CN105091408B - Steam jet heat pump - Google Patents
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Abstract
The present invention provides a kind of steam jet heat pump, and its primary structure includes：Evaporator, condenser and steam jet ejector；Steam jet ejector is flowed out by the use of high steam as working steam, injection low-pressure steam, the middle pressure steam of formation from injector；Middle low-temperature wastewater enters evaporation in evaporator and produces low-pressure steam, and low-pressure steam, by working steam injection, enters condenser condensation heat, for heating recirculated water in steam jet ejector after the two mixing, it is characterised in that：Described condenser, it is by series above and below three dividing wall type heat exchangers.The steam jet ejector, its structure include：Steam inlet pipe, nozzle, suction room, diffuser pipe entrance, diffuser pipe throat and diffuser pipe divergent segment；The high-pressure work steam come from steam boiler, into steam jet ejector, in nozzle exit, injection steam stream at a high speed is formed, injection evaporator steam enters suction room, after reaching a middle pressure by diffuser pipe, into condenser.
Description
Technical field
The present invention relates to heat pump techniques, more particularly to a kind of steam jet heat pump.
Background technology
China has been the big country of steel and Chemical Manufacture.
The annual production of steel accounts for the 40% of Gross World Product.Either steel-making or ironmaking, will produce substantial amounts of clinker.
Clinker is accompanied generation with steel, and it is the byproduct of smelting iron and steel, is a series of primary condition of important metallurgical reactions again,
It directly participates in the physical-chemical reaction and mass-and heat-transfer process of steel smelting procedure, and it not only has influence on iron and steel output, quality,
And there is close relationship with the consumption of raw material, energy.
In Ferrous Metallurgy stove, 1400-2000 DEG C of high temperature furnace slag is produced, enters flushing cinder after cinder notch flows out, then through slag runner
During chute, with certain water, hydraulic pressure and the chute gradient, water is set to be burst with slag stream into certain angle of cut, slag by cold shock
Into the qualified grain slag of certain particle size.After pulp water separation, clinker is used as construction material；The flushing cinder of heat exchange is carried out with high temperature furnace slag
Water, into flushing cinder pond.Flushing cinder pond generally takes up an area thousands of square metres, and hot vapour is soared above flushing cinder pond, such washing slag water,
It is the warm effluent that temperature is maintained at 60-70 DEG C throughout the year, is a huge potential heat energy energy, if can effectively be subject to
Utilizing, such as utilize the heat energy of washing slag water, winter heats for residential block, can be not only that country saves a large amount of fuel, and
Reduce carbon emission, protect environment.
The heat energy recycle problem of washing slag water, is not well solved also so far.
Due to washing slag water Reusability, the plurality of inorganic salt contained in clinker and oxide have been dissolved into washing slag water, has been formed
The almost saline and alkaline aqueous solution of saturation.During clinker is burst into grain slag by cold shock, some tiny clinker
Suspended into water.Through actually detected, flushing cinder water turbidity is 60-80mg/l.
Certain heating enterprise, by dividing wall type heat exchanger, by the heat transfer of washing slag water to recirculated water, using recirculated water to residence
Heat in people area.Only one winter, the heating duration less than 4 months, the washing slag water side of dividing wall type heat exchanger, fouling reach 3-5 lis
Rice, dirty layer is hard, becomes loose after weathering.Think after analysis, the composition of washing slag water fouling in heat exchanger contains crystallization to be a variety of
The inorganic salts of water, such as the silicate containing the crystallization water.The hard crystallization incrustation scale of washing slag water, makes dividing wall type heat exchanger almost report completely
It is useless.
Filter filtering washing slag water is attempted to, to solve the problems, such as washing slag water scaling on heat exchangers.Washing slag water is
The saline-alkali water of Multiple components, it is completely useless for saline-alkali water, filter.Saline-alkali water can pass through any filter, and
Arrive inside heat exchanger, run into cold heat exchanger wall, saline-alkali water cooling, supersaturation, crystallized at once on cold wall face.
Chemical industry chemical fertilizer production enterprise, is distributed in many counties and cities, in its production process, produces a large amount of middle low-temperature wastewaters.
For example, produce the chemical plant of ammonia and nitrogenous fertilizer using semiwater gas method, in high-temperature water gas by spray column cleaning process,
A large amount of 40-70 DEG C very dirty middle low-temperature wastewaters are produced, when reclaiming waste water heat using ordinary heat exchanger, heat exchanger is contaminated, drop
Low heat transfer ability, is also frequently occluded, it is impossible to works.Especially, when water temperature be less than 50 DEG C, exchanged heat using heat exchanger, for heating
It is not worth.
As described above, in industrial or agricultural and people's lives, various middle low-temperature wastewaters are discharged, due to low temperature in these
The impurity component that contains in waste water is complicated, if reclaiming heat energy using common dividing wall type heat exchanger, heat exchanger partition soon by
Scaling fouling and cisco unity malfunction；And when wastewater temperature is relatively low, utilize heat exchanger recovery heat, it is impossible to meet user for
The requirement of heat supply temperature.
The above-mentioned background technology about Sewage heat energy recycle, has a detailed description in following monograph：
1st, it is remaining to build ancestral and write, heat exchanger principle and design, Beijing：Publishing house of BJ University of Aeronautics ＆ Astronautics, 2010.
2nd, Chen Dong is edited, heat pump techniques, Beijing：Chemical Industry Press, 2012.
The content of the invention
For the recovery of low-temperature wastewater heat energy in solving the problems, such as, the present invention provides a kind of steam jet heat pump.
A kind of steam jet heat pump, its primary structure include：Evaporator, condenser and steam jet ejector.
Steam jet ejector is by the use of high steam as working steam, injection low-pressure steam, and the middle pressure steam of formation is from injection
Device flows out；Middle low-temperature wastewater enters evaporation in evaporator and produces low-pressure steam, and low-pressure steam is steamed in steam jet ejector by work
Vapour injection, enter condenser condensation heat after the two mixing, for heating recirculated water, it is characterised in that：Described condensation
Device, it is by series above and below three dividing wall type heat exchangers.
Evaporator is vertical pressure vessel, and it is that its structure includes by series above and below three vaporization chambers：Water inlet
Pipe, upper cover, cylinder, the first sieve plate, the first vaporization chamber, the first steam (vapor) outlet, the second sieve plate, the second vaporization chamber, the second steam
Outlet, the 3rd sieve plate, the 3rd vaporization chamber, the 3rd steam (vapor) outlet, low head and drainpipe.
Middle low-temperature wastewater enters evaporator by water inlet pipe, by the first sieve plate, into the vaporization chamber of evaporator first, part
Evaporation produces steam, is flowed out by the first steam (vapor) outlet；First vaporization chamber evaporates remaining waste water, into the second vaporization chamber, second
Steam caused by vaporization chamber evaporation is flowed out by the second steam (vapor) outlet；Second vaporization chamber evaporates remaining waste water, into the 3rd evaporation
Room, steam caused by the evaporation of the 3rd vaporization chamber are flowed out by the 3rd steam (vapor) outlet；Final remaining waste water in 3rd vaporization chamber, under
The drainpipe outflow in portion.
Condenser is vertical pressure vessel, and its structure includes：Upper cover, cylinder, the first steam inlet, the first condensation
Room, the first dividing wall type heat exchanger, the first bottom plate, the first weep hole, the first connecting water pipe, the second steam inlet, the second condensation chamber,
Second dividing wall type heat exchanger, the second bottom plate, the second weep hole, the second connecting water pipe, the 3rd steam inlet, the 3rd condensation chamber,
Three dividing wall type heat exchangers, water inlet pipe, outlet pipe, low head, vacuum exhaust pipe and condensate pipe.
Heating circulation water backwater, enter condenser from bottom water inlet pipe, into the 3rd dividing wall type heat exchanger, by partition with
Steam heat-exchanging, steam condensation trickle downwards, and heating circulation water by the second connecting water pipe, is upwardly into the second wall-type heat exchange again
Device, continues through partition and steam heat-exchanging, then by the first connecting water pipe, is upwardly into the first dividing wall type heat exchanger, by
Wall and steam heat-exchanging, finally, the heating circulation water being heated by steam, flowed out by outlet pipe.
It is vertical downwards to flow into the first dividing wall type into the steam of the first condensation chamber of condenser by the first steam inlet
The upper and lower penetrating steam flow channel of heat exchanger, by partition to heating circulation heat transfer water, condensed after steam heat release, along heat exchange wall
Trickle downwards, flow to the first bottom plate, by the first weep hole, flow downwardly into the steam side of the second dividing wall type heat exchanger.
By second, third steam inlet, into the steam of second, third condensation chamber of condenser, pass through second, third
Wall type heat exchanger condenses to heating circulation heat transfer water, steam heat release.
Condensate caused by whole steam condensations, discharged by the condensate pipe of low head bottom.
In the side wall of condenser bottom, vacuum exhaust pipe is picked out, extracts the on-condensible gas in condenser out.
Steam jet ejector, its structure include：Steam inlet pipe, nozzle, suction room, diffuser pipe entrance, diffuser pipe throat and
Diffuser pipe divergent segment.
The high-pressure work steam come from steam boiler, by steam inlet pipe and nozzle, nozzle is contraction and enlargement nozzle, in jet expansion
Place, the supersonic speed steam stream of injection at a high speed is formed, makes suction interior formation low-pressure area, the evaporated vapor in injection evaporator enters
Room is sucked, and after being mixed with working steam, is further mixed into diffuser pipe entrance, in diffuser pipe throat, is changed into sonic flow
Dynamic steam stream, subsequently into diffuser pipe divergent segment, flow velocity reduces pressure increase, reaches a middle pressure, it compares working steam
Pressure is low, but higher than evaporator evaporation pressure, then by steam pipeline, into condenser.
Brief description of the drawings
Fig. 1 is the overall construction drawing of steam jet heat pump embodiment of the present invention；
Fig. 2 is the evaporation structure figure of steam jet heat pump embodiment of the present invention；
Fig. 3 is the condenser structure figure of steam jet heat pump embodiment of the present invention；
Fig. 4 is the steam jet ejector structure chart of steam jet heat pump embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the present invention is described in further detail.
Fig. 1 gives the overall construction drawing of steam jet heat pump embodiment of the present invention.
The general structure of steam jet heat pump embodiment of the present invention, is divided into left and right two major parts in shape：Left is vertical
The evaporator 100 of formula, right are vertical condensers 300, and there is steam jet ejector 200 centre.
Steam jet ejector 200 is the power-equipment of injection and compressed steam, and it has three inlet and outlet, and an import is to come from
The high steam that steam boiler provides is as working steam, and another import is the low-pressure steam in injection evaporator, uniquely
Outlet is that the middle pressure steam after working steam and jetting steam caused mixing compression exits into condenser from injector.
Middle low-temperature wastewater enters evaporator 100 by water inlet pipe 110, is entered by the first sieve plate 130 in evaporator 100
First vaporization chamber 135.Under the ejector action of steam jet ejector 200, the pressure in vaporization chamber 135 is less than low-temperature wastewater in import
Saturation pressure corresponding to temperature, so, middle low-temperature wastewater enter vaporization chamber 135 after at once part evaporate, be also known of flash distillation or
Dilatation.Steam caused by evaporation, by the first steam jet ejector 200, first into condenser 300 together with working steam is cold
Solidifying room 305.
Second, third vaporization chamber of evaporator 100 steam equally caused by evaporation, passes sequentially through the spray of second, third steam
Emitter, second, third condensation chamber of condenser 300 is entered together with working steam.
First, second, third vaporization chamber of evaporator 100 flashes remaining saturation waste water, and trickling downwards, finally enters successively
Enter the ponding room of the bottom of evaporator 100, then flowed downward out from the drainpipe 170 of bottom.Because the difference in height generation of draining is quiet
Pressure, wastewater pressure rise, becomes unsaturated water, then discharge through suction pump.
The backwater of heating circulation water, by feed pump, enter vertical (type) condenser from the water inlet pipe 345 of the bottom of condenser 300
300, in condenser 300, from bottom to top, heating circulation water is sequentially connected in series by three dividing wall type heat exchangers.Between three
After wall type heat exchanger, the heating circulation water that has been heated in condenser 300, by the top outlet pipe 325 of condenser 300, to
Provide heating hot water outside.
Caused steam in the vaporization chamber 135 of evaporator 100 first, together with working steam, from the first steam jet ejector 200
After the first condensation chamber 305 for horizontally entering into condenser 300, the first dividing wall type heat exchanger 320 is flowed downwardly into, passes through partition and circulation
Water exchanges heat, and steam heat release simultaneously condenses, downwards trickling.
Equally, caused steam in second, third vaporization chamber of evaporator 100, together with working steam, through second, third
After steam jet ejector horizontally enters into second, third condensation chamber of condenser 300, second, third dividing wall type heat exchanger is flowed downwardly into,
Exchanged heat by partition and recirculated water, after steam heat release and condensation, condensate trickles downwards.
Finally, the condensate of the accumulation of the bottom of condenser 300 is flowed to, by condensate pipe 365, condensed water pump discharge.
On the lower sides of condenser 300, there is a vacuum exhaust pipe 355.Vavuum pump by vacuum exhaust pipe 355 not
Extract the on-condensible gas in condenser out disconnectedly, main is exactly the dissolved gas that middle low-temperature wastewater separates out, and leak into system
Air, it thereby may be ensured that the vacuum in system.
Evaporator and condenser are upper and lower three-level in steam jet heat pump embodiment of the present invention, can also be up and down
Two-stage, or be four, Pyatyi.
Steam jet heat pump workflow is summarized as follows：
1, middle low-temperature wastewater enters evaporator 100 by inlet channel from top；
2, the pressure in evaporator 100 is low, and middle low-temperature wastewater enters after evaporator that part is evaporated at once；
3, caused steam in evaporator 100, together with working steam, by steam jet ejector 200, into condenser
300；
4, remaining waste water in evaporator 100, flowed downward out from the drainpipe 170 of bottom；
5, heating circulation water enters condenser 300 by the water inlet pipe 345 of condenser 300；
6, condenser 300 is dividing wall type heat exchanger, and the side of partition is evaporator steam, and opposite side is heating circulation water；
7, the heating circulation water being heated in condenser 300, flowed out by outlet pipe 325；
8, in the lower section of condenser 300, there is vacuum exhaust pipe 355, pass through the on-condensible gas in vacuum pumped condenser；
9, the steam condensate in condenser 300, flowed out by condensate pipe 365 and condensate pump.
Fig. 2 gives the evaporation structure figure of steam jet heat pump embodiment of the present invention.
The evaporator of steam jet heat pump embodiment of the present invention, its profile are a vertical pressure vessels, it
Structure includes：Water inlet pipe 110, upper cover 120, cylinder 150, the first sieve plate 130, the first vaporization chamber 135, the first steam (vapor) outlet
140th, the second sieve plate, the second vaporization chamber, the second steam (vapor) outlet, the 3rd sieve plate, the 3rd vaporization chamber, the 3rd steam (vapor) outlet, low head
160 and drainpipe 170.
Middle low-temperature wastewater enters evaporator, then first entered by the first sieve plate 130 in evaporator by water inlet pipe 110
Vaporization chamber 135, the pressure in vaporization chamber 135 are less than saturation pressure corresponding to low-temperature wastewater temperature in import, so, middle low temperature gives up
Water enters part evaporation at once after vaporization chamber 135, is also known of flash distillation or dilatation.
The first vaporization chamber of evaporator 135 evaporates caused steam, by the first steam (vapor) outlet 140, then passes through the first steam
Injector enters the first condensation chamber of condenser.
The first vaporization chamber of evaporator 135 evaporates remaining saturation waste water, passes downwardly through sieve plates at different levels, successively trickling downwards.
Steam caused by the evaporation of the vaporization chamber of evaporator second, by the second steam (vapor) outlet, then passes through the second steam jet ejector
Into the second condensation chamber of condenser.
The vaporization chamber of evaporator second evaporates remaining saturation waste water, passes downwardly through sieve plates at different levels, successively trickling downwards.
Steam caused by the evaporation of the vaporization chamber of evaporator the 3rd, by the 3rd steam (vapor) outlet, then passes through the 3rd steam jet ejector
Into the 3rd condensation chamber of condenser.
The vaporization chamber of evaporator the 3rd evaporates remaining saturation waste water, downwards trickling.
Finally, three-level evaporates remaining saturation waste water, is flowed downward out from the drainpipe 170 of bottom.Because falling head is poor
Static pressure is produced, wastewater pressure rise, becomes unsaturated water, then discharge through suction pump.
Sieve plate is porous plate, and its effect is：
1, for given water-carrying capacity, the water layer on sieve plate should be 2~5 cm thicks, to ensure the vapour phase of vaporization chamber up and down
Space is not communicated with；
2, the water surface that sieve plate flows down, there should be enough areas, to ensure the heat exchange needs between steam and water；
3, the diameter of the discharge orifice of sieve plate, usually 6~8 millimeters, it is impossible to it is small 6 millimeters, to prevent from blocking.
Fig. 3 gives the condenser structure figure of steam jet heat pump embodiment of the present invention.
The condenser of steam jet heat pump embodiment of the present invention, it is a vertical three section tandem wall-type heat exchange
Device, its profile are a pressure vessels, and its structure includes：Upper cover 310, cylinder 315, the first steam inlet 350, first
Condensation chamber 305, the first dividing wall type heat exchanger 320, the first bottom plate 330, the first weep hole 335, the first connecting water pipe 340, second
Steam inlet, the second condensation chamber, the second dividing wall type heat exchanger, the second bottom plate, the second weep hole, the second connecting water pipe the 342, the 3rd
Steam inlet, the 3rd condensation chamber, the 3rd dividing wall type heat exchanger, water inlet pipe 345, outlet pipe 325, low head 360, vacuum exhaust pipe
355 and condensate pipe 365.
The low-temperature return water of heating circulation water, by feed pump, enter condenser from bottom water inlet pipe 345, into upper and lower three
The 3rd dividing wall type heat exchanger bottom of the dividing wall type heat exchanger of individual series connection.In the 3rd dividing wall type heat exchanger, heating circulation
Water is by partition and steam heat-exchanging, and steam condensation heat release, the heat of steam improves circulating water temperature, and steam condensate passes through
Vertical steam channel trickles downwards in dividing wall type heat exchanger.After flowing through the 3rd dividing wall type heat exchanger, followed by preliminarily heated heating
Ring water, by the second connecting water pipe 342, the second dividing wall type heat exchanger is upwardly into, continues through partition and steam heat-exchanging.Flow through
Second dividing wall type heat exchanger, the heating circulation water being further heated, by the first connecting water pipe 340, it is upwardly into first
Dividing wall type heat exchanger, continue through partition and steam heat-exchanging.Finally, the heating circulation water being sufficiently heated, passes through outlet pipe
325 outflows, to heat user heat supply.
Steam caused by the first vaporization chamber evaporation of evaporator, together with working steam, by the first steam jet ejector, lead to
The first steam inlet 350 is crossed, it is vertical downwards to flow into the first dividing wall type heat exchanger 320 into after the first condensation chamber 305 of condenser
Upper and lower penetrating steam flow channel, by partition to heating circulation heat transfer water, condensed after steam heat release, along heat exchange wall downwards
Trickling, flows to the first bottom plate 330, by the first weep hole 335, flows downwardly into the steam side of the second dividing wall type heat exchanger.
The function of weep hole is：1, ensure that the condensate on top is all downward through, ponding thickness will not be exceeded；2, ensure
The upper and lower vapor space is not communicated with, will not pressure release.The shape and size of weep hole need to be designed appropriately.
Equally, steam caused by second, third vaporization chamber evaporation of evaporator, together with working steam, by second, the
Three steam jet ejectors, it is vertical downwards to flow into after second, third condensation chamber by second, third steam inlet of condenser
The upper and lower penetrating steam flow channel of second, third dividing wall type heat exchanger, by partition to heating circulation heat transfer water, after steam heat release
Condense, condensate trickles downwards along heat exchange wall.
Finally, condensate caused by the steam side condensation of whole three-level dividing wall type heat exchangers up and down, flows to low head together
Water storage room in 360, then discharged by condensate pipe 365 and condensate pump.
In the side wall of the upper space of water storage room in low head 360, vacuum exhaust pipe 355 is picked out.Vavuum pump passes through
Vacuum exhaust pipe 355 constantly extracts the on-condensible gas in condenser out, and main is exactly the on-condensible gas carried secretly in steam, and is
Leaked-in air in system, the vacuum in system is thereby may be ensured that, ensure evaporator flash temperature, ensure that condensation dividing wall type changes
Hot device efficient heat transfer.
Fig. 4 is the steam jet ejector structure chart of steam jet heat pump embodiment of the present invention.
The steam jet ejector of steam jet heat pump embodiment of the present invention, its structure include：Steam inlet pipe 210, nozzle
220th, room 225, diffuser pipe entrance 230, diffuser pipe throat 235 and diffuser pipe divergent segment 240 are sucked.
The high-pressure work steam come from steam boiler, by steam inlet pipe 210 and nozzle 220, formed in suction room 225 high
The supersonic speed steam stream of speed injection, make to form low-pressure area in suction room 225, the evaporated vapor in injection evaporator 100, which enters, to be inhaled
Enter the room 225, and after being mixed with working steam, further mix into diffuser pipe entrance 230, cut in the grade of diffuser pipe throat 235
During surface current is dynamic, it is changed into velocity of sound flowing steam stream, is reduced subsequently into the flow velocity of diffuser pipe divergent segment 240, pressure increase, reach one
Middle pressure, it is lower than working steam pressure, but higher than evaporator evaporation pressure, and then by steam pipeline 250, entrance is cold
Condenser 300.
Nozzle 220 is a contraction and enlargement nozzle, generally from the working steam pressure that steam boiler comes and steam in suction room 225
The ratio between the ratio between pressure, i.e., with the evaporating pressure in evaporator 100, more than critical pressure ratio, working steam deflation discharge nozzle 220
Afterwards, working steam flow velocity is changed into supersonic speed from subsonic speed, steam that more can effectively in injection evaporator, there is higher work effect
Rate.
Claims (3)
1. a kind of steam jet heat pump, its primary structure includes：Evaporator, condenser and steam jet ejector；Steam sprays
Device is flowed out by the use of high steam as working steam, injection low-pressure steam, the middle pressure steam of formation from injector；Middle low-temperature wastewater
Evaporation produces low-pressure steam in into evaporator, low-pressure steam in steam jet ejector by working steam injection, after the two mixing
Into condenser condensation heat, for heating recirculated water, described condenser, it is by above and below three dividing wall type heat exchangers
It is in series,
It is characterized in that：The condenser is vertical pressure vessel, and its structure includes：Upper cover, cylinder, the first steam enter
Mouth, the first condensation chamber, the first dividing wall type heat exchanger, the first bottom plate, the first weep hole, the first connecting water pipe, the second steam inlet,
Second condensation chamber, the second dividing wall type heat exchanger, the second bottom plate, the second weep hole, the second connecting water pipe, the 3rd steam inlet,
Three condensation chambers, the 3rd dividing wall type heat exchanger, water inlet pipe, outlet pipe, low head, vacuum exhaust pipe and condensate pipe；Heating circulation
Water backwater, enter condenser from bottom water inlet pipe, into the 3rd dividing wall type heat exchanger, by partition and steam heat-exchanging, steam coagulates
Trickling, heating circulation water by the second connecting water pipe, are upwardly into the second dividing wall type heat exchanger, continue through partition knot again downwards
With steam heat-exchanging, then by the first connecting water pipe, the first dividing wall type heat exchanger is upwardly into, by partition and steam heat-exchanging, most
Afterwards, the heating circulation water being heated by steam, is flowed out by outlet pipe；By the first steam inlet, into the first of condenser
The steam of condensation chamber, the vertical upper and lower penetrating steam flow channel for flowing into the first dividing wall type heat exchanger downwards, by partition to heating
Heat transfer water is circulated, is condensed after steam heat release, is trickled downwards along heat exchange wall, flow to the first bottom plate, by the first weep hole, to
Under flow to the steam side of the second dividing wall type heat exchanger；By second, third steam inlet, into second, third condensation of condenser
The steam of room, condensed by second, third dividing wall type heat exchanger to heating circulation heat transfer water, steam heat release；Whole steam condensations
Caused condensate, discharged by the condensate pipe of low head bottom；In the side wall of condenser bottom, vacuum suction is picked out
Pipe, extract the on-condensible gas in condenser out.
2. according to the steam jet heat pump described in claim 1, it is characterised in that：The evaporator is vertical pressure vessel,
It is that its structure includes by series above and below three vaporization chambers：Water inlet pipe, upper cover, cylinder, the first sieve plate, first are steamed
Send out room, the first steam (vapor) outlet, the second sieve plate, the second vaporization chamber, the second steam (vapor) outlet, the 3rd sieve plate, the 3rd vaporization chamber, the 3rd steaming
Vapor outlet, low head and drainpipe；Middle low-temperature wastewater enters evaporator by water inlet pipe, by the first sieve plate, into evaporator
First vaporization chamber, part evaporation produce steam, flowed out by the first steam (vapor) outlet；First vaporization chamber evaporates remaining waste water, enters
Second vaporization chamber, steam caused by the evaporation of the second vaporization chamber are flowed out by the second steam (vapor) outlet；The evaporation of second vaporization chamber is remaining useless
Water, into the 3rd vaporization chamber, steam caused by the evaporation of the 3rd vaporization chamber is flowed out by the 3rd steam (vapor) outlet；In 3rd vaporization chamber most
Remaining waste water eventually, flowed out from the drainpipe of bottom.
3. according to the steam jet heat pump described in claim 1, it is characterised in that：The steam jet ejector, its structure bag
Include：Steam inlet pipe, nozzle, suction room, diffuser pipe entrance, diffuser pipe throat and diffuser pipe divergent segment；The height come from steam boiler
Working steam is pressed, by steam inlet pipe and nozzle, nozzle is contraction and enlargement nozzle, in nozzle exit, forms the supersonic speed sprayed at a high speed
Steam stream, makes suction interior formation low-pressure area, and the evaporated vapor in injection evaporator enters suction room, and is mixed with working steam
Afterwards, further mixed into diffuser pipe entrance, in diffuser pipe throat, be changed into velocity of sound flowing steam stream, subsequently into diffuser pipe
Divergent segment, flow velocity reduce pressure increase, reach a middle pressure, and it is lower than working steam pressure, but than evaporator evaporation pressure
Power is high, then by steam pipeline, into condenser；The steam jet ejector shares three：First steam jet ejector connects
The first steam (vapor) outlet of evaporator and the first steam inlet of condenser are connect, second steam jet ejector connects the second of evaporator
Second steam inlet of steam (vapor) outlet and condenser, the 3rd steam jet ejector connect the 3rd steam (vapor) outlet and the condensation of evaporator
3rd steam inlet of device.
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| CN201410239530.1A CN105091408B (en) | 2014-05-23 | 2014-05-23 | Steam jet heat pump |
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| CN201410239530.1A CN105091408B (en) | 2014-05-23 | 2014-05-23 | Steam jet heat pump |
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| CN106839049A (en) * | 2015-12-05 | 2017-06-13 | 哈尔滨工大金涛科技股份有限公司 | The big temperature difference heat-exchange method of injecting type and the big temperature difference heat-exchanger rig of injecting type |
| CN105674615A (en) * | 2016-02-02 | 2016-06-15 | 娄山 | Absorption refrigerator capable of directly absorbing refrigerant vapor |
| CN106017121A (en) * | 2016-05-06 | 2016-10-12 | 淄博瑞能热电科技有限公司 | Gradient vacuum-evaporation low-temperature waste heat recovery system |
| 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 |
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| CN201787769U (en) * | 2010-03-26 | 2011-04-06 | 潍坊强源化工有限公司 | Compression and utilization device for waste heat of secondary steam |
| CN202579361U (en) * | 2012-06-07 | 2012-12-05 | 天津聚贤达科技有限公司 | Automatic control type steam jet heat pump |
| CN103184299B (en) * | 2012-07-26 | 2015-01-21 | 哈尔滨工大金涛科技股份有限公司 | Heat recovery method and heat recovery device for slag flushing water of iron and steel plant |
| CN103185369A (en) * | 2012-08-20 | 2013-07-03 | 哈尔滨工大金涛科技股份有限公司 | Directly heating machine |
| CN202869079U (en) * | 2012-08-25 | 2013-04-10 | 中能东讯新能源科技(大连)有限公司 | Condensate water heating device utilizing power plant circulating cooling water waste heat recovered by jet-type heat pump |
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2014
- 2014-05-23 CN CN201410239530.1A patent/CN105091408B/en active Active
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