CN212610078U - Converter valve cooling tower effluent disposal system - Google Patents
Converter valve cooling tower effluent disposal system Download PDFInfo
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- CN212610078U CN212610078U CN202020500660.7U CN202020500660U CN212610078U CN 212610078 U CN212610078 U CN 212610078U CN 202020500660 U CN202020500660 U CN 202020500660U CN 212610078 U CN212610078 U CN 212610078U
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Abstract
The utility model particularly discloses a converter valve cooling tower effluent disposal system, a converter valve cooling tower effluent disposal system includes: the device comprises a cooling tower, a filtering device, a reverse osmosis device, a detection device, a preheating device, an evaporation heat exchange device, a condensing device and a recovery device; the cooling tower is connected with a filtering device through a raw water pump, the filtering device is connected with a reverse osmosis device, the reverse osmosis device is respectively connected with a detection device and a preheating device, the preheating device is respectively connected with a condensing device and an evaporation heat exchange device, the evaporation heat exchange device is connected with a recovery device, and the recovery device is connected with the cooling tower. A converter valve cooling tower effluent disposal system realized the closed circulation of the cooling water inorganic salt of converter valve outer closed cooling tower, can improve energy-conserving effect and quality of water greatly.
Description
Technical Field
The utility model relates to an industrial wastewater treatment technical field, concretely relates to converter valve cooling tower effluent disposal system.
Background
In the aspect of industrial wastewater treatment and recovery, the industrial wastewater is generally subjected to conventional chemical treatment and is directly discharged after reaching the discharge standard, but the industrial wastewater is not recycled to cause resource waste. Even if the heavy metal ions in the wastewater discharged up to the standard are completely removed, the proportion of soluble salts, non-heavy metal ions and other impurities in the water is still very high, the conductivity of the water is determined to be about 0.15-0.25 s/m, the property of the water is extremely close to that of seawater, and the water can only be used for flushing toilets and limited water landscapes and can not be used for greening for a long time.
With the stricter and stricter requirements of the country on water, enterprises need to further improve a wastewater treatment system and increase an advanced treatment device to reach the water reuse index, the prior art generally adopts the processes of precipitation, ultrafiltration, ion exchange and the like, but the conductivity of the treated water is reduced to 0.035-0.045 s/m, the treated water can only be reused in the rough washing process of the pretreatment of an industrial production line, the reuse rate of the reclaimed water can reach about 50-60%, and a lot of problems still exist in the actual wastewater treatment and reuse process.
Especially, the cooling waste water outside the converter valve is directly discharged or diluted and discharged at home, which causes great water resource pollution and waste and influences the life and production water safety of nearby residents. MVR evaporimeter is the device that carries out evaporative concentration to industrial waste water commonly used among the prior art, compares with traditional evaporimeter, and the MVR evaporimeter has the advantage of little difference in temperature heat transfer, and general inside and outside difference in temperature is 8~12 degrees, and the secondary steam of production can recycle after the compressor intensifies the pressure, energy saving and water resource.
However, the prior art treatment of industrial wastewater presents some problems: firstly, the MVR evaporator is directly utilized for treatment, so that blockage and equipment corrosion are easily caused; secondly, the treatment capacity is large and difficult to operate, and the treatment capacity is limited by equipment and technology; thirdly, the heat transfer coefficient is low and the energy consumption is large.
In order to solve the problem, the utility model provides a converter valve cooling tower effluent disposal system.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a converter valve cooling tower effluent disposal system is provided. The converter valve cooling tower wastewater treatment system realizes closed circulation of inorganic salt for cooling water of a converter valve outer closed cooling tower; can greatly improve the energy-saving effect and the water quality.
In order to solve the technical problem, the utility model provides a technical scheme does:
a converter valve cooling tower wastewater treatment system comprising: the device comprises a cooling tower, a filtering device, a reverse osmosis device, a detection device, a preheating device, an evaporation heat exchange device, a condensing device and a recovery device;
the cooling tower is connected with a filtering device through a raw water pump, the filtering device is connected with a reverse osmosis device, the reverse osmosis device is respectively connected with a detection device and a preheating device, the preheating device is respectively connected with a condensing device and an evaporation heat exchange device, the evaporation heat exchange device is connected with a recovery device, and the recovery device is connected with the cooling tower.
Preferably, the filtering device comprises: quartz sand filtering device, active carbon filtering device, bag type filtering device, ultrafiltration device;
the output end of the raw water pump is connected with a quartz sand filtering device, the quartz sand filtering device is connected with an active carbon filtering device, the active carbon filtering device is connected with a bag type filtering device, the bag type filtering device is connected with an ultrafiltration device, and the ultrafiltration device is connected with a reverse osmosis device. After removing suspended matters and microorganisms and reducing turbidity, the quartz sand filter device enters an active carbon filter device to remove peculiar smell, decolor and reduce COD; then enters a bag type filtering device and finally enters an ultrafiltration system for thoroughly filtering harmful substances such as bacteria, rust, colloid and the like in water.
Further preferably, the reverse osmosis apparatus comprises: the system comprises a first-stage reverse osmosis device, a first concentrated water tank, a second concentrated water tank and a circulating pump;
the output end of the ultrafiltration device is connected with a primary reverse osmosis device, the output end of the primary reverse osmosis device is respectively connected with a first concentrated water tank, a circulating pump and a detection device, and the first concentrated water tank is respectively connected with a second concentrated water tank, the circulating pump and the detection device; the second concentrated water tank is connected with the preheating device, and the circulating pump is connected with the detection device.
Further preferably, the detection device is connected with a clean water collection box, the clean water collection box is connected with a backwashing device, and the backwashing device comprises a clean water collection box, a cleaning pump, a washing water tank and a clean water filter;
the output end of the clear water collecting box is connected with the cleaning pump, and the output end of the cleaning pump is connected with the clear water filter. And the reverse osmosis device is used for desalting and concentrating inorganic salt in the wastewater.
Preferably, the evaporative heat exchange device comprises: the system comprises a forced circulation pump, a forced circulation evaporator, a compressor, a washing air pump, a separator and a discharge pump;
the preheating device is connected with the forced circulation evaporator through a forced circulation pump, the forced circulation evaporator is respectively connected with the condensing device and the separator, the separator is connected with the compressor through a washing air pump, and the compressor is connected with the forced circulation evaporator through a discharge pump. Preheating device's dense water gets into the forced circulation evaporimeter through the forced circulation pump, separate to the separator again, the flash steam gets into the compressor compression through the scrubbing pump, high temperature high pressure steam after the compression gets into the forced circulation evaporimeter and carries out the heat transfer, the latent heat condensation of steam gets off the heat energy that the high temperature distilled water that produces contains and passes through the pre-heater recovery again, preheat the intensification to the concentrated water of feeding, the a large amount of wastes of traditional evaporimeter flash steam has been avoided, the concentrated water feeding has acted as the effect of cooling water, a large amount of water resources are saved, simultaneously again make full use of the remaining heat energy of distilled water.
Further preferably, the condensing device comprises a condensed water pump and a condensed water tank;
the preheating device is connected with a condensate water tank through a condensate water pump, and the other end of the condensate water tank is connected with a forced circulation evaporator.
Preferably, the recycling device comprises: a filter tank, a crystallizer, a centrifugal dehydrator and a dryer;
the filter tank is respectively connected with the separator and the crystallizer, the crystallizer is connected with the centrifugal dehydrator, the centrifugal dehydrator is connected with the drier, and the drier is connected with the cooling tower.
Has the advantages that: the cooling water outside the converter valve is sterilized by adding inorganic salt and is recycled by filtering treatment, the MVR evaporative concentration technology is applied to the treatment of high-concentration wastewater discharged by cooling the outside of the converter valve, and the wastewater treatment capacity entering a terminal MVR evaporative crystallization system is reduced by wastewater filtering and reverse osmosis decrement technology. The inorganic salt obtained by MVR evaporation crystallization is beneficial to sterilization, on one hand, the recycling of the salt is realized, and on the other hand, the waste water recovery and the water resource waste reduction are achieved. A set of control system for improving the zero discharge of the converter valve external cooling sewage treatment is developed, and the effects of energy conservation and environmental protection of the converter valve external cooling sewage treatment are achieved through system integration and development of high-efficiency heat exchange equipment.
Drawings
FIG. 1 is a schematic structural diagram of a converter valve cooling tower wastewater treatment system according to the present invention;
FIG. 2 is a structural diagram of a converter valve cooling tower wastewater treatment system.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Example 1
As shown in figure 1, the utility model relates to a converter valve cooling tower 1 effluent disposal system, the system specifically be:
a converter valve cooling tower 1 wastewater treatment system comprising: the system comprises a cooling tower 1, a filtering device 2, a reverse osmosis device 3, a detection device 4, a preheating device 5, an evaporation heat exchange device 6, a condensing device 7 and a recovery device 8;
the cooling tower 1 is connected with the filtering device 2 through a raw water pump, the filtering device 2 is connected with the reverse osmosis device 3, the reverse osmosis device 3 is respectively connected with the detection device 4 and the preheating device 5, the preheating device 5 is respectively connected with the condensing device 7 and the evaporation heat exchange device 6, the evaporation heat exchange device 6 is connected with the recovery device 8, and the recovery device 8 is connected with the cooling tower 1.
As shown in fig. 2, the filter device 2 includes: a quartz sand filtering device 21, an active carbon filtering device 22, a bag type filtering device 23 and an ultrafiltration device 24;
the output end of the raw water pump is connected with a quartz sand filtering device 21, the quartz sand filtering device 21 is connected with an active carbon filtering device 22, the active carbon filtering device 22 is connected with a bag type filtering device 23, the bag type filtering device 23 is connected with an ultrafiltration device 24, and the ultrafiltration device 24 is connected with a reverse osmosis device 3.
The reverse osmosis device 3 comprises: a first-stage reverse osmosis 31 device 3, a first concentrated water tank 32, a second concentrated water tank 34 and a circulating pump 33;
the output end of the ultrafiltration device 24 is connected with a primary reverse osmosis 31 device 3, the output end of the primary reverse osmosis 31 device 3 is respectively connected with a first concentrated water tank 32, a circulating pump 33 and a detection device 4, and the first concentrated water tank 32 is respectively connected with a second concentrated water tank 34, the circulating pump 33 and the detection device 4; the second rich water tank 34 is connected with the preheating device 5, and the circulating pump 33 is connected with the detection device 4.
The detection device 4 is connected with a clean water collecting box 10, the clean water collecting box 10 is connected with a backwashing device, and the backwashing device comprises a clean water collecting box 10, a cleaning pump 11, a washing water box and a clean water filter 12;
the output end of the clean water collecting box 10 is connected with a cleaning pump 11, and the output end of the cleaning pump 11 is connected with a clean water filter 12.
The evaporation heat exchange device 6 comprises: a forced circulation pump 33, a forced circulation evaporator 61, a compressor 63, a washing air pump, a separator 62 and a discharge pump;
the preheating device 5 is connected with a forced circulation evaporator 61 through a forced circulation pump 33, the forced circulation evaporator 61 is respectively connected with a condensing device 7 and a separator 62, the separator 62 is connected with a compressor 63 through a washing air pump, and the compressor 63 is connected with the forced circulation evaporator 61 through a discharge pump.
The condensing device 7 comprises a condensed water pump and a condensed water tank 71;
the preheating device 5 is connected with a condensed water tank 71 through a condensed water pump, and the other end of the condensed water tank 71 is connected with the forced circulation evaporator 61.
The recovery device 8 comprises: a filter tank 81, a crystallizer 82, a centrifugal dehydrator, a dryer 84;
the filtering tank 81 is connected with the separator 62 and the crystallizer 82 respectively, the crystallizer 82 is connected with the centrifugal dehydrator, the centrifugal dehydrator is connected with the drier 84, and the drier 84 is connected with the cooling tower 1.
The working principle is as follows: inorganic salt is added into the cooling tower 1 to sterilize the wastewater, the sterilized wastewater is stored in the raw material tank 9, the wastewater in the raw material tank 9 enters the quartz sand filtering device 212 in the filtering device 2 through a raw water pump, after suspended matters and microorganisms are removed and the turbidity is reduced, the wastewater enters the activated carbon filtering device 222 to remove peculiar smell, decolor and reduce COD, and then enters the ultrafiltration system after passing through the bag-type filtering device 23 to thoroughly filter harmful substances such as bacteria, rust and colloid in the water.
The waste water after the completion of filtering enters into reverse osmosis unit 3, carry out desalination and concentration to the salinity in the waste water, at first enter into one-level reverse osmosis 31, produce partly fresh water and partly dense water, set up two dense water tanks simultaneously, the first dense water tank 32 of reverse osmosis unit 3 is being connected to detection device 4's one end, the other end is being connected to reverse osmosis unit 3 circulating pump 33, when the salinity index of first dense water tank 32 reaches the setting value, the dense water of first dense water tank 32 gets into second dense water tank 34. The detection device 4 is also connected with a discharge hole of the first-stage reverse osmosis 31, detects the fresh water generated by the reverse osmosis, sends the fresh water into the clear water collection box 10 for collection if various indexes of the fresh water reach standards, and the clear water collection box 10 is connected with an air suction pump and a clear water filter 12
The second concentrated water tank 34 is connected with the preheating device 5, the generated concentrated water enters the preheating device 5 from the second concentrated water tank 34 for heating, the concentrated water of the preheating device 5 enters the forced circulation evaporator 61 through the forced circulation pump 33 and then enters the separator 62 for separation, the top of the separator 62 is provided with a vent, and a three-way gas pipe is connected in the vent for conveying separated secondary steam; the exhaust port arranged at the top can also exhaust non-condensable gas; the bottom is provided with a liquid inlet and a liquid outlet, and the liquid outlet conveys the separated crystal mush. The secondary steam enters a compressor 63 through a washing air pump to be compressed, one end of the compressor 63 is connected with the separator 62, and the other end of the compressor is connected with the top of the forced circulation evaporator 61. High temperature high pressure steam after the compression gets into forced circulation evaporimeter 61 and carries out the heat transfer, and the latent heat condensation of steam gets off the heat energy that the high temperature distilled water that produces contains and passes through the pre-heater recovery again, preheats the intensification to the concentrated water of feeding, has avoided traditional evaporimeter secondary steam's a large amount of wastes, and the concentrated water feeding has acted as the effect of cooling water, saves the water resource in a large number, simultaneously make full use of the surplus heat energy of distilled water again. The condensed water tank 71 is connected with the preheating device 5 through a condensed water pump, the other end of the condensed water tank 71 is connected with the forced circulation evaporation heater, a security filter is arranged between a condensed water outlet of the forced circulation evaporator 61 and the condensed water tank 71 to prevent the condensed water from flowing backwards, and the condensed water of the forced circulation evaporator 61 is finally recycled through the condensed water tank 71 and then is finally supplied to the preheater as a heating source.
The concentrated water of the forced circulation evaporator 61 enters the separator 62 for gas-liquid separation when reaching the evaporation temperature, the steam at the outlet of the separator 62 enters the compressor 63 through the air washing pump, and the shell pass of the MVR evaporator still has the gas which is not condensed and is removed through the wiping device of the separator 62; the crystal slurry enters a crystallizer 82 for crystallization, and the mother liquor flows back to the forced circulation evaporator 61 through a forced circulation pump 33; the crystals enter a centrifugal dehydrator dryer 84 to obtain crystallized salt. The salt will be returned to the closed cooling tower 1 as a sterilizing growth substance, enabling a closed circulation of salt. Crystalline salt generated by evaporation of MVR, such as inorganic salt components of phosphate, calcium chloride, sodium chloride, magnesium chloride, potassium chloride and the like can return to the closed cooling tower 1, and addition of the inorganic salt components can respectively improve the yield of the bacteriocin and improve the capability of sterilizing and killing algae, thereby realizing closed circulation of salt. The utility model has low energy consumption, realizes the generation and the recycling of inorganic salt, and realizes the closed circulation of the inorganic salt for cooling water of the converter valve outer closed cooling tower 1; can improve energy-conserving effect and quality of water greatly, the fresh water process of production the online detector of quality of water detects the back of reaching standard and discharges into clear water collecting box 10 as domestic water, the water resource of recovery.
The technical scheme has the advantages that: controlling the amount of the treated wastewater, optimizing a chemical water treatment scheme, selecting high-efficiency salt according to water quality, and controlling the concentration multiple of circulating water.
Concentration control of discharged wastewater, optimization of membrane treatment system design, and entry of membrane system concentrated water into forced circulation evaporator 61 after reaching standards, thereby reducing the amount of evaporated water; the daily operation is managed, and the operation of the membrane system can reach the designed treatment capacity, so that the evaporation water amount is reduced.
Newly-added wastewater control, a membrane system cleaning process is designed in an optimized mode, an RO system cleaning process is designed in an optimized mode, new water is not added to the system cleaning process, and the system cleaning process enters the cleaning process, and the cleaning device comprises a cleaning box, a cleaning pump 11 and a clear water filter, so that the wastewater treatment amount is reduced.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A converter valve cooling tower effluent treatment system, comprising: the device comprises a cooling tower, a filtering device, a reverse osmosis device, a detection device, a preheating device, an evaporation heat exchange device, a condensing device and a recovery device;
the cooling tower is connected with a filtering device through a raw water pump, the filtering device is connected with a reverse osmosis device, the reverse osmosis device is respectively connected with a detection device and a preheating device, the preheating device is respectively connected with a condensing device and an evaporation heat exchange device, the evaporation heat exchange device is connected with a recovery device, and the recovery device is connected with the cooling tower.
2. The converter valve cooling tower wastewater treatment system according to claim 1, wherein the filtering device comprises: quartz sand filtering device, active carbon filtering device, bag type filtering device, ultrafiltration device;
the output end of the raw water pump is connected with a quartz sand filtering device, the quartz sand filtering device is connected with an active carbon filtering device, the active carbon filtering device is connected with a bag type filtering device, the bag type filtering device is connected with an ultrafiltration device, and the ultrafiltration device is connected with a reverse osmosis device.
3. The converter valve cooling tower wastewater treatment system of claim 2, wherein the reverse osmosis unit comprises: the system comprises a first-stage reverse osmosis device, a first concentrated water tank, a second concentrated water tank and a circulating pump;
the output end of the ultrafiltration device is connected with a primary reverse osmosis device, the output end of the primary reverse osmosis device is respectively connected with a first concentrated water tank, a circulating pump and a detection device, and the first concentrated water tank is respectively connected with a second concentrated water tank, the circulating pump and the detection device; the second concentrated water tank is connected with the preheating device, and the circulating pump is connected with the detection device.
4. The converter valve cooling tower wastewater treatment system according to claim 3, wherein the detection device is connected with a clean water collection box, the clean water collection box is connected with a backwashing device, and the backwashing device comprises a clean water collection box, a cleaning pump, a cleaning water box and a clean water filter;
the output end of the clear water collecting box is connected with the cleaning pump, and the output end of the cleaning pump is connected with the clear water filter.
5. The converter valve cooling tower wastewater treatment system of claim 1, wherein the evaporative heat exchange device comprises: the system comprises a forced circulation pump, a forced circulation evaporator, a compressor, a washing air pump, a separator and a discharge pump;
the preheating device is connected with the forced circulation evaporator through a forced circulation pump, the forced circulation evaporator is respectively connected with the condensing device and the separator, the separator is connected with the compressor through a washing air pump, and the compressor is connected with the forced circulation evaporator through a discharge pump.
6. The converter valve cooling tower wastewater treatment system according to claim 5, wherein the condensing device comprises a condensate pump and a condensate tank;
the preheating device is connected with a condensate water tank through a condensate water pump, and the other end of the condensate water tank is connected with a forced circulation evaporator.
7. The converter valve cooling tower wastewater treatment system according to claim 1, wherein the recycling device comprises: a filter tank, a crystallizer, a centrifugal dehydrator and a dryer;
the filter tank is respectively connected with the separator and the crystallizer, the crystallizer is connected with the centrifugal dehydrator, the centrifugal dehydrator is connected with the drier, and the drier is connected with the cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020500660.7U CN212610078U (en) | 2020-04-08 | 2020-04-08 | Converter valve cooling tower effluent disposal system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020500660.7U CN212610078U (en) | 2020-04-08 | 2020-04-08 | Converter valve cooling tower effluent disposal system |
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| CN212610078U true CN212610078U (en) | 2021-02-26 |
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| CN202020500660.7U Active CN212610078U (en) | 2020-04-08 | 2020-04-08 | Converter valve cooling tower effluent disposal system |
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| CN (1) | CN212610078U (en) |
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- 2020-04-08 CN CN202020500660.7U patent/CN212610078U/en active Active
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