CN203946902U - A kind of composite evaporation device of removing continuously pollutent from water - Google Patents
A kind of composite evaporation device of removing continuously pollutent from water Download PDFInfo
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- CN203946902U CN203946902U CN201420157669.7U CN201420157669U CN203946902U CN 203946902 U CN203946902 U CN 203946902U CN 201420157669 U CN201420157669 U CN 201420157669U CN 203946902 U CN203946902 U CN 203946902U
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- evaporation
- heat exchanger
- evaporating pot
- plate
- type heat
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses a kind of composite evaporation device of removing continuously pollutent from water, this device is comprised of mechanically compress evaporation and two elementary cells of multiple-effect evaporation.Two unit can be independently, series, parallel or operation alternately.First supplied materials sewage be concentrated the heating of liquid and vaporised liquid, in recovered energy and part has been removed the pollution substance in water.Next, sewage will be divided into saturation steam and pre-concentration liquid in separator, and saturation steam heats up by compressing, and pre-concentration liquid is forced to circulation.The part or all of logistics of extracting out from the pre-concentration liquid circulating will enter multiple-effect evaporation unit.Pre-concentration liquid is first by the steam heat-exchanging from boiler, and the secondary steam of generation enters the vaporizer of next stage, or returns to mechanically compress evaporation element and supplement as thermal source.The concentrated solution being produced by multiple-effect evaporation unit or supplied materials sewage is heated with recovered energy further and part and removes the pollution substance in water, or directly discharge.
Description
Technical field
The utility model relates to technical field of sewage, relates in particular to a kind of composite evaporation device of removing continuously pollutent from water.
Background technology
Typically, evaporation technology is a kind of efficient separation method, by evaporation, and the concentrated solution that we can obtain pure vaporize water and contain a large amount of non-volatile substances.Yet evaporation technology there will be some problems conventionally, in the process being evaporated at solution, can foul evaporation equipment even there is fouling in the mineral substance that solution contains or other component.Easily cause the material of fouling conventionally to wrap calcium-magnesium-containing silicon etc.Once equipment generation fouling, has a strong impact on generation to the normal operation of equipment, thereby makes traditional evaporation technology be difficult to realize continuous operation.
Another FAQs that can run into is exactly the high request to heat requirement.If can not find a kind of effective means, reclaim heat, institute's heat requirement completes the required whole latent heat amounts of aqueous solution evaporate by equaling under certain Pressure/Temperature so.In this case, if adopt traditional evaporation technology to be just difficult to adapt to the sewage disposal under industrialized condition.
In addition, in order thoroughly to solve the variety of issue occurring in sewage evaporation technique, also must consider other requisite factor, mainly contain: the heet transfer rate in vapo(u)rization system; The content of particular matter in concentrated solution; The final boiling point of the concentrated solution of relative saturation vapor temperature; The degree of supersaturation of concentrated solution and precipitation degree; The gasification degree of evaporation current.
In tradition waste water evaporation technology, often occur scale problems, reason is organism, inorganics and each metal ion species that this type of waste water contains a greater number conventionally.How do not occur under the prerequisite of spot or fouling guaranteeing, the thermal load of evaporation technology is maximized and recovered energy farthest, these vital problems are not solved preferably.
Utility model content
The utility model provides a kind of composite evaporation device of removing continuously pollutent from water, and it is a kind of aqueous solution evaporate technique that maximally utilises the energy, alleviates equipment scaling degree, improves the technique scope of application and allow equipment energy long-term stability move under maximum heating load condition.
The utility model is that a before common Individual existence or use two are evaporated concept or perfect combination has been carried out in technical process, and has successfully solved synergy each other.
Below three formula the most basic heat transfer relation in aqueous solution evaporate system has roughly been described:
Q
(always)=KA Δ T .... 1.
Q
(sensible heat)=mC
p(T
1-T
2) ... .... 2.
Q
(latent heat)=mH ... ... 3.
In formula:
Q: thermal load (kw)
K: overall heat transfer coefficient (kw/m
2/ ℃)
A: heat transfer area (m
2)
Δ T: the logarithm temperature difference
M: logistics capacity (kg/s)
Cp: specific heat (kj/s/ ℃)
T
1, T
2: fluid enters the temperature with outflow system
H: latent heat (kj/kg)
In order to obtain the vapo(u)rization system that efficiency is higher, the Q in above-mentioned formula should maximize, and the actual span of simultaneously following again other parameter prevents equipment scaling.For a specific fluid or heat exchanging apparatus, these variablees such as Q, Cp, H are constant comparatively speaking.Therefore,, in order to overcome the problem occurring in sewage evaporation process, must carry out careful careful value to A, Q/A, Δ T, m, these variablees of T1, T2.
The profound understanding of the heat transfer relation based on to the most basic in above-mentioned aqueous solution evaporate system just, the utility model transmits a kind of forced convection heat with distinct configuration with the steam mechanical recompression flow process of recovery of heat and a kind of single-action or multiple-effect evaporation technique of routine and combines, both can obtain thus heat transfer efficiency maximizes, also can maintain forced convection effect, so just there will not be before this frequent incidental high energy consumption and serious scale phenomenon in those traditional evaporation technologies.
The utility model adopts following technical scheme:
The composite evaporation device of removing continuously pollutent from water of the present utility model is comprised of mechanically compress evaporation and two elementary cells of multiple-effect evaporation, both independent operating separately between two elementary cells, also can series operation, also can parallel running, also can move alternately.
Described mechanically compress evaporation elementary cell comprises evaporating pot, 1 above plate-type heat exchanger, vapour compressor and pump, and wherein, evaporating pot comprises equipment itself and the pipeline being connected with vapour compressor, plate-type heat exchanger, pump thereof; Plate-type heat exchanger has two fluid channels that mutually can not be communicated with above, and these passages can and carry out pipeline from multiple-effect evaporation material partly with evaporating pot, vapour compressor, pump and be connected; Vapour compressor can make steam heat up, and is directly connected with evaporating pot with plate-type heat exchanger; The import of pump is connected with evaporating pot, and its outlet is connected with plate-type heat exchanger.
Described multiple-effect evaporation elementary cell comprises vapour generator, flash tank, 1 above vertical evaporating pot and concentrate pump, and wherein, vapour generator is boiler, and can be connected with the plate-type heat exchanger of mechanically compress evaporation section with vertical-type evaporator; Flash tank is connected with concentrate pump with vertical evaporating pot, or is connected with the vapour compressor of mechanically compress evaporation section; Vertical evaporating pot is comprised of tubular heat exchanger and separator and the pipeline that is connected with vapour generator, flash tank, concentrate pump thereof; The import of dope is connected with flash tank or vertical evaporating pot, and its outlet is connected with the plate-type heat exchanger of mechanically compress evaporation section.
Described plate-type heat exchanger is demountable structure.
Described vapour compressor is dragged by Sweet natural gas or electricity.
Described vapour generator is fixed or portable structure.
The material inlet of described vertical evaporating pot is positioned at the top of tank.
The using method of the composite evaporation device of removing continuously pollutent from water of the present utility model is as follows:
(1) first raw material is carried out to initial heating, remove the part pollutent that solution contains, simultaneously from steam condensate and concentrated solution recovered energy;
(2) raw material after step (1) heating is passed in a separator being heated and again heated, obtain steam and pre-concentration liquid;
(3) steam from being subject to heat separator is compressed to obtain the temperature difference in the heat-exchanging component that heavily boils;
(4) thus allow compression after steam contact and obtain phlegma with the heat-exchanging component that heavily boils;
(5) between the separator that heavily boils heat-exchanging component and be heated, part or all of pre-concentration liquid is circulated;
(6) extract part or all of pre-concentration liquid out to single-action/multiple-effect evaporation unit;
(7) pre-concentration liquid is again concentrated in vertical-type evaporator, obtains not containing the phlegma of pollutent and can be for the concentrated solution of crystallization, and the secondary steam being produced by vertical-type evaporator is back to machinery and recompresses evaporation element.
Positively effect of the present utility model is as follows:
The composite evaporation devices and methods therefor of removing continuously pollutent from water of the present utility model can remove organism, inorganics, metal ion and other material in anhydrating, and can under the prerequisite that does not occur any equipment scaling, obtain the pure water that does not contain pollution substance.The utility model is applicable to the sewage disposal in multiple industry, such as oil refining, petrochemical industry, papermaking, food, mineral products, automobile, transport trade, machinery manufacturing industry etc.In addition, also can be used for that percolate processing, desalination, underground water reparation, well water are clean, lagoon reparation, oil field waste reuse and any type of boiler feed water and dilute solution concentrate etc.
Accompanying drawing explanation
Fig. 1 is the continuous schematic diagram of removing the composite evaporation device of pollutent from water of the utility model embodiment 1.
Reference numeral wherein: 1 separator, 2 First Heat Exchangers, 3 second interchanger, 4 the 3rd interchanger, 5 vapour compressors, 6 first multiple-effect evaporators, 7 second multiple-effect evaporators, 8 flash tanks, 9 vapour generators, No. 10 pumps, 11 No. two pumps, 12 No. three pumps, 13 No. four pumps.
Fig. 2 is the continuous schematic diagram of removing the composite evaporation device of pollutent from water of the utility model embodiment 2.
Reference numeral wherein: 1 separator, 2 First Heat Exchangers, 3 second interchanger, 4 vapour compressors, 5 vertical evaporating pots, 6 flash tanks, 7 vapour generators, No. 8 pumps, 9 No. two pumps, 10 No. three pumps.
Embodiment
The following examples are to describe in further detail of the present utility model.
Embodiment 1
As shown in Figure 1, the composite evaporation device of removing continuously pollutent from water of the present utility model is comprised of separator 1, First Heat Exchanger 2, the second interchanger 3, the 3rd interchanger 4, vapour compressor 5, the first multiple-effect evaporator 6, the second multiple-effect evaporator 7, flash tank 8, vapour generator 9, pump 10, No. two pumps 11, No. three pumps 12 and No. four pumps 13.
First supplied materials sewage heated in First Heat Exchanger 2, the second interchanger 3 and the 3rd interchanger 4 by the concentrated liquid from technique inside and vaporised liquid, in recovered energy and part has been removed the pollution substance in water.Next, sewage will be divided into saturation steam and pre-concentration liquid two portions in separator 1, and saturation steam is wherein compressed and heated up by vapour compressor 5, and pre-concentration liquid is forced to circulation.The part or all of logistics of extracting out from the pre-concentration liquid circulating will enter the first multiple-effect evaporator 6.Pre-concentration liquid is first by the steam heat-exchanging from vapour generator 9, the secondary steam producing enters the second multiple-effect evaporator 7, the concentrated solution being produced by the first multiple-effect evaporator 6 heats so that recovered energy and part are removed the pollution substance in water, the direct technique of the present utility model battery limit (BL) of discharging of the concentrated solution being produced by the second multiple-effect evaporator 7 further supplied materials sewage.
Embodiment 2
As shown in Figure 2, the composite evaporation device of removing continuously pollutent from water of the present utility model is by separator 1, First Heat Exchanger 2, the second interchanger 3, vapour compressor 4, vertical evaporating pot 5, flash tank 6, vapour generator 7, pump 8, No. two pumps 9, No. three pumps 10.
First supplied materials sewage heated by steam and steam condensate through First Heat Exchanger 2 and the second interchanger 3, removes thus part pollutent, and enable to measure partially recycled, the pump circulation flow process that then enters pre-concentration liquid.By the pre-concentration liquid of a pump Final 8 system circulation in the separator 1 being heated by generating portion saturation steam, this saturation steam will enter vapour compressor 4 and be warmed, and with by vapour generator 7 with from the secondary steam of vertical evaporating pot 5, mix and enter successively First Heat Exchanger 2 and the second interchanger 3.Meanwhile, by extracting part pre-concentration liquid out by No. two pumps 9, the top of vertical evaporating pot 5 will be entered into, this burst of logistics is by the pot bottom that flows to from top to bottom, and after the stop of certain hour, enter into flash tank 6, by flash tank 6 afterheat steam out, deliver to steam supply loop, by flash tank 6 concentrated solution out, through No. three pumps 10, drain into certain the further disposal of unit do outside battery limit (BL).
The apparatus and method of application the present embodiment are carried out the processing of high salt oil-gas field sewage.
If need to reclaim side's's every days 200 clean distillating liquid and need provide TDS to be not less than 30% concentrated solution from source of pollution, this embodiment has represented Basic practice of the present utility model.
Related data is as follows:
One, supplied materials sewage quality
1, outward appearance: light yellow
2, smell: have obvious stink
3, colourity: 200(doubly)
4, pH value: 8.2
5、COD：520(mg/L)
6, viscosity: 3.3 (mPas)
7、SS：650(mg/L)
8, petroleum-type: 30 (mg/L)
9、TDS：20,000(mg/L)
Two, the water quality of purifying waste water
1, outward appearance: colourless
2, smell: without obvious peculiar smell
3, colourity: 50(doubly)
4, pH value: 7.0
5、COD：48(mg/L)
6, viscosity: 0.52 (mPas)
7、SS：3.0(mg/L)
8, petroleum-type: 5.0 (mg/L)
9、TDS：50(mg/L)
Three, main heat exchanger
1, heat interchanging area: 297.6 (m
2)
2, type: liner type sheet frame interchanger
3, heat transfer coefficient: 3074w/ (m
2℃)
4, the mean logarithmic temperature difference of revising: 1.23 (℃)
5, thermal load: 5138.7 (kw)
6、17.88(kw/m2))
7, condensation side
1. charging: 121.1 (℃), 148.3 (kpa)
2. discharging: 110.9 (℃), 147.6 (kpa)
3. saturated condensing temperature: 111.0 (℃), 148.3 (kpa)
4. steam latent heat: 2178.9 (kj/kg)
5. steam flow: 8.33 (t/h)
6. steam desuperheating amount: 93.1 (kw)
8, evaporation side
1. charging: 100.3 (℃), 128.2 (kpa)
2. discharging: 110.7 (℃), 111.0 (kpa)
3. vaporization heat: 2204.1 (kj/kg)
4. pre-concentration liquid internal circulating load: 84.08 (m
3/ h)
5. vaporization heat is loaded: 5101.5 (kw)
6. sensible heat load: 37.1 (kw)
Four, vertical-type evaporator
1, primary steam: 125.8 (℃), 1.58 (t/h)
2, secondary steam: 102.2 (℃), 1.32 (t/h)
3, concentrated solution TDS:30% (w)
4, concentrated liquid measure: 0.6 (t/h)
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that not departing from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalent thereof.
Claims (5)
1. a composite evaporation device of removing continuously pollutent from water, it is characterized in that: described composite evaporation device is comprised of mechanically compress evaporation and two elementary cells of multiple-effect evaporation, both independent operating separately between two elementary cells, also can series operation, also can parallel running, also can move alternately; Described mechanically compress evaporation elementary cell comprises evaporating pot, 1 above plate-type heat exchanger, vapour compressor and pump, and wherein, evaporating pot comprises equipment itself and the pipeline being connected with vapour compressor, plate-type heat exchanger, pump thereof; Plate-type heat exchanger has two fluid channels that mutually can not be communicated with above, and these passages can and carry out pipeline from multiple-effect evaporation material partly with evaporating pot, vapour compressor, pump and be connected; Vapour compressor can make steam heat up, and is directly connected with evaporating pot with plate-type heat exchanger; The import of pump is connected with evaporating pot, and its outlet is connected with plate-type heat exchanger; Described multiple-effect evaporation elementary cell comprises vapour generator, flash tank, 1 above vertical evaporating pot and concentrate pump, and wherein, vapour generator is boiler, and can be connected with the plate-type heat exchanger of mechanically compress evaporation section with vertical-type evaporator; Flash tank is connected with concentrate pump with vertical evaporating pot, or is connected with the vapour compressor of mechanically compress evaporation section; Vertical evaporating pot is comprised of tubular heat exchanger and separator and the pipeline that is connected with vapour generator, flash tank, concentrate pump thereof; The import of dope is connected with flash tank or vertical evaporating pot, and its outlet is connected with the plate-type heat exchanger of mechanically compress evaporation section.
2. composite evaporation device as claimed in claim 1, is characterized in that: described plate-type heat exchanger is demountable structure.
3. composite evaporation device as claimed in claim 1, is characterized in that: described vapour compressor is dragged by Sweet natural gas or electricity.
4. composite evaporation device as claimed in claim 1, is characterized in that: described vapour generator is fixed or portable structure.
5. composite evaporation device as claimed in claim 1, is characterized in that: the material inlet of described vertical evaporating pot is positioned at the top of tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157669.7U CN203946902U (en) | 2014-04-02 | 2014-04-02 | A kind of composite evaporation device of removing continuously pollutent from water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157669.7U CN203946902U (en) | 2014-04-02 | 2014-04-02 | A kind of composite evaporation device of removing continuously pollutent from water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203946902U true CN203946902U (en) | 2014-11-19 |
Family
ID=51888954
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157669.7U Expired - Fee Related CN203946902U (en) | 2014-04-02 | 2014-04-02 | A kind of composite evaporation device of removing continuously pollutent from water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896351A (en) * | 2014-04-02 | 2014-07-02 | 陕西胜利高原环保科技有限公司 | Compound evaporation device for continuously removing pollutants from water |
| CN107721055A (en) * | 2017-11-21 | 2018-02-23 | 泰安通利达水处理设备有限公司 | The device of saturation saline solution is extracted in a kind of industrial wastewater |
| CN110482632A (en) * | 2019-09-27 | 2019-11-22 | 北京天地人环保科技有限公司 | Rubbish percolation liquid membrane concentrate evaporating concentrating method and system |
-
2014
- 2014-04-02 CN CN201420157669.7U patent/CN203946902U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896351A (en) * | 2014-04-02 | 2014-07-02 | 陕西胜利高原环保科技有限公司 | Compound evaporation device for continuously removing pollutants from water |
| CN107721055A (en) * | 2017-11-21 | 2018-02-23 | 泰安通利达水处理设备有限公司 | The device of saturation saline solution is extracted in a kind of industrial wastewater |
| CN110482632A (en) * | 2019-09-27 | 2019-11-22 | 北京天地人环保科技有限公司 | Rubbish percolation liquid membrane concentrate evaporating concentrating method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20170402 |