CN214299359U - MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment - Google Patents
MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment Download PDFInfo
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- CN214299359U CN214299359U CN202022473992.3U CN202022473992U CN214299359U CN 214299359 U CN214299359 U CN 214299359U CN 202022473992 U CN202022473992 U CN 202022473992U CN 214299359 U CN214299359 U CN 214299359U
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Abstract
The utility model provides a MVR energy-efficient evaporation treatment system for nanometer silver industrial waste water treatment, including the MVR evaporimeter, the feed end intercommunication of feed preheater and the board-like forced circulation evaporimeter of MVR and separator is passed through to the discharge end of MVR evaporimeter, and the steam of separator is given vent to anger the end and is passed through behind silk screen defroster, whirl board defroster and the board-like forced circulation evaporimeter secondary heat transfer of vapor compressor and MVR evaporimeter secondary intercommunication, the beneficial effects of the utility model are that: in order to meet the requirement that the compressed secondary steam can heat the material, a Roots type steam compressor with the saturated temperature rising to 20 ℃ is adopted in an evaporation system, the temperature is low, the temperature is 85 ℃ and the evaporation is mild, the pressure is increased from 47.3KPa to 105KPa, the pressure is increased to 58KPa, the discharge temperature is 95 ℃, the crystallization yield is 50kg/hr, the discharge density is saturated solution, the boiling point rising is less than or equal to 20, 20kg/hr of steam is consumed for preheating the material when one ton of water is evaporated, the power consumption of the pump is 24.4KW, and the power consumption of the compressor is 45 KW.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, concretely relates to energy-efficient evaporation treatment system of MVR for nanometer silver industrial wastewater handles.
Background
The MVR evaporator is the current internationally leading high-efficiency energy-saving evaporation system, and the principle is that the secondary steam generated by evaporation is pressurized and heated through a compressor, the enthalpy of the steam is improved and is used as a heat source to heat materials, so that cyclic evaporation is realized, the condensed hot water exchanges heat with raw materials, the heat is further recovered, the latent heat is fully utilized, the evaporation energy consumption is greatly reduced, and the operation cost is remarkably saved.
When the traditional MVR evaporator is applied to nano-silver industrial wastewater treatment, toxic substance enrichment in industrial wastewater still exists, the environment is caused, meanwhile, corrosive substances in the wastewater can also cause loss to traditional treatment equipment for a long time, and the requirements of energy conservation and source conservation cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a MVR energy-efficient evaporation treatment system for nanometer silver industrial waste water treatment aims at solving traditional MVR evaporimeter among the prior art when being applied to nanometer silver industrial waste water treatment, still has toxic material enrichment in industrial waste water, causes the environment to the environment, and corrosive substance also can cause the problem of loss to traditional treatment facility for a long time in the waste water simultaneously.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a MVR energy-efficient evaporation treatment system for nanometer silver industrial waste water treatment, includes and carries out the MVR evaporimeter that communicates with the charge pump, the discharge end of MVR evaporimeter passes through the feed end intercommunication of feed preheater with the separator of the board-like forced circulation evaporimeter of MVR, the steam end of giving vent to anger of separator is through vortex board defroster, silk screen defroster and vapor compressor and the board-like forced circulation evaporimeter secondary heat transfer back and MVR evaporimeter secondary intercommunication.
In order to make waste water treatment more high-efficient, as the utility model relates to an it is preferred, the board-like forced circulation evaporimeter of MVR includes and carries out the circulating pump that communicates with the feeding preheater discharge end, the play liquid end of circulating pump and the feed end intercommunication of main heat exchanger, the steam of main heat exchanger is given vent to anger the end and is communicate with the feed end of separator.
In order to make carry out secondary heat transfer and handle, conduct the utility model relates to an it is preferred, the steam inlet end of main heat exchanger and vapor compressor's the end intercommunication of giving vent to anger, the discharge end of main heat exchanger and the feed end intercommunication of separator.
In order to prolong the service life of the equipment, the rotor of the compressor of the steam compressor and the cavity of the overflowing part are made of bidirectional stainless steel materials.
In order to make the damage that has reduced the material and caused the compressor, as the utility model relates to an it is preferred, whirl board defroster and silk screen defroster all install in the steam end of giving vent to anger of separator.
In order to make processing system more simple and convenient and high-efficient in the use, as the utility model relates to an it is preferred, MVR evaporimeter, feeding pre-heater, circulating pump, main heat exchanger, silk screen defroster and vapor compressor all pass through PLC controller and external power supply electric connection.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the evaporation system in the utility model can realize the evaporation capacity of waste water of 0.5m3Hr, throughput 550m3The evaporation system adopts a roots type steam compressor with the saturation temperature rise of 20 ℃ to meet the requirement that the compressed secondary steam can heat the material, the temperature is low at 85 ℃ for mild evaporation, the pressure is increased from 47.3KPa to 105KPa, the pressure is increased to 58KPa, the discharge temperature is 95 ℃, the crystallization yield is 50kg/hr, the discharge density is saturated solution, the boiling point is increased to be less than or equal to 20, 20kg/hr of steam is consumed for preheating the material when one ton of water is evaporated, the power consumption of the pump is 24.4KW, and the power consumption of the compressor is 45 KW;
2) in the evaporation process of the system, when the material reaching the evaporation temperature starts to evaporate, the generated steam and the entrained micro liquid drops rise in the separator, and the entrained liquid drops pass through the spiral-flow plate demister and the wire mesh demister to ensure that the micro liquid drops (liquid drops less than or equal to 1 um) entrained in the secondary steam are separated, so that a good separation effect is achieved, the damage of the material to the compressor is greatly reduced, and the effluent quality of the distilled water is improved;
3) the fresh steam that does not need the boiler to produce reduces to the boiler investment and reduces the relevant risk of pressure vessel, and this evaporimeter only needs to use the electricity can evaporate, and its energy consumption does not need condenser condensation secondary steam simultaneously for about 60% energy-conservation of traditional evaporimeter, saves water resource and electric energy, adopts the poor evaporation of low temperature, reduces the scale deposit probability, and suitable heat-sensitive material evaporative concentration improves product quality.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow chart of the present invention.
In the figure: 1. an MVR evaporator; 2. a feed preheater; 3. a circulation pump; 4. a primary heat exchanger; 5. a separator; 6. a swirl plate demister; 7. a wire mesh demister; 8. a vapor compressor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a MVR energy-efficient evaporation treatment system for nanometer silver industrial waste water treatment, includes MVR evaporimeter 1 that carries out the intercommunication with the charge pump, and the discharge end of MVR evaporimeter 1 passes through the feed preheater 2 and the feed end intercommunication of the separator 5 of the board-like forced circulation evaporimeter of MVR, and the steam end of giving vent to anger of separator 5 is through vortex board defroster 6, silk screen defroster 7 and vapor compressor 8 and behind the board-like forced circulation evaporimeter secondary heat transfer of MVR and 1 secondary intercommunication of MVR evaporimeter.
In this embodiment: the MVR plate type forced circulation evaporator comprises a circulating pump 3 communicated with the discharge end of a feed preheater 2, the liquid outlet end of the circulating pump 3 is communicated with the feed end of a main heat exchanger 4, and the steam outlet end of the main heat exchanger 4 is communicated with the feed end of a separator 5.
Specifically, through the circulating pump 3 that sets up, use circulation ejection of compact technique, make the concentrate ejection of compact nothing than smooth and easy.
In this embodiment: the steam inlet end of the main heat exchanger 4 is communicated with the air outlet end of the steam compressor 8, and the discharge end of the main heat exchanger 4 is communicated with the feed end of the separator 5.
Specifically, the steam inlet end of the main heat exchanger 4 is communicated with the steam compressor 8, so that secondary heat exchange of steam is realized.
In this embodiment: the rotor of the compressor of the vapor compressor 8 and the cavity of the flow-through part are both made of bi-directional stainless steel.
Specifically, make vapor compressor 8 corrosion resisting property good, not corroded by secondary steam, ensure the stable safe operation of compressor, vapor compressor 8 is roots's compressor simultaneously, and its vapour chamber and oil tank part are favorable to overhauing equipment and prevent that lubricating oil from getting into the vapour chamber.
In this embodiment: the cyclone plate demister 6 and the wire mesh demister 7 are both arranged at the steam outlet end of the separator 5.
Specifically, through the whirl plate defroster 6 and the silk screen defroster 7 that set up, can effectually prevent that the liquid drop from smuggleing the phenomenon of feed liquid secretly, the mist in the separation gas has improved operating condition, optimizes the technology index, improves the secondary steam quality, reduces the equipment and corrodes to prolong the life of equipment, ensured equipment normal operating.
In this embodiment: MVR evaporimeter 1, feeding preheater 2, circulating pump 3, main heat exchanger 4, silk screen defroster 7 and vapor compressor 8 all pass through PLC controller and external power supply electric connection.
Particularly, the automatic control is carried out by utilizing the PLC controller, so that the treatment system can treat the sewage more efficiently.
The working principle comprises the following processes:
(1) the feeding process comprises the following steps:
firstly, raw liquid is sent to a feed preheater 2 through a feed pump to exchange heat with condensed water generated by an MVR evaporator 1;
secondly, the materials enter an MVR plate type forced circulation evaporator to exchange heat through secondary steam compressed by a steam compressor 8 after heat exchange, and the material liquid after heat exchange is pumped into a separator 5 to start evaporation in a forced circulation mode;
(2) an evaporation process:
firstly, when the material reaching the evaporation temperature begins to evaporate, the generated steam and the entrained micro liquid drops rise in the separator 5, and the entrained liquid drops pass through the spiral-flow plate demister 6 and the wire mesh demister 7 to ensure that the micro liquid drops (liquid drops less than or equal to 1 um) entrained in the secondary steam are separated, so that a good separation effect is achieved, the damage of the material to the steam compressor 8 is greatly reduced, and the effluent quality of the distilled water is improved;
secondly, the secondary steam after good separation is obtained and is compressed by a steam compressor 8, and the temperature and the pressure are increased;
get into separator 5 back waste water and pass through the continuous circulation of circulating pump 3, carry out the heat transfer with secondary steam on main heat exchanger 4, secondary steam condensate water gets into the distilled water buffer tank, and waste water is by, during MVR evaporimeter 1 was sent into to circulating pump 3, carries out the flash distillation in MVR evaporimeter 1.
(3) And (3) discharging flow:
circulating evaporation is carried out continuously through a circulating pump 3, when a preset evaporation concentration is reached, discharging is carried out through a PLC control system, and the material is pumped into the next stage through a discharging pump;
when the system discharges materials, the system automatically stops feeding, and after the system finishes discharging materials (the system only discharges part of material liquid each time), the PLC control system starts feeding to finish an evaporation process;
pumping the concentrated liquid into the single-effect system for continuous evaporation, and automatically condensing and discharging the non-condensable gas through the control system. Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a MVR energy-efficient evaporation treatment system for nanometer silver industrial waste water handles, includes MVR evaporimeter (1) that communicates with the charge pump, its characterized in that: the discharge end of MVR evaporimeter (1) passes through feed preheater (2) and the feed end intercommunication of MVR plate-type forced circulation evaporimeter's separator (5), the steam end of giving vent to anger of separator (5) passes through whirl board defroster (6), silk screen defroster (7) and vapor compressor (8) and behind MVR plate-type forced circulation evaporimeter secondary heat transfer with MVR evaporimeter (1) secondary intercommunication.
2. The MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment according to claim 1, characterized in that: the MVR plate type forced circulation evaporator comprises a circulating pump (3) communicated with the discharge end of the feeding preheater (2), the liquid outlet end of the circulating pump (3) is communicated with the feeding end of the main heat exchanger (4), and the steam outlet end of the main heat exchanger (4) is communicated with the feeding end of the separator (5).
3. The MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment according to claim 2, characterized in that: the steam inlet end of the main heat exchanger (4) is communicated with the air outlet end of the steam compressor (8), and the discharge end of the main heat exchanger (4) is communicated with the feed end of the separator (5).
4. The MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment according to claim 1, characterized in that: and the rotor of the compressor of the steam compressor (8) and the cavity of the overflowing part are both made of bidirectional stainless steel materials.
5. The MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment according to claim 1, characterized in that: and the swirl plate demister (6) and the wire mesh demister (7) are both arranged at the steam outlet end of the separator (5).
6. The MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment according to claim 1, characterized in that: MVR evaporimeter (1), feeding preheater (2), circulating pump (3), main heat exchanger (4), silk screen defroster (7) and vapor compressor (8) all pass through PLC controller and external power supply electric connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022473992.3U CN214299359U (en) | 2020-10-30 | 2020-10-30 | MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment |
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| CN202022473992.3U CN214299359U (en) | 2020-10-30 | 2020-10-30 | MVR high-efficiency energy-saving evaporation treatment system for nano-silver industrial wastewater treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656096A (en) * | 2022-05-05 | 2022-06-24 | 武汉中测联环境技术有限公司 | High-salt high-nitrogen wastewater treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114656096A (en) * | 2022-05-05 | 2022-06-24 | 武汉中测联环境技术有限公司 | High-salt high-nitrogen wastewater treatment device |
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