CN106621418A

CN106621418A - Condensed steam source heat pump driving multiple-effect distillation solution crystallization purification process

Info

Publication number: CN106621418A
Application number: CN201611093147.5A
Authority: CN
Inventors: 侴乔力; 陈江; 侴雨宏; 魏蔚
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-11-27
Filing date: 2016-11-27
Publication date: 2017-05-10

Abstract

The invention relates to a condensed steam source heat pump driving multiple-effect distillation solution crystallization purification process. A condensed steam source heat pump is used; the condensed steam latent heat of a tail-effect evaporator is recovered; the condensate water sensible heat, the oil cooling sensible heat, the sleeve cylinder sensible heat and the supercooling sensible heat are recovered in a step way; a condensed steam source heat pump and a water vapor compressor are used for jointly preparing heating water vapor, so that the independent driving multiple-effect distillation solution crystallization purification process is realized. High-temperature brine produced by multiple-effect distillation is subjected to solid-liquid separation by a spiral sedimentation centrifuge to generate crystal salt and brine; the produced crystal salt is conveyed to a collecting pool by a conveying belt for use; the generated brine and supplementing seawater are mixed; then, the mixture is conveyed back to the multiple-effect distillation process for cyclic treatment.

Description

Condensing source heat pump drives multi-effect distilling solution purging by crystallization technique

(1) technical field

The present invention relates to the crystallization and purification of a kind of solution, the desalination of seawater and product salt, the process recycling of sewage and thing In material resource reclaim, that is, recycling economy during zero-emission, the condensing source heat pump to be used drives multi-effect distilling solution knot Brilliant purification technique.

(2) background technology

Multi-effect distilling solution purging by crystallization technique：By multigroup evaporimeter D_nAnd its preheater E_n, many technique tie point strings of Jing Connection connection, constitutes multi-effect distilling solution purging by crystallization technique, only need to be to first evaporator D₁And its preheater E₁Input plus hot water steam Vapour, and reclaim solidifying water 22；Each effect from that point on, this effect evaporimeter D_n-1It is middle to spray the supplementary seawater of preheating or spray During circulating brine, imitate water recovery latent heat before reclaiming and distill out this effect indirect steam, and introduce aftereffect evaporimeter D_nAnd its Preheater E_n, to reclaim its latent heat of condensation while fresh water is condensed into, using the steaming as aftereffect circulated sprinkling salt solution 23 Thermal source is evaporated, and aftereffect supplements the preheating thermal source of seawater；Front effect evaporimeter D_n-1And its preheater E_n-1The He of solidifying water 22 of middle generation Circulated sprinkling salt solution 23, then using the pressure differential imitated in front and back, introduce respectively aftereffect evaporimeter E_nCorresponding technique tie point ... So repeat, produced indirect steam step pressure reducing, cooling, and repeat to reclaim the latent heat of condensation, until last evaporator D_nThe indirect steam for being distilled out, because its temperature is reduced cannot as distillation thermal source, then be introduced into condenser condense into it is light Water, its latent heat of condensation then discharges environment by refrigerated sea water.

In above-mentioned technique：

(1) seawater reclaims high temperature discharge fresh water heat and heats up after being preheated, and to reduce distillation heat is driven, subsequently into Multi-effect distilling process is carried out in technique；

(2) the high temperature fresh water of multi-effect distilling production is driven by fresh water pump, and is collected after heat release, cooling in preheater, treated With；

(3) the high temperature salt solution of multi-effect distilling production, then the separation of solid and liquid of Jing screw settling centrifuges, and produce crystal salt and Salt solution；It is stand-by that the crystal salt for being produced delivers to collecting pit by conveyer belt；

(4) salt solution for being produced send circular treatment in multi-effect distilling technique back to again after sea water mixing with supplementing, to realize following Zero-emission in ring economy.

Lowered the temperature step by step by multiple-effect distillation, condensation, the process of preheating, can obtain and be multiple times than the solidifying of heating steam flow Water 22.Due to heating, distillation, enrichment, the saturation history of salt solution, carried out simultaneously, together in evaporator heat exchange pipe surface, therefore Necessarily cause solute precipitation, accumulation, fouling in heat exchange pipe surface, so that plant running extremely unstable, reliability and safety Property is poor.

The advantage of multi-effect distilling solution purging by crystallization technique is that the solidifying water of production reaches standard for drinking, but many shortcomings are also made About its development：

(1) technical process must supplement indirect steam latent heat of condensation loss in condenser, and additional heat is converted into plus hot water steams Vapour amount 55-350kg/t, so water vapour needed for need to being provided by boiler, so as to limit the utilization efficiency of heat energy of device；

(2) heat exchanger tube surface scale is serious, and anti-scaling measures, and Jing need to be taken often to clean；

(3) power consumption makes water cost up to $20～30/t up to 7～15kW*h/t.

(3) content of the invention

The present invention seeks to：System integration condensing source heat pump and multi-effect distilling solution purging by crystallization technique, are heat pump industries With the product transboundary of solution purging by crystallization industry；Last evaporator is not only reclaimed using condensing source heat pump distill out the latent of condensing Heat, and step reclaims solidifying water sensible heat, oil cooling sensible heat, set cylinder sensible heat, supercooling sensible heat；Compressed using condensing source heat pump and water vapour Machine, produces heating steam jointly, to realize independent driving multi-effect distilling solution purging by crystallization technique；The height of multi-effect distilling production Warm saline, then the separation of solid and liquid of Jing screw settling centrifuges, and produce crystal salt and salt solution；The crystal salt for being produced is by conveyer belt Deliver to collecting pit stand-by；The salt solution for being produced send circular treatment in multi-effect distilling technique back to again after sea water mixing with supplementing, with reality Zero-emission in existing recycling economy.

Multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump shown in accompanying drawing 1, it is by siphon in 1- pipes Circulation adverse current takes hot climbing film evaporator；1-1- condensing imports；1-2- disengagement chambers；1-3- annulus is distributed vertical siphon heat removing tube cluster； 1-4- branch chambers；1-5- coagulates water out；1-6- liquid heat pump fluid imports；1-7- gaseous states heat pump fluid is exported；1-8- inlet ports； 1-9- injectors；1-10- two-way valves；1-11- fixed gas separators；1-12- cylindrical space siphon decline passways；1-13- coagulates water Pump；The solidifying water regenerators of 1-14-；1-15- coagulates water inlet；2- condensings；3- liquid-level switches；4- expansion valves；4-1- devices for drying and filtering；5- Compressor；5-1- oil return openings；5-2- driving equipments；5-3- covers cylinder regenerator；5-4- oil eliminators；5-5- oil strainers；5-6- Flow switch；5-7- magnetic valves；5-8- oil coolers；5-9- manual ball valves；5-10- subcoolers；Siphon circulation adverse current in 6- pipes Take heat and rise film steam boiler condenser；6-1- softens moisturizing import；6-2- disengagement chambers；6-3- annulus is distributed vertical siphon heat outting pipe Cluster；6-4- branch chambers；6-5- steam outlets；6-6- gaseous state heat pump fluid imports；6-7- liquid heat pump fluid is exported；6-8- goes out Gas port；6-9- cylindrical space siphon decline passways；7- heat pump fluids；8- softens moisturizing；9- softens refill flow regulating valve；10- Water vapour compressor；11- high-pressure water vapors；12- pressure switches；13- temperature switches；14- vavuum pumps；15- evaporimeters；15-1- Steam pipe；15-2- coagulates water pipe；15-3- fluid reservoirs；15-4- liquid outlets；15-5- liquid distributors；15-6- air intakes；15-6-1- is pre- Hot air intake；15-7- water inlets；15-8- delivery ports；15-9- demisters；15-10- ventholes；15-11- inlets；16- is pre- Hot device；17- seawater make-up pumps；18- circulated sprinkling pumps；19- flow control valves；20- brine pumps；21- seawater；22- coagulates water；23- Salt solution；24- low pressure water vapors；25- heating steams；26- flow control valves；27- screw settling centrifuges；28- crystal salt groups Into, it is characterised in that：

Siphon circulation adverse current is taken the tube side of hot climbing film evaporator 1 top gaseous state heat pump fluid outlet 1-7 and is connected by pipeline in pipe Connect siphon circulation adverse current in compressor 5, oil eliminator 5-4, pipe and take the shell side of heat liter film steam boiler condenser 6, device for drying and filtering 4-1, subcooler 5-10 cross siphon circulation adverse current in cold side, expansion valve 4, pipe and take the tube side bottom liquid heat pump of hot climbing film evaporator 1 Working medium import 1-6, composition heat pump cycle loop；

Oil eliminator 5-4 bottom oil-outs connect manual ball valve 5-9, oil cooler 5-8 lubricating oil side, oily mistake by pipeline Filter 5-5, flow switch 5-6, magnetic valve 5-7, manual ball valve 5-9, the oil return opening of compressor 5, composition oil cooling backheat loop；

Siphon circulation adverse current takes the top condensing import 1-1 of the shell side of hot climbing film evaporator 1, the distribution of middle part annulus vertically in pipe Siphon heat removing tube cluster 1-3 outsides, the solidifying water out 1-5 in bottom, fixed gas separator 1-11, condensate pump 1-13, solidifying water regenerator 1- 14 solidifying water sides, the solidifying backheat loop of water 22 of composition condensing 2 heat release；

Siphon circulation adverse current takes bottom liquid heat pump fluid import 1-6, the bottom tapping of the tube side of hot climbing film evaporator 1 in pipe Chamber 1-4, middle part annulus are distributed vertical siphon heat removing tube cluster 1-3 inner sides, top disengagement chamber 1-2, top gaseous state heat pump fluid outlet 1-7, constitutes siphon circulation adverse current in the pipe of heat pump fluid and takes hot climbing-film evaporation loop, and wherein annulus is distributed vertical siphon heat removing tube Cluster 1-3 is annulus distribution, vertically disposed tube bundle, and central authorities arrange a cylindrical space siphon decline passway 1-12, and in tube bundle Multiple cylindrical spaces of wall are set to siphon rising passway, the circulation area substantially phase of siphon decline passway and siphon rising passway Deng；

The shell that siphon circulation adverse current takes hot climbing film evaporator 1 in pipe is the vertically disposed face of cylinder；

Siphon circulation adverse current takes the tube side upper inside wall of hot climbing film evaporator 1 and arranges liquid-level switch 3 in pipe, according to heat pump fluid The aperture of liquid level signal closed-loop control expansion valve 4, and the outlet of expansion valve 4 takes heat by siphon circulation adverse current in connecting pipe of pipeline The tube side bottom liquid heat pump fluid import 1-6 of climbing film evaporator 1, constitutes heat pump fluid expansion circuit；

In pipe siphon circulation adverse current take heat rise the shell side of film steam boiler condenser 6 top gaseous state heat pump fluid import 6-6, Middle part annulus is distributed vertical siphon heat release tube bundle 6-3 outsides, bottom liquid heat pump fluid outlet 6-7, constitutes the inverse of heat pump fluid Banish hot loop；

The interior siphon circulation adverse current of pipe takes the bottom of the tube side of heat liter film steam boiler condenser 6 and softens moisturizing import 6-1, bottom Branch chamber 6-4, middle part annulus are distributed vertical siphon heat release tube bundle 6-3 inner sides, top disengagement chamber 6-2, top steam outlet 6- 5, composition softens siphon circulation adverse current in the pipe of moisturizing and takes hot climbing-film evaporation loop, and wherein annulus is distributed vertical siphon heat release tube bundle 6-3 is distributed for annulus, vertically disposed tube bundle, one cylindrical space siphon decline passway 6-9 of central authorities' setting, and tube bundle inwall Multiple cylindrical spaces are set to siphon rising passway, and siphon decline passway is roughly equal with the circulation area of siphon rising passway；

The shell that siphon circulation adverse current takes heat liter film steam boiler condenser 6 in pipe is the vertically disposed face of cylinder；

Siphon circulation adverse current takes the tube side upper inside wall of heat liter film steam boiler condenser 6 and arranges liquid-level switch 3, foundation in pipe The water level signal closed-loop control for softening moisturizing 8 softens the aperture of refill flow regulating valve 9, and softens refill flow regulating valve 9 Outlet takes the tube side bottom of heat liter film steam boiler condenser 6 and softens moisturizing import 6- by siphon circulation adverse current in connecting pipe of pipeline 1, with after softening moisturizing 8, composition softens refill flow regulating loop；

The interior siphon circulation adverse current of pipe takes heat and rises the tube side top steam outlet 6-5 of film steam boiler condenser 6 by pipeline Connection water vapour compressor 10, constitutes water vapour compression circuit；

Siphon circulation adverse current takes the tube side top disengagement chamber 6-2 inwalls of heat liter film steam boiler condenser 6 and arranges pressure in pipe Switch 12 and temperature switch 13 each；

Siphon circulation adverse current takes the solidifying water out 1- in the shell side bottom of hot climbing film evaporator 1 in the air inlet connecting tube of vavuum pump 14 The 5 fixed gas separator 1-11 gas outlets for being connected, composition fixed gas discharges loop；

Soften moisturizing 8 to soften by the solidifying water regenerator 1-14 softened waters side of pipeline connection, diversion three-way, oil cooler 5-8 Water side, set cylinder regenerator 5-3 softened waters side, subcooler 5-10 softened waters side, threeway of confluxing, soften refill flow regulating valve 9 Import, composition softens moisturizing step backheat preheating circuit；

Soften moisturizing 8 and diversion three-way, flow control valve 19, threeway of confluxing are connected by pipeline, composition softens refill flow Regulating loop；

The shell side for often imitating evaporimeter 15 and its preheater 16 is mutual by upper steam pipe 15-1 water pipe 15-2s solidifying with bottom Connection, composition condenses backheat loop；

The liquid outlet 15-4 of the tube side bottom fluid reservoir 15-3 of evaporimeter 15 is often imitated, by pipeline connection point liquid threeway, circulation Spray pump 18, the tube side of evaporimeter 15 top liquid distributor 15-5, composition brine recycling spray loop；

Often imitate the shell side bottom of evaporimeter 15 and air intake 15-6, water inlet 15-7, delivery port 15-8 are set, with every effect evaporimeter The top venthole 15-10 of 15 tube side bottom demister 15-9, constitutes the water vapour of evaporimeter 15, solidifying hydraulic art tie point；

Often imitate inlet 15-11, the liquid outlet 15-4 institutes of fluid reservoir 15-3 of the tube side bottom fluid reservoir 15-3 of evaporimeter 15 Connection point liquid threeway, constitutes brine process tie point；

Often imitate the water vapour of the shell side of evaporimeter 15, coagulate hydraulic art tie point, the water vapour of tube side, brine process tie point, Imitated with before it by pipeline respectively, the corresponding technique tie point of aftereffect evaporimeter 15 is connected in series with each other, composition multi-effect distilling is molten Liquid purging by crystallization technique；

Seawater 21 is sequentially connected seawater make-up pump 17, each effect preheater 16, the tube side of first evaporator 15 top by pipeline Liquid distributor 15-5, composition seawater is supplemented, preheating circuit；

The liquid outlet 15-4 of the tube side bottom fluid reservoir 15-3 of last evaporator 15 connects a point liquid threeway, is connected by pipeline Brine pump 20, screw settling centrifuge 27, brine recycling pipeline and crystal salt pipeline, to isolate salt solution 23 and crystal salt 28, Composition salt solution separating circuit；

The tube side venthole 15-10 and shell side delivery port 15-8 of last evaporator 15, by pipeline rainbow in connecting tube is distinguished Condensing import 1-1 and solidifying water inlet 1-15 that circulation adverse current takes hot climbing film evaporator 1 are inhaled, condensing resource loop is constituted；

Whole low pressure water vapors 24 of steam outlet 6-5 are directly connected to the shell side bottom of first evaporator 15 and enter by pipeline Steam ports 15-6, composition heat pump loop；

High-pressure water vapor 11 connects the shell side bottom of first evaporator 15 and preheats air intake by flow control valve 26, pipeline 15-6-1, constitutes high-pressure water vapor preheating circuit.

Evaporimeter 15 is vertical tube climbing film evaporator 15；Or transverse tube climbing film evaporator 15；Or plate-type climbing film evaporator 15； Or vertical tube falling evaporimeter 15；Or horizontal pipe falling film evaporator 15.

In softening moisturizing step backheat preheating circuit, oil cooler 5-8 softened waters side, set cylinder regenerator 5-3 softened waters side, Subcooler 5-10 softened waters side, it can be changed by the order that placed in series connects；Its number of units connected by placed in series Can reduce.

Screw settling centrifuge 27 is high speed freezing centrifuge 27；Or disc centrifuge 27；Or tube centrifuge 27；Or incline bridge-type centrifuge 27；Or basket centrifuge 27；Or plate and frame filter 27；Or flat panel filter machine 27；Or It is vacuum rotating filter 27.

Whole low pressure water vapors 24 of steam outlet 6-5 by water vapour compressor 10 be collapsed into diffusion, heat up Heating steam 25, then the shell side bottom air intake 15-6 of first evaporator 15, composition heat pump and water vapor pressure are connected by pipeline Contracting machine heating circuit.

Siphon circulation adverse current takes the tube side top inlet port 1-8 of hot climbing film evaporator 1 by pipeline and two-way valve 1-10 in pipe The low-pressure injection mouth of connection injector 1-9, siphon circulation adverse current takes heat and rises the shell side top outlet of film steam boiler condenser 6 in pipe Mouth 6-8 connects the high pressure admission mouth of injector 1-9 by pipeline and two-way valve 1-10, and the oil return opening 5-1 of the air intake duct of compressor 5 leads to Piping and two-way valve 1-10 connect the middle extrusion gas port of injector 1-9, and siphon circulation adverse current takes hot climbing-film evaporation in composition pipe The oil return circuit of device 1.

Condensing 2 is indirect steam 2, or exhaust steam 2, or weary steam 2.

Driving equipment 5-2 is motor 5-2, or gas driven explosive motor 5-2, or gasoline driven internal-combustion engine Machine 5-2, or diesel driven explosive motor 5-2, or kerosene drives explosive motor 5-2, or Stirling external combustion starts Machine 5-2, or gas driven gas-turbine engine 5-2, or coal gas driving gas-turbine engine 5-2, or steam turbine 5- 2。

The operation principle of the present invention combines accompanying drawing 1 and is described as follows：

1st, multi-effect distilling solution purging by crystallization technique：By multigroup evaporimeter 15 and its preheater 16, Jing often imitates evaporimeter 15 The water vapour of shell side, solidifying hydraulic art tie point, the water vapour of tube side, brine process tie point, respectively by effect before pipeline and its, The corresponding technique tie point of aftereffect evaporimeter 15 is connected in series with each other, and constitutes multi-effect distilling solution purging by crystallization technique；It is right only to need The shell side input low pressure water vapor 24 of first evaporator 15 and its preheater 16 and/or heating steam 25 and/or high-pressure water vapor 11, and discharge its latent heat of condensation, reclaim solidifying water 22；Each effect from that point on, vulcanizes in advance spraying in this effect evaporimeter 15 When filling sea water 21 or Sprayer Circulation salt solution 23, while water recovery latent heat is imitated before recovery, this effect indirect steam is distilled out, And aftereffect evaporimeter 15 and its preheater 16 are introduced, repeat to reclaim the latent heat of condensation while solidifying water 22 is condensed into, to make respectively The preheating thermal source of seawater 21 is supplemented for the distillation thermal source of aftereffect circulated sprinkling salt solution 23, and aftereffect；It is front effect evaporimeter 15 and its The solidifying water 22 produced in preheater 16 and circulated sprinkling salt solution 23, then the effect pressure differential using before and after, introduces respectively aftereffect evaporimeter 15 corresponding technique tie point ... so repeats, and produced indirect steam is lowered the temperature step by step, is depressured, and repeats to reclaim solidifying Knot latent heat, the indirect steam distilled out until last evaporator 15 is flowed out by its venthole 15-10, and each effect evaporimeter 15 and The solidifying water 22 produced in its preheater 16 is flowed out by delivery port 15-8, its temperature close ambient condition.

2nd, preheat and supplement seawater 21：Seawater 21 is driven by seawater make-up pump 17, and each effect preheater 16, head are inversely flowed through successively Effect evaporimeter 15 tube side top liquid distributor 15-5, inversely to preheat step by step seawater 21 is supplemented.

3rd, salt solution is discharged：The liquid outlet 15-4 of the tube side bottom fluid reservoir 15-3 of last evaporator 15 connects point liquid threeway Salt solution 23, is driven by brine pump 20 and discharges environment.

4th, indirect steam condensation heat：The condensing 2 that the tube side venthole 15-10 of last evaporator 15 is discharged is solidifying by top Vapor inlet 1-1, is introduced into siphon circulation adverse current in pipe and takes in the shell side of hot climbing film evaporator 1, and at middle part, annulus is distributed vertical siphon and takes Condensation heat becomes solidifying water 22 on the outside of heat tube bundle 1-3；The solidifying water 22 that the shell side delivery port 15-8 of last evaporator 15 is discharged passes through Solidifying water inlet 1-15, is introduced into siphon circulation adverse current in pipe and takes in the shell side of hot climbing film evaporator 1, and in annulus vertical rainbow extract heat is distributed Lower the temperature after heat release on the outside of tube bundle 1-3；And the latent heat of condensation of condensing 2, and the cooling sensible heat of solidifying water 22 are reclaimed by heat pump cycle, with Source heat pump heat is provided.

5th, heat pump fluid adverse current takes hot climbing-film evaporation：Siphon circulation adverse current is taken in the tube side top of hot climbing film evaporator 1 in pipe The liquid-level switch 3 that wall is arranged, according to the aperture of heat pump fluid liquid level signal closed-loop control expansion valve 4, so that low pressure two-phase heat pump Working medium 7 flows through from bottom to up tube side bottom liquid heat pump fluid import 1-6, bottom tapping chamber 1-4, middle part annulus and is distributed vertical rainbow Extract heat tube bundle 1-3 inner sides, top disengagement chamber 1-2, top gaseous state heat pump fluid outlet 1-7, heat pump fluid therein 7 is in liquid Acted on by pipeline external pressure at heat pump fluid import 1-6 and be flowed directly to branch chamber 1-4, annulus and be distributed vertical siphon heat removing tube cluster 1- 3 inner sides, then extract in a counter-current configuration condensing source heat release and climbing-film evaporation, proportion reduce, and under the siphon of central cylindrical space In drop passage 1-12, because the temperature of heat pump fluid 7 is relatively low, proportion is larger, therefore sunk by Action of Gravity Field, so as to form driving The siphon circulation of augmentation of heat transfer.

6th, heat pump cycle：Siphon circulation adverse current takes the tube side of hot climbing film evaporator 1 top low pressure superheated gaseous heat pump work in pipe Matter 7 is collapsed into high pressure superheater gaseous state heat pump fluid 7, Jing oil eliminator 5- by the compressor 5 that combustion gas explosive motor 5-2 drives After 4 oily separation, it is re-fed into managing interior siphon circulation adverse current and taking the hot shell side for rising film steam boiler condenser 6 and condense becoming high pressure Supercooled liquid heat pump fluid 7, flows through liquid heat pump fluid outlet 6-7, device for drying and filtering 4-1, subcooler 5-10 and crosses cold side, then Jing Expansion valve 4 throttles and becomes low pressure two-phase heat pump fluid 7, back flows back into siphon circulation adverse current in pipe and takes hot climbing film evaporator 1 and manage Journey, after reclaiming the latent heat of condensation of condensing 2, evaporation becomes low pressure superheated gaseous heat pump fluid 7, to complete condensing source heat pump cycle； Condenser heat is released to simultaneously manage the softening moisturizing 8 that interior siphon circulation adverse current takes the tube side of heat liter film steam boiler condenser 6.

7th, heat pump fluid condensation heat release：High pressure superheater gaseous state heat pump fluid 7 flows through from top to bottom siphon circulation adverse current in pipe Take the gaseous state heat pump fluid import 6-6 at the top of the shell side of heat liter film steam boiler condenser 6, middle part annulus and be distributed vertical siphon heat release Tube bundle 6-3 outsides, bottom liquid heat pump fluid outlet 6-7, then in a counter-current configuration its overheated sensible heat of releasing by parts, condensation are latent Heat, supercooling sensible heat, and condensing becomes high pressure supercooled liquid heat pump fluid 7.

8th, the heat release of water 22 is coagulated：The solidifying water 22 produced after the heat release of condensing source, flows through solidifying water out 1-5, fixed gas separator 1- 11st, condensate pump 1-13, the solidifying water sides of solidifying water regenerator 1-14, to discharge its sensible heat after lower the temperature.

9th, oil cooling heat release：The compressor high temperature grease that Jing oil eliminator 5-4 are isolated, flows through its bottom and goes out according to pressure reduction Hydraulic fluid port, manual ball valve 5-9, oil cooler 5-8, oil strainer 5-5, flow switch 5-6, magnetic valve 5-7, manual ball valve 5-9, pressure The oil return opening of contracting machine 5, to discharge its sensible heat after lower the temperature.

10th, cylinder heat release is covered：The set cylinder recirculated cooling water and flue gas recirculation cooling water of engine 5-2 flows through set cylinder regenerator 5- 3, to discharge its sensible heat after lower the temperature.

11st, heat release is subcooled：Condensation become high pressure supercooling liquid heat pump fluid 7, flow through liquid heat pump fluid outlet 6-7, Device for drying and filtering 4-1, subcooler 5-10 cross cold side, to discharge its sensible heat after lower the temperature.

12nd, step backheat：Soften moisturizing 8 and flow through solidifying water regenerator 1-14 softened waters side, diversion three-way, oil cooler 5-8 Softened water side, set cylinder regenerator 5-3 softened waters side, subcooler 5-10 softened waters side, threeway of confluxing, reclaim solidifying water and show with step Heat, oil cooling sensible heat, set cylinder sensible heat, supercooling sensible heat, and softening moisturizing is fully warmed-up to its evaporating temperature.

13rd, soften moisturizing adverse current and take hot climbing-film evaporation：Siphon circulation adverse current takes heat liter film steam boiler condenser 6 and manages in pipe The liquid-level switch 3 that journey upper inside wall is arranged, according to the water level signal closed-loop control for softening moisturizing 8 refill flow regulating valve 9 is softened Aperture so that soften moisturizing 8 flow through from bottom to up softening moisturizing import 6-1, bottom tapping chamber 6-4, middle part annulus distribution hang down Straight siphon heat release tube bundle 6-3 inner sides, then extract in a counter-current configuration the condensation heat release of heat pump fluid 7 and climbing-film evaporation, proportion subtract It is little, and in central cylindrical space siphon decline passway 6-9, because the temperature for softening moisturizing is relatively low, proportion is larger, therefore by weight Power effect is sunk, so as to form the siphon circulation for driving augmentation of heat transfer；And the Jing of the low pressure water vapor 24 tops disengagement chamber 6-2 for producing Separation after, then discharged by top steam outlet 6-5.

14th, high-pressure water vapor pre-heating technique device：The temperature switch 13 arranged by top disengagement chamber 6-2 inwalls passes through flow Control valve 26 controls the flow of high-pressure water vapor 11 so as to which vapour is entered in the preheating for flowing into the shell side bottom of first evaporator 15 by pipeline Mouth 15-6-1, to preheat multi-effect distilling solution purging by crystallization process unit, until it is reached after steady operational status, by temperature Switch 13 closes flow control valve 26 to stop supplying high-pressure water vapor 11.

15th, low pressure water vapor fully recovering and with heat pump process unit：Whole low pressure water of steam outlet 6-5 steam Vapour 24 is flowed directly to the shell side bottom air intake 15-6 of first evaporator 15 by pipeline.

16th, heating steam fully recovering and process unit is heated with heat pump and water vapour compressor jointly：By top point The steam rates of the control water vapour of pressure switch 12 compressor 10 arranged from chamber 6-2 inwalls；So that steam outlet 6-5 Whole low pressure water vapors 24 can pass through water vapour compressor 10 and be collapsed into diffusion, the heating steam 25 for heating up, then by pipe Road connects the shell side bottom air intake 15-6 of first evaporator 15.

17th, crystal salt is produced：The high temperature salt solution of multi-effect distilling production, then the separation of solid and liquid of Jing screw settling centrifuges, and Production crystal salt and salt solution；It is stand-by that the crystal salt for being produced delivers to collecting pit by conveyer belt.

18th, multi-effect distilling circular treatment：The salt solution for being produced is sent back to again in multi-effect distilling technique with supplementing after sea water mixing Circular treatment, to realize recycling economy in zero-emission.

19th, compressor oil return：Siphon circulation adverse current takes heat and rises the shell side top gas outlet 6- of film steam boiler condenser 6 in pipe 8 high-pressure gaseous heat pump fluid 7 flows through the high pressure admission mouth of injector 1-9 by pipeline, two-way valve 1-10, and high by its nozzle Speed sprays, and the negative pressure for being formed takes heat and rises film by siphon circulation adverse current in its low-pressure injection mouth, pipeline, two-way valve 1-10, pipe The inlet port 1-8 on the tube side top of evaporimeter 1 and injection lubricating oil, and mix, diffusion becomes middle pressure fluid, then Jing wherein extrudes gas Mouth, pipeline, two-way valve 1-10, send the air intake duct oil return opening 5-1 of compressor 5 back to.

20th, fixed gas is discharged：Vavuum pump 14 is opened, never to coagulate gas separating device 1-11 the fixed gas coagulated in water 22 is extracted out, And discharge environment.And drain into environment.

Therefore compared with existing condensing source heat pump and multi-effect distilling solution purging by crystallization technique, feature of the present invention is as follows：

(1) system integration condensing source heat pump and multi-effect distilling solution purging by crystallization technique, are that heat pump industry is crystallized with solution The product transboundary of purification industry；

(2) latent heat that last evaporator distills out condensing is not only reclaimed using condensing source heat pump, and step reclaims solidifying Water sensible heat, oil cooling sensible heat, set cylinder sensible heat, supercooling sensible heat；

(3) using condensing source heat pump and water vapour compressor, heating steam is produced jointly, to realize independent driving multiple-effect Retort solution purging by crystallization technique；

(4) the high temperature salt solution of multi-effect distilling production, then the separation of solid and liquid of Jing screw settling centrifuges, and produce crystal salt and Salt solution；It is stand-by that the crystal salt for being produced delivers to collecting pit by conveyer belt；

(5) salt solution for being produced send circular treatment in multi-effect distilling technique back to again after sea water mixing with supplementing, to realize following Zero-emission in ring economy.

Therefore compared with existing multi-effect distilling solution purging by crystallization technique, the technology of the present invention advantage is as follows：The system integration Condensing source heat pump and multi-effect distilling solution purging by crystallization technique, are the products transboundary of heat pump industry and solution purging by crystallization industry； The latent heat that last evaporator distills out condensing is not only reclaimed using condensing source heat pump, and step reclaims solidifying water sensible heat, oil cooling Sensible heat, set cylinder sensible heat, supercooling sensible heat；Using condensing source heat pump and water vapour compressor, heating steam is produced jointly, to realize It is independent to drive multi-effect distilling solution purging by crystallization technique；The high temperature salt solution of multi-effect distilling production, then Jing screw settling centrifuges Separation of solid and liquid, and produce crystal salt and salt solution；It is stand-by that the crystal salt for being produced delivers to collecting pit by conveyer belt；The salt solution for being produced With supplement sea water mixing after send circular treatment in multi-effect distilling technique back to again, to realize recycling economy in zero-emission.

(4) illustrate

Accompanying drawing 1 is system flow chart of the invention.

As shown in Figure 1, wherein：Siphon circulation adverse current takes hot climbing film evaporator in 1- pipes；1-1- condensing imports；1-2- point From chamber；1-3- annulus is distributed vertical siphon heat removing tube cluster；1-4- branch chambers；1-5- coagulates water out；1-6- liquid heat pump fluids enter Mouthful；1-7- gaseous states heat pump fluid is exported；1-8- inlet ports；1-9- injectors；1-10- two-way valves；1-11- fixed gas separators； 1-12- cylindrical space siphon decline passways；1-13- condensate pumps；The solidifying water regenerators of 1-14-；1-15- coagulates water inlet；2- condensings；3- Liquid-level switch；4- expansion valves；4-1- devices for drying and filtering；5- compressors；5-1- oil return openings；5-2- driving equipments；5-3- set cylinders are returned Hot device；5-4- oil eliminators；5-5- oil strainers；5-6- flow switches；5-7- magnetic valves；5-8- oil coolers；5-9- is manual Ball valve；5-10- subcoolers；Siphon circulation adverse current takes heat and rises film steam boiler condenser in 6- pipes；6-1- softens moisturizing import；6- 2- disengagement chambers；6-3- annulus is distributed vertical siphon heat release tube bundle；6-4- branch chambers；6-5- steam outlets；6-6- gaseous state heat pumps Working medium import；6-7- liquid heat pump fluid is exported；6-8- gas outlets；6-9- cylindrical space siphon decline passways；7- heat pump fluids； 8- softens moisturizing；9- softens refill flow regulating valve；10- water vapour compressors；11- high-pressure water vapors；12- pressure switches；13- Temperature switch；14- vavuum pumps；15- evaporimeters；15-1- steam pipes；15-2- coagulates water pipe；15-3- fluid reservoirs；15-4- liquid outlets； 15-5- liquid distributors；15-6- air intakes；15-6-1- preheats air intake；15-7- water inlets；15-8- delivery ports；15-9- foam removals Device；15-10- ventholes；15-11- inlets；16- preheaters；17- seawater make-up pumps；18- circulated sprinkling pumps；19- flows are adjusted Section valve；20- brine pumps；21- seawater；22- coagulates water；23- salt solution；24- low pressure water vapors；25- heating steams；26- flow controls Valve processed；27- screw settling centrifuges；28- crystal salts.

(5) specific embodiment

Condensing source proposed by the present invention heat pump drives multi-effect distilling solution purging by crystallization process example as shown in Figure 1, Now it is described as follows：Its by evaporate backheat amount 4050kW, be vertically arranged, carbon steel manufacture pipe in siphon circulation adverse current take heat rise film steam Send out device 1；The stainless steel tube condensing import 1-1 of diameter 200mm/ wall thickness 2.5mm/ length 200mm；Diameter 1200mm/ height 800mm Cylindrical disengagement chamber 1-2；The annulus distribution of bag diameter 840mm/ height 2000mm/ caliber 19mm in overall diameter 1200mm/ Vertical siphon heat removing tube cluster 1-3；Cylindrical branch chamber 1-4 of diameter 1200mm/ height 300mm；Diameter 40mm/ wall thickness 1.5mm/ The solidifying water out 1-5 of the stainless steel tube of length 60mm；The copper tube liquid heat pump fluid of diameter 60mm/ wall thickness 1.5mm/ length 60mm Import 1-6；The copper tube gaseous state heat pump fluid outlet 1-7 of diameter 120mm/ wall thickness 1.5mm/ length 120mm；Diameter 12mm/ walls The copper tube inlet port 1-8 of thick 0.9mm/ length 20mm；The copper tube of interface diameter 12mm/ wall thickness 0.9mm/ length 150mm draws Emitter 1-9；The pass ball valve 1-10 of brass two of interface diameter 12mm/ wall thickness 0.9mm/ length 150mm；Interface diameter 9mm/ wall thickness The stainless steel tube fixed gas separator 1-11 of 0.9mm/ length 20mm；The cylinder of internal diameter 800mm/ thickness 3mm/ height 2000mm is empty Between siphon decline passway 1-12；The condensate pump 1-13 of flow 12t/h, lift 15mH20；The solidifying water regenerator 1- of backheat amount 517kW 14；The solidifying water inlet 1-15 of the stainless steel tube of interface diameter 9mm/ wall thickness 0.9mm/ length 20mm；Flow 5.79t/h, temperature 50 C Saturation condensing 2；The molten stainless steel bit switch 3 of height 120mm；The brass expansion valve 4 of interface diameter 60mm/ wall thickness 1mm；Interface is straight The copper tube device for drying and filtering 4-1 of footpath 60mm/ wall thickness 1mm；The compressor 5 of inspiratory capacity 4000m3/h；Diameter 12mm/ wall thickness The copper tube oil return opening 5-1 of 0.9mm/ length 20mm；The combustion gas explosive motor 5-2 of output shaft power 967kW；Set cylinder cooling and The set cylinder regenerator 5-3 of flue gas backheat amount 967kW；The oil eliminator 5-4 of oil efficiency 99%；Interface diameter 19mm/ wall thickness The red copper oil strainer 5-5 of 0.9mm/ length 120mm；The brass flow of interface diameter 19mm/ wall thickness 0.9mm/ length 120mm is opened Close 5-6；The brass magnetic valve 5-7 of interface diameter 19mm/ wall thickness 0.9mm/ length 120mm；The oil cooler 5- of oil cooling amount 170kW 8；The brass manual ball valve 5-9 of interface diameter 19mm/ wall thickness 0.9mm/ length 120mm；Cross the subcooler 5-10 of cold 517kW； Siphon circulation adverse current takes heat and rises film steam boiler condenser 6 in the pipe of condensation thermal discharge 5017kW；Diameter 60mm/ wall thickness 2.5mm/ The stainless steel tube of length 60mm softens moisturizing import 6-1；The cylindrical disengagement chamber 6-2 of diameter 1200mm/ height 800mm；Outsourcing The annulus of bag diameter 840mm/ height 2000mm/ caliber 19mm is distributed vertical siphon heat release tube bundle 6-3 in diameter 1200mm/；Directly Cylindrical branch chamber 6-4 of footpath 1200mm/ height 400mm；The stainless steel tube water of diameter 200mm/ wall thickness 2.5mm/ length 200mm Steam (vapor) outlet 6-5；The copper tube gaseous state heat pump fluid import 6-6 of diameter 120mm/ wall thickness 1.5mm/ length 120mm；Diameter The copper tube liquid heat pump fluid outlet 6-7 of 60mm/ wall thickness 1.5mm/ length 60mm；Diameter 12mm/ wall thickness 0.9mm/ length The copper tube gas outlet 6-8 of 20mm；The cylindrical space siphon decline passway 6-9 of internal diameter 800mm/ thickness 3mm/ height 2000mm； R124 heat pump fluids 7；The softening moisturizing 8 of 20 DEG C of inlet temperature, flow 7t/h；Interface diameter 60mm/ wall thickness 2.5mm/ length The stainless steel of 60mm softens refill flow regulating valve 9；Absolute pressure 0.7bar, the water vapor pressure of flow 7t/h are reduced to absolute pressure 0.9bar Water vapour compressor 10；The high-pressure water vapor 11 of absolute pressure 9bar, flow 7t/h；The pressure switch 12 of 0.2bar-1.5bar；0℃- 120 DEG C of temperature switch 13；The vavuum pump 14 of extraction flow 3m3/min；The evaporimeter 15 of evaporation capacity 5017kW；Diameter 100mm/ The stainless steel steam pipe 15-1 of wall thickness 2.5mm/ length 500mm；The stainless steel of diameter 60mm/ wall thickness 2.0mm/ length 500mm coagulates Water pipe 15-2；The fluid reservoir 15-3 of volume 4m3；The stainless steel liquid outlet 15-4 of diameter 200mm/ wall thickness 2.5mm/ length 200mm； The stainless steel liquid distributor 15-5 of diameter 1100mm/ wall thickness 2.5mm；The stainless steel of diameter 200mm/ wall thickness 2.5mm/ length 200mm Air intake 15-6 and preheating air intake 15-6-1；The stainless steel water inlet 15-7 of diameter 60mm/ wall thickness 2.0mm/ length 60mm；Directly The stainless steel delivery port 15-8 of footpath 60mm/ wall thickness 2.0mm/ length 60mm；The demister 15-9 of 80 mesh；Diameter 200mm/ wall thickness The stainless steel venthole 15-10 of 2.5mm/ length 200mm；The stainless steel inlet of diameter 60mm/ wall thickness 2.0mm/ length 60mm 15-11；The preheater 16 of backheat amount 400kW；The seawater make-up pump 17 of flow 18t/h, lift 20mH20；Flow 35t/h, lift The circulated sprinkling pump 18 of 10mH20；The stainless steel flow control valve 19 of interface diameter 200mm/ wall thickness 2.5mm/ length 200mm；Stream Amount 6t/h, the brine pump 20 of lift 15mH20；The seawater 21 of 20 DEG C of temperature, flow 18t/h；25 DEG C of temperature, flow 12t/h it is solidifying Water 22；The salt solution 23 of 40 DEG C of temperature, flow 6t/h；The low pressure water vapor 24 of absolute pressure 0.7bar, flow 7t/h；Absolute pressure 0.9bar, The heating steam 25 of flow 7t/h；The stainless steel flow control valve 26 of diameter 200mm/ wall thickness 2.5mm/ length 400mm；Salt solution Process the screw settling centrifuge 27 of flow 6t/h；30 DEG C of temperature, mass concentration 85%, the crystal salt 28 of flow 4t/h are constituted.

Siphon circulation adverse current takes the napex condensing import 1-1 of the shell side of hot climbing film evaporator 1, the distribution of middle part annulus vertically in pipe Siphon heat removing tube cluster 1-3 outsides, the solidifying water out 1-5 in bottom, fixed gas separator 1-11, condensate pump 1-13, solidifying water regenerator 1- 14 solidifying water sides, the solidifying backheat loop of water 22 of composition condensing 2 heat release；

Evaporimeter 15 is vertical tube falling evaporimeter 15.

Condensing 2 is indirect steam 2.

Driving equipment 5-2 is gas driven explosive motor 5-2.

In the embodiment of the present invention：

By multigroup evaporimeter 15 and its preheater 16, Jing often imitates the water vapour of the shell side of evaporimeter 15, solidifying hydraulic art tie point, The water vapour of tube side, brine process tie point, respectively by pipeline and its front effect, the corresponding technique tie point of aftereffect evaporimeter 15 It is connected in series with each other, constitutes multi-effect distilling solution purging by crystallization technique；Only need to be to first evaporator 15 and its shell of preheater 16 Journey is input into low pressure water vapor 24 and/or heating steam 25 and/or high-pressure water vapor 11, and discharges its latent heat of condensation, reclaims solidifying water 22；Each effect from that point on, when the supplementary seawater 21 of spray preheating in this effect evaporimeter 15 or Sprayer Circulation salt solution 23, Before reclaiming while effect water recovery latent heat, this effect indirect steam is distilled out, and introduce aftereffect evaporimeter 15 and its preheater 16, repeat to reclaim the latent heat of condensation while solidifying water 22 is condensed into, using the distillation heat as aftereffect circulated sprinkling salt solution 23 Source, and the preheating thermal source of aftereffect supplement seawater 21；The solidifying water 22 produced in front effect evaporimeter 15 and its preheater 16 and circulation Spray salt solution 23, then the effect pressure differential using before and after, introduces respectively corresponding technique tie point ... so weight of aftereffect evaporimeter 15 Carry out again, produced indirect steam is lowered the temperature step by step, is depressured, and repeat to reclaim the latent heat of condensation, until last evaporator 15 distills The indirect steam for going out is flowed out by its venthole 15-10, and the solidifying water 22 produced in each effect evaporimeter 15 and its preheater 16 by Delivery port 15-8 flows out, its temperature close ambient condition.

Seawater 21 is driven by seawater make-up pump 17, and each effect preheater 16, the tube side top of first evaporator 15 are inversely flowed through successively Portion liquid distributor 15-5, inversely to preheat step by step seawater 21 is supplemented.

The liquid outlet 15-4 of the tube side bottom fluid reservoir 15-3 of last evaporator 15 connects a point salt solution for liquid threeway 23, by salt Water pump 20 drives and discharges environment.

Flow 5.79t/h, the temperature 50 C condensing 2 that the tube side venthole 15-10 of last evaporator 15 is discharged is by top Condensing import 1-1, is introduced into siphon circulation adverse current in pipe and takes in the shell side of hot climbing film evaporator 1, and at middle part, annulus is distributed vertical siphon Condensation heat becomes solidifying water 22 on the outside of heat removing tube cluster 1-3；The solidifying water 22 that the shell side delivery port 15-8 of last evaporator 15 is discharged leads to Solidifying water inlet 1-15 is crossed, siphon circulation adverse current in pipe is introduced into and is taken in the shell side of hot climbing film evaporator 1, be distributed vertical siphon in annulus and take Lower the temperature after heat release on the outside of heat tube bundle 1-3；And the latent heat of condensation of condensing 2, and the cooling sensible heat of solidifying water 22 are reclaimed by heat pump cycle, To provide source heat pump heat.

Siphon circulation adverse current takes the liquid-level switch 3 of the tube side upper inside wall of hot climbing film evaporator 1 setting in pipe, according to heat pump work The aperture of matter liquid level signal closed-loop control expansion valve 4, so that low pressure two-phase heat pump fluid 7 flows through from bottom to up tube side bottom liquid Heat pump fluid import 1-6, bottom tapping chamber 1-4, middle part annulus are distributed vertical siphon heat removing tube cluster 1-3 inner sides, top disengagement chamber 1-2, top gaseous state heat pump fluid outlet 1-7, heat pump fluid therein 7 receives pipeline external pressure at liquid heat pump fluid import 1-6 Act on and be flowed directly to branch chamber 1-4, annulus and be distributed vertical siphon heat removing tube cluster 1-3 inner sides, then extract in a counter-current configuration The source heat release of 4050kW condensings and climbing-film evaporation, proportion reduce, and in central cylindrical space siphon decline passway 1-12, due to heat The temperature of pump work substance 7 is relatively low, proportion is larger, therefore is sunk by Action of Gravity Field, so as to form the siphon circulation for driving augmentation of heat transfer.

Siphon circulation adverse current takes the tube side of hot climbing film evaporator 1 top low pressure superheated gaseous heat pump fluid 7 by combustion gas in pipe The compressor 5 that burn engine 5-2 drives is collapsed into high pressure superheater gaseous state heat pump fluid 7, and the oil of Jing oil eliminator 5-4 separates it Afterwards, it is re-fed into managing interior siphon circulation adverse current and taking the hot shell side for rising film steam boiler condenser 6 and condense becoming high pressure supercooled liquid heat Pump work substance 7, flows through liquid heat pump fluid outlet 6-7, device for drying and filtering 4-1, subcooler 5-10 and crosses cold side, then expanded valve 4 is saved Flow and become low pressure two-phase heat pump fluid 7, back flow back into siphon circulation adverse current in pipe and take the tube side of hot climbing film evaporator 1, reclaim and coagulate After the latent heat of condensation of vapour 2, evaporation becomes low pressure superheated gaseous heat pump fluid 7, to complete condensing source heat pump cycle；While handle The condenser heat of 5017kW is released to manage interior siphon circulation adverse current and takes heat and rises the tube side inlet temperature 20 of film steam boiler condenser 6 DEG C, the softening moisturizing 8 of flow 7t/h.

High pressure superheater gaseous state heat pump fluid 7 flows through from top to bottom siphon circulation adverse current in pipe and takes heat liter film steam boiler condensation Gaseous state heat pump fluid import 6-6, middle part annulus at the top of the shell side of device 6 is distributed vertical siphon heat release tube bundle 6-3 outsides, bottom liquid Heat pump fluid export 6-7, then in a counter-current configuration its overheated sensible heat of releasing by parts, condensation latent heat, supercooling sensible heat, and condense become High pressure supercooled liquid heat pump fluid 7.

After the heat release of condensing source produce solidifying water 22, flow through solidifying water out 1-5, fixed gas separator 1-11, condensate pump 1-13, Solidifying water regenerator 1-14 coagulates water side, to discharge its sensible heat after lower the temperature.

The compressor high temperature grease that Jing oil eliminator 5-4 are isolated, according to pressure reduction its bottom oil-out, manual ball are flowed through Valve 5-9, oil cooler 5-8, oil strainer 5-5, flow switch 5-6, magnetic valve 5-7, manual ball valve 5-9, the oil return of compressor 5 Mouthful, to discharge its sensible heat after lower the temperature.

The set cylinder recirculated cooling water and flue gas recirculation cooling water of engine 5-2 flows through set cylinder regenerator 5-3, is shown with discharging it Lower the temperature after heat.

Condensation becomes the liquid heat pump fluid 7 of high pressure supercooling, flows through liquid heat pump fluid outlet 6-7, device for drying and filtering 4- 1st, subcooler 5-10 crosses cold side, to discharge its sensible heat after lower the temperature.

Soften moisturizing 8 and flow through solidifying water regenerator 1-14 softened waters side, diversion three-way, oil cooler 5-8 softened waters side, set cylinder Regenerator 5-3 softened waters side, subcooler 5-10 softened waters side, threeway of confluxing, with step solidifying water sensible heat, oil cooling sensible heat, set are reclaimed Cylinder sensible heat, supercooling sensible heat, and softening moisturizing is fully warmed-up to its evaporating temperature.

Siphon circulation adverse current takes heat and rises the liquid-level switch 3 that the tube side upper inside wall of film steam boiler condenser 6 is arranged in pipe, according to Soften the aperture of refill flow regulating valve 9 according to the water level signal closed-loop control for softening moisturizing 8 so that 80 DEG C of inlet temperature, flow The softening moisturizing 8 of 7t/h flows through from bottom to up softening moisturizing import 6-1, bottom tapping chamber 6-4, middle part annulus and is distributed vertical siphon Heat release tube bundle 6-3 inner sides, then extract in a counter-current configuration the 5017kW condensation heat releases of heat pump fluid 7 and climbing-film evaporation, proportion subtract It is little, and in central cylindrical space siphon decline passway 6-9, because the temperature for softening moisturizing is relatively low, proportion is larger, therefore by weight Power effect is sunk, so as to form the siphon circulation for driving augmentation of heat transfer；And absolute pressure 0.8bar, the low pressure water of flow 7t/h for producing Steam 24 is Jing after the separation of top disengagement chamber 6-2, then is discharged by top steam outlet 6-5.

The temperature switch 13 arranged by top disengagement chamber 6-2 inwalls controls absolute pressure 9bar, flow by flow control valve 26 The flow of the high-pressure water vapor 11 of 7t/h so as to which the preheating air intake 15- of the shell side bottom of first evaporator 15 is flowed into by pipeline 6-1, to preheat multi-effect distilling solution purging by crystallization process unit, until it is reached after steady operational status, by temperature switch 13 close flow control valves 26 to stop supplying high-pressure water vapor 11.

Whole absolute pressures 0.8bar of steam outlet 6-5, the low pressure water vapor 24 of flow 12t/h are flowed directly to by pipeline The shell side bottom air intake 15-6 of first evaporator 15.

The pressure switch 12 arranged by top disengagement chamber 6-2 inwalls controls the steam rates of water vapour compressor 10；With Making whole low pressure water vapors 24 of steam outlet 6-5 can be collapsed into diffusion, the heating for heating up by water vapour compressor 10 Water vapour 25, then the shell side bottom air intake 15-6 of first evaporator 15 is connected by pipeline.

The high temperature salt solution of multi-effect distilling production, then the separation of solid and liquid of Jing screw settling centrifuges, and produce crystal salt and salt Water；It is stand-by that the crystal salt for being produced delivers to collecting pit by conveyer belt.

The salt solution for being produced send circular treatment in multi-effect distilling technique back to again after sea water mixing with supplementing, to realize circulating Jing Zero-emission in Ji.

Siphon circulation adverse current takes the high-pressure gaseous heat that heat rises the shell side top gas outlet 6-8 of film steam boiler condenser 6 in pipe Pump work substance 7 flows through the high pressure admission mouth of injector 1-9 by pipeline, two-way valve 1-10, and is sprayed by its nozzle at high speeds, is formed Negative pressure by its low-pressure injection mouth, pipeline, two-way valve 1-10, pipe in siphon circulation adverse current take on the tube side of hot climbing film evaporator 1 The inlet port 1-8 in portion and injection lubricating oil, and mix, diffusion becomes middle pressure fluid, then Jing wherein extrudes gas port, pipeline, two leads to Valve 1-10, sends the air intake duct oil return opening 5-1 of compressor 5 back to.

Vavuum pump 14 is opened, never to coagulate gas separating device 1-11 the fixed gas coagulated in water 22 is extracted out, and discharge environment.Side by side To environment.

Claims

1. a kind of condensing source heat pump drives multi-effect distilling solution purging by crystallization technique, and it takes heat liter film by interior siphon circulation adverse current is managed Evaporimeter (1)；Condensing import (1-1)；Disengagement chamber (1-2)；Annulus is distributed vertical siphon heat removing tube cluster (1-3)；Branch chamber (1- 4)；Solidifying water out (1-5)；Liquid heat pump fluid import (1-6)；Gaseous state heat pump fluid exports (1-7)；Inlet port (1-8)；Injection Device (1-9)；Two-way valve (1-10)；Fixed gas separator (1-11)；Cylindrical space siphon decline passway (1-12)；Condensate pump (1- 13)；Solidifying water regenerator (1-14)；Solidifying water inlet (1-15)；Condensing (2)；Liquid-level switch (3)；Expansion valve (4)；Device for drying and filtering (4-1)；Compressor (5)；Oil return opening (5-1)；Driving equipment (5-2)；Set cylinder regenerator (5-3)；Oil eliminator (5-4)；Oily mistake Filter (5-5)；Flow switch (5-6)；Magnetic valve (5-7)；Oil cooler (5-8)；Manual ball valve (5-9)；Subcooler (5-10)； Siphon circulation adverse current takes heat and rises film steam boiler condenser (6) in pipe；Soften moisturizing import (6-1)；Disengagement chamber (6-2)；Annulus It is distributed vertical siphon heat release tube bundle (6-3)；Branch chamber (6-4)；Steam outlet (6-5)；Gaseous state heat pump fluid import (6-6)； Liquid heat pump fluid exports (6-7)；Gas outlet (6-8)；Cylindrical space siphon decline passway (6-9)；Heat pump fluid (7)；Soften Moisturizing (8)；Soften refill flow regulating valve (9)；Water vapour compressor (10)；High-pressure water vapor (11)；Pressure switch (12)；Temperature Degree switch (13)；Vavuum pump (14)；Evaporimeter (15)；Steam pipe (15-1)；Solidifying water pipe (15-2)；Fluid reservoir (15-3)；Go out liquid Mouth (15-4)；Liquid distributor (15-5)；Air intake (15-6)；Preheating air intake (15-6-1)；Water inlet (15-7)；Delivery port (15- 8)；Demister (15-9)；Venthole (15-10)；Inlet (15-11)；Preheater (16)；Seawater make-up pump (17)；Circulation spray Drench pump (18)；Flow control valve (19)；Brine pump (20)；Seawater (21)；Solidifying water (22)；Salt solution (23)；Low pressure water vapor (24)； Pressurized steam (25)；Flow control valve (26)；Screw settling centrifuge (27)；Crystal salt (28) is constituted, it is characterised in that：Pipe Interior siphon circulation adverse current is taken hot climbing film evaporator (1) tube side top gaseous state heat pump fluid outlet (1-7) and is compressed by pipeline connection Siphon circulation adverse current takes heat and rises film steam boiler condenser (6) shell side, device for drying and filtering in machine (5), oil eliminator (5-4), pipe (4-1), subcooler (5-10) crosses siphon circulation adverse current in cold side, expansion valve (4), pipe and takes hot climbing film evaporator (1) tube side bottom Liquid heat pump fluid import (1-6), composition heat pump cycle loop；Oil eliminator (5-4) bottom oil-out connects hand by pipeline Dynamic ball valve (5-9), oil cooler (5-8) lubricating oil side, oil strainer (5-5), flow switch (5-6), magnetic valve (5-7), hand Dynamic ball valve (5-9), compressor (5) oil return opening, composition oil cooling backheat loop；Siphon circulation adverse current takes hot climbing film evaporator in pipe (1) the top condensing import (1-1) of shell side, middle part annulus are distributed vertical siphon heat removing tube cluster (1-3) outside, the solidifying water out in bottom (1-5), fixed gas separator (1-11), condensate pump (1-13), the solidifying water side of solidifying water regenerator (1-14), constitute condensing (2) heat release Solidifying water (22) backheat loop；Siphon circulation adverse current takes the bottom liquid heat pump fluid import of hot climbing film evaporator (1) tube side in pipe (1-6), bottom tapping chamber (1-4), middle part annulus be distributed vertical siphon heat removing tube cluster (1-3) inner side, top disengagement chamber (1-2), Top gaseous state heat pump fluid outlet (1-7), constitutes siphon circulation adverse current in the pipe of heat pump fluid and takes hot climbing-film evaporation loop, wherein It is annulus distribution, vertically disposed tube bundle that annulus is distributed vertical siphon heat removing tube cluster (1-3), and central authorities arrange a cylindrical space rainbow Decline passway (1-12) is inhaled, and multiple cylindrical spaces of tube bundle inwall are set to siphon rising passway, siphon decline passway and siphon The circulation area of rising passway is roughly equal；Siphon circulation adverse current takes the shell of hot climbing film evaporator (1) to be vertically arranged in pipe The face of cylinder；Siphon circulation adverse current takes hot climbing film evaporator (1) tube side upper inside wall and arranges liquid-level switch (3) in pipe, according to heat The aperture of pump work substance liquid level signal closed-loop control expansion valve (4), and the outlet of expansion valve (4) is followed by siphon in connecting pipe of pipeline Ring adverse current takes hot climbing film evaporator (1) tube side bottom liquid heat pump fluid import (1-6), constitutes heat pump fluid expansion circuit；Pipe Interior siphon circulation adverse current takes heat and rises top gaseous state heat pump fluid import (6-6) of film steam boiler condenser (6) shell side, middle part circle Ring is distributed vertical siphon heat release tube bundle (6-3) outside, bottom liquid heat pump fluid outlet (6-7), constitutes the adverse current of heat pump fluid Heat release loop；The interior siphon circulation adverse current of pipe takes the bottom of heat liter film steam boiler condenser (6) tube side and softens moisturizing import (6- 1), bottom tapping chamber (6-4), middle part annulus are distributed vertical siphon heat release tube bundle (6-3) inner side, top disengagement chamber (6-2), top Steam outlet (6-5), composition softens siphon circulation adverse current in the pipe of moisturizing and takes hot climbing-film evaporation loop, and wherein annulus distribution is hung down Straight siphon heat release tube bundle (6-3) is annulus distribution, vertically disposed tube bundle, and central authorities arrange a cylindrical space siphon decline passway (6-9), and multiple cylindrical spaces of tube bundle inwall are set to siphon rising passway, the stream of siphon decline passway and siphon rising passway Logical area is roughly equal；The shell that siphon circulation adverse current takes heat liter film steam boiler condenser (6) in pipe is vertically disposed circle Cylinder；Siphon circulation adverse current takes heat liter film steam boiler condenser (6) tube side upper inside wall and arranges liquid-level switch (3) in pipe, according to Soften the aperture of refill flow regulating valve (9) according to the water level signal closed-loop control for softening moisturizing (8), and soften refill flow and adjust The outlet of valve (9) takes heat and rises the softening of film steam boiler condenser (6) tube side bottom by siphon circulation adverse current in connecting pipe of pipeline Moisturizing import (6-1), with after softening moisturizing (8), composition softens refill flow regulating loop；Siphon circulation adverse current takes heat in pipe Rise film steam boiler condenser (6) tube side top steam outlet (6-5) and water vapour compressor (10), composition are connected by pipeline Water vapour compression circuit；Siphon circulation adverse current takes heat and rises in film steam boiler condenser (6) tube side top disengagement chamber (6-2) in pipe Wall arranges pressure switch (12) and temperature switch (13) is each one；Siphon circulation adverse current in the air inlet connecting tube of vavuum pump (14) Fixed gas separator (1-11) gas outlet that the solidifying water out (1-5) in hot climbing film evaporator (1) shell side bottom is connected is taken, composition is not Solidifying gas discharges loop；Soften moisturizing (8) and water regenerator (1-14) softened water side, diversion three-way, oil cooling are coagulated but by pipeline connection Device (5-8) softened water side, set cylinder regenerator (5-3) softened water side, subcooler (5-10) softened water side, threeway of confluxing, softening are mended The import of Water flow adjusting valve (9), composition softens moisturizing step backheat preheating circuit；Soften moisturizing (8) by pipeline connection point Stream threeway, flow control valve (19), threeway of confluxing, composition softens refill flow regulating loop；Often imitate evaporimeter (15) and its pre- The shell side of hot device (16) is connected with each other by the solidifying water pipe (15-2) in upper steam pipe (15-1) and bottom, and composition condenses backheat and returns Road；The liquid outlet (15-4) of evaporimeter (15) tube side bottom fluid reservoir (15-3) is often imitated, by pipeline connection point liquid threeway, circulation Spray pump (18), evaporimeter (15) tube side top liquid distributor (15-5), composition brine recycling spray loop；Often imitate evaporimeter (15) Shell side bottom arranges air intake (15-6), water inlet (15-7), delivery port (15-8), removes with every effect evaporimeter (15) tube side bottom The top venthole (15-10) of foam device (15-9), constitutes the water vapour of evaporimeter (15), solidifying hydraulic art tie point；Often effect evaporation The inlet (15-11) of device (15) tube side bottom fluid reservoir (15-3), the liquid outlet (15-4) of fluid reservoir (15-3) connect point Liquid threeway, constitutes brine process tie point；Often imitate the water vapour of evaporimeter (15) shell side, solidifying hydraulic art tie point, the water of tube side Steam, brine process tie point, are mutually gone here and there respectively by pipeline with the corresponding technique tie point of its front effect, aftereffect evaporimeter (15) Connection connection, constitutes multi-effect distilling technique；Seawater (21) is sequentially connected seawater make-up pump (17), respectively imitates preheater by pipeline (16), first evaporator (15) tube side top liquid distributor (15-5), composition seawater is supplemented, preheating circuit；Last evaporator (15) The liquid outlet (15-4) of tube side bottom fluid reservoir (15-3) connects a point liquid threeway, and by pipeline brine pump (20), spiral are connected Sedimentation centrifuge (27), brine recycling pipeline and crystal salt pipeline, to isolate salt solution (23) and crystal salt (28), constitute salt solution Separating circuit；The tube side venthole (15-10) of last evaporator (15) and shell side delivery port (15-8), are connected respectively by pipeline Siphon circulation adverse current takes condensing import (1-1) and the solidifying water inlet (1-15) of hot climbing film evaporator (1) in pipe, and composition condensing source is returned Road；Whole low pressure water vapors (24) of steam outlet (6-5) are directly connected to first evaporator (15) shell side bottom by pipeline Air intake (15-6), composition heat pump loop；High-pressure water vapor (11) is steamed by flow control valve (26), the first effect of pipeline connection Device (15) shell side bottom preheating air intake (15-6-1) is sent out, high-pressure water vapor preheating circuit is constituted.

2. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：Steam It is vertical tube climbing film evaporator (15) to send out device (15)；Or transverse tube climbing film evaporator (15)；Or plate-type climbing film evaporator (15)；Or It is vertical tube falling evaporimeter (15)；Or horizontal pipe falling film evaporator (15).

3. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：It is soft In changing moisturizing step backheat preheating circuit, oil cooler (5-8) softened water side, set cylinder regenerator (5-3) softened water side, subcooler (5-10) softened water side, it can be changed by the order that placed in series connects；It can be with by the number of units that placed in series connects Reduce.

4. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：Spiral shell Rotation sedimentation centrifuge (27) is high speed freezing centrifuge (27)；Or disc centrifuge (27)；Or tube centrifuge (27)； Or incline bridge-type centrifuge (27)；Or basket centrifuge (27)；Or plate and frame filter (27)；Or flat panel filter machine (27)；Or vacuum rotating filter (27).

5. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：Water Whole low pressure water vapors (24) of steam (vapor) outlet (6-5) are collapsed into diffusion, the pressurization for heating up by water vapour compressor (10) Water vapour (25), then first evaporator (15) shell side bottom air intake (15-6) is connected by pipeline, constitute heat pump and water vapour Compressor heating circuit.

6. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：Pipe Interior siphon circulation adverse current is taken hot climbing film evaporator (1) tube side top inlet port (1-8) and is connected by pipeline and two-way valve (1-10) The low-pressure injection mouth of injector (1-9), siphon circulation adverse current takes heat and rises film steam boiler condenser (6) shell side top outlet in pipe Mouthful (6-8) connect the high pressure admission mouth of injector (1-9) by pipeline and two-way valve (1-10), and compressor (5) air intake duct is returned Hydraulic fluid port (5-1) connects the middle extrusion gas port of injector (1-9) by pipeline and two-way valve (1-10), and siphon circulation is inverse in composition pipe Stream takes the oil return circuit of hot climbing film evaporator (1).

7. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：It is solidifying Vapour (2) is indirect steam (2), or exhaust steam (2), or weary steam (2).

8. multi-effect distilling solution purging by crystallization technique is driven according to the condensing source heat pump described in claim 1, it is characterised in that：Drive Dynamic equipment (5-2) is motor (5-2), or gas driven explosive motor (5-2), or gasoline driven explosive motor , or diesel driven explosive motor (5-2), or kerosene drives explosive motor (5-2), or Stirling external combustion (5-2) Engine (5-2), or gas driven gas-turbine engine (5-2), or coal gas driving gas-turbine engine (5-2), or Steam turbine (5-2).