CN107270740B - Cooling water integrated treatment system - Google Patents
Cooling water integrated treatment system Download PDFInfo
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- CN107270740B CN107270740B CN201710550302.XA CN201710550302A CN107270740B CN 107270740 B CN107270740 B CN 107270740B CN 201710550302 A CN201710550302 A CN 201710550302A CN 107270740 B CN107270740 B CN 107270740B
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- heat exchange
- heat
- tower
- pipeline
- water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
- F28D5/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation in which the evaporating medium flows in a continuous film or trickles freely over the conduits
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/06—Spray nozzles or spray pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/003—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus specially adapted for cooling towers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The invention discloses a cooling water comprehensive treatment system which comprises a heat exchange part, an electrolysis part and a heat recovery part. The heat exchange part comprises a heat exchange tower, a switching valve, a heat exchange pipeline part, a spray cooling part and the like; the electrolysis part comprises an electrolytic cell, a cathode plate, an anode plate and the like; the heat recovery part comprises a heat recovery tower, a recovery ring, a lower partition, an upper partition, a heat pipe and the like; the device also comprises connecting pipelines among the parts, matched water tanks, booster pumps and other parts. According to the invention, the cooling water is cooled by an atomization spraying method, so that the temperature of the cooling water can be rapidly reduced, and the cooling time of the cooling water is prolonged by alternately using a plurality of groups of heat exchange pipelines, so that the optimal cooling effect is realized. Meanwhile, calcium ions, magnesium ions and bacteria and algae in the cooling water can be removed, so that the purpose of purifying water quality is achieved. Finally, the invention can recycle the heat released by the cooling water and can improve the utilization rate of energy.
Description
Technical Field
The invention relates to the field of chemical equipment, in particular to a cooling water comprehensive treatment system.
Background
Industrial cooling towers are devices that utilize the contact of water and air to dissipate waste heat generated in industry or in refrigeration air conditioning by evaporation. The working principle is that the air which is dried (with low enthalpy value) enters the cooling tower from the air inlet net after being pumped by the fan; the cooling water molecules with high saturated steam partial pressure flow to the air with low pressure, and the hot and humid (high enthalpy) water is sprayed into the tower from the water sowing system. When water drops contact with air, on one hand, the direct heat transfer between the air and the water is realized, on the other hand, the pressure difference exists between the surface of water vapor and the air, the evaporation phenomenon is generated under the action of the pressure, the latent heat of evaporation is taken away, and the heat in the water is taken away, namely the evaporation heat transfer is realized, so that the aim of cooling is fulfilled.
The heat exchange pattern of the cooling tower is divided into two main types of natural ventilation and mechanical ventilation according to the condition that air enters the tower. The natural ventilation tower is convenient to maintain, saves power, and has larger capital investment. The air quantity and the air speed of the mechanical ventilation tower are controlled and regulated mechanically, so that the effect is stable, the air and water are distributed uniformly, the cooling efficiency is high, and the energy consumption is high.
Both types of cooling towers have this large scale application in practical production, but have their own drawbacks. The concentration of calcium ions, magnesium ions and the like of cooling water gradually rises in the circulating process, the concentration of impurities and bacteria and algae starts to rise, and the blockage and corrosion problems of auxiliary supporting facilities such as pipelines, valves and the like in the whole cooling system are also aggravated. Especially, huge heat and water are emitted to the atmosphere in the working process of the cooling tower, so that huge waste is caused.
Disclosure of Invention
The invention aims to provide a cooling water comprehensive treatment system capable of exchanging heat, improving water quality and recovering heat.
The invention adopts the following technical scheme: a cooling water comprehensive treatment system comprises a heat exchange part, an electrolysis part and a heat recovery part; the heat exchange part comprises a heat exchange tower, switching valves symmetrically and fixedly arranged at two ends of the heat exchange tower, a heat exchange pipeline part and a spray cooling part, wherein the heat exchange pipeline part and the spray cooling part are arranged in the heat exchange tower;
the switching valve comprises a valve body, four mechanical seals fixedly arranged on the valve body, a guide rod arranged on the mechanical seals, a valve plate fixedly arranged at one end of the guide rod and a reciprocating motion device fixedly arranged on the valve body; the output end of the reciprocating motion device is fixedly connected with the other end of the guide rod;
the heat exchange pipeline part comprises a left fixed plate fixedly arranged in the heat exchange tower, a right fixed plate fixedly arranged in the heat exchange tower and four groups of heat exchange pipelines; the heat exchange pipeline sequentially passes through the left fixing plate and the right fixing plate; the spray cooling part comprises a main spray pipe, a spray pipe fixedly arranged on the inner wall of the heat exchange tower and atomizing spray heads uniformly distributed on the spray pipe; the spray pipe is communicated with the main spray pipe; one end of the main spray pipe is positioned outside the heat exchange tower.
As a further solution: the electrolysis part comprises an electrolysis cell, lower support plates uniformly distributed in the electrolysis cell, cathode plates symmetrically fixed on two side surfaces of the lower support plates, cover plates hinged with the electrolysis cell, upper support plates uniformly distributed on the cover plates and anode plates symmetrically fixed on two side surfaces of the upper support plates.
As a further solution: the heat recovery part comprises a heat recovery tower, a recovery ring, a lower partition, an upper partition and heat pipes densely distributed on the lower partition, wherein the recovery ring, the lower partition and the upper partition are sequentially arranged on the inner wall of the heat recovery tower from bottom to top; the heat pipe passes through the upper partition.
As a further solution: the device also comprises a connecting pipeline A, a connecting pipeline B, a connecting pipeline C, a water tank and a booster pump; one end of the connecting pipeline A is in through connection with the top end of the heat exchange tower, and the other end of the connecting pipeline A is in through connection with the bottom of the heat recovery tower; one end of the connecting pipeline B is connected with the switching valve, and the other end of the connecting pipeline B is connected with the side wall of the electrolytic cell in a penetrating way; one end of the connecting pipeline C is in through connection with the side wall of the heat recovery tower, and the other end of the connecting pipeline C is in through connection with the water tank; the input end of the booster pump is connected with the water tank through a pipeline, and the output end of the booster pump is connected with the main spray pipe through a pipeline.
As a further solution: the heat exchange pipeline is obliquely arranged.
As a further solution: a baffle plate is arranged in the electrolytic cell, and a hole is formed in the middle part of the baffle plate.
As a further solution: the recovery ring is arranged obliquely upwards; the part of the recovery ring close to the inner wall of the heat recovery tower is provided with a hole.
As a further solution: the bottom of the heat recovery tower is a curved surface.
As a further solution: the bottom surface of the lower partition is a curved surface.
The invention has the following positive effects:
the invention has small volume and high heat exchange efficiency. The cooling water firstly enters the heat exchange tower through the switching valve and then enters the heat exchange pipeline. The heat exchange pipelines are four groups, and cooling water enters one group. The heat exchange pipeline is obliquely arranged in the heat exchange tower, the valve plate at the higher end is opened, and the valve plate at the lower end is closed. Cooling water enters the inclined heat exchange pipeline and fills the inclined heat exchange pipeline, and then a valve plate at the higher end of the heat exchange pipeline is closed. The spray cooling part also works simultaneously, the atomizing nozzle atomizes low-temperature water and then sprays the atomized low-temperature water onto the outer surface of the heat exchange tube, the surface temperature of the heat exchange tube is very high, and the water sprayed onto the heat exchange tube is rapidly evaporated to take away a large amount of heat. The four groups of heat exchange pipelines are filled in sequence, when cooling water enters the fourth group of heat exchange pipelines, the valve plate at the lower end of the first group of heat exchange pipelines is opened, water in the valve plate is discharged, after the water in the first group of heat exchange pipelines is discharged, the valve plate at the lower end of the first group of heat exchange pipelines is closed, then the valve plate at the higher end of the first group of heat exchange pipelines is opened, and new cooling water is injected into the valve plate at the higher end of the first group of heat exchange pipelines. Compared with the conventional cooling means, the cooling water in the invention can stay in the heat exchange pipeline for a longer time, and the cooling effect is better. And one of the four groups of heat exchange pipelines is always in a water discharge state, so that cooling water can not be interrupted.
The invention has the advantages of less water consumption and capability of effectively reducing the operation cost of enterprises in the cooling part. The cooling water is positioned in the heat exchange pipeline in the cooling process, heat is taken away through evaporation of water outside the heat exchange pipeline, and the cooling water is not contacted with the outside, so that complete internal circulation can be realized. Compared with a conventional open cooling tower, the cooling tower can save a large amount of water resources, is more environment-friendly, and can effectively reduce the operation cost in the cooling process.
The invention can also improve the quality of cooling water. The cooling water enters the electrolysis part after passing through the heat exchange part. The cathode plate and the anode plate on the cover plate in the electrolytic cell can form small electrolytic cells in the electrolytic cell one by one. After electrolysis, hydrogen ions, hydroxyl ions, hydrogen peroxide and other substances are generated. The hydrogen ions, hydrogen peroxide and the like enter the circulating system along with the cooling water, can dissolve attachments on the inner wall of the pipeline, dissolve the attachments in the cooling water, achieve the purpose of dissolving the attachments and dredging the circulating cooling system, and the substances such as the hydrogen ions, the hydrogen peroxide and the like have oxidability and can kill bacteria and algae in the cooling water. The hydroxide ions can be combined with alkaline ions such as calcium ions and magnesium ions to generate calcium hydroxide, magnesium hydroxide and the like, and the substances are unstable and generate carbonate, so that the solubility of the carbonate in water is very low, and the carbonate can be separated out from cooling water after reaching a certain concentration. The precipitated solid matters can fall below the partition board, the central part of the partition board is inclined downwards, and when water flow impacts, the water flow can downwards form impact along the holes in the middle of the partition board. The sediment at the bottom can move to the periphery of the baffle after being impacted, but because the part of the baffle, which is contacted with the inner wall of the electrolytic cell, is closed, the sediment can do Brownian motion in the semi-closed space formed by the baffle and the inner wall of the electrolytic cell, and can not return to cooling water. Therefore, calcium ions, magnesium ions and the like of the cooling water can be continuously removed, and the purposes of improving the water quality and prolonging the service life of equipment are achieved.
The invention can also recover the heat exchanged by the cooling water, further improve the utilization rate of energy and is more environment-friendly. The steam generated in the heat exchange tower enters the heat recovery tower along the connecting pipeline A. The steam enters from the bottom of the heat recovery tower, and the steam contacts with the lower partition after entering. The heat pipes are uniformly distributed on the lower partition, the bottoms of the heat pipes are contacted with the lower partition, and the tops of the heat pipes penetrate through the upper partition. The water vapor condenses on the bottom surface of the lower partition, changing from a gaseous state to a liquid state and releasing heat. The lower partition transfers heat to the heat pipe. The bottom of the heat pipe absorbs heat and transfers the heat to the top
The upper partition and the heat recovery tower form a closed space, and the space is filled with water. The top of the heat pipe passes through the upper partition and is soaked in water. The heat pipe transfers the heat released after the condensation of the water vapor at the lower partition bottom surface to water, and the process is repeated. When the temperature of the water rises to a certain temperature, the water is replaced, and the replaced hot water can be used by other departments requiring heat of enterprises. The water can be used as workshop production water, equipment heat preservation water, workshop heating water and the like, and can also be used as heating water of office areas in winter. This allows recovery of the waste energy originally discharged to the atmosphere for other uses. The recycled heat input production can reduce the workload of a heat supply boiler, and reduce the use amount of coal and the emission of carbon dioxide; the solar energy water heater can be used as heating water in office areas in winter, and saves large electric charge and equipment use charge.
The invention has high heat exchange efficiency. The bottom of the heat exchange tower is a curved surface, the middle is high, the periphery is low, and the shape of the lower partition plate is the same as that of the bottom of the heat exchange tower. The vapor enters the heat exchange tower from the bottom of the heat exchange tower and rises, and is condensed on the bottom surface of the lower partition plate after contacting the lower partition plate, and the vapor is changed from a gas state to a liquid state. The liquid water moves along the lower partition plate to the periphery and then moves downwards along the tower wall after flowing to the tower wall of the heat exchange tower. The liquid water can drop inevitably in the process of moving around, and after dropping, part of the liquid water can drop on the recovery ring, and part of the liquid water can drop on the bottom of the heat recovery tower. The part falling onto the recovery ring will move along the inclined recovery ring to the tower wall and fall from the holes in the recovery ring to the bottom of the tower; the portion falling directly from the lower partition to the bottom of the column will flow along the bottom of the column to the portion of the column wall that interfaces with the bottom of the column. Eventually substantially all of the condensate will collect in the tower wall-bottom interface and enter the tank along connection line B. The condensed water can not return to the heat exchange tower, and can not cause obstruction to the water vapor entering the heat exchange tower.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a spray cooling portion according to the present invention;
wherein: the device comprises a connecting pipeline A, a connecting pipeline B, a connecting pipeline C, a 4 water tank, a 5 booster pump, a 11 heat exchange tower, a 21 valve body, a 22 mechanical seal, a 23 guide rod, a 24 valve plate, a 25 reciprocating motion device, a 31 left fixed plate, a 32 right fixed plate, a 33 heat exchange pipeline, a 41 main spray pipe, a 42 spray pipe, a 43 atomizing nozzle, a 51 electrolytic cell, a 52 lower support plate, a 53 cathode plate, a 54 cover plate, a 55 upper support plate, a 56 anode plate, a 57 partition plate, a 61 heat recovery tower, a 62 recovery ring, a 63 lower partition plate, a 64 upper partition plate and a 65 heat pipe.
Detailed Description
The invention is further described below in connection with fig. 1-2.
The invention adopts the following technical scheme: a cooling water comprehensive treatment system comprises a heat exchange part, an electrolysis part and a heat recovery part; the heat exchange part comprises a heat exchange tower 11, switching valves symmetrically and fixedly arranged at two ends of the heat exchange tower 11, a heat exchange pipeline part and a spray cooling part, wherein the heat exchange pipeline part and the spray cooling part are arranged in the heat exchange tower 11;
the switching valve comprises a valve body 21, four mechanical seals 22 fixedly arranged on the valve body 21, a guide rod 23 arranged on the mechanical seals 22, a valve plate 24 fixedly arranged at one end of the guide rod 23 and a reciprocating device 25 fixedly arranged on the valve body 21; the output end of the reciprocating motion device 25 is fixedly connected with the other end of the guide rod 23;
the heat exchange pipeline part comprises a left fixed plate 31 fixedly arranged in the heat exchange tower 11, a right fixed plate 32 fixedly arranged in the heat exchange tower 11 and four groups of heat exchange pipelines 33; the heat exchange pipe 33 sequentially passes through the left fixing plate 31 and the right fixing plate 32; the spray cooling part comprises a main spray pipe 41, a spray pipe 42 fixedly arranged on the inner wall of the heat exchange tower 11 and atomizing nozzles 43 uniformly distributed on the spray pipe 42; the spray pipe 42 is connected with the main spray pipe 41 in a penetrating way; one end of the main spray pipe 41 is located outside the heat exchange tower 11.
As a further solution: the electrolysis part comprises an electrolysis cell 51, a lower support plate 52 uniformly distributed in the electrolysis cell 51, cathode plates 53 symmetrically fixed on two sides of the lower support plate 52, a cover plate 54 hinged with the electrolysis cell 51, an upper support plate 55 uniformly distributed on the cover plate 54 and anode plates 56 symmetrically fixed on two sides of the upper support plate 55.
As a further solution: the heat recovery part comprises a heat recovery tower 61, a recovery ring 62, a lower partition 63, an upper partition 64 and heat pipes 65, wherein the recovery ring 62, the lower partition 63 and the upper partition 64 are sequentially arranged on the inner wall of the heat recovery tower 61 from bottom to top; the heat pipe 65 passes through the upper partition 64.
As a further solution: the device also comprises a connecting pipeline A1, a connecting pipeline B2, a connecting pipeline C3, a water tank 4 and a booster pump 5;
one end of the connecting pipeline A1 is in through connection with the top end of the heat exchange tower 11, and the other end of the connecting pipeline A1 is in through connection with the bottom of the heat recovery tower 61; one end of the connecting pipeline B2 is connected with the switching valve, and the other end of the connecting pipeline B is connected with the side wall of the electrolytic cell 51 in a penetrating way; one end of the connecting pipe C3 is connected with the side wall of the heat recovery tower 61 in a penetrating way, and the other end of the connecting pipe C is connected with the water tank 4 in a penetrating way; the input end of the booster pump 5 is connected with the water tank 4 through a pipeline, and the output end is connected with the main spray pipe 41 through a pipeline.
As a further solution: the heat exchanging pipes 33 are arranged obliquely.
As a further solution: a separator 57 is provided in the electrolytic cell 51, and a hole is provided in the middle portion of the separator 57.
As a further solution: the recovery ring 62 is arranged obliquely upward; the recovery ring 62 is provided with holes at a portion close to the inner wall of the heat recovery tower 61.
As a further solution: the bottom of the heat recovery column 61 is curved.
As a further solution: the bottom surface of the lower partition 63 is a curved surface.
The left fixing plate 31 and the right fixing plate 32 are fixedly arranged on the inner wall of the heat exchange tower 11, wherein the left fixing plate 31 and the switching valve at the left end of the heat exchange tower 11 can form a closed space, and the right fixing plate 32 and the switching valve at the right end of the heat exchange tower 11 form a closed space. The cooling water enters the closed space at the left end of the heat exchange tower 11, and at this time, the 4 valve plates 24 are in contact with the corresponding heat exchange pipelines 33 (four groups) respectively, so that the cooling water cannot enter the heat exchange pipelines. When the closed space is filled with cooling water, the valve plate 24 corresponding to the first group of heat exchange pipes 33 moves backward, so that the left end of the heat exchange pipes 33 becomes an open end, the cooling water enters the first group of heat exchange pipes 33 and fills the first group of heat exchange pipes 33, and then the valve plate 24 moves forward, so that the open end of the first group of heat exchange pipes 33 is closed. The second, third and fourth sets of heat exchange tubes 33 are then filled once, with the same filling process, and will not be described again here.
The back and forth movement of the valve plate 24 is achieved by the reciprocating means 25 through the guide rod 23. The reciprocating means 25 may be a hydraulic station and a hydraulic rod or a combination of a motor and a screw. The hydraulic station presses hydraulic oil into a hydraulic rod, the hydraulic rod stretches to push the guide rod 23 to move forwards, and then the valve plate 24 is driven to move towards the direction approaching to the heat exchange pipeline 33; the hydraulic station pumps hydraulic oil out of the hydraulic rod, the hydraulic rod is shortened, the guide rod 23 is pushed to move backwards, and the valve plate 24 is driven to move in a direction away from the heat exchange pipeline 33. The working mode of the motor and the screw is the same as that of the hydraulic station and the hydraulic rod.
While the fourth group of heat exchanging pipes 33 is being filled with cooling water, the valve plate 24 on the right side of the first group of heat exchanging pipes 33 is opened, and the cooling water in the first group of heat exchanging pipes 33 flows out from the heat exchanging pipes 33. When the cooling water is purified, the valve plate 24 of the first group of heat exchange pipelines 33 is closed, the valve plate 24 at the left end is opened after the valve plate is closed, and the cooling water continues to flow in. In the process of cooling water inflow of the first group of heat exchange pipelines 33, the valve plate 24 at the right end of the second group of heat exchange pipelines 33 is opened, cooling water in the second group of heat exchange pipelines 33 flows out, after the outflow is completed, the valve plate 24 at the right end of the second group of heat exchange pipelines 33 is closed, and the valve plate 24 at the left end is opened. The valve plates 24 at both ends of the third and fourth sets of heat exchange tubes 33 repeat the process and form a cycle. That is, one of the four heat exchange tubes 33 is always discharging water and one is filling water.
The flow rate of each group of heat exchange pipes 33 is the same as the flow rate of the cooling water. Therefore, the cooling water can be ensured not to be interrupted in the cooling process.
The cooling of the cooling water is started simultaneously with the working process described above, and no difference exists. First, the booster pump 5 draws low-temperature water from the water tank 4 and sends it into the shower pipe 42 through the main shower pipe 41. The spray pipes 42 are densely arranged on both sides and on the top of the heat exchange tower 11, which is designed to bring the heat exchange tubes 33 as far as possible into the coverage of the atomizer head 43. The low-temperature water in the spray pipe 42 is sprayed out through the atomizing nozzles 43 uniformly distributed on the spray pipe, and the low-temperature water becomes tiny water drops to be suspended in the air after being atomized by the atomizing nozzles 43. When the water droplets contact the height Wen Waibi of the heat exchange tube 33, they rapidly gasify and remove a large amount of heat, and the temperature of the cooling water in the heat exchange tube 33 drops. The generated water vapor enters the heat recovery tower 61 through the connection pipe A1, and the cooling water having a reduced temperature enters the electrolytic cell 51 through the connection pipe B2.
The cooling water entering the electrolytic cell 51 fills the electrolytic cell 51. The anode plate 56 and the cathode plate 53 in the electrolytic cell 51 form one electrolytic cell after another at this time. The water is electrolyzed to generate hydrogen ions, hydroxide ions, hydrogen peroxide and the like.
The substances such as hydrogen ions and hydrogen peroxide can enter the circulating system along with cooling water, and the substances on the inner wall of the pipeline are dissolved to dissolve the substances in the cooling water, so that the purposes of dissolving the substances and dredging the circulating cooling system are achieved, and the substances such as hydrogen ions and hydrogen peroxide have oxidability and can kill bacteria and algae in the cooling water.
The hydroxide ions can be combined with alkaline ions such as calcium ions and magnesium ions to generate calcium hydroxide, magnesium hydroxide and the like, and the substances are unstable and generate carbonate, so that the solubility of the carbonate in water is very low, and the carbonate can be separated out from cooling water after reaching a certain concentration. The precipitated solid matters can fall below the partition board, the central part of the partition board is inclined downwards, and when water flow impacts, the water flow can downwards form impact along the holes in the middle of the partition board. The sediment at the bottom can move to the periphery of the baffle after being impacted, but because the part of the baffle, which is contacted with the inner wall of the electrolytic cell, is closed, the sediment can do Brownian motion in the semi-closed space formed by the baffle and the inner wall of the electrolytic cell, and can not return to cooling water.
The attachments on the inner walls of the pipelines and the valves in the circulation system are dissolved and then enter the cooling water, and after the cooling water enters the electrolytic cell 51 again, part of calcium, magnesium and other ions form precipitates, so that the concentration of the useless ions such as calcium, magnesium and the like in the circulation system can be maintained in a relatively stable range through continuous circulation.
The steam entering the heat recovery tower 61 rises along the heat recovery tower 61, contacts the lower partition 63, and then condenses on the bottom surface of the lower partition 63, and turns into a liquid state again. The water vapor condenses to release heat, and the temperature of the lower partition 63 increases. The heat pipes 65 are densely distributed on the lower partition 63, the bottom of the heat pipe 65 is contacted with the lower partition 63, the heat conducting medium in the heat pipe 65 absorbs heat and gasifies and ascends along the heat pipe 65, and when the gaseous heat conducting medium contacts with the top of the heat pipe 65 immersed in water above the upper partition 64, the heat release is changed into liquid again and returns to the bottom along the inner wall of the heat pipe 65. The water above the upper partition 64 absorbs the heat transferred by the heat pipe 65, and then the temperature rises, and the water reaches a certain temperature and is replaced.
The water vapor condenses on the bottom surface of the lower partition 63 to become liquid water, and then flows along the lower partition 63 to the inner wall of the heat recovery tower 61. The bottom surface of the lower partition 63 is curved, has a high middle and a low periphery, and can ensure that the condensed water flows to the inner wall of the heat recovery tower 61 to the maximum extent instead of falling onto the bottom surface of the heat recovery tower 61. The condensed water flows down the inner wall of the heat recovery tower 61 and finally flows onto the bottom surface of the heat recovery tower 61. Some of the condensed water on the lower partition 63 directly falls onto the bottom surface of the heat recovery tower 61, but the bottom surface of the heat recovery tower 61 is also curved, the middle is high, the periphery is low, and the condensed water on the bottom surface flows around the bottom surface. The condensed water falling down to the recovery ring 62 flows along the inclined recovery ring 62 to the junction of the heat recovery tower 61 and the recovery ring 62 and flows down along holes uniformly distributed at the junction.
The condensed water gathers around the bottom surface of the heat recovery tower 61 into a pool, and the recovery ring 62 is provided above the pool, so that the condensed water does not directly fall into the pool. Therefore, the condition that condensed water returns to the connecting pipeline A1 due to splashing after a large amount of water drops can be avoided.
Condensed water at the bottom of the heat recovery tower 61 enters the water tank 4 through the connection pipe C3.
Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications may be made to the technical solution described in the above embodiments or equivalents may be substituted for some technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (2)
1. A cooling water integrated treatment system is characterized in that: comprises a heat exchange part, an electrolysis part and a heat recovery part; the heat exchange part comprises a heat exchange tower (11), switching valves symmetrically and fixedly arranged at two ends of the heat exchange tower (11), a heat exchange pipeline part and a spray cooling part, wherein the heat exchange pipeline part and the spray cooling part are arranged in the heat exchange tower (11);
the switching valve comprises a valve body (21), four mechanical seals (22) fixedly arranged on the valve body (21), a guide rod (23) arranged on the mechanical seals (22), a valve plate (24) fixedly arranged at one end of the guide rod (23) and a reciprocating movement device (25) fixedly arranged on the valve body (21); the output end of the reciprocating motion device (25) is fixedly connected with the other end of the guide rod (23);
the heat exchange pipeline part comprises a left fixed plate (31) fixedly arranged in the heat exchange tower (11), a right fixed plate (32) fixedly arranged in the heat exchange tower (11) and four groups of heat exchange pipelines (33); the heat exchange pipeline (33) sequentially passes through the left fixing plate (31) and the right fixing plate (32); the spray cooling part comprises a main spray pipe (41), spray pipes (42) fixedly arranged on the inner wall of the heat exchange tower (11) and atomizing spray heads (43) uniformly distributed on the spray pipes (42); the spray pipe (42) is connected with the main spray pipe (41) in a penetrating way; the main spray pipe (41) penetrates through the tower wall of the heat exchange tower (11) from inside to outside;
the heat exchange pipeline (33) is obliquely arranged;
the electrolysis part comprises an electrolysis cell (51), a lower supporting plate (52) uniformly distributed in the electrolysis cell (51), cathode plates (53) symmetrically fixed on two side surfaces of the lower supporting plate (52), a cover plate (54) hinged with the electrolysis cell (51), an upper supporting plate (55) uniformly distributed on the cover plate (54) and anode plates (56) symmetrically fixed on two side surfaces of the upper supporting plate (55);
a partition plate (57) is arranged in the electrolytic cell (51), and a hole is formed in the middle part of the partition plate (57);
the heat recovery part comprises a heat recovery tower (61), a recovery ring (62), a lower partition (63), an upper partition (64) and heat pipes (65) densely distributed on the lower partition (63), wherein the recovery ring (62), the lower partition (63) and the upper partition (64) are sequentially arranged on the inner wall of the heat recovery tower (61) from bottom to top; the heat pipe (65) passes through the upper partition (64); the recovery ring (62) is arranged obliquely upwards; the part of the recovery ring (62) close to the inner wall of the heat recovery tower (61) is provided with a hole;
the bottom of the heat recovery tower (61) is a curved surface;
the bottom surface of the lower partition (63) is a curved surface.
2. A cooling water integrated treatment system according to claim 1, wherein: the device also comprises a connecting pipeline A (1), a connecting pipeline B (2), a connecting pipeline C (3), a water tank (4) and a booster pump (5); one end of the connecting pipeline A (1) is in through connection with the top end of the heat exchange tower (11), and the other end of the connecting pipeline A is in through connection with the bottom of the heat recovery tower (61); one end of the connecting pipeline B (2) is connected with the switching valve, and the other end of the connecting pipeline B is connected with the side wall of the electrolytic cell (51) in a penetrating way; one end of the connecting pipeline C (3) is in through connection with the side wall of the heat recovery tower (61), and the other end of the connecting pipeline C is in through connection with the water tank (4); the input end of the booster pump (5) is connected with the water tank (4) through a pipeline, and the output end is connected with the main spray pipe (41) through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710550302.XA CN107270740B (en) | 2017-07-07 | 2017-07-07 | Cooling water integrated treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710550302.XA CN107270740B (en) | 2017-07-07 | 2017-07-07 | Cooling water integrated treatment system |
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| CN107270740B true CN107270740B (en) | 2023-08-11 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288852A (en) * | 2015-06-09 | 2017-01-04 | 葛霖 | A kind of heat accumulating type cooling tower and progress control method thereof |
| WO2017004987A1 (en) * | 2015-07-09 | 2017-01-12 | 东南大学 | All condition operation pre-condensation heat tower device |
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2017
- 2017-07-07 CN CN201710550302.XA patent/CN107270740B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288852A (en) * | 2015-06-09 | 2017-01-04 | 葛霖 | A kind of heat accumulating type cooling tower and progress control method thereof |
| WO2017004987A1 (en) * | 2015-07-09 | 2017-01-12 | 东南大学 | All condition operation pre-condensation heat tower device |
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| CN107270740A (en) | 2017-10-20 |
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