CN205690489U - Direct-connected big temperature difference heat-exchanger rig - Google Patents
Direct-connected big temperature difference heat-exchanger rig Download PDFInfo
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- CN205690489U CN205690489U CN201620525926.7U CN201620525926U CN205690489U CN 205690489 U CN205690489 U CN 205690489U CN 201620525926 U CN201620525926 U CN 201620525926U CN 205690489 U CN205690489 U CN 205690489U
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Abstract
This utility model provides direct-connected big temperature difference heat-exchanger rig, and its structure includes: water recovery apparatus, high-temperature evaporator, cryogenic vaporizer, condenser, ejector, several valve, water pump and some connecting lines.Having the high-temperature-hot-water of certain pressure by water recovery apparatus from what heating network came, enter high-temperature evaporator, the most step by step flash distillation, surplus hot water is to heat user heat supply；Heat user heat supply backwater, enters cryogenic vaporizer, the most step by step flash distillation, and surplus hot water flows through water recovery apparatus and returns heat supply network；Ejector utilize high-temperature evaporator flash-off steam for drive steam, injection cryogenic vaporizer steam enter condenser, to heat supply backwater heat after, to heat user heat supply.On the sidewall of the afterbody of condenser, it is provided with a vacuum air pump, extracts the on-condensible gases such as air out, maintain the vacuum of whole equipment.Wherein water recovery apparatus be by hot water circuit from power-assisting device, it utilizes the pressure of heat supply network water to do work, and the heat supply network backwater that boost pressure is not enough returns heat supply network pipeline.
Description
Technical field
This utility model relates to heat power engineering, particularly relates to a kind of direct-connected big temperature difference heat-exchanger rig.
Background technology
In recent years, along with the development of China's urban construction, the contradiction between regional development and heat demand is the most increasingly
Highlight.City, all cities area is all constantly expanding, and main city zone scale community is continuously increased, and old town the most significantly increases newly
Area, the area of Xincheng District the most constantly expands.Thermal source from current city and heat supply network heat capacity, can not meet far away city
The needs that city is fast-developing.If heat supply does not catches up with, it will make urban development meet with bottleneck.
Centralized heating project is generally started concerning urban development and the contradiction of common people's vital interests, various places for solving this
Build, newly-increased area of heat-supply service, newly-increased construction investment.Specifically include newly-built pipe-networks engineering, part old net improvement project, newly-built relaying
Pumping plant, Ji Kong control centre, 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, specially power plant and power & light company are new
Increase networking area of heat-supply service, boiler room, Xincheng District heat supply network area of heat-supply service, district heating company heat supply network area of heat-supply service etc..
The pipeline of old town extended active duty is mainly replaced by heat supply network side, and heat supply pipeline can effectively be controlled after changing
Evaporating, emitting, dripping or leaking of liquid or gas processed, greatly reduces and stops hot number of times because of what tube leaks caused, greatly improve heating effect.
Certain old town realizes central heating in nineteen eighty-three JIUYUE, and pipe network has run 27 years.Through measuring, 1985
The old pipe network caliber year installed is thinned to 4-6mm by 10mm when originally installing, and severe local corrosion, and at heat supply phase warp
Leakage event often occurs.Heating network section of tubing extends service in the army, tube leaks phenomenon often occurs, cause during heat supply
Heating quality declines.If do not transformed, once generator tube leakage of pipeline, stage must stop heat, resident living can be made by this
Become the biggest impact.Old town heating network is transformed by power & light company's investment, changes all thinning and pipeline of corrosion, changes
Make scope pipe network total length about 5 kilometers, relate to 570,000 square meter area of heat-supply services, be roughly equal to user 5000 family, inject capital into 17,000,000 yuan.Work
After journey has been transformed, it is greatly improved this district heating quality and the stability of heat supply.Through pipe network improving, main city zone thermal source fills
Foot, it is possible to bear the normal heat supply of resident, retail shop and enterprise.
Certain power plant's heat supply main pipeline network construction service life great majority are all more than 18 years, and have is even up to 30 years.This portion
Be in charge of net due to building time long, add construction technical matters in period fall behind, to making insulation, overcoat serious damage, pipe network
Aging, seriously corroded.In recent years, supervisor's net leakage accident frequently occurred, and each runtime occurs tens times.At every submain
During net repairing, repair personnel all suffers from more than 95 DEG C high pressure, the threats of high-temperature water, and repairing sluicing is all up to more than 30 little every time
Time, cause large area residential building to stop heat, the serious situation of part underground pipe network bursting by freezing.Central heating secondary network aspect exists
Problem is the most prominent, especially in early days building and the most grid-connected heat supply building, pipe abandon arcola room, the aging corrosion of pipe network
The weight of degree, serious threat city heat supply safety and affect orthobiosis of resident more than quantity.
Certain heat supply group heating network length 666 kilometers, wherein a secondary net length 165 kilometers, secondary network length 501 kilometers.
Built before nineteen ninety-five and be about 400 kilometers.Due to most of pipeline network construction time length, aging seriously corroded, cause pipe network system
Evaporating, emitting, dripping or leaking of liquid or gas is extremely serious, and radiation loss reaches 0.35 GJ/square metre year.The average temperature drop of heat distribution pipe network every kilometer is all 2
More than DEG C, the average percentage of water loss of pipe network system is about 3%.Owing to fluid loss is big, heat is lost serious, an almost all of secondary net,
The hydraulic misadjustment problem of secondary network all various degrees, cannot science regulate again owing to pipe network is aging, therefore heating enterprise
For hankering being difficult to ensure that the heating quality of user.
In decades, central heating cause is the development construction in China city and the raising of living standards of the people is made that weight
Big contribution.The most large-area central heating network is aging, seriously corroded has become as the outstanding problem affecting central heating, sternly
Heavily threaten city for thermally safe and common people orthobiosis.
Implementing central heating network transformation has been the task of top priority carrying out city heat supply work.Can be significantly by pipe network improving
Reduce the evaporating, emitting, dripping or leaking of liquid or gas of pipe network, reduce energy resource consumption and save the energy, improve energy utilization rate；Heat supply can be made to look forward to by pipe network improving
Sparetime university's amount uses of the new technology, new technology, improves the science regulating power of heating enterprise, improves overall heat supply level；Pass through pipe network
Transformation can General Promotion heating system safety and heat supply supportability, improve constantly the use thermal mass of numerous residents, benefit
The common people.Implementing central heating network transformation is the act benefited the nation and the people, and early implements early to be benefited.
Implementing central heating network improvement project, emphasis removes waste and old heat supply pipeline exactly, lays the new pipeline of heat supply, and this needs
Put into huge fund.How to accomplish to utilize existing pipeline, maybe can lay less or thinner pipeline, only spend less
Investment, equally reaches the heating load needed？This is design and the construction problem often thought deeply of scientific worker.
Utility model content
For newly-built or transform old heating network, solve the problem that heating load that heating network generally exists is not enough, this
Utility model provides one can reduce heat supply network return water temperature, thus increases the direct-connected big temperature difference heat exchange dress of heating network heating load
Put.
A kind of direct-connected big temperature difference heat-exchanger rig, its structure includes: high-temperature evaporator, cryogenic vaporizer, condenser, spray
Emitter, several valve, water pump and some connecting lines.
Its workflow is
(1) heating network come high-temperature-hot-water, enter the flash distillation step by step of multistage high-temperature evaporator, the surplus hot water after flash distillation to
Heat user heat supply；
(2) heat user heat supply backwater enters the flash distillation step by step of multistage cryogenic vaporizer, and the surplus hot water after flash distillation returns heat supply network；
(3) high-temperature evaporator flash-off steam at different levels is ejector driving steam, injection cryogenic vaporizer low-pressure steam at different levels,
The steam forming middle pressure enters condenser condensation chamber at different levels；
(4) heat user heat supply backwater respectively enter condenser at different levels in spray, be entered in condensation chamber at different levels
After steam heating, heat user is carried out heat supply；
(5) sidewall of the afterbody of condenser is provided with a vacuum air pump, is used for extracting the on-condensible gases such as air out,
Maintain the vacuum of whole device；
(6) structure of direct-connected big temperature difference heat-exchanger rig also includes a water recovery apparatus, and it is connected to high-temperature evaporator, low temperature
Between vaporizer and heating network, it has the recovery tank of two alternations, utilizes the pressure of heat supply network water, boosting heat supply network backwater
Return heat supply network pipeline.
Described high-temperature evaporator, its profile is a vertical pressure vessel, and its structure includes: water inlet, upper envelope
Head, first order steam (vapor) outlet, first order sieve plate, first order vaporization chamber, cylinder, second level sieve plate, second level vaporization chamber, the second level
Steam (vapor) outlet, third level sieve plate, third level vaporization chamber, third level steam (vapor) outlet, low head and outlet.
The high-temperature-hot-water come from heating network, after water recovery apparatus, by the water inlet at high-temperature evaporator upper cover top
Entrance high-temperature evaporator first order vaporization chamber, flash distillation at once after being sprayed downwards by numerous ducts of first order sieve plate, generation
Steam is flowed out by first order steam (vapor) outlet, enters first order ejector；Evaporation surplus hot water, is sprayed downwards by second level sieve plate
Drench trickling, enter second level vaporization chamber；In second level vaporization chamber and third level vaporization chamber, carry out same process successively；
Finally, the surplus hot water through multistage evaporation is flowed out from high-temperature evaporator outlet at bottom, and heat user is carried out heat supply.
Described cryogenic vaporizer, its profile is a vertical pressure vessel, and its structure includes: water inlet, upper envelope
Head, first order steam (vapor) outlet, first order sieve plate, first order vaporization chamber, cylinder, second level sieve plate, second level vaporization chamber, the second level
Steam (vapor) outlet, third level sieve plate, third level vaporization chamber, third level steam (vapor) outlet, low head and outlet.
The heat user heat supply backwater water inlet from cryogenic vaporizer upper cover top enters the evaporation of the cryogenic vaporizer first order
Room, flash distillation at once after being sprayed downwards by numerous ducts of first order sieve plate, the steam of generation passes through first order steam (vapor) outlet stream
Go out, enter first order ejector；Evaporation surplus hot water, sprays downwards trickling by second level sieve plate, enters second level vaporization chamber；
In second level vaporization chamber and third level vaporization chamber, carry out same process successively；Finally, heat user heat supply backwater is through too much
The surplus hot water of level evaporation is flowed out from cryogenic vaporizer outlet at bottom, after flowing through water recovery apparatus, returns heat supply network.
Described condenser, its profile is a vertical pressure vessel, and its structure includes: upper cover, the first order are steamed
Vapor inlet, first order sieve plate, first order water inlet, first order condensation chamber, cylinder, first order base plate, first order drain pipe, second
Level sieve plate, second level water inlet, second level condensation chamber, second level steam inlet, second level base plate, second level water-supply-pipe, the 3rd
Level sieve plate, third level water inlet, third level condensation chamber, third level steam inlet, low head, outlet and vacuum air pump.
Condenser has multi-stage condensing room, is parallel relationship between condensation chambers at different levels；Heat user heat supply backwater is divided into a few road and divides
Do not enter different condensation chambers: the first via enters the first order condensation chamber of condenser, sprays downwards from first order sieve plate, enter the
The steam of one-level condensation chamber, heats shower water, and the hot water after intensification falls on first order base plate, from first order drain pipe
Flow to low head；Second tunnel enters the second level condensation chamber of condenser, and from the second level, sieve plate sprays downwards, enters second level condensation
Shower water is heated by the steam of room, and hot water falls on the base plate of the second level, and from the second level, drain pipe flows to low head；3rd tunnel
Entering third level condensation chamber, spray downwards from third level sieve plate, shower water is heated by the steam entering third level condensation chamber,
Hot water falls on low head；The hot water accumulated on low head is flowed out by the outlet of the bottom of condenser, enters heat user
Row heat supply；On the sidewall of third level condensation chamber, it is provided with a vacuum air pump.
Described ejector, its structure includes: air intake, nozzle, suction chamber, suction inlet, diffuser pipe and diffuser pipe outlet.
The high temperature and high pressure steam that high-temperature evaporator produces, as the driving steam of ejector, through air intake, by spray
Mouth, high velocity jet enters suction chamber, owing to driving the effect of steam at high injection, presents low-voltage space, low temperature inside suction chamber
The Low Temperature Steam that vaporizer produces, enters suction chamber from suction inlet, and high temperature driven steam sweeps along low temperature to suck the common high speed of steam
Flowing, then after diffuser pipe slows down boosting, discharge from diffuser pipe outlet.
Described water recovery apparatus, its structure includes two recovery tanks, feed pump, pipeline and some valves.
Wherein the structure of the first recovery tank includes: heat supply network comes the mouth of a river, the first electrodynamic valve, the second electrodynamic valve, casing, hot water sky
Between, water piston, low-temperature water heating space, the first check valve, the second check valve, heat supply network water return outlet.
The structure of the second recovery tank includes: hot water outlet, the 3rd electrodynamic valve, the 4th electrodynamic valve, casing, hot water space, water
Piston, low-temperature water heating space, the 3rd check valve, the 4th check valve, back water pump, hot water inlet.
The workflow of water recovery apparatus is:
(1) heating network high-temperature-hot-water, is come the mouth of a river from heat supply network and flows into, entered the heat of the first recovery tank by the first electrodynamic valve
Hydrospace, high-temperature-hot-water promotes water piston to move down, and water piston pushes down on the low-temperature water heating in low-temperature water heating space, passes through
First check valve, through heat supply network water return outlet, returns the water return pipeline of heat supply network；
(2) flash distillation surplus hot water, i.e. low-temperature water heating in cryogenic vaporizer, by back water pump and the 4th check valve, from bottom
Enter the low-temperature water heating space of the second recovery tank, its upwardly water piston, high-temperature hot of water piston upwardly hot water space
Water, by the 4th electrodynamic valve, is sent to high-temperature evaporator；
(3) cryogenic vaporizer flash distillation surplus hot water, i.e. low-temperature water heating, through back water pump and the second check valve, enters from bottom
The low-temperature water heating space of the first recovery tank, its upwardly water piston, the high-temperature-hot-water of water piston upwardly hot water space is high
Warm water is sent to high-temperature evaporator by the second electrodynamic valve；
(4) heating network high-temperature-hot-water, enters the hot water space of the second recovery tank through the 3rd electrodynamic valve, promotes water piston
Moving down, water piston pushes down on the low-temperature water heating in low-temperature water heating space, returns heat supply network water return pipeline by the 3rd check valve.
Accompanying drawing explanation
Fig. 1 is the overall pattern of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model；
Fig. 2 is the high-temperature evaporator structure chart of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model；
Fig. 3 is the cryogenic vaporizer structure chart of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model；
Fig. 4 is the condenser structure figure of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model；
Fig. 5 is the emitter construction figure of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model；
Fig. 6 is the water recovery apparatus structure chart of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described in further detail.
Fig. 1 gives the overall pattern of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
The population structure of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model, its structure includes: water recovery apparatus
100, high-temperature evaporator 200, cryogenic vaporizer 300, condenser 400, ejector 500, several valve, water pump and some connecting tubes
Road.In shape, from left to right it is divided into four bulks: 1, water recovery apparatus 100；2, vertical multistage high-temperature evaporator 200；3, vertical
Multistage cryogenic vaporizer 300；4, vertical multi-stage condensing device 400.At high-temperature evaporator 200, cryogenic vaporizer 300 and condenser
The steam jet ejector 500 of level is had between every grade of 400.
Its workflow is
1, the high-temperature-hot-water having certain pressure come from heating network, comes the mouth of a river 101 from heat supply network and flows into, pass through water recovery apparatus
100, through hot water outlet 102, enter high-temperature evaporator 200；
2, high-temperature evaporator 200 is a multi-stage evaporator, and hot water, in high-temperature evaporator 200, dodges the most step by step
Steaming, wherein, first order flash-off steam flows out from steam (vapor) outlet 205；
3, the surplus hot water after flash distillation step by step, flow out from the bottom of high-temperature evaporator 200, through feed pump 230, from heat supply
Outlet 602 flows out, to heat user heat supply；
4, heat user heat supply backwater, it is the relatively low hot water of temperature, enters from heat supply water return outlet 601, through valve 320, enter
Cryogenic vaporizer 300；
5, cryogenic vaporizer 300 is a multi-stage evaporator, heat supply backwater in cryogenic vaporizer 300, from top to bottom by
Level flash distillation, wherein, first order flash-off steam flows out from steam (vapor) outlet 305；
6, the surplus hot water after the flash distillation step by step of heat supply backwater, is low-temperature water heating, flows out from the bottom of cryogenic vaporizer 300,
Flow through water recovery apparatus 100 from hot water inlet 103, then from heat supply network water return outlet 104, return heat supply network；
7, ejector 500 utilizes the first order flash-off steam of high-temperature evaporator 200 for driving steam, injection cryogenic vaporizer
The low pressure water vapor of 300 first order steam (vapor) outlets 305, the two is mixed to form the steam of middle pressure, from the outlet of ejector 500
Ejection, enters the first order steam inlet 405 of condenser 400；
8, high-temperature evaporator 200 is a multi-stage evaporator, and second, third grade of flash-off steam, respectively from second, third level
Steam (vapor) outlet flow out, respectively enter second, third grade of ejector as drive steam, injection cryogenic vaporizer 300 second, third
The low pressure water vapor of level, is mixed to form medium pressure steam, from ejector outlet ejection, respectively enter condenser 400 second, the
Three grades of steam inlets；
9, condenser 400 is a multi-stage condensing device, and heat user heat supply backwater enters from heat supply water return outlet 601, through valve
450 and several branch road valve, respectively enter condenser at different levels in spray.Condenser 400 is entered from steam inlets at different levels
Medium pressure steam at different levels, carries out contact heating to the heat supply backwater of spray, and the heating water after heat temperature raising is from condensation
The bottom of device is flowed out, and through feed pump 460, arrives for hot water outlet 602, heat user is carried out heat supply.The afterbody of condenser
Sidewall on, be provided with a vacuum air pump, extract the on-condensible gases such as air out, maintain the vacuum of whole equipment.
Fig. 2 gives the high-temperature evaporator structure chart of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
The high-temperature evaporator of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model, its profile be one vertical
Pressure vessel, its structure includes: water inlet 201, upper cover 202, first order steam (vapor) outlet 205, first order sieve plate 210,
One-level vaporization chamber 206, cylinder 203, second level sieve plate 220, second level vaporization chamber 216, second level steam (vapor) outlet 215, the third level
Sieve plate 230, third level vaporization chamber 226, third level steam (vapor) outlet 225, low head 235 and outlet 240.
The high-temperature-hot-water having certain pressure come from heating network, after water recovery apparatus, by high-temperature evaporator upper cover
The water inlet 201 at 202 tops enters high-temperature evaporator, then is sprayed downwards by numerous ducts of first order sieve plate 210, enters downwards
Enter the first order vaporization chamber 206 in high-temperature evaporator.
Due to the first order steam (vapor) outlet 205 of first order vaporization chamber 206, connected by ejector and be in the cold of vacuum state
Condenser, the pressure in first order vaporization chamber 206 less than the saturation pressure corresponding to hot water temperature of spray, so, hot water enters the
Flash distillation at once after one-level vaporization chamber 206 spray, part hot water is evaporated to steam.The steam that first order vaporization chamber 206 evaporation produces,
Flowed out by first order steam (vapor) outlet 205, enter first order ejector.Evaporation surplus hot water, downward by second level sieve plate 220
Spray trickling, enters second level vaporization chamber.
In second level vaporization chamber 216 and third level vaporization chamber 226, carry out same process successively.
Finally, carrying out high-temperature-hot-water from heating network, although be the surplus hot water through multistage evaporation, it still has higher temperature
Degree, flows downward out from the outlet 240 of bottom, directly heat user is carried out heat supply.
Sieve plate is porous plate, and its effect is:
1, for given discharge, 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
Centimetre, so that the vapor phase space of vaporization chamber is not communicated with up and down；
2, spray the water surface flowed down from sieve plate, should have enough areas, to ensure the heat exchange needs that water evaporates；
3, the diameter of the throughbore on sieve plate, usually 6～8 millimeters, it is impossible to little 6 millimeters, to prevent blocking.
Fig. 3 gives the cryogenic vaporizer structure chart of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
The cryogenic vaporizer of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model, its profile be one vertical
Pressure vessel, its structure includes: water inlet 301, upper cover 302, first order steam (vapor) outlet 305, first order sieve plate 310,
One-level vaporization chamber 306, cylinder 303, second level sieve plate 320, second level vaporization chamber 316, second level steam (vapor) outlet 315, the third level
Sieve plate 330, third level vaporization chamber 326, third level steam (vapor) outlet 325, low head 335 and outlet 340.
Heat user heat supply backwater, is the relatively low hot water of temperature, after heat supply water return outlet enters, through valve, steams from low temperature
Send out the water inlet 301 at device upper cover 302 top, enter cryogenic vaporizer.
Cryogenic vaporizer is a multi-stage evaporator, heat supply backwater in cryogenic vaporizer, flash distillation the most step by step.
First, spray downwards from numerous ducts of first order sieve plate 310, enter first order vaporization chamber 306.
Due to the first order steam (vapor) outlet 305 of first order vaporization chamber 306, connecting ejector suction chamber, suction chamber is in very
Dummy status, has influence on the saturation pressure that the pressure in first order vaporization chamber 306 is corresponding less than the hot water temperature of spray, so, heat
Water spray enters flash distillation at once after first order vaporization chamber 306, and part hot water is evaporated to steam.First order vaporization chamber 306 evaporation is produced
Raw steam, is flowed out by first order steam (vapor) outlet 305, enters first order ejector.
First order vaporization chamber 306 evaporates surplus hot water, sprays downwards trickling by numerous ducts of second level sieve plate 320,
Enter second level vaporization chamber 316.
In second level vaporization chamber 316 and third level vaporization chamber 326, carry out same process successively.
Finally, the surplus hot water of heat user heat supply backwater, owing to through multistage evaporation, its temperature is relatively low, arrive lower envelope
After 335, then flow out from the outlet 340 of bottom, after flowing through water recovery apparatus, return heat supply network.
Sieve plate is porous plate, and its effect is:
1, for given discharge, 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
Centimetre, so that the vapor phase space of vaporization chamber is not communicated with up and down；
2, spray the water surface flowed down from sieve plate, should have enough areas, to ensure the heat exchange needs that water evaporates；
3, the diameter of the throughbore on sieve plate, usually 6～8 millimeters, it is impossible to little 6 millimeters, to prevent blocking.
Fig. 4 gives the condenser structure figure of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
The condenser of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model, its profile is a vertical pressure
Container, its structure includes: upper cover 401, first order steam inlet 405, first order sieve plate 406, first order water inlet 410,
First order condensation chamber 413, cylinder 407, first order base plate 412, first order drain pipe 422, second level sieve plate 416, second are grading
The mouth of a river 420, second level condensation chamber 423, second level steam inlet 415, second level base plate 422, second level water-supply-pipe the 432, the 3rd
Level sieve plate 426, third level water inlet 430, third level condensation chamber 433, third level steam inlet 425, low head 435, outlet
440 and vacuum air pump 450.
Condenser is a multi-stage condensing device, but is parallel relationship between condensation chamber at different levels.
Heat user heat supply backwater is divided into the trickling of a few road after heat supply water return outlet enters, and respectively enters different condensation chambers and carries out
Heating process.
Wherein a road is through first order water inlet 410, enters in the first order condensation chamber 413 of condenser, sieves from the first order
Numerous ducts of plate 406 spray downwards trickling.The spray of condenser first order condensation chamber 413 is entered from first order steam inlet 405
The medium pressure steam that emitter is come, carries out contact heating to the heat supply backwater of spray, and the heating water after heat temperature raising falls the
On one-level base plate 412, then flow to low head 435 from first order drain pipe 422.
Another road of heat user heat supply backwater, through second level water inlet 420, enters the second level condensation chamber of condenser
In 423, spray downwards trickling from numerous ducts of second level sieve plate 416.Condenser second is entered from second level steam inlet 415
The medium pressure steam that the ejector of level condensation chamber 423 comes, carries out contact heating, after heat temperature raising to the heat supply backwater of spray
Heating water falls on second level base plate 422, then flows to low head 435 from second level drain pipe 432.
3rd tunnel of heat user heat supply backwater, through third level water inlet 430, enters the third level condensation chamber of condenser
In 433, spray downwards trickling from numerous ducts of third level sieve plate 426.Condenser the 3rd is entered from third level steam inlet 425
The medium pressure steam that the ejector of level condensation chamber 433 comes, carries out contact heating, after heat temperature raising to the heat supply backwater of spray
Heating water falls on low head 435.
Accumulating in the hot water on low head 435, the outlet 440 finally by the bottom of condenser flows out.
On the sidewall of the third level condensation chamber of condenser, it is provided with a vacuum air pump 450, extracts the fixed gases such as air out
Body, maintains the vacuum of whole equipment.
The purpose using the condenser of parallel condensing room is to there be minimum pressure in making each condensation chamber, thus acts on
In the suction chamber of ejector, can more effectively injection cryogenic vaporizer, make the evaporation of heat supply backwater have the temperature drop of maximum, so that existing
There is heating network can provide the heating load of maximum.
Fig. 5 gives the emitter construction figure of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
The structure of the steam jet ejector of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model includes: air intake 501,
Nozzle 505, suction chamber 510, suction inlet 520, diffuser pipe 515 and diffuser pipe outlet 516.
The high temperature and high pressure steam that high-temperature evaporator produces, as the driving steam of ejector, through air intake 501, passes through
Nozzle 505, high velocity jet enters suction chamber 510.Owing to driving the effect of steam at high injection, make great efforts flow equation according to one hundred,
Suction chamber 510 inside is made to present low-voltage space.Under steam pressure difference effect, the Low Temperature Steam that cryogenic vaporizer produces, from suction
Mouth 520 enters suction chambers 510.In suction chamber 510, high-speed driving steam receives to sweep along is taken out Low Temperature Steam, in common high velocity stream
Disorder of internal organs, two kinds of steam, average rates, all presses, then reducing pipe, trunnion and the increaser through diffuser pipe 515, deceleration supercharging, is formed
After mixed uniformly medium pressure steam, through diffuser pipe outlet 516 discharge.
Fig. 6 gives the water recovery apparatus structure chart of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model.
The water recovery apparatus of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model, it is direct-connected big temperature difference heat-exchanger rig
Between embodiment and heating network, carry out hot water circuit from power-assisting device.It utilizes the pressure of heat supply network water to do work, boosting
The heat supply network backwater of insufficient pressure returns heat supply network pipeline.
The water recovery apparatus of the direct-connected big temperature difference heat-exchanger rig embodiment of this utility model, its structure include two recovery tanks,
Feed pump, pipeline and some valves.
The structure of the first recovery tank 130 includes: heat supply network comes the mouth of a river the 101, first electrodynamic valve the 131, second electrodynamic valve 132, case
Body 138, hot water space 133, water piston 134, low-temperature water heating space the 135, first check valve the 136, second check valve 137, heat supply network
Water return outlet 104；
The structure of the second recovery tank 160 includes: hot water outlet the 102, the 3rd electrodynamic valve the 161, the 4th electrodynamic valve 162, casing
168, hot water space 163, water piston 164, low-temperature water heating space the 165, the 3rd check valve the 166, the 4th check valve 167, back water pump
110, hot water inlet 103.
Water recovery apparatus has two work process alternately:
First work process is that the first recovery tank water piston declines, and meanwhile, the second recovery tank water piston rises, and is specially
1, the high-temperature-hot-water having certain pressure come from heating network, comes the mouth of a river 101 from heat supply network and flows into, by casing 138
On upper cover, the first electrodynamic valve 131 enters the first recovery tank 130.First recovery tank casing 138 is a vertical pressure vessel,
Its inner upper is hot water space 133；There is water piston 134 centre, and it can move up and down along with current；Water piston 134 with
It it is down low-temperature water heating space 135.
2, the high-temperature-hot-water entering the first recovery tank hot water space 133 has higher pressure, and it pushes down on water piston 134
Moving down, water piston 134 is existing low-temperature water heating in pushing down on low-temperature water heating space 135, by the first check valve 136,
Through heat supply network water return outlet 104, return the water return pipeline of heat supply network.
3, surplus hot water after flash distillation, i.e. low-temperature water heating step by step in cryogenic vaporizer, flow to backwater from hot water inlet 103
Device, then pressurize through back water pump 110, by the 4th check valve 167, enter the low-temperature water heating space of the second recovery tank 160 from bottom
165, its upwardly water piston 164, the water piston 164 upwardly existing high-temperature-hot-water of hot water space 163, by the 4th
Electrodynamic valve 162, then flowed out by hot water outlet 102, flow to high-temperature evaporator.
Second work process is that the first recovery tank water piston rises, and meanwhile, the second recovery tank water piston declines, and is specially
1, surplus hot water after flash distillation, i.e. low-temperature water heating step by step in cryogenic vaporizer, flow to backwater from hot water inlet 103
Device, then pressurize through back water pump 110, by the second check valve 137, enter the low-temperature water heating space of the first recovery tank 130 from bottom
135, its upwardly water piston 134, the water piston 134 upwardly existing high-temperature-hot-water of hot water space 133, by the second electricity
Dynamic valve 132, then flowed out by hot water outlet 102, it is sent to high-temperature evaporator.
2, the high-temperature-hot-water having certain pressure come from heating network, comes the mouth of a river 101 from heat supply network and flows into, by casing 168
On upper cover, the 3rd electrodynamic valve 161 enters the hot water space 163 of the second recovery tank 160.Second recovery tank inner upper is hot water
Space 163；There is water piston 164 centre；Water piston less than 164 is low-temperature water heating space 165.
3, the high-temperature-hot-water entering the second recovery tank hot water space 163 has higher pressure, and it pushes down on water piston 164
Moving down, water piston 164 is existing low-temperature water heating in pushing down on low-temperature water heating space 165, by the 3rd check valve 166,
Heat supply network water return pipeline is returned through heat supply network water return outlet 104.
Second work process returns to the first work process after terminating, two work process alternately, complete heat supply jointly
Hot water circuit process between pipe network and direct-connected big temperature difference heat-exchanger rig.
Claims (6)
1. a direct-connected big temperature difference heat-exchanger rig, its structure includes: high-temperature evaporator, cryogenic vaporizer, condenser, injection
Device, several valve, water pump and some connecting lines；Its workflow is the high-temperature-hot-water that (1) heating network comes, and enters multistage
High-temperature evaporator flash distillation step by step, the surplus hot water after flash distillation is to heat user heat supply；(2) heat user heat supply backwater enters many grade low-temps
Vaporizer flash distillation step by step, the surplus hot water after flash distillation returns heat supply network；(3) high-temperature evaporator flash-off steam at different levels is that ejector drives
Steam, injection cryogenic vaporizer low-pressure steam at different levels, the steam forming middle pressure enters condenser condensation chamber at different levels；(4) heat
User's heat supply backwater respectively enter condenser at different levels in spray, after the heating of the steam that is entered in condensation chamber at different levels, right
Heat user carries out heat supply；(5) sidewall of the afterbody of condenser is provided with a vacuum air pump, is used for extracting air etc. out no
Solidifying gas, maintains the vacuum of whole device, it is characterised in that: the structure of direct-connected big temperature difference heat-exchanger rig also includes that one is returned
Hydrophone, it is connected between high-temperature evaporator, cryogenic vaporizer and heating network, and it has the recovery tank of two alternations, profit
With the pressure of heat supply network water, boosting heat supply network backwater returns heat supply network pipeline.
2. according to the direct-connected big temperature difference heat-exchanger rig of the one described in claim 1, it is characterised in that: described high-temperature evaporator,
Its profile is a vertical pressure vessel, and its structure includes: water inlet, upper cover, first order steam (vapor) outlet, the first order
Sieve plate, first order vaporization chamber, cylinder, second level sieve plate, second level vaporization chamber, second level steam (vapor) outlet, third level sieve plate, the 3rd
Level vaporization chamber, third level steam (vapor) outlet, low head and outlet；The high-temperature-hot-water come from heating network is after water recovery apparatus, logical
The water inlet crossing high-temperature evaporator upper cover top enters high-temperature evaporator first order vaporization chamber, numerous by first order sieve plate
Duct spray downwards after flash distillation at once, the steam of generation is flowed out by first order steam (vapor) outlet, enter first order ejector；Evaporation
Surplus hot water, sprays downwards trickling by second level sieve plate, enters second level vaporization chamber；Steam at second level vaporization chamber and the third level
Send out indoor, carry out same process successively；Finally, through the surplus hot water of multistage evaporation from high-temperature evaporator outlet at bottom stream
Go out, heat user is carried out heat supply.
3. according to the direct-connected big temperature difference heat-exchanger rig of the one described in claim 1, it is characterised in that: described cryogenic vaporizer,
Its profile is a vertical pressure vessel, and its structure includes: water inlet, upper cover, first order steam (vapor) outlet, the first order
Sieve plate, first order vaporization chamber, cylinder, second level sieve plate, second level vaporization chamber, second level steam (vapor) outlet, third level sieve plate, the 3rd
Level vaporization chamber, third level steam (vapor) outlet, low head and outlet；Heat user heat supply backwater is from cryogenic vaporizer upper cover top
Water inlet entrance cryogenic vaporizer first order vaporization chamber, flash distillation at once after being sprayed downwards by numerous ducts of first order sieve plate,
The steam produced is flowed out by first order steam (vapor) outlet, enters first order ejector；Evaporation surplus hot water, by second level sieve plate
Spray downwards trickling, enter second level vaporization chamber；In second level vaporization chamber and third level vaporization chamber, carry out same successively
Process；Finally, heat user heat supply backwater flows out from cryogenic vaporizer outlet at bottom through the surplus hot water of multistage evaporation, flows through back
After hydrophone, return heat supply network.
4. according to the direct-connected big temperature difference heat-exchanger rig of the one described in claim 1, it is characterised in that: described condenser, it
Profile is a vertical pressure vessel, and its structure includes: upper cover, first order steam inlet, first order sieve plate, the first order
Water inlet, first order condensation chamber, cylinder, first order base plate, first order drain pipe, second level sieve plate, second level water inlet, second
Level condensation chamber, second level steam inlet, second level base plate, second level water-supply-pipe, third level sieve plate, third level water inlet, the 3rd
Level condensation chamber, third level steam inlet, low head, outlet and vacuum air pump；Condenser has multi-stage condensing room, condensations at different levels
It it is parallel relationship between room；Heat user heat supply backwater is divided into a few road and respectively enters different condensation chambers: the first via enters condenser
First order condensation chamber, spray downwards from first order sieve plate, enter first order condensation chamber steam, shower water is heated,
Hot water after intensification falls on first order base plate, flows to low head from first order drain pipe；Second tunnel enters the second of condenser
Level condensation chamber, from the second level, sieve plate sprays downwards, and shower water is heated by the steam entering second level condensation chamber, and hot water falls
On the base plate of the second level, from the second level, drain pipe flows to low head；3rd tunnel enters third level condensation chamber, downward from third level sieve plate
Spray, shower water is heated by the steam entering third level condensation chamber, and hot water falls on low head；Accumulate on low head
Hot water is flowed out by the outlet of the bottom of condenser, and heat user is carried out heat supply；On the sidewall of third level condensation chamber, it is provided with one
Individual vacuum air pump.
5. according to the direct-connected big temperature difference heat-exchanger rig of the one described in claim 1, it is characterised in that: described ejector, it
Structure includes: air intake, nozzle, suction chamber, suction inlet, diffuser pipe and diffuser pipe outlet；The high temperature that high-temperature evaporator produces is high
Pressure steam, as the driving steam of ejector, through air intake, by nozzle, high velocity jet enters suction chamber, steams owing to driving
The effect of vapour high velocity jet, presents low-voltage space inside suction chamber, the Low Temperature Steam that cryogenic vaporizer produces enters from suction inlet
Suction chamber, high temperature driven steam sweep along low temperature suck the common flow at high speed of steam, then through diffuser pipe slow down boosting after, from diffuser pipe
Outlet is discharged.
6. according to the direct-connected big temperature difference heat-exchanger rig of the one described in claim 1, it is characterised in that: described water recovery apparatus, it
Structure includes two recovery tanks, feed pump, pipeline and some valves；Wherein the structure of the first recovery tank includes: heat supply network come the mouth of a river,
First electrodynamic valve, the second electrodynamic valve, casing, hot water space, water piston, low-temperature water heating space, the first check valve, second unidirectional
Valve, heat supply network water return outlet；The structure of the second recovery tank includes: hot water outlet, the 3rd electrodynamic valve, the 4th electrodynamic valve, casing, hot water are empty
Between, water piston, low-temperature water heating space, the 3rd check valve, the 4th check valve, back water pump, hot water inlet；The workflow of water recovery apparatus
For: (1) heating network high-temperature-hot-water, come the mouth of a river from heat supply network and flow into, the hot water being entered the first recovery tank by the first electrodynamic valve is empty
Between, high-temperature-hot-water promotes water piston to move down, and water piston pushes down on the low-temperature water heating in low-temperature water heating space, by first
Check valve, through heat supply network water return outlet, returns the water return pipeline of heat supply network；(2) flash distillation surplus hot water, i.e. Low Temperature Thermal in cryogenic vaporizer
Water, by back water pump and the 4th check valve, enters the low-temperature water heating space of the second recovery tank from bottom, its upwardly water work
Plug, the high-temperature-hot-water of water piston upwardly hot water space, by the 4th electrodynamic valve, is sent to high-temperature evaporator；(3) low-temperature evaporation
Device flash distillation surplus hot water, i.e. low-temperature water heating, through back water pump and the second check valve, enter the low-temperature water heating of the first recovery tank from bottom
Space, its upwardly water piston, the high-temperature-hot-water of water piston upwardly hot water space, high-temperature-hot-water passes through the second electrodynamic valve
It is sent to high-temperature evaporator；(4) heating network high-temperature-hot-water, enters the hot water space of the second recovery tank, pushes away through the 3rd electrodynamic valve
Dynamic water piston moves down, and water piston pushes down on the low-temperature water heating in low-temperature water heating space, returns heat supply network by the 3rd check valve
Water return pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620525926.7U CN205690489U (en) | 2016-05-27 | 2016-05-27 | Direct-connected big temperature difference heat-exchanger rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620525926.7U CN205690489U (en) | 2016-05-27 | 2016-05-27 | Direct-connected big temperature difference heat-exchanger rig |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403629A (en) * | 2016-11-28 | 2017-02-15 | 哈尔滨工大金涛科技股份有限公司 | Waste water waste heat evaporator |
| CN106705686A (en) * | 2016-12-26 | 2017-05-24 | 杨胜东 | Negative pressure self-cooled steam jet type heat pump and system thereof |
| CN107435973A (en) * | 2016-05-27 | 2017-12-05 | 哈尔滨工大金涛科技股份有限公司 | Direct-connected big temperature difference heat-exchanger rig |
| 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 |
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2016
- 2016-05-27 CN CN201620525926.7U patent/CN205690489U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107435973A (en) * | 2016-05-27 | 2017-12-05 | 哈尔滨工大金涛科技股份有限公司 | Direct-connected big temperature difference heat-exchanger rig |
| CN107435973B (en) * | 2016-05-27 | 2020-12-22 | 哈尔滨工大金涛科技股份有限公司 | Direct-connected large-temperature-difference heat exchange device |
| CN106403629A (en) * | 2016-11-28 | 2017-02-15 | 哈尔滨工大金涛科技股份有限公司 | Waste water waste heat evaporator |
| CN106705686A (en) * | 2016-12-26 | 2017-05-24 | 杨胜东 | Negative pressure self-cooled steam jet type heat pump and system thereof |
| 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 |
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