CN106017121A - Gradient vacuum-evaporation low-temperature waste heat recovery system - Google Patents
Gradient vacuum-evaporation low-temperature waste heat recovery system Download PDFInfo
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- CN106017121A CN106017121A CN201610302031.1A CN201610302031A CN106017121A CN 106017121 A CN106017121 A CN 106017121A CN 201610302031 A CN201610302031 A CN 201610302031A CN 106017121 A CN106017121 A CN 106017121A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of low-temperature waste heat recovery and centralized heating, in particular to a gradient vacuum-evaporation low-temperature waste heat recovery system. The system comprises a slag flushing water reservoir, a slag water circulating pump, a gradient negative-pressure type evaporator, a gradient negative-pressure type condenser, an evaporator recovery water pump, a condensing water pump, a condenser hot well, a heating circulating water pump, a heating water return pipe, a vacuum pump and a vacuum gas collecting header, wherein the slag flushing water reservoir is connected with the slag water circulating pump which is sequentially connected with the gradient negative-pressure type evaporator, the gradient negative-pressure type condenser, the evaporator recovery water pump and the slag flushing water reservoir; the gradient negative-pressure type evaporator and the gradient negative-pressure type condenser are connected through a pipeline, and the bottom of the gradient negative-pressure type evaporator is provided with a bottom connecting pipeline connected with the gradient negative-pressure type condenser. The gradient vacuum-evaporation low-temperature waste heat recovery system has the beneficial effects that the problems of fouling, corrosion and blockage of a heat exchanger during original slag flushing water heat exchange recovery are solved, the problem that flushing slag of traditional slag flushing water is hard to remove is solved, and waste heat utilization of the slag flushing water is improved.
Description
Technical field
The present invention relates to low temperature exhaust heat reclaim and central heating technical field, relate in particular to a kind of step and bear
Pressure evaporation low temperature exhaust heat recovery system.
Background technology
The slag temperature that steel plant produce in blast furnace iron-making process is about 1000 DEG C, slag in dreg flushing tank by
The high-velocity flow chilling that slag flushing pump provides is washed into grain slag and is granulated.In iron-smelting process, the new water that flushing cinder consumes
Account for more than the 50% of washing slag water total burn-off.1 ton of slag of punching consumes about 11.2 tons of new water, cycling use of water amount
It is about about 10 tons.According to steel production in China yield 500,000,000 tons, calculate by 350 kilograms of slag ratioes, be only used for
The new water consumption of flushing cinder, just more than 1.5 hundred million tons, accounts for the 4% of the new water consumption of steel and iron industry.Taken away by washing slag water
The physics heat of blast furnace slag accounts for about the 8% of ironmaking energy consumption, is about as much as 21 kilograms of mark coals (by 350 kilograms
/ ton ferrum calculates).The water temperature range 60-85 degree of circulating water pool, hot water amount reaches the most a few kiloton, belongs to
Industrial low-temperature waste heat source, if be not used, this portion of energy will be wasted.Blast-furnace slag mainly becomes
Being divided into CaO, SiO, MgO, A1203 and a small amount of FeO, pH value is more than 7, shows slightly alkalescence.Because of washing slag water
Containing substantial amounts of impurity, when carrying out heat recovery, easily cause blocking fouling and the corruption of various heat transmission equipment
Erosion.At present, the heat recovery of blast furnace slag quenching water how is realized, it has also become steel industry implements energy-conservation subtracting
The important topic of row.
Summary of the invention
The deficiencies in the prior art in view of the above, it is an object of the invention to provide a kind of step true
Empty evaporation low temperature exhaust heat recovery system.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of step negative pressure evaporation low temperature
Residual neat recovering system, including washing slag water cistern, pulp water circulating pump, step negative-pressure type vaporizer, step is born
Pressure type condenser, vaporizer recovered water pump, condensate pump, Condenser's Hot Well, heating circulation pump, adopt
Warm return pipe, vacuum pump, vacuum gas collection header, described washing slag water cistern is connected with pulp water circulating pump, institute
Stating pulp water circulating pump to be connected with step negative-pressure type vaporizer, described step negative-pressure type vaporizer reclaims with vaporizer
Water pump, described vaporizer recovered water pump is connected with washing slag water cistern, described step negative-pressure type vaporizer and ladder
Level negative-pressure type condenser is connected by pipeline, and described step negative-pressure type base of evaporator is provided with and step negative-pressure type
The bottom that condenser connects connects pipeline, and described bottom connects pipeline and is provided with condensate pump and condenser hot water
Well, the bottom of described step negative-pressure type condenser is provided with heating return pipe, and described heating return pipe is provided with to be adopted
Warm water circulating pump, described vacuum gas collection header is connected with step negative-pressure type condenser.
Preferably, described step negative-pressure type vaporizer is connected with step negative-pressure type condenser by four pipelines.
Preferably, described step negative-pressure type vaporizer includes vaporizer body, vaporizer water inlet, vaporizer
Outlet, multistage evaporation room, every one-level vaporization chamber of described multistage evaporation room is equipped with water-locator, water-level gauge
And steam (vapor) outlet, described vaporizer water inlet is arranged on vaporizer body top, and described vaporizer outlet sets
Put in vaporizer body bottom.
Preferably, described multistage evaporation room is set to two grades to level Four, respectively first order vaporization chamber, the second level
Vaporization chamber, third level vaporization chamber, it is correspondingly arranged the in fourth stage vaporization chamber, and every one-level vaporization chamber respectively
One-level water-locator, second level water-locator, third level water-locator, fourth stage water-locator and first order water-level gauge,
Second level water-level gauge, third level water-level gauge, fourth stage water-level gauge and first order steam (vapor) outlet, second level steam
Outlet, third level steam (vapor) outlet, fourth stage steam (vapor) outlet.
Preferably, described step negative-pressure type vaporizer also includes that multi-cascade is threaded a pipe, and described multi-cascade is threaded a pipe
Connection corresponding with the steam (vapor) outlet of described multi-stage evaporator.
Preferably, described water-locator includes that shower nozzle and water distributing plate, described shower nozzle are provided with multiple, described water distributing plate
Being provided with multiple circular hole, circular hole quantity is successively decreased step by step along with water distributing plate progression.
Preferably, described step negative-pressure type condenser includes condenser main body, and multistage condensing room, on condenser
Hydroecium manhole door, condenser lower header man-hole opening, condenser water inlet, condenser outlet, heat exchanger tube,
Described condenser upper tank manhole door is arranged on condenser body top, and described condenser lower header manhole door sets
Putting in condenser bottom part body, described condenser water inlet and condenser outlet are arranged at condenser main body
Bottom, every one-level condensing room of described multistage condensing room is designed with steam inlet, condenses water out and evacuates gas
Mouthful, described condensation water out is connected with Condenser's Hot Well.
Preferably, described step condensing room is provided with two altogether and is respectively first order condensing room to level Four, and the second level is coagulated
Steam chest, third level condensing room, fourth stage condensing room, described vacuum gas collection header and step negative-pressure type condenser
The evacuation QI KOU of every one-level condensing room all connected by pipeline, and corresponding on pipeline be provided with the first order
Negative pressure regulating valve, second level negative pressure regulating valve, third level negative pressure regulating valve, fourth stage negative pressure regulating valve.
Preferably, described step negative-pressure type condenser also includes that multi-cascade is threaded a pipe, and described multi-cascade is threaded a pipe
It is connected with the steam inlet of described multistage condensing room.
Preferably, described heat exchanger tube is provided with many, and each heat exchanger tube all each from multistage condensing room
Level condensing indoor pass.
The invention has the beneficial effects as follows: the present invention utilizes negative pressure low-temperature evaporation principle, by the way of evacuation
Just washing slag water can be evaporated without thermal source, and steam is carried out heat recovery, it is to avoid flushing cinder
Corrosion and scaling a large amount of impurity blocking vaporizer and the problem of heating network in water, solve usual heat exchanger blocking,
The technical barriers such as corrosion and scaling, the present invention develops step negative-pressure type vaporizer and step negative-pressure type coagulates
The multistage multiple pressure design of vapour device realizes heat and reclaims the waste heat that more fully make use of washing slag water step by step, and
Complete the recycling of washing slag water.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the step negative-pressure type evaporation structure schematic diagram of the present invention；
Fig. 3 is the A-A view in Fig. 2 of the present invention；
Fig. 4 is the structural representation of the water-locator of the present invention；
Fig. 5 is step negative-pressure type condenser structural representation of the present invention.
In figure:
1-washing slag water cistern；2-pulp water circulating pump；3-step negative-pressure type vaporizer；4-step negative-pressure type condensing
Device；5-vaporizer recovered water pump；6-condensate pump；7-Condenser's Hot Well；8-heating circulation pump；9-heating
Return pipe；10-vacuum pump；11-vacuum gas collection header；12-vaporizer body；13-vaporizer water inlet；14-steams
Send out device outlet；15-multistage evaporation room；16-first order vaporization chamber；17-second level vaporization chamber；The 18-third level is steamed
Send out room；19-fourth stage vaporization chamber；20-first order water-locator；21-second level water-locator；22-third level water distribution
Device；23-fourth stage water-locator；24-first order water-level gauge；25-second level water-level gauge；26-third level water level
Meter；27-fourth stage water-level gauge；28-first order steam (vapor) outlet；29-the second steam (vapor) outlet；30-third level steam goes out
Mouthful；31-fourth stage steam (vapor) outlet；32-shower nozzle；33-water distributing plate；34-condenser main body；35-condenser upper tank
Manhole door；36-condenser lower header manhole door；37-condenser water inlet；38-condenser outlet；39-heat exchange
Pipe；40-first order condensing room；Condensing room, the 41-second level；42-third level condensing room；43-fourth stage condensing
Room；44-first order negative pressure regulating valve；45-second level negative pressure regulating valve；46-third level negative pressure regulating valve；47-
Level Four negative pressure regulating valve.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the detailed description of the invention of the present invention is described in further detail:
As it is shown in figure 1, a kind of step vacuum evaporation low temperature exhaust heat recovery system, including washing slag water cistern 1,
Pulp water circulating pump 2, step negative-pressure type vaporizer 3, step negative-pressure type condenser 4, vaporizer recovered water pump 5,
Condensate pump 6, Condenser's Hot Well 7, heating circulation pump 8, heating return pipe 9, vacuum pump 10, very
Empty set gas header 11, described washing slag water cistern 1 is connected with pulp water circulating pump 2, described pulp water circulating pump 2
Being connected with step negative-pressure type vaporizer 3, described step negative-pressure type vaporizer 3 is with vaporizer recovered water pump 5 even
Connecing, described vaporizer recovered water pump 5 is connected with washing slag water cistern 1, described step negative-pressure type vaporizer 3
It is connected by pipeline with step negative-pressure type condenser 4, is provided with bottom described step negative-pressure type vaporizer 3 with many
The bottom that ladder negative-pressure type condenser 4 connects connects pipeline, and described bottom connects pipeline and is provided with condensate pump 6
With Condenser's Hot Well 7, the bottom of described step negative-pressure type condenser 4 is provided with heating return pipe 9, described in adopt
Warm return pipe 9 is provided with heating circulation pump 8, described vacuum gas collection header 11 and step negative-pressure type condenser
4 connect.
As in figure 2 it is shown, described step negative-pressure type vaporizer 3 is by four pipelines and step negative-pressure type condenser 4
Connecting, described step negative-pressure type vaporizer 3 includes vaporizer body 12, vaporizer water inlet 13, vaporizer
Outlet 14, multistage evaporation room 15, every one-level vaporization chamber of described multistage evaporation room 15 is equipped with water-locator,
Water-level gauge and steam (vapor) outlet, described vaporizer water inlet 13 is arranged on vaporizer body top, described vaporizer
Outlet 14 is arranged on vaporizer body 12 bottom.
Described multistage evaporation room is set to level Four, respectively first order vaporization chamber 16, second level vaporization chamber 17, the
Three grades of vaporization chambers 18, are correspondingly arranged first order cloth in fourth stage vaporization chamber 19, and every one-level vaporization chamber respectively
Hydrophone 20, second level water-locator 21, third level water-locator 22, fourth stage water-locator 23 and first order water level
Meter 24, second level water-level gauge 25, third level water-level gauge 26, fourth stage water-level gauge 27 and first order steam go out
Mouth 28, second level steam (vapor) outlet 29, third level steam (vapor) outlet 30, fourth stage steam (vapor) outlet 31.
Described step negative-pressure type vaporizer 3 also includes that multi-cascade is threaded a pipe, and described multi-cascade is threaded a pipe with described
The steam (vapor) outlet correspondence of multistage evaporation room connects.
As shown in Figure 3,4, described water-locator includes shower nozzle 32 and water distributing plate 33, and described shower nozzle 32 is provided with many
Individual, described water distributing plate 33 be provided with on multiple circular hole, and water distributing plate 33 circular hole quantity along with vaporization chamber by
Level is successively decreased.
As it is shown in figure 5, described step negative-pressure type condenser 4 includes condenser main body 34, multistage condensing room,
Condenser upper tank manhole door 35, condenser lower header manhole door 36, condenser water inlet 37, condenser goes out
The mouth of a river 38, heat exchanger tube 39, described condenser upper tank manhole door 35 is arranged on condenser main body 34 top,
Described condenser lower header manhole door 36 is arranged on bottom condenser main body 34, described condenser water inlet 37
Being arranged at condenser main body 34 bottom with condenser outlet 38, every one-level of described multistage condensing room is coagulated
Steam chest is designed with steam inlet, condenses water out and evacuates QI KOU, described condensation water out and condenser hot water
Well connects.
Described step condensing room is provided with level Four altogether and is respectively first order condensing room 40, condensing room, the second level 41, and
Three grades of condensing rooms 42, fourth stage condensing room 43, described vacuum gas collection header 11 and step negative-pressure type condenser 4
The evacuation QI KOU of every one-level condensing room all connected by pipeline, and corresponding on pipeline be provided with the first order
Negative pressure regulating valve 44, second level negative pressure regulating valve 45, third level negative pressure regulating valve 46, fourth stage negative pressure regulates
Valve 47.
The evacuation QI KOU of each condensing room, is pumped into vacuum through vacuum pump 10 and negative pressure regulating valve effect by air
Gas collection header 11, the air being pooled in vacuum gas collection header 11 is extracted out and is drained into air, often by vacuum pump 10
Individual negative pressure regulating valve scalable corresponding condensing room and the vacuum values of vaporization chamber so that the steaming in vaporization chambers at different levels
Sending out temperature and pressure corresponding, the negative pressure value of each condensing room is incremented by the most step by step, and heat-exchange temperature is from upper
Successively decrease step by step under and.Each condensing room is provided with condensation water outlet, every condensing water conduit sets
Being equipped with water seal, its effect is to ensure that condensation water is normally discharged and air can not be allowed to enter condensing rooms at different levels and causes very
Empty destruction, the condensation water of each condensing room respectively enters Condenser's Hot Well 7 and is driven into through condensate pump 6
The entrance of vaporizer recovered water pump 5 recycles.
Described step negative-pressure type condenser 4 also includes that multi-cascade is threaded a pipe, and described multi-cascade is threaded a pipe with described
The steam inlet of multistage condensing room connects.
Described heat exchanger tube is provided with many, and each heat exchanger tube is all from every one-level condensing room of multistage condensing room
Inside pass.
Each condensing room is independent closed chamber, and, in an entire body shell, all there is centre each condensing room
Tube sheet separates mutually, is equipped with sealing member and seals between heat exchanger tube and tubesheet holes, it is achieved independent closed chamber
Room.
The negative pressure value of each condensing room presses sequence arrangement successively, carries out respectively under step pressure and temperature
Condensation heat transfer.
During work, pulp water circulating pump 2 is delivered to step negative pressure after the hot water supercharging in washing slag water cistern 1
The vaporizer water inlet 13 of formula vaporizer 3, pulp water enters the first order vaporization chamber of step negative-pressure type vaporizer 3
16, washing slag water is sprayed by the shower nozzle 32 of the water-locator in this vaporization chamber, makes washing slag water uniformly refine, and increases
The surface area of big evaporation improves steam production, and the vacuum values of this grade of vaporization chamber is about-64.5KPa, corresponding
Evaporating temperature is about 73 DEG C, and low temperature pulp water evaporates under this vacuum state and becomes steam, and the steam of generation leads to
Cross the first steam (vapor) outlet 28 to enter into the first unicom pipeline and enter back into the first order of step negative-pressure type condenser 4
Condensing room 40 carries out heat exchange with the water in heat exchanger tube, and then is reclaimed by the heat in washing slag water；Pass through
Pulp water after first order vaporization chamber 16 evaporation falls to the again after the water distribution orifice plate of second level vaporization chamber 17
Dual evaporation room 17, the vacuum values in second level vaporization chamber 17 is about-67.3KPa, and it corresponds to
Evaporating temperature is about 71 DEG C, and the steam that evaporation produces enters the second level of step negative-pressure type condenser 4 correspondence
Condensing room 41 carries out heat exchange with the water in heat exchanger tube；Pulp water after second level vaporization chamber 17 evaporates is again
Third level vaporization chamber 18 is fallen to, at third level vaporization chamber after the water distribution orifice plate of third level vaporization chamber 18
Vacuum values in 18 is about-69.7KPa, and its evaporating temperature corresponded to is about 69.3 DEG C, and evaporation produces
Steam enter the third level condensing room 42 of step negative-pressure type condenser 4 correspondence and carry out heat with the water in heat exchanger tube
Exchange；Pulp water after third level vaporization chamber 18 evaporates is again through the water distribution orifice plate of fourth stage vaporization chamber 19
After fall to fourth stage vaporization chamber 19, the vacuum values in fourth stage vaporization chamber 19 is about-72.2KPa,
Its evaporating temperature corresponded to is about 67.3 DEG C, and the steam that evaporation produces enters step negative-pressure type condenser 4
Corresponding fourth stage condensing room 43 carries out heat exchange with the water in heat exchanger tube.So washing slag water is at every grade of vaporization chamber
Vaporize step by step, then carry out heat exchange to step negative-pressure type condenser 4, heat is recycled step by step, finally
Remain washing slag water under the effect of vaporizer recovered water pump 5 by the vaporizer water outlet of step negative-pressure type vaporizer 4
Mouth flows out to washing slag water cistern 1, carries out this circulation flushing cinder again.
Heating circulation water is entered into ladder through heating circulation pump 8 by condenser water inlet 37 by heating return pipe 9
Level negative-pressure type condenser 4, through heat exchanger tube respectively with fourth stage condensing room 43, third level condensing room 42, second
Level condensing room 41, the steam of first order condensing room 40 carries out heat exchange, and temperature raises and reaches heating temperature requirement
After flowed out by condenser outlet 38, and then be delivered to the heat supply network female pipe of heating and heat.
In the present invention washing slag water entered the most smoothly by upper level vaporization chamber next stage vaporization chamber and the flushing cinder water yield by
Level reduces, and the vacuum values in each vaporization chamber increases the most step by step, and corresponding evaporating temperature reduces step by step；
The latent heat of vaporization under different pressures or vacuum values correspondence is extracted, it is achieved step evaporation is extracted in every grade of vaporization chamber
Heat, waste heat recovery volume is big, quality better.Step negative-pressure type condenser 4 is the design of multistage multiple pressure, Ge Jining
Steam chest is separated by inter-stage tube sheet, is formed and closes independent space, and two ends tube sheet and heat exchanger tube carry out account and connect or weld
Connecing, sagging plate is connected with heat exchanger tube by sealing ring, and heat exchanger tube connects with each condensing room.
Embodiment has been done waste heat recovery Economic and Efficiency Analysis, washing slag water flow 1200t/h, vaporizer by the present invention
Inlet temperature 77 DEG C, outlet temperature 63 DEG C, waste heat recovery volume Q=1200 × 1000 × 4.1868 × (77-67)
=50241600Kj/h.
Mark coal calorific value is q=29308kj/kg.Save mark coal W=Q/q=50241600/29308=1714kg/h,
One Heating Season saving mark coal is W1=120 days × 24 × 1714=1234268kg=4937t.Comprehensively it is available for heating
Area F=Q/q=50241600/45 × 3.6=31 ten thousand.
Claims (10)
1. a step vacuum evaporation low temperature exhaust heat recovery system, including washing slag water cistern, pulp water circulating pump,
Step negative-pressure type vaporizer, step negative-pressure type condenser, vaporizer recovered water pump, condensate pump, condenser
Hot well, heating circulation pump, heating return pipe, vacuum pump, vacuum gas collection header, described washing slag water stores
Pond is connected with pulp water circulating pump, and described pulp water circulating pump is connected with multi-stage negative pressure formula vaporizer, described step
Negative-pressure type vaporizer is connected with vaporizer recovered water pump, and described vaporizer recovered water pump is with washing slag water cistern even
Connecing, described step negative-pressure type vaporizer is connected by pipeline with step negative-pressure type condenser, described step negative pressure
Formula base of evaporator is provided with the bottom being connected with step negative-pressure type condenser and connects pipeline, described bottom connecting tube
Road is provided with condensate pump and Condenser's Hot Well, and the bottom of described step negative-pressure type condenser is provided with heating and returns
Water pipe, described heating return pipe is provided with heating circulation pump, described vacuum gas collection header and step negative-pressure type
Condenser connects.
Step the most according to claim 1 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described step negative-pressure type vaporizer is connected with step negative-pressure type condenser by four pipelines.
Step the most according to claim 1 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described step negative-pressure type vaporizer includes vaporizer body, vaporizer water inlet, vaporizer outlet, step
Vaporization chamber, every one-level vaporization chamber of described step vaporization chamber is equipped with water-locator, water-level gauge and steam (vapor) outlet,
Described vaporizer water inlet is arranged on vaporizer body top, and described vaporizer outlet is arranged on vaporizer master
Body bottom.
Step the most according to claim 3 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described step vaporization chamber is set to level Four, respectively first order vaporization chamber, second level vaporization chamber, and the third level is evaporated
Room, is correspondingly arranged first order water-locator, the second level in fourth stage vaporization chamber, and every one-level vaporization chamber respectively
Water-locator, third level water-locator, fourth stage water-locator and first order water-level gauge, second level water-level gauge, the 3rd
Level water-level gauge, fourth stage water-level gauge and the first steam (vapor) outlet, second level steam (vapor) outlet, third level steam (vapor) outlet,
Fourth stage steam (vapor) outlet.
Step the most according to claim 3 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described step negative-pressure type vaporizer also includes that multi-cascade is threaded a pipe, and described multi-cascade is threaded a pipe and described step steams
The steam (vapor) outlet correspondence sending out room connects.
Step the most according to claim 3 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described water-locator includes that shower nozzle and water distributing plate, described shower nozzle are provided with multiple, and described water distributing plate is provided with multiple circle
Hole.
Step the most according to claim 1 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described step negative-pressure type condenser includes condenser main body, multistage condensing room, condenser upper tank manhole door,
Condenser lower header manhole door, condenser water inlet, condenser outlet, heat exchanger tube, on described condenser
Hydroecium manhole door is arranged on condenser body top, and described condenser lower header manhole door is arranged on condenser master
Bottom body, described condenser water inlet and condenser outlet are arranged at condenser lower body part, described many
Every one-level condensing room of level condensing room is designed with steam inlet, condenses water out and evacuates QI KOU, described condensation
Water out is connected with Condenser's Hot Well.
Step the most according to claim 7 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described multistage condensing room is provided with level Four altogether and is respectively first order condensing room, condensing room, the second level, third level condensing
Every one-level condensing room of room, fourth stage condensing room, described vacuum gas collection header and multi-stage negative pressure formula condenser
Evacuate QI KOU all to connect by pipeline, and on pipeline correspondence be provided with first order negative pressure regulating valve, second
Level negative pressure regulating valve, third level negative pressure regulating valve, fourth stage negative pressure regulating valve.
Level ladder the most according to claim 7 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described step negative-pressure type condenser also includes that multi-cascade is threaded a pipe, and described multi-cascade is threaded a pipe multistage solidifying with described
The steam inlet of steam chest connects.
Step the most according to claim 7 vacuum evaporation low temperature exhaust heat recovery system, it is characterised in that:
Described heat exchanger tube is provided with many, and each heat exchanger tube is all worn from every one-level condensing indoor of multistage condensing room
Cross.
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| CN201610302031.1A CN106017121A (en) | 2016-05-06 | 2016-05-06 | Gradient vacuum-evaporation low-temperature waste heat recovery system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662802A (en) * | 2017-03-27 | 2018-10-16 | 吴巧魁 | Green heat pump refrigerating heating system, refrigerating and heating method and air-conditioning |
| CN108926856A (en) * | 2018-08-14 | 2018-12-04 | 青岛大学 | A kind of continous way feed liquor multiple-effect vacuum inspissator based on heat pump |
| CN111892109A (en) * | 2020-08-04 | 2020-11-06 | 徐宝臣 | Low-temperature multi-effect evaporation crystallization equipment |
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| CN108926856A (en) * | 2018-08-14 | 2018-12-04 | 青岛大学 | A kind of continous way feed liquor multiple-effect vacuum inspissator based on heat pump |
| CN111892109A (en) * | 2020-08-04 | 2020-11-06 | 徐宝臣 | Low-temperature multi-effect evaporation crystallization equipment |
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