CN210904991U - High-efficient enrichment facility of low temperature evaporation - Google Patents
High-efficient enrichment facility of low temperature evaporation Download PDFInfo
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- CN210904991U CN210904991U CN201921691452.3U CN201921691452U CN210904991U CN 210904991 U CN210904991 U CN 210904991U CN 201921691452 U CN201921691452 U CN 201921691452U CN 210904991 U CN210904991 U CN 210904991U
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Abstract
The utility model discloses a high-efficient enrichment facility of low temperature evaporation belongs to waste water treatment technical field. The device comprises a water inlet pipe, an evaporation tank, a circulating pipe, a liquid discharge pipe, a heat exchange pipe set, a condensing tank, a first pipeline, a compressor, a second pipeline, an expansion valve, a third pipeline, a circulating water pump, a fourth pipeline, a vacuum generator and a distilled water drainage pipe; the heat exchange tube set is arranged in the evaporation tank, and each pipeline in the heat exchange tube set is provided with a radiating fin which is a metal thin plate provided with a plurality of sheet-shaped notches; the condensing tank comprises an outer cylinder, an inner cylinder and a cooling pipe group which are sequentially arranged from outside to inside, and the cooling pipe group is communicated with the evaporating tank; two ends of the first pipeline are respectively connected with the bottom of the inner cylinder and the top of the heat exchange tube group, and two ends of the second pipeline are respectively connected with the bottom of the heat exchange tube group and the top of the inner cylinder; the two ends of the third pipeline are respectively connected with the lower part of the outer barrel and the upper part of the outer barrel, and the two ends of the fourth pipeline are respectively connected with the bottom end of the cooling pipe group and the third pipeline. The utility model discloses the incrustation scale is difficult for producing to the device.
Description
Technical Field
The utility model relates to an evaporation concentration device, concretely relates to high-efficient enrichment facility of low temperature evaporation belongs to waste water treatment technical field.
Background
The national requirements for environmental protection are becoming stricter, and especially the requirements for the control of the processes of generating and treating hazardous wastes are becoming stricter. The waste emulsion is used as a hazardous waste, and has obvious negative effects on the quality of human health, water, soil and atmospheric environment, so that the proper treatment of the waste emulsion has important significance on the green continuous development of human health, environmental health and related production industry units.
The thermal evaporation technology separates the sewage into concentrated solution and distilled water meeting the discharge standard in a thermal distillation mode, has the advantages of small equipment floor area and simplicity and convenience in operation, can greatly reduce the treatment cost of the wastewater, and is widely applied to the treatment of the emulsion wastewater at present. However, the evaporation temperature of the evaporation equipment adopted by the thermal evaporation technology to the emulsion wastewater is high (100 ℃ to 120 ℃), the high-temperature evaporation can cause the equipment to have a fast scale generation speed, the equipment is easy to scale, the service life of the equipment is short, and the effluent quality is poor.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model provides a high-efficient enrichment facility of low temperature evaporation, the device can realize waste water evaporative concentration at low temperature, is difficult for producing the incrustation scale in the device, and the device goes out water quality of water good.
In order to realize the technical purpose, the technical proposal of the utility model is that:
a low-temperature evaporation high-efficiency concentration device comprises a water inlet pipe, an evaporation tank, a circulating pipe, a liquid discharge pipe, a heat exchange pipe set, a condensation tank, a refrigerant circulating system, a distilled water circulating system and a distilled water discharge pipe; the water inlet pipe is communicated with a liquid inlet arranged at the upper part of the evaporation tank; one end of the circulating pipe is communicated with a circulating liquid port which is arranged on the evaporation tank and is positioned below the liquid inlet, the other end of the circulating pipe is communicated with a liquid outlet which is arranged at the bottom of the evaporation tank, and a sewage circulating pump and a circulating valve are arranged on the circulating pipe; the liquid discharge pipe is communicated with the circulating pipe, and a liquid discharge valve is arranged on the liquid discharge pipe; the heat exchange tube group is arranged in the evaporation tank, the heat exchange tube group is a plurality of independent pipelines which are communicated at two end parts, each pipeline in the heat exchange tube group is provided with a radiating fin, and the radiating fin is a metal thin plate provided with a plurality of sheet-shaped notches; the condensation tank comprises an outer cylinder, an inner cylinder and a cooling pipe group which are sequentially arranged from outside to inside, the cooling pipe group is a plurality of independent pipelines which are communicated at two end parts, and the top end of the cooling pipe group is communicated with a steam outlet arranged at the top of the evaporation tank; the refrigerant circulating system comprises a first pipeline and a second pipeline, one end of the first pipeline is communicated with the bottom of the inner cylinder of the condensing tank, the other end of the first pipeline is communicated with the top end of the heat exchange tube group, a compressor is arranged on the first pipeline, one end of the second pipeline is communicated with the bottom end of the heat exchange tube group, the other end of the second pipeline is communicated with the top of the inner cylinder of the condensing tank, and a condenser and an expansion valve are arranged on the second pipeline; the distilled water circulating system comprises a third pipeline, a fourth pipeline and a vacuum generator, one end of the third pipeline is communicated with the lower part of the outer barrel, the other end of the third pipeline is communicated with the upper part of the outer barrel, a circulating water pump is arranged on the third pipeline, one end of the fourth pipeline is communicated with the bottom end of the cooling pipe group, the other end of the fourth pipeline is communicated with the third pipeline, and the vacuum generator is arranged at the intersection of the third pipeline and the fourth pipeline; the distilled water discharge pipe is communicated with the top of the outer cylinder of the condensing tank. The utility model discloses simple structure can realize waste water evaporation concentration at low temperature, is difficult for producing the incrustation scale in the device, and the device goes out water quality of water good. Furthermore, the utility model discloses an ingenious application refrigeration principle can save the demand to external energy, can make the device carry out high-efficient evaporative concentration to emulsion waste water through setting up the heat exchange tube of taking radiating fin.
Preferably, the sheet-shaped cuts are arranged in two rows on the metal thin plate, the two rows of sheet-shaped cuts are equal in number and paired one by one, the two sheet-shaped cuts in a pair respectively protrude obliquely towards the upper side and the lower side of the metal thin plate, and the two adjacent sheet-shaped cuts in the same row respectively protrude obliquely towards the upper side and the lower side of the metal thin plate. So set up, can make the emulsion waste water in the evaporating pot produce the turbulent flow in fin department to heat transmission between waste water with higher speed further accelerates the programming rate of waste water in the evaporating pot, improves waste water evaporative concentration's efficiency.
Preferably, the water inlet pipe is provided with a pretreatment filter for removing solid impurities in the wastewater.
Preferably, a membrane filtration system is arranged on the distilled water discharge pipe.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of a heat dissipation fin of the present invention;
reference numerals:
10. the system comprises a water inlet pipe 11, a pretreatment filter 20, an evaporation tank 21, a liquid level sensor 22, a temperature sensor 30, a circulating pipe 31, a sewage circulating pump 32, a circulating valve 40, a liquid discharging pipe 41, a liquid discharging valve 50, a heat exchange pipe group 51, a heat radiating fin 52, a sheet-shaped notch 60, a condensing tank 61, an outer cylinder 62, an inner cylinder 63, a cooling pipe group 71, a first pipeline 72, a second pipeline 73, a compressor 74, a condenser 75, an expansion valve 81, a third pipeline 82, a fourth pipeline 83, a circulating water pump 90, a distilled water discharging pipe 91 and a membrane filtering system
Detailed Description
With reference to fig. 1 to 2, a specific embodiment of the present invention is described in detail, but the present invention is not limited to the claims.
As shown in fig. 1 to 2, a low-temperature evaporation high-efficiency concentration device includes a water inlet pipe 10, an evaporation tank 20, a circulation pipe 30, a liquid discharge pipe 40, a heat exchange pipe group 50, a condensation tank 60, a refrigerant circulation system, a distilled water circulation system, and a distilled water discharge pipe 90;
the water inlet pipe 10 is communicated with a liquid inlet arranged at the upper part of the evaporation tank 20, and the water inlet pipe 10 is provided with a pretreatment filter 11 for removing solid impurities in the wastewater;
one end of the circulating pipe 30 is communicated with a circulating liquid port which is arranged on the evaporating pot 20 and is positioned below the liquid inlet, the other end of the circulating pipe 30 is communicated with a liquid outlet which is arranged at the bottom of the evaporating pot 20, and a sewage circulating pump 31 and a circulating valve 32 are arranged on the circulating pipe 30;
the liquid discharge pipe 40 is communicated with the circulating pipe 30, and a liquid discharge valve 41 is arranged on the liquid discharge pipe 40;
the heat exchange tube group 50 is arranged in the evaporation tank 20, the heat exchange tube group 50 is a plurality of independent pipelines which are communicated at two end parts, each pipeline in the heat exchange tube group 50 is provided with a heat radiation fin 51, the heat radiation fin 51 is a metal thin plate provided with a plurality of sheet-shaped notches 52, the sheet-shaped notches 52 are arranged in two rows on the metal thin plate, the two rows of sheet-shaped notches 52 are equal in number and are paired one by one, the two paired sheet-shaped notches 52 respectively protrude towards the upper side and the lower side of the metal thin plate in an inclined manner, and the two adjacent sheet-shaped notches 52 on the same row respectively protrude towards the upper side and the lower side of the;
the condensation tank 60 comprises an outer cylinder 61, an inner cylinder 62 and a cooling pipe group 63 which are sequentially arranged from outside to inside, the cooling pipe group 63 is a plurality of independent pipelines which are communicated at two end parts, and the top end of the cooling pipe group 63 is communicated with a steam outlet arranged at the top of the evaporation tank 20 through a bent pipe;
the refrigerant circulating system comprises a first pipeline 71 and a second pipeline 72, one end of the first pipeline 71 is communicated with the bottom of the inner cylinder 62 of the condensing tank 60, the other end of the first pipeline is communicated with the top end of the heat exchange tube set 50, a compressor 73 is arranged on the first pipeline 71, one end of the second pipeline 72 is communicated with the bottom end of the heat exchange tube set 50, the other end of the second pipeline is communicated with the top of the inner cylinder 62 of the condensing tank 60, and a condenser 74 and an expansion valve 75 are arranged on the second pipeline 72;
the distilled water circulating system comprises a third pipeline 81, a fourth pipeline 82 and a vacuum generator, wherein one end of the third pipeline 81 is communicated with the lower part of the outer cylinder 61, the other end of the third pipeline is communicated with the upper part of the outer cylinder 61, a circulating water pump 83 is arranged on the third pipeline 81, one end of the fourth pipeline 82 is communicated with the bottom end of the cooling pipe group 63, the other end of the fourth pipeline is communicated with the third pipeline 81, and the vacuum generator (not shown in the figure) is arranged at the junction of the third pipeline 81 and the fourth pipeline 82 and is used for keeping the vacuum degree in the steam tank within-96.5 Kpa to-95.5 KPa;
the distilled water discharge pipe 90 is communicated with the top of the outer cylinder 61 of the condensation tank 60, and the distilled water discharge pipe 90 is provided with a membrane filtration system 91.
Wherein, in order to monitor the liquid level and the temperature of the emulsion waste water in the evaporation tank, a liquid level sensor 21 and a temperature sensor 22 are also arranged in the evaporation tank.
The refrigerant circulation principle is as follows:
the compressor 73 compresses the gaseous refrigerant from the inner cylinder 62 into a high-temperature and high-pressure liquid refrigerant, and then the refrigerant flows into the heating pipe, and the liquid refrigerant in the heating pipe exchanges heat with the emulsified liquid wastewater in the evaporation tank 20, so that the temperature of the wastewater in the evaporation tank 20 is increased; the liquid refrigerant after heat exchange sequentially passes through the condenser 74 and the expansion valve 75, and under the throttling action of the expansion valve 75, the liquid refrigerant at medium temperature and high pressure is vaporized and converted into a gas refrigerant at low temperature and low pressure, and the gas refrigerant enters the inner cylinder 62, and exchanges heat with the distilled water in the cooling tube bank 63 and the outer cylinder 61 in the inner cylinder 62, so that the temperature of the distilled water in the cooling tube bank 63 and the outer cylinder 61 is reduced.
The distilled water circulation principle is as follows:
under the negative pressure (-96.5KPa to-95.5 KPa) and the heating action of the heating pipe, the emulsion wastewater in the evaporation tank 20 is quickly vaporized and evaporated at low temperature (about 37 ℃) to form water vapor, the water vapor is absorbed by the negative pressure and enters the cooling pipe group 63, exchanges heat with the liquid refrigerant in the inner tube 62 to form liquid distilled water, flows into the third pipeline 81 from the bottom end of the cooling tube group 63 through the fourth pipeline 82, under the action of the circulating water pump 83, the liquid distilled water enters the outer cylinder 61 from the upper part of the outer cylinder 61 and exchanges heat with the liquid refrigerant in the inner cylinder 62 to reduce the temperature again, then enters the outer cylinder 61 from the upper part of the outer cylinder 61 again from the bottom of the outer cylinder 61 through the third pipeline 81, and continuously cools circularly, thereby converting the high temperature steam into low temperature distilled water, and when the distilled water in the outer cylinder 61 is full, the distilled water enters the distilled water discharge pipe and is discharged after being treated by the membrane filtration system 91.
To sum up, the utility model has the advantages of it is following:
1. the utility model discloses a set up distilled water circulation system, through the continuous distilled water to in the condensate tank 60 of circulating water pump 83 circulate, when the quick vacuum generator that flows through of distilled water for the vacuum has been formed in the evaporating pot 20, when the vacuum degree reaches-96.5 Kpa, waste water reaches 30 degrees more and just can form steam in evaporating pot 20, need not to wait to just vaporize at 100 ℃, thereby can realize waste water evaporative concentration under low temperature (being less than 100 ℃), be difficult for producing the incrustation scale in the device, the device goes out water quality of water good.
2. The utility model discloses utilize the refrigeration principle ingeniously to get up with the abundant application of refrigerant liquefaction process and vaporization process, realized respectively to the intensification of emulsion waste water and to the cooling of distilled water, saved the demand to external energy.
3. The heat exchange tube with the heat radiating fins 51 can accelerate the heat exchange efficiency of the high-temperature liquid refrigerant in the evaporating pot 20, thereby accelerating the heating speed of the waste water in the evaporating pot 20 and improving the efficiency of waste water evaporation concentration; in addition, the sheet-shaped notches 52 arranged on the heat radiating fins 51 can not only increase the heat transfer area, but also can not block the relative flow of the waste water in the evaporation tank 20, thereby further improving the evaporation and concentration efficiency of the device on the waste water.
It should be understood that the above detailed description of the present invention is only for illustrative purposes and is not limited to the technical solutions described in the embodiments of the present invention. It will be understood by those skilled in the art that the present invention may be modified and equivalents may be substituted to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (4)
1. A low-temperature evaporation high-efficiency concentration device is characterized by comprising a water inlet pipe, an evaporation tank, a circulating pipe, a liquid discharge pipe, a heat exchange pipe set, a condensation tank, a refrigerant circulating system, a distilled water circulating system and a distilled water drainage pipe; the water inlet pipe is communicated with a liquid inlet arranged at the upper part of the evaporation tank; one end of the circulating pipe is communicated with a circulating liquid port which is arranged on the evaporation tank and is positioned below the liquid inlet, the other end of the circulating pipe is communicated with a liquid outlet which is arranged at the bottom of the evaporation tank, and a sewage circulating pump and a circulating valve are arranged on the circulating pipe; the liquid discharge pipe is communicated with the circulating pipe, and a liquid discharge valve is arranged on the liquid discharge pipe; the heat exchange tube group is arranged in the evaporation tank, the heat exchange tube group is a plurality of independent pipelines which are communicated at two end parts, each pipeline in the heat exchange tube group is provided with a radiating fin, and the radiating fin is a metal thin plate provided with a plurality of sheet-shaped notches; the condensation tank comprises an outer cylinder, an inner cylinder and a cooling pipe group which are sequentially arranged from outside to inside, the cooling pipe group is a plurality of independent pipelines which are communicated at two end parts, and the top end of the cooling pipe group is communicated with a steam outlet arranged at the top of the evaporation tank; the refrigerant circulating system comprises a first pipeline and a second pipeline, one end of the first pipeline is communicated with the bottom of the inner cylinder of the condensing tank, the other end of the first pipeline is communicated with the top end of the heat exchange tube group, a compressor is arranged on the first pipeline, one end of the second pipeline is communicated with the bottom end of the heat exchange tube group, the other end of the second pipeline is communicated with the top of the inner cylinder of the condensing tank, and a condenser and an expansion valve are arranged on the second pipeline; the distilled water circulating system comprises a third pipeline, a fourth pipeline and a vacuum generator, one end of the third pipeline is communicated with the lower part of the outer barrel, the other end of the third pipeline is communicated with the upper part of the outer barrel, a circulating water pump is arranged on the third pipeline, one end of the fourth pipeline is communicated with the bottom end of the cooling pipe group, the other end of the fourth pipeline is communicated with the third pipeline, and the vacuum generator is arranged at the intersection of the third pipeline and the fourth pipeline; the distilled water discharge pipe is communicated with the top of the outer cylinder of the condensing tank.
2. The low temperature evaporation high efficiency concentration device according to claim 1, wherein the sheet-like slits are arranged in two rows on the metal thin plate, the two rows are equal in number and paired one by one, two sheet-like slits in a pair are respectively projected obliquely toward the upper side and the lower side of the metal thin plate, and two adjacent sheet-like slits in the same row are projected obliquely toward the upper side and the lower side of the metal thin plate.
3. A low temperature evaporation high efficiency concentration device as claimed in claim 1, wherein the water inlet pipe is provided with a pre-treatment filter for removing solid impurities in the wastewater.
4. A low temperature evaporation high efficiency concentration device as claimed in claim 1, wherein said distilled water discharge pipe is provided with a membrane filtration system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921691452.3U CN210904991U (en) | 2019-10-10 | 2019-10-10 | High-efficient enrichment facility of low temperature evaporation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921691452.3U CN210904991U (en) | 2019-10-10 | 2019-10-10 | High-efficient enrichment facility of low temperature evaporation |
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| CN210904991U true CN210904991U (en) | 2020-07-03 |
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| CN201921691452.3U Active CN210904991U (en) | 2019-10-10 | 2019-10-10 | High-efficient enrichment facility of low temperature evaporation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114671477A (en) * | 2022-05-27 | 2022-06-28 | 深圳市家家分类科技有限公司 | Auxiliary heating method and related device |
| CN114715967A (en) * | 2022-06-06 | 2022-07-08 | 深圳市家家分类科技有限公司 | Method for controlling compressor power in a cryogenic vaporization system and related system |
-
2019
- 2019-10-10 CN CN201921691452.3U patent/CN210904991U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114671477A (en) * | 2022-05-27 | 2022-06-28 | 深圳市家家分类科技有限公司 | Auxiliary heating method and related device |
| CN114715967A (en) * | 2022-06-06 | 2022-07-08 | 深圳市家家分类科技有限公司 | Method for controlling compressor power in a cryogenic vaporization system and related system |
| CN114715967B (en) * | 2022-06-06 | 2022-09-20 | 深圳市家家分类科技有限公司 | Method for controlling compressor power in a cryogenic vaporization system and related system |
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Address after: 215126 Chengpu Road, Sheng Pu town, Suzhou Industrial Park, Suzhou, Jiangsu 18 Patentee after: Zhongxin Heshun environmental protection (Jiangsu) Co.,Ltd. Address before: No.18 Chengpu Road, Shengpu Town, Suzhou Industrial Park, Jiangsu Province Patentee before: JIANGSU HESHUN ENVIRONMENTAL PROTECTION Co.,Ltd. |