CN211311206U - Heat exchange system for industrial wastewater - Google Patents
Heat exchange system for industrial wastewater Download PDFInfo
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- CN211311206U CN211311206U CN201922308904.1U CN201922308904U CN211311206U CN 211311206 U CN211311206 U CN 211311206U CN 201922308904 U CN201922308904 U CN 201922308904U CN 211311206 U CN211311206 U CN 211311206U
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Abstract
The utility model relates to a heat exchange system for industrial waste water, this system include the hot-conductive device of profit and the oil water separator who is connected by connecting tube (7), the hot-conductive device of profit include polylith baffle (2), cold waste water entry (3), hot oil entry of thermal conductance (4) and profit mixture export (5), cold waste water entry (3) set up in the left side below of profit heat-conductive device, hot oil entry of thermal conductance (4) set up in the below left side of profit heat-conductive device, profit mixture export (5) set up in the right side below of profit heat-conductive device, baffle (2) divide into the lower baffle and the last baffle of alternate distribution. Compared with the prior art, the utility model has the advantages of difficult scale deposit, heat exchange speed are fast, and the exchange is thorough, promotes heat energy utilization efficiency.
Description
Technical Field
The utility model relates to an industrial wastewater handles the field, especially relates to a heat exchange system for industrial wastewater.
Background
In the field of highly difficult complex industrial wastewater treatment, particularly highly salt-containing wastewater, due to the complex water quality, high salt in the water is usually removed by an evaporation process after pretreatment. Evaporation processes such as multiple-effect, MVR or low temperature evaporation have high treatment cost per ton of water, require heating of raw water, and require cooling to crystallize salt after evaporation to remove water. In this link, how to effectively utilize heat to heat the wastewater, or effectively utilize heat when the hot wastewater is cooled is a key link for reducing the treatment cost of each ton of water.
The heat exchanger is the best equipment utilizing heat, and is divided into a cast iron type, a cylinder type, a steel type, a water storage type and a plate type according to the material and the type, so that the heat exchange efficiency is improved, the specific surface area of two-phase contact needs to be improved, but the higher the specific surface area is, the more easily the fouling is, and the fouling is difficult to wash. The existing heat exchange type and equipment can not meet the requirement of smooth and non-blocking operation of a system on the premise of ensuring high heat exchange rate in the existing complex high-salinity wastewater treatment.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is to provide a heat exchange system for industrial waste water that is difficult for scale deposit, heat exchange rate is fast in order to overcome the defect that above-mentioned prior art exists, and the exchange is thorough, promotes heat energy utilization efficiency.
The purpose of the utility model can be realized through the following technical scheme:
a heat exchange system for industrial wastewater comprises an oil-water heat conduction device and an oil-water separation device which are connected by a connecting pipeline, the oil-water heat conduction device comprises a plurality of partition plates, a cold waste water inlet, a heat conduction hot oil inlet and an oil-water mixture outlet, the cold waste water inlet is arranged below the left side of the oil-water heat conduction device, the heat conduction hot oil inlet is arranged on the left side below the oil-water heat conduction device, the oil-water mixture outlet is arranged below the right side of the oil-water heat conduction device, the partition plates are divided into lower partition plates and upper partition plates which are distributed at intervals, the lower end of the lower partition plate is connected with the bottom of the oil-water heat conduction device, the upper end of the upper partition plate is connected with the top of the oil-water heat conduction device, cold wastewater and heated hot oil simultaneously enter the oil-water heat conduction device, the cold wastewater enters from a cold wastewater inlet, and the heat conduction hot oil enters from a heat conduction hot oil inlet; the baffling loop formed by the partition plates realizes oil-water mixing and heat conduction through slow flow in the baffle, avoids oil-water emulsification effect caused by violent mixing,
the oil-water separation device comprises a hot waste water outlet, a water distributor, a central guide cylinder, a bin body partition plate and a cold heat conduction oil outlet, the water distributor is arranged at the tail part of the connecting pipeline, the oil-water mixture obtains a uniform and stable outflow rising flow state through the water distributor, the central guide cylinder is arranged above the water distributor, the oil-water mixture flowing out of the water distributor realizes oil-water separation under the action of the central guide cylinder, the inside of the central guide cylinder belongs to an oil-water separation functional area, so that an oil-water mixture is fully separated in the area, the density of heat conduction oil is small, the flow state is increased, the density of waste water is relatively large, the flow state is reduced, the hot waste water outlet is arranged below the left side of the oil-water separation device, the cold heat conduction oil outlet is arranged below the right side of the oil-water separation device, the bin body partition plate is vertically arranged on the right side of the oil-water separation device, and the lower end of the bin body partition plate is connected with the bottom of the oil-water separation device.
Furthermore, the upper end of the lower partition board is 5-10cm away from the top of the oil-water heat conduction device, the lower end of the upper partition board is 5-10cm away from the bottom of the oil-water heat conduction device, the distance between the lower partition board and the upper partition board is 10-15cm, and the retention time of the oil-water mixture in the oil-water heat conduction device is 0.5-2 min.
Furthermore, the mixer heat-insulating shell is installed outside the oil-water heat conduction device, so that heat insulation is realized, and the loss of heat energy is reduced.
Furthermore, the connecting pipeline extends from the mixture outlet to the inside of the oil-water separation device, adopts the shortest pipeline according to the actual placement of the equipment, and is provided with a heat insulation layer.
Further, the oil-water separation device still include foraminiferous baffle, this foraminiferous baffle one end links to each other with the inside left side of oil-water separation device, the other end links to each other with storehouse body baffle, foraminiferous baffle is divided into upper and lower two parts with oil-water separation device's the left side, the lower part is the sump, hot waste water flows downwards along the inner wall of center draft tube and the space between the section of thick bamboo wall outside and oil-water separation device, after the foraminiferous baffle, get into the sump, under the isolation of foraminiferous baffle, the flow state on upper portion can not influence the lower part sump in water body stability basically, can obtain purer hot waste water that deoils, accomplish the hot waste water of heating and separation, discharge through the hot waste water export, get into next processing.
Furthermore, the upper end of the bin body partition plate is 15-20cm away from the top of the oil-water separation device, the bin body partition plate divides the oil-water separation device into a left part and a right part, the right part is an oil bin, separated cold heat conduction oil enters the oil bin through the top of the bin body partition plate, and the cold heat conduction oil subjected to heat exchange cooling and separation is discharged from a cold heat conduction oil outlet and enters the next processing unit.
Furthermore, the residence time of the oil-water mixture in the central guide cylinder is 2-5min, the residence time of hot waste water in the water bin is 2-4min, and the residence time of cold heat conduction oil in the oil bin is 1-2 min.
Further, the distance between the cold heat conduction oil outlet and the bottom of the oil-water separation device is 30-40 cm.
Furthermore, the bottom of the oil-water separation device is also provided with a drain outlet, a drain valve is arranged on the drain outlet, partial waste water or oil-water mixture which is not completely separated is discharged through the drain outlet at the bottom, and a small amount of waste water or oil-water mixture can be prevented from entering the next treatment unit.
Furthermore, a separator heat-preservation shell is arranged outside the oil-water separation device, so that heat insulation is realized, and the loss of heat energy is reduced.
Compared with the prior art, the utility model has the following advantages;
(1) cold waste water and hot heat conduction oil enter the oil-water heat conduction device at the same time, and through a baffling loop formed by the partition plate (2), oil-water mixing and heat conduction are realized through slow flow in the baffle, so that complete mixing is realized, the heat exchange speed is high, the exchange is thorough, the utilization efficiency of heat energy is improved, the oil-water emulsification effect caused by violent mixing is avoided, and the problems of low heat transfer efficiency and the like caused by salt water scaling resistance due to complete mixing at the position are solved;
(2) the oil-water mixture is enabled to obtain a uniform and stable outflow rising flow state through the water distributor, the oil-water mixture flowing out of the water distributor is fully separated under the action of the central guide cylinder, hot wastewater flows downwards along the inner wall and the space between the outer side of the cylinder wall of the central guide cylinder and the oil-water separation device, and enters the water sump after passing through the perforated partition plate, and the separated cold heat conduction oil enters the oil sump through the top of the bin body partition plate;
(3) under the isolation of the partition plate with the holes, the stability of water in the lower water sump is not affected by the flow state of the upper part, which is beneficial to obtaining pure oil-removing hot wastewater;
(4) and partial wastewater or oil-water mixture which is not completely separated can be discharged through a drain outlet at the bottom, so that a small amount of wastewater or oil-water mixture can be prevented from entering the next treatment unit.
Drawings
FIG. 1 is a schematic view of a heat exchange system in an embodiment;
the reference numbers in the figures indicate: the device comprises a mixer heat-insulation shell 1, a partition plate 2, a cold waste water inlet 3, a heat conduction hot oil inlet 4, an oil-water mixture outlet 5, a hot waste water outlet 6, a connecting pipeline 7, a water distributor 8, a central guide cylinder 9, a separator heat-insulation shell 10, a partition plate 11 with holes, a water sump 110, a bin body partition plate 12, an oil sump 120, a cold heat-conduction oil outlet 13, a sewage discharge valve 14 and a sewage discharge outlet 15.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
A heat exchange system for industrial wastewater, as shown in figure 1, comprises an oil-water heat conduction device and an oil-water separation device which are connected by a connecting pipeline 7, wherein the oil-water heat conduction device comprises a plurality of partition plates 2 and a cold wastewater inlet 3, the device comprises a heat conduction hot oil inlet 4 and an oil-water mixture outlet 5, wherein a cold waste water inlet 3 is arranged below the left side of an oil-water heat conduction device, the heat conduction hot oil inlet 4 is arranged on the left side below the oil-water heat conduction device, the oil-water mixture outlet 5 is arranged below the right side of the oil-water heat conduction device, a partition plate 2 is divided into a lower partition plate and an upper partition plate which are distributed at intervals, the lower end of the lower partition plate is connected with the bottom of the oil-water heat conduction device, the upper end of the upper partition plate is connected with the top of the oil-water heat conduction device, cold waste water and heated hot oil simultaneously enter the oil-water heat conduction device, the; through a baffling loop formed by the partition plate 2, oil-water mixing and heat conduction are realized through slow flow, the oil-water emulsification effect caused by violent mixing is avoided, the upper end of the lower partition plate is 5-10cm away from the top of the oil-water heat conduction device, the lower end of the upper partition plate is 5-10cm away from the bottom of the oil-water heat conduction device, the distance between the lower partition plate and the upper partition plate is 10-15cm, and the retention time of the oil-water mixture in the oil-water heat conduction device is 0.5-2 min. The mixer heat preservation shell 1 is installed outside the oil-water heat conduction device, so that heat insulation is realized, and the loss of heat energy is reduced. The connecting pipeline 7 extends from the mixture outlet 5 to the inside of the oil-water separation device, and the connecting pipeline 7 adopts the shortest pipeline and is provided with a heat insulation layer according to the actual placement of the equipment.
The oil-water separation device comprises a hot waste water outlet 6, a water distributor 8, a central guide cylinder 9, a bin body partition plate 12 and a cold heat conduction oil outlet 13, wherein the water distributor 8 is arranged at the tail part of the connecting pipeline 7, an oil-water mixture obtains a uniform and stable outflow ascending flow state through the water distributor 8, the central guide cylinder 9 is arranged above the water distributor 8, the oil-water mixture flowing out of the water distributor 8 realizes oil-water separation under the action of the central guide cylinder 9, the inside oil-water separation functional area that belongs to of this central draft tube 9 makes oil-water mixture obtain the separation in this region fully, and the density of conduction oil is little, and the flow state rises, and the density of waste water is relative big, and the flow state descends, and hot waste water outlet 6 sets up in oil-water separation device's left side below, and cold conduction oil export 13 sets up in oil-water separation device's right side below, and silo partition 12 stands on oil-water separation device right side partially, and silo partition 12 lower extreme is connected with oil-water separation device bottom.
The oil-water separation device also comprises a perforated partition plate 11, one end of the perforated partition plate 11 is connected with the left side inside the oil-water separation device, the other end of the perforated partition plate is connected with a bin body partition plate 12, the left side of the oil-water separation device is divided into an upper part and a lower part by the perforated partition plate 11, the lower part is a water bin 110, hot wastewater flows downwards along the inner wall of the central guide flow cylinder 9 and the space between the outer side of the cylinder wall and the oil-water separation device, and enters the water bin 110 after passing through the perforated partition plate 11, under the isolation of the perforated partition plate 11, the stability of water in the lower water bin 110 cannot be basically influenced by the flow state of the upper part, the pure oil-removing hot wastewater can be obtained, the heating and separation of the hot. The upper end of the bin body partition plate 12 is 15-20cm away from the top of the oil-water separation device, the bin body partition plate 12 divides the oil-water separation device into a left part and a right part, the right part is an oil bin 120, separated cold heat conduction oil enters the oil bin through the top of the bin body partition plate 12, and the cold heat conduction oil subjected to heat exchange cooling and separation is discharged from a cold heat conduction oil outlet 13 and enters the next processing unit. The residence time of the oil-water mixture in the central guide cylinder 9 is 2-5min, the residence time of the hot waste water in the water bin 110 is 2-4min, and the residence time of the cold heat conduction oil in the oil bin 120 is 1-2 min. The distance between the cold heat conduction oil outlet 13 and the bottom of the oil-water separation device is 30-40 cm.
The bottom of the oil-water separation device is also provided with a drain outlet 15, a drain valve 14 is arranged on the drain outlet 15, partial waste water or oil-water mixture which is not completely separated is discharged through the drain outlet 15 at the bottom, and a small amount of waste water or oil-water mixture can be prevented from entering the next treatment unit. The oil-water separation device is also provided with a separator heat preservation shell 10, so that heat insulation is realized, and the loss of heat energy is reduced.
Claims (10)
1. The utility model provides a heat exchange system for industrial waste water, its characterized in that, this system include profit heat-transfer device and water oil separating device by connecting tube (7) connection, profit heat-transfer device include polylith baffle (2), cold waste water entry (3), thermal conductance hot oil entry (4) and profit mixture export (5), cold waste water entry (3) set up in profit heat-transfer device's left side below, thermal conductance hot oil entry (4) set up in profit heat-transfer device's below left side, profit mixture export (5) set up in profit heat-transfer device's right side below, baffle (2) divide into lower baffle and the last baffle of alternate distribution, the lower extreme of lower baffle link to each other with profit heat-transfer device bottom, the upper end of last baffle link to each other with profit heat-transfer device top.
2. The heat exchange system for industrial wastewater according to claim 1, wherein the upper end of the lower partition is 5-10cm away from the top of the oil-water heat transfer device, the lower end of the upper partition is 5-10cm away from the bottom of the oil-water heat transfer device, and the lower partition and the upper partition are spaced apart by 10-15 cm.
3. A heat exchange system for industrial waste water according to claim 1, characterised in that the heat transfer means is externally fitted with a mixer insulation casing (1).
4. Heat exchange system for industrial waste water according to claim 1, characterised in that the connection line (7) extends from the mixture outlet (5) all the way to the inside of the oil-water separation device.
5. The heat exchange system for industrial wastewater according to claim 1, wherein the oil-water separation device comprises a hot wastewater outlet (6), a water distributor (8), a central guide cylinder (9), a bin body partition plate (12) and a cold heat conduction oil outlet (13), the water distributor (8) is arranged at the tail of the connecting pipeline (7), the central guide cylinder (9) is arranged above the water distributor (8), the hot wastewater outlet (6) is arranged below the left side of the oil-water separation device, the cold heat conduction oil outlet (13) is arranged below the right side of the oil-water separation device, the bin body partition plate (12) is erected on the right side of the oil-water separation device, and the lower end of the bin body partition plate (12) is connected with the bottom of the oil-water separation device.
6. The heat exchange system for industrial wastewater according to claim 5, wherein the oil-water separator further comprises a perforated partition plate (11), one end of the perforated partition plate (11) is connected to the left side inside the oil-water separator, the other end of the perforated partition plate is connected to the bin body partition plate (12), the perforated partition plate (11) divides the left side of the oil-water separator into an upper part and a lower part, and the lower part is the water bin (110).
7. The heat exchange system for industrial wastewater according to claim 5, wherein the upper end of the bin body partition plate (12) is 15-20cm away from the top of the oil-water separation device, the bin body partition plate (12) divides the oil-water separation device into a left part and a right part, and the right part is the oil bin (120).
8. The heat exchange system for industrial wastewater according to claim 5, wherein the cold conduction oil outlet (13) is 30-40cm away from the bottom of the oil-water separation device.
9. The heat exchange system for industrial wastewater as claimed in claim 5, wherein the bottom of the oil-water separation device is further provided with a sewage draining outlet (15), and the sewage draining outlet (15) is provided with a sewage draining valve (14).
10. The heat exchange system for industrial wastewater according to claim 5, wherein the oil-water separation device is further provided with a separator heat preservation shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922308904.1U CN211311206U (en) | 2019-12-20 | 2019-12-20 | Heat exchange system for industrial wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922308904.1U CN211311206U (en) | 2019-12-20 | 2019-12-20 | Heat exchange system for industrial wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN211311206U true CN211311206U (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922308904.1U Active CN211311206U (en) | 2019-12-20 | 2019-12-20 | Heat exchange system for industrial wastewater |
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| Country | Link |
|---|---|
| CN (1) | CN211311206U (en) |
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- 2019-12-20 CN CN201922308904.1U patent/CN211311206U/en active Active
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