CN203990317U - The stifled energy-saving film distiller of a kind of normal pressure anti-soil - Google Patents

The stifled energy-saving film distiller of a kind of normal pressure anti-soil Download PDF

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Publication number
CN203990317U
CN203990317U CN201420465882.4U CN201420465882U CN203990317U CN 203990317 U CN203990317 U CN 203990317U CN 201420465882 U CN201420465882 U CN 201420465882U CN 203990317 U CN203990317 U CN 203990317U
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China
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storehouse
cold liquid
hydrothermal solution
condenser pipe
clean water
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CN201420465882.4U
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Chinese (zh)
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刘宁生
王中华
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湖州森诺膜技术工程有限公司
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems with climate change mitigation effect characterised by the origin of the energy
    • Y02W10/37Wastewater or sewage treatment systems with climate change mitigation effect characterised by the origin of the energy using solar energy

Abstract

The utility model relates to the stifled energy-saving film distiller of a kind of normal pressure anti-soil, cold liquid storehouse comprises the cold liquid storehouse a and the cold liquid storehouse b that are communicated with by condenser pipe, clean water sump is under hydrothermal solution storehouse, cold liquid storehouse a is directly over hydrothermal solution storehouse, cold liquid storehouse b is under clean water sump, and condenser pipe passes from hydrothermal solution storehouse and clean water sump; Inherent condenser pipe periphery, hydrothermal solution storehouse is provided with PTFE microporous tube membrane, and has formed annular passage between PTFE microporous tube membrane and condenser pipe; Clean water sump is connected with annular passage; In hydrothermal solution storehouse, enter the processed steam-water mixing liquid of heating; In cold liquid storehouse a, send into normal temperature cooling fluid, it enters after by condenser pipe in cold liquid storehouse b and flows out, under the mass transfer driving force that steam in hydrothermal solution storehouse forms in the temperature difference, contact and be condensed into the liquid water purification that forms through PTFE microporous tube membrane with condenser pipe, water purification flows into clean water sump from annular passage.The utility model heat recovery rate is high, and salt rejection rate is high, applied range.

Description

The stifled energy-saving film distiller of a kind of normal pressure anti-soil

Technical field:

The utility model relates to water treatment facilities field, relates in particular the stifled energy-saving film distiller of a kind of normal pressure anti-soil.

Background technology:

Film distillation is the one of low temperature distillation technology, is the innovation based on conventional film isolation technics.Reverse osmosis membrane technology replaces traditional ion-exchange, electrodialysis desalination technology gradually at present, become the one preferred technique of pure water manufacture, city, industrial wastewater pollution degree of depth Treatment for Reuse, but the theoretical producing water ratio of reverse osmosis membrane technology only has 75%, reality is 60% left and right only, desalination is only limited to below 8%, and energy consumption is higher.Counter-infiltration is discharged dense water treatment and is mainly contained following three kinds of schemes: (1) dense water discharges after rinsing more medium filter; (2), to the processing of discharge water centralized recovery, utilize the removal calcium magnesium hardnesses such as lime softening method, recycling or qualified discharge after processing; (3) directly fully utilize in conjunction with production technology situation.But these methods are not all thoroughly dealt with problems, very low to the utilization rate of dense water, even cause the secondary pollution to environment.Because cryogenic film distillation technique is in separation process, only there is steam can see through hydrophobic fenestra, therefore the water quality that produced is very pure, higher than reverse osmosis water outlet water quality, salinity and concentration polarization are insignificant compared with counter-infiltration on film distillation impact, can process the aqueous solution of high concentration inorganic salts, even solution can be concentrated to hypersaturated state.Film distillation desalination producing water ratio can reach 100% in theory, and far above 75% of counter-infiltration, this is that existing all desalination treatment technology institute is inaccessiable.

On a large amount of film distillation research and experiment basis, develop four kinds of different film distillation procedure modes at present for many years, comprised direct contact membrane distillation, gap membrane distillation, the distillation of gas flow purging formula film and the distillation of vacuum type film.Wherein contact method is directly to enter pure water at cold side and carry out condensation seeing through the steam of perforated membrane, and therefore condensation process is integrated in membrane module, operate relatively simply, is therefore that studied maximum a kind of film distills mode.But compared with other mode of operation, directly contact membranes distillation can cause more thermal loss and comparatively serious temperature difference polarization; Vacuum type film distillation rule is to apply a negative pressure through side, and the water vapour that will see through perforated membrane be retracted in membrane module condenser in addition and carry out condensation liquefaction.The advantage of this process is that thermal loss is all less than other three kinds of film distillation procedure methods, and distillating ventilating amount is higher, but the pressure that the negative pressure applying enters fenestra lower than liquid can cause that fenestra humidifying, membrane material are subject to great impact in the environmental longevity of negative pressure for a long time.At present all there is moisture film hydrophiling leakage problems in existing above four kinds of films distillation modes, the blocking microporous film of solute substance fouling, some problems such as energy consumption is high simultaneously, efficiency is low, reliability is low.Therefore studying the long film distillation technology of new can anti-soil stifled, low energy consumption, life-span by for important, is to reduce investment and operating cost, reduces the concentrated water discharge inevitable choice of using that moves towards the industrialization.

Utility model content:

The purpose of this utility model is for the deficiencies in the prior art part, provides a kind of normal pressure anti-soil to block up energy-saving film distiller, and anti-soil is stifled, can effectively carry out heat recovery, PTFE microporous tube membrane long service life.

Technology solution of the present utility model is as follows:

The stifled energy-saving film distiller of a kind of normal pressure anti-soil, comprise cold liquid storehouse, hydrothermal solution storehouse and clean water sump, described cold liquid storehouse, hydrothermal solution storehouse and clean water sump are respectively circular cylindrical shell body structure, described clean water sump be positioned at hydrothermal solution storehouse under, described cold liquid storehouse has two, for cold liquid storehouse a and cold liquid storehouse b, cold liquid storehouse a is positioned at directly over hydrothermal solution storehouse, cold liquid storehouse b is positioned under clean water sump, between cold liquid storehouse a and cold liquid storehouse b, be connected together by more than 15 groups condenser pipes, and condenser pipe passes from hydrothermal solution storehouse and clean water sump; Inherent each group condenser pipe periphery, described hydrothermal solution storehouse is provided with one group of PTFE microporous tube membrane, and between PTFE microporous tube membrane and condenser pipe, has formed annular passage; Described clean water sump is connected with annular passage.

On the sidewall of described cold liquid storehouse a, be communicated with a cold liquid inlet tube, on the sidewall of cold liquid storehouse b, be communicated with a cold liquid outlet; On the lower sides in described hydrothermal solution storehouse, be communicated with a hydrothermal solution inlet tube, in the upper portion side wall in hydrothermal solution storehouse, be communicated with a hydrothermal solution outlet; On the sidewall of described clean water sump, be communicated with a pure water inlet pipe.

In described hydrothermal solution storehouse, be the processed steam-water mixing liquid that enters heating by pumping mode, and hydrothermal solution temperature in hydrothermal solution storehouse is not less than 70 DEG C, the inside and outside temperature difference of condenser pipe is 25 DEG C~35 DEG C; Logical supercooled liquid inlet tube enters normal temperature cooling fluid in cold liquid storehouse a, and cooling fluid enters in cold liquid storehouse b after by condenser pipe, and flows out from cold liquid outlet; In described clean water sump, collect the water purification freely flowing out from annular passage.

As preferably, described condenser pipe is that thickness is the hollow corrosion resisting alloy plated film condenser pipe of 3~5mm.

As preferably, the diameter of described pure water inlet pipe is 3~5mm.

As preferably, described hydrothermal solution inlet tube and hydrothermal solution outlet opposing parallel are arranged on the lower wall in hydrothermal solution storehouse and the upper side wall in hydrothermal solution storehouse.

As preferably, described condenser pipe upper end is spirally connected or to be weldingly fixed on cold liquid storehouse a upper, and condenser pipe lower end is spirally connected or is weldingly fixed on cold liquid storehouse b.

The beneficial effects of the utility model are:

The utility model is sent by pumping to the processed steam-water mixing liquid after heating in hydrothermal solution storehouse, PTFE microporous tube membrane is immersed in hydrothermal solution storehouse, condenser pipe is enclosed in PTFE microporous tube membrane, and the cold liquid of normal temperature enters by flowing out formation closed cycle from cold liquid outlet condenser pipe from cold liquid inlet tube, under the mass transfer driving force that processed steam-water mixing liquid after heating forms in the temperature difference, contact with condenser pipe and be condensed into the liquid water purification that forms through hydrophobic PTFE microporous tube membrane, condensation releasing heat is absorbed and the formation recuperation of heat that heats up by cold liquid, can be for removing the volatile solutes in the aqueous solution, the separation that the utility model is very suitable for VOC in the aqueous solution as a kind of novel membrane separation technique is concentrated, the temperature difference that is a kind of atmospheric low-temperature drives separation process, without under high pressure carrying out as pressure-driven membrane separation technique, therefore save the energy, and the cold liquid of normal temperature in condenser pipe by cycling hot exchange heat absorption progressively heated up form recuperation of heat recycling, its heat recovery rate is high.

PTFE microporous tube membrane of the present utility model has very strong chemical stability, lightweight, and corrosion-resistant strong, resistance to environmental change is good, is applicable to sewage purification, and its filtering accuracy is high.Hydrothermal solution is that vapour mixing wastewater with air liquid forms wriggling in hydrothermal solution storehouse, PTFE microporous tube membrane is to be immersed in the hydrothermal solution of wriggling, dirt in hydrothermal solution is difficult for being attached on PTFE microporous pipe face like this, can not produce hydrophobic membrane hydrophiling seepage, solute substance fouling blockage problem, again because mechanism of mass transfer is the mass transfer driving force of utilizing the temperature difference to form, without high drive, therefore mass-transfer efficiency is high, and energy consumption is low simultaneously, efficiency is high, reliability is strong, and the long service life of PTFE microporous tube membrane.Can utilize the cheap energy such as solar energy, underground heat, hot spring, waste heat of plant and warm industrial wastewater, realize the film distillation application of energy-conserving and environment-protective.

Multiple high concentration, high salinity, toxicity that the utility model is applicable to the industries such as organic chemical industry, fine chemistry industry, petrochemical industry, dyestuff, pharmacy, agricultural chemicals, printing and dyeing, papermaking are large, the organic wastewater degraded processing of bio-refractory, it is can anti-soil stifled, low energy consumption, distiller life-span are long, can reduce and invest and operating cost.

Brief description of the drawings:

Below in conjunction with accompanying drawing, the utility model is described further:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is use state perspective view of the present utility model.

Detailed description of the invention:

Embodiment, see attached Fig. 1 and 2, the stifled energy-saving film distiller of a kind of normal pressure anti-soil, comprise cold liquid storehouse 1, hydrothermal solution storehouse 2 and clean water sump 3, described cold liquid storehouse, hydrothermal solution storehouse and clean water sump are respectively circular cylindrical shell body structure, and external diameter is 400mm, described clean water sump be positioned at hydrothermal solution storehouse under, described cold liquid storehouse has two, for cold liquid storehouse a101 and cold liquid storehouse b102, cold liquid storehouse a is positioned at directly over hydrothermal solution storehouse, cold liquid storehouse b is positioned under clean water sump, between cold liquid storehouse a and cold liquid storehouse b, be connected together by 16 groups of condenser pipes 4, and condenser pipe passes from hydrothermal solution storehouse and clean water sump, condenser pipe is external diameter 15~25mm, thickness is the hollow corrosion resisting alloy plated film condenser pipe of 3~5mm, condenser pipe upper end is spirally connected or is weldingly fixed on cold liquid storehouse a, condenser pipe lower end is spirally connected or is weldingly fixed on cold liquid storehouse b.

Inherent each group condenser pipe periphery, described hydrothermal solution storehouse is provided with one group of PTFE microporous tube membrane 5, and between PTFE microporous tube membrane and condenser pipe, has formed annular passage 6; Described clean water sump is connected with annular passage.

On the sidewall of described cold liquid storehouse a, be communicated with a cold liquid inlet tube 7, on the sidewall of cold liquid storehouse b, be communicated with a cold liquid outlet 8, the cold liquid of normal temperature is flowed out and forms closed cycle from cold liquid outlet by condenser pipe from cold liquid inlet tube, and cold liquid exchanges heat absorption by the formation recuperation of heat that progressively heats up by cycling hot in condenser pipe, prevent thermal loss, reach energy-saving effect, on the lower sides in described hydrothermal solution storehouse, be communicated with a hydrothermal solution inlet tube 9, in the upper portion side wall in hydrothermal solution storehouse, be communicated with a hydrothermal solution outlet 10, hydrothermal solution inlet tube and hydrothermal solution outlet opposing parallel are arranged on the lower wall in hydrothermal solution storehouse and the upper side wall in hydrothermal solution storehouse, processed steam-water mixing liquid after heating is sent by pumping to hydrothermal solution storehouse, hydrothermal solution enters hydrothermal solution storehouse from hydrothermal solution inlet tube and flows out from hydrothermal solution outlet, in forming in hydrothermal solution storehouse, hydrothermal solution is wriggled, form like this closed cycle heating, ensure that hot solution is not less than 70 DEG C, PTFE microporous tube membrane is immersed in hydrothermal solution storehouse, condenser pipe is through in PTFE microporous tube membrane.

On the sidewall of described clean water sump, be communicated with a pure water inlet pipe 11, the diameter of pure water inlet pipe is 3~5mm.

Tubular type hydrophobic membrane prepared by preparation method that the preparation technology of described PTFE microporous tube membrane is that to adopt the patent No. be 2013103991139.

The utility model operation principle: the utility model can adopt in use three groups of film distillers are in series and carry out water purification extraction, as accompanying drawing 2, in its hydrothermal solution storehouse, be the processed steam-water mixing liquid that enters heating by pumping mode, and the steam-water mixing liquid of heat enters from hydrothermal solution inlet tube, flow out and form closed cycle heating system from hydrothermal solution outlet, hydrothermal solution temperature in first hydrothermal solution storehouse is not less than 70 DEG C, and ensures that the inside and outside temperature difference of each group condenser pipe is 25 DEG C~35 DEG C; In cold liquid storehouse a, logical supercooled liquid inlet tube enters normal temperature cooling fluid, cooling fluid enters in cold liquid storehouse b after by condenser pipe, and flow out from cold liquid outlet, under the mass transfer driving force that steam in hydrothermal solution storehouse forms in the temperature difference, contact with condenser pipe and be condensed into the liquid water purification that forms through PTFE microporous tube membrane, then water purification flows freely into clean water sump from annular passage, finally flows out and is collected from pure water inlet pipe.

In above description, a lot of details are set forth so that fully understand the utility model.But above description is only preferred embodiment of the present utility model, the utility model can be implemented to be much different from alternate manner described here, and therefore the utility model is not subject to the restriction of disclosed concrete enforcement above.Any skilled personnel are not departing from technical solutions of the utility model scope situation simultaneously, all can utilize method and the technology contents of above-mentioned announcement to make many possible variations and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Every content that does not depart from technical solutions of the utility model, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs to the utility model technology according to technical spirit of the present utility model.

Claims (5)

1. the stifled energy-saving film distiller of normal pressure anti-soil, it is characterized in that: comprise cold liquid storehouse, hydrothermal solution storehouse and clean water sump, described cold liquid storehouse, hydrothermal solution storehouse and clean water sump are respectively circular cylindrical shell body structure, described clean water sump be positioned at hydrothermal solution storehouse under, described cold liquid storehouse has two, for cold liquid storehouse a and cold liquid storehouse b, cold liquid storehouse a is positioned at directly over hydrothermal solution storehouse, cold liquid storehouse b is positioned under clean water sump, between cold liquid storehouse a and cold liquid storehouse b, be connected together by more than 15 groups condenser pipes, and condenser pipe passes from hydrothermal solution storehouse and clean water sump; Inherent each group condenser pipe periphery, described hydrothermal solution storehouse is provided with one group of PTFE microporous tube membrane, and between PTFE microporous tube membrane and condenser pipe, forms annular passage; Described clean water sump is connected with annular passage;
On the sidewall of described cold liquid storehouse a, be communicated with a cold liquid inlet tube, on the sidewall of cold liquid storehouse b, be communicated with a cold liquid outlet; On the lower sides in described hydrothermal solution storehouse, be communicated with a hydrothermal solution inlet tube, in the upper portion side wall in hydrothermal solution storehouse, be communicated with a hydrothermal solution outlet; On the sidewall of described clean water sump, be communicated with a pure water inlet pipe;
In described hydrothermal solution storehouse, be the processed steam-water mixing liquid that enters heating by pumping mode, and hydrothermal solution temperature in hydrothermal solution storehouse is not less than 70 DEG C, the inside and outside temperature difference of condenser pipe is 25 DEG C~35 DEG C; Logical supercooled liquid inlet tube enters normal temperature cooling fluid in cold liquid storehouse a, and cooling fluid enters in cold liquid storehouse b after by condenser pipe, and flows out from cold liquid outlet; In described clean water sump, collect the water purification freely flowing out from annular passage.
2. the stifled energy-saving film distiller of a kind of normal pressure anti-soil according to claim 1, is characterized in that: described condenser pipe is external diameter 15~25mm the hollow corrosion resisting alloy plated film condenser pipe that thickness is 3~5mm.
3. the stifled energy-saving film distiller of a kind of normal pressure anti-soil according to claim 1, is characterized in that: the diameter of described pure water inlet pipe is 3~5mm.
4. the stifled energy-saving film distiller of a kind of normal pressure anti-soil according to claim 1, is characterized in that: described hydrothermal solution inlet tube and hydrothermal solution outlet opposing parallel are arranged on the lower wall in hydrothermal solution storehouse and the upper side wall in hydrothermal solution storehouse.
5. the stifled energy-saving film distiller of a kind of normal pressure anti-soil according to claim 1, is characterized in that: described condenser pipe upper end is spirally connected or is weldingly fixed on cold liquid storehouse a above, and condenser pipe lower end is spirally connected or is weldingly fixed on cold liquid storehouse b.
CN201420465882.4U 2014-08-18 2014-08-18 The stifled energy-saving film distiller of a kind of normal pressure anti-soil CN203990317U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104147932A (en) * 2014-08-18 2014-11-19 湖州森诺膜技术工程有限公司 Normal-pressure pollution and plugging resistant energy-saving membrane distiller
CN105344249A (en) * 2015-11-09 2016-02-24 新奥科技发展有限公司 Adjusting device, and film distillation device and system
CN105363348A (en) * 2015-11-09 2016-03-02 新奥科技发展有限公司 Membrane distillation apparatus and membrane distillation system possessing membrane distillation apparatus
CN105642120A (en) * 2016-02-18 2016-06-08 新奥科技发展有限公司 Membrane distillation device
CN106215702A (en) * 2016-09-12 2016-12-14 天津沃驰科技有限公司 A kind of tubular type air gap membrane distillation assembly and distillating method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104147932A (en) * 2014-08-18 2014-11-19 湖州森诺膜技术工程有限公司 Normal-pressure pollution and plugging resistant energy-saving membrane distiller
CN105344249A (en) * 2015-11-09 2016-02-24 新奥科技发展有限公司 Adjusting device, and film distillation device and system
CN105363348A (en) * 2015-11-09 2016-03-02 新奥科技发展有限公司 Membrane distillation apparatus and membrane distillation system possessing membrane distillation apparatus
CN105642120A (en) * 2016-02-18 2016-06-08 新奥科技发展有限公司 Membrane distillation device
CN105642120B (en) * 2016-02-18 2019-01-04 新奥科技发展有限公司 Distillation device
CN106215702A (en) * 2016-09-12 2016-12-14 天津沃驰科技有限公司 A kind of tubular type air gap membrane distillation assembly and distillating method

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Address after: 313000 Huzhou City, Huzhou Province Economic and Technological Development Zone, Hung Fung Road, No. 1366, a layer of the first floor of the 6

Patentee after: Huzhou Sano Environmental Technology Co., Ltd.

Address before: 313012 Shuanglin town in Zhejiang province Huzhou city Nanxun District Zhao Dou Cun fish boat horn

Patentee before: HUZHOU SENNUO MEMBRANE TECHNOLOGY ENGINEERING CO., LTD.

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