mixing fluid, discharged by outlet.
The condenser, its profile is that upper and lower two-stage folds the plate type heat exchanger for falling, and its structure includes：Hot water outlet, first
Level steam inlet, first order condensation chamber, first order air water pipe, first order air water room, first order water inlet, second level condensation chamber,
Second level steam inlet, second level delivery port, second level air water pipe, second level air water room, hot water inlet；Steam-water mixing fluid
By the first order steam inlet of condenser, into after the first order condensation chamber of condenser, by the board-like partition of condenser to confession
Warm circulation heat transfer water, condenses after steam heat release, mixes with remaining water, by first order air water pipe, first order air water room, downwards
Flow to grade of two condensation chamber；Leaked-in air in first order condensation chamber, extracts out from the top of first order air water room；
Equally, the second level steam inlet that steam-water mixing fluid passes through condenser, into the second level condensation chamber of condenser, to confession
Warm circulation heat transfer water, condenses after steam heat release, mixes with remaining water, including the water that upper level is flowed down, together by second level gas
Water pipe, second level air water room flow outwardly；Leaked-in air in the condensation chamber of the second level, extracts out from the top of second level air water room.
Brief description of the drawings
Fig. 1 is the big temperature difference heat-exchange method schematic diagram of injecting type of the present invention；
Fig. 2 is the overall pattern of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention；
Fig. 3 is the evaporation structure figure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention；
Fig. 4 is the emitter construction figure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention；
Fig. 5 is the condenser structure figure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is described in further detail.
Fig. 1 gives injecting type of the present invention big temperature difference heat-exchange method schematic diagram.
Big temperature difference heat exchange schematic diagram in compares figure, illustrates comprising the following steps that for big temperature difference heat-exchange method：
1, by water inlet 401, from the part high-temperature water that heating network comes, into first order injection 200, injector is utilized to be had
The high-temperature water of certain pressure be driving force, the low pressure water vapor in the first order vaporization chamber of injection evaporator 100, the two is mixed to form
The steam water interface of middle pressure, sprays, into the first order condensation chamber of condenser 300 from injector；
2, likewise, the part high-temperature water come from heating network, into second level injector, injector is utilized certain pressure
High-temperature water is driving force, the low pressure water vapor in the second level vaporization chamber of injection evaporator 100, and the two is mixed to form middle pressure
Steam water interface, sprays, into the second level condensation chamber of condenser 300 from injector；
3, into the steam water interface of condenser, heating circulation water is heated.Heating circulation water after heat temperature raising, from going out
Condenser is flowed out at the mouth of a river 302, and heat supply is carried out to heat user；After heating circulation water completes heat supply, condensation is flowed back to from water inlet 310
Device；
4, in condenser, after steam water interface is heated by partition to heating circulation water, steam condensation is simultaneously mixed with remaining water
Close, warm water in formation, middle warm water flows out from leaving condenser water mouthful 312, then the water inlet flowed at the top of evaporator；
5, after middle warm water enters evaporator, by several vaporization chamber stepped evaporations from top to bottom, middle warm water cooling is changed into water at low temperature,
Water at low temperature flows back to the water return pipeline of heat supply network from the bottom discharge mouthful discharge of evaporator.
6, the condensation chambers at different levels of condenser are continuously discharged into the air inside condenser by the external aspiration pump of carbonated drink pipe 304,
To ensure the efficient normal work of condenser.
Fig. 2 gives the overall pattern of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention.
The general structure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention, its construction includes：Evaporator 100, injector
200th, condenser 300 and some connecting lines.It is divided into the bulk of left, center, right three in shape：Left is vertical multi-stage evaporator
100, right is vertical multi-stage condensing device 300, has horizontal steam to spray between every grade of evaporator 100 and condenser 300
Device 200.
Its workflow is
1, from the high-temperature water for having certain pressure that heating network comes, hot-water line 400 is entered by hot water inlet 401；
2, the water outlet of hot-water line 400 enters the several distributive pipes of level connection joint, wherein, by first distributive pipe 402, part heat
Water enters injector 200；
3, injector 200 using heating network come have the high-temperature water of certain pressure for driving force, the first order of injection evaporator 100
Low pressure water vapor in vaporization chamber 105, the two is mixed to form the steam water interface of middle pressure, from the outlet 206 of injector 200
Spray, into the first order condensation chamber 307 of condenser 300；
4, evaporator 100 is multi-stage evaporator, and part hot water passes through 400 connected horizontally second distributive pipes 403 of hot-water line,
By injector, the low pressure water vapor in the second level vaporization chamber 109 of injection evaporator 100, the two is mixed to form middle pressure
Steam water interface, into the second level condensation chamber 308 of condenser 300；
5, condenser 300 is multi-stage condensing device, into the steam water interface of condenser 300, heating circulation water is heated.
The backwater of heating circulation water enters multistage condenser from hot water inlet 310, and the heating circulation water after heat temperature raising is cold from multistage
The hot water outlet 302 of condenser is flowed out, and heat supply is carried out to heat user；
6, in condenser 300, after steam water interface is heated by partition to heating circulation water, steam condensation simultaneously dissolves in water
Warm water in middle formation, middle warm water flows out from the delivery port 311 of the bottom of condenser, and flowing into evaporator 100 by pipeline 312 pushes up
The water inlet 101 in portion；
7, after middle warm water enters evaporator 100, by several vaporization chamber stepped evaporations from top to bottom, middle warm water cooling is changed into low
Warm water, water at low temperature is discharged from the bottom discharge mouthful 110 of evaporator 100, the water return pipeline of cocurrent backheat net.
8, the external air water pipe 304 in bottom of the first condensation chamber 307 of condenser 300, it connects air water room 305.Air water
The top connection aspiration pump of room 305, the air inside the first condensation chamber 307 of discharge.The connection of bottom 306 row of air water room 305
Water pipe, the middle warm water in the first condensation chamber 307 of discharge, is sent to next stage condensation chamber.
9, the second condensation chamber 308 of condenser 300, i.e. last condensation chamber, the air water pipe connection air water room 309 of its bottom.
The top connection aspiration pump of air water room 309, the air inside the second condensation chamber 309 of discharge.The bottom 311 of air water room 309 connects
Run in water pipe 312, and the middle warm water of eductor condenser is sent into evaporator water inlet 101.
Fig. 3 gives the evaporation structure figure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention.
The evaporator 100 of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention, its profile is a vertical pressure vessel,
Its structure includes：Water inlet 101, upper cover 102, first order steam (vapor) outlet 103, the first order sieve plate 104, first order steam
Hair room 105, cylinder 106, second level sieve plate 108, second level vaporization chamber 109, second level steam (vapor) outlet 107, low head 111
With delivery port 110.
Middle warm water enters evaporator by the water inlet 101 at the top of evaporator, then by numerous ducts of first order sieve plate 104 to
Lower spray, is downwardly into the first order vaporization chamber 105 in evaporator.Pressure in first order vaporization chamber 105 is less than in spray
The corresponding saturation pressure of warm water, so, middle warm water enters part evaporation at once after first order vaporization chamber 105, is also known of flash distillation
Or dilatation.
The steam that the evaporation of first order vaporization chamber 105 is produced, is flowed out, into first order injector by first order steam (vapor) outlet 103.
First vaporization chamber 105 evaporates remaining water, by the spray trickling downwards of second level sieve plate 108, into second level vaporization chamber.
Pressure saturation pressure corresponding less than spray coolant-temperature gage in the vaporization chamber of the second level, so, shower water evaporates into the second level
Part is evaporated at once behind room, is evaporated the steam for producing and is flowed out by second level steam (vapor) outlet 107, enters back into second level injector.
Finally, turn into water at low temperature by the remaining water of double flash evaporation, flowed downward out from the delivery port 111 of bottom.It is high due to declining
Degree difference produces static pressure, and water at low temperature pressure rise becomes unsaturated water, then discharge through water pump.
Sieve plate is porous plate, and its effect is：
1, for the water-carrying capacity for giving, the calculating of the total circulation area of sieve aperture should ensure that the water layer thickness on sieve plate is not less than 5 centimetres,
So that the vapor phase space of vaporization chamber is not communicated with up and down；
2, from the water surface that sieve plate spray is flowed down, there should be enough areas, to ensure the heat exchange needs of water evaporation；
3, the diameter of the throughbore on sieve plate, usually 6~8 millimeters, it is impossible to small 6 millimeters, to prevent from blocking.
Fig. 4 gives the emitter construction figure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention.
The general structure of the injector 200 of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention includes：Nozzle, receive room and expansion
Depressor.Specially：Receive room 202, nozzle 203, suction line 207, reducing pipe 204, trunnion 205, increaser 206.
Diffuser is made up of reducing pipe 204, trunnion 205 and increaser 206.
Two external inlet/outlet pipes of injector are：The import 201 of high-temperature water, the outlet 208 of steam water interface.
The high-temperature water of high pressure, by after the speedup vacuum flashing of nozzle 203, forming high speed carbonated drink stream, enters by import 201
Receive room 202.Meanwhile, entered from suction line 207 by steam pumping and receive room 202.High speed carbonated drink stream is received by steam pumping, and two
The mixing of kind of fluid is pressed, then after reducing pipe 204 through diffuser, trunnion 205 and increaser 206, is pressurized and is formed carbonated drink
After fluid-mixing, discharged by outlet 208.
High speed carbonated drink stream receives and forms mixed flow by steam pumping, and it is that air-flow displacement is completed to be decelerated the process of supercharging discharge again
, therefore injector is substantially fluid entrainment pump.
Fig. 5 gives the condenser structure figure of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention.
The condenser 300 of the big temperature difference heat-exchanger rig embodiment of injecting type of the present invention, its profile is that upper and lower two-stage is folded fall board-like and changed
Hot device, its structure includes：Hot water outlet 302, first order steam inlet 301, first order condensation chamber 307, first order air water
Pipe 304, first order air water room 305, first order water inlet 303, second level condensation chamber, second level steam inlet, the second level go out
The mouth of a river, second level air water pipe, second level air water room, hot water inlet.
The steam-water mixing fluid that the outlet of first order injector sprays, by the first order steam inlet 301 of condenser, into cold
After the first order condensation chamber 307 of condenser, by the board-like partition of condenser to heating circulation heat transfer water, the steaming of steam-water mixing fluid
Condensed after vapour heat release, trickled downwards along heat exchange wall, mixed with remaining water, by first order air water pipe 304, first order gas
Hydroecium 305, flows downwardly into grade of two condensation chamber.Leaked-in air in first order condensation chamber 307, from first order air water room 305
Top extract out.
Equally, the steam-water mixing fluid that the outlet of second level injector sprays, by the second level steam inlet of condenser, enters
After the second level condensation chamber of condenser, by the board-like partition of condenser to heating circulation heat transfer water, the steam of steam-water mixing fluid
Condensed after heat release, trickled downwards along heat exchange wall, mixed with remaining water, including the water that upper level is flowed down, by second level gas
Water pipe, second level air water room, flow outwardly.Leaked-in air in the condensation chamber of the second level, extracts out from the top of second level air water room.
Claims (5)
1. the big temperature difference heat-exchange method of a kind of injecting type, it is comprised the concrete steps that：
(1) the part high-temperature water come from heating network, into first order injector, injector is using the high-temperature water for having certain pressure
It is driving force, the low pressure water vapor in injection evaporator first order vaporization chamber, the two is mixed to form the steam water interface of middle pressure,
Sprayed from injector, into the first order condensation chamber of condenser；
(2) same, from the part high-temperature water that heating network comes, into second level injector, injector is utilized certain pressure
High-temperature water is driving force, the low pressure water vapor in the vaporization chamber of the injection evaporator second level, and the two is mixed to form the carbonated drink of middle pressure
Mixture, sprays, into the second level condensation chamber of condenser from injector；
(3) enter the steam water interface of condenser, heating circulation water is heated；Heating circulation water after heat temperature raising, it is right
Heat user carries out heat supply；
(4) condenser it is at different levels in, after steam water interface is heated by partition to heating circulation water, steam condensation simultaneously and its
Yu Shui mixes, warm water in formation, and middle warm water flows out from condenser, flows into evaporator；
(5) after warm water enters evaporator in, by several vaporization chamber stepped evaporations from top to bottom, middle warm water cooling is changed into low temperature
Water, by the bottom discharge mouthful of evaporator, flows back to the water return pipeline of heat supply network；
(6) the external aspiration pump of the condensation chambers at different levels of condenser, is continuously discharged into the air inside condenser, to ensure condensation
The efficient normal work of device.
2. a kind of big temperature difference heat-exchanger rig of injecting type, its structure includes：Evaporator, injector, condenser and some connecting tubes
Road；It is divided into the bulk of left, center, right three in shape：Left is vertical multi-stage evaporator, and right is vertical multi-stage condensing device,
Between every grade of evaporator and condenser, it is provided with steam jet ejector and is connected；Its workflow is
The high-temperature water for having certain pressure come from heating network enters hot-water line, and hot-water line water outlet respectively enters several distributive pipes；
Part hot water enters first order injector as driving force by first distributive pipe, and the first order of injection evaporator is evaporated
Indoor low pressure water vapor, forms the steam water interface of middle pressure, is sprayed from the outlet of first order injector, into condenser
First order condensation chamber；
Part hot water enters second level injector, the second level evaporation of injection evaporator ground as driving force by second distributive pipe
Indoor low pressure water vapor, forms the steam water interface of middle pressure, is sprayed from the outlet of second level injector, into condenser
Second level condensation chamber；
Into the steam water interface of condenser, heating circulation water is heated；Steam condensation in steam water interface simultaneously dissolves in it
Yu Shuizhong forms middle warm water, and middle warm water flows out from the delivery port of condenser, then flows into evaporator；The external aspiration pumps of condensation chamber at different levels,
Leaked-in air in discharge condensation chamber；
In evaporator, middle warm water is by several vaporization chamber stepped evaporations from top to bottom, and middle warm water cooling is changed into water at low temperature, low
Warm water is discharged from base of evaporator discharge outlet, flows back to the water return pipeline of heat supply network.
3. according to the big temperature difference heat-exchanger rig of a kind of injecting type described in claim 2, it is characterised in that：The evaporator, it is
One evaporator of vertical spray, its structure includes：Water inlet, upper cover, first order steam (vapor) outlet, first order sieve plate,
First order vaporization chamber, cylinder, second level sieve plate, second level vaporization chamber, second level steam (vapor) outlet, low head and delivery port；
Middle warm water enters evaporator by the water inlet at the top of evaporator, is sprayed downwards by numerous ducts of first order sieve plate, enters
Enter first order vaporization chamber, part is evaporated at once, evaporate the steam for producing, flowed out by first order steam (vapor) outlet；
The remaining water of first order vaporization chamber evaporation, trickling is sprayed downwards by second level sieve plate, into second level vaporization chamber, portion at once
Divide evaporation, evaporate the steam for producing and flowed out by second level steam (vapor) outlet；
Remaining water by double flash evaporation turns into water at low temperature, from the delivery port of evaporator bottom, is discharged through water pump.
4. according to the big temperature difference heat-exchanger rig of a kind of injecting type described in claim 2, it is characterised in that：The injector, it
Structure include：Receive room, nozzle, suction line, reducing pipe, trunnion, increaser；The high-temperature water come from heat supply network passes through nozzle
After speedup vacuum flashing, high speed carbonated drink stream is formed, into receiving room, meanwhile, evaporator is entered from suction line by steam pumping and receives
Room, high speed carbonated drink stream is received by steam pumping, and two fluids mixing is pressed, then through reducing pipe, trunnion and increaser, is pressurized and shape
Into after steam-water mixing fluid, discharged by outlet.
5. according to the big temperature difference heat-exchanger rig of a kind of injecting type described in claim 2, it is characterised in that：The condenser, it
Profile is that upper and lower two-stage folds the plate type heat exchanger for falling, and its structure includes：Hot water outlet, first order steam inlet, the first order are cold
Solidifying room, first order air water pipe, first order air water room, first order water inlet, second level condensation chamber, second level steam inlet, the
Secondary effluent mouthful, second level air water pipe, second level air water room, hot water inlet；The first order that steam-water mixing fluid passes through condenser
Steam inlet, into after the first order condensation chamber of condenser, by the board-like partition of condenser to heating circulation heat transfer water, steam
Condensed after heat release, mixed with remaining water, by first order air water pipe, first order air water room, flow downwardly into the grade of two condensation chamber；
Leaked-in air in first order condensation chamber, extracts out from the top of first order air water room；
Equally, the second level steam inlet that steam-water mixing fluid passes through condenser, into the second level condensation chamber of condenser, to confession
Warm circulation heat transfer water, condenses after steam heat release, mixes with remaining water, including the water that upper level is flowed down, together by second level gas
Water pipe, second level air water room flow outwardly；Leaked-in air in the condensation chamber of the second level, extracts out from the top of second level air water room.
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| CN201510907019.9A CN106839049A (en) | 2015-12-05 | 2015-12-05 | The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type |
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| CN201510907019.9A CN106839049A (en) | 2015-12-05 | 2015-12-05 | The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type |
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| CN106839049A true CN106839049A (en) | 2017-06-13 |
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| CN109869788A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | Big temperature difference heat-exchanger rig |
| CN112325356A (en) * | 2020-11-03 | 2021-02-05 | 中国矿业大学 | Steam heating system and method for recovering waste heat of condensed water of heating pipe based on ejector |
| WO2022048095A1 (en) * | 2020-09-04 | 2022-03-10 | 李华玉 | Method of reducing and using heat transfer temperature difference in heat release process |
| CN115264553A (en) * | 2022-07-01 | 2022-11-01 | 天津卡利欧玛热能设备制造有限公司 | Radiation cooling and heating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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