CN210825509U - Sewage treatment evaporation plant - Google Patents
Sewage treatment evaporation plant Download PDFInfo
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- CN210825509U CN210825509U CN201921358931.3U CN201921358931U CN210825509U CN 210825509 U CN210825509 U CN 210825509U CN 201921358931 U CN201921358931 U CN 201921358931U CN 210825509 U CN210825509 U CN 210825509U
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Abstract
The utility model relates to a sewage treatment evaporation plant. The main structure of the device comprises a high-voltage electric field evaporation cylinder, an induced draft system, a condensation waste heat energy-saving recovery system and a plasma purification system. The utility model discloses only rely on discharge system just can accomplish the separation of water treatment and solid wastes material to the effect of jar body evaporimeter. The device has the advantages of simple structure, convenience in installation, high evaporation efficiency, good treatment effect, low operation cost, wide application range, environmental friendliness and energy conservation.
Description
Technical Field
The utility model relates to a water treatment facilities particularly, is a sewage treatment evaporation plant, belongs to energy-concerving and environment-protective field.
Background
At present, the treatment of sewage is always a hot problem. In particular, the industrial electroplating sewage has large water quantity, high concentration and heavy metal ions, thereby having large treatment difficulty. Most of the technologies adopted at present are multi-stage combined treatment of precipitation and purification, and the final discharge treatment is achieved through sedimentation, purification, liquid flow, precipitation, filtration and the like, or the concentrated collection is sent to a professional company for treatment. However, the sewage treatment equipment usually needs a large floor area or a high construction cost, and has complex process flow, high energy consumption and high operation cost. The popularization of the method in small and medium-sized enterprises has great limitation.
The conventional evaporator is mostly evaporated by heating and is evaporated by a plurality of falling film evaporation pipelines, the defects that ① is heated by heating pipes, the energy conversion efficiency is low, ② fine inner walls of the falling film evaporator are crystallized and scaled due to heated evaporation of sewage, so that the evaporator is seriously blocked, heat directly taken away by water vapor evaporated by ③ cannot be recycled, and the energy consumption is high.
Disclosure of Invention
The utility model discloses to foretell problem place, provide a new energy-efficient sewage treatment evaporation plant, this sewage treatment evaporation plant can effectively improve energy conversion efficiency, singly lean on this unit of high-tension electric field evaporation section of thick bamboo just can accomplish to handle multiple discarded object and different heavy metals and accomplish the processing of sewage and the separation of discarded object, can all-weather automatic operation. The device has the advantages of simple structure, convenience in installation, high evaporation efficiency, good treatment effect, low operation cost, wide application range, environmental friendliness and energy conservation.
The utility model adopts the technical scheme as follows:
a sewage treatment evaporation plant comprises a high-voltage electric field evaporation cylinder A, an induced draft system B, a condensation waste heat energy-saving recovery system C and a low-temperature plasma waste gas purifier D which are connected in a sectional manner from bottom to top;
the condensation and waste heat energy-saving recovery system C comprises a shell-and-tube heat exchanger C3, wherein one end of the shell-and-tube heat exchanger C1 is provided with a cold sewage inlet pipe C1, the other end of the shell-and-tube heat exchanger C2 is provided with a hot sewage outlet pipe C2, sewage circulates in a tube pass of the shell-and-tube heat exchanger C3, and a shell pass of the shell-and-tube heat exchanger is;
a hot sewage outlet pipe C2 of the condensation and waste heat energy-saving recovery system C is communicated to the interior of the high-voltage electric field evaporation cylinder A through a middle diversion pipeline and is communicated with a water inlet pipeline A1 of the high-voltage electric field evaporation cylinder A;
the high-voltage electric field evaporation cylinder A comprises a cylinder body, an annular water distribution pipe A2 which is designed by being attached to the inner wall of the cylinder body, and a discharge electrode A3 which is erected in the center of the cylinder body; a circle of water spraying holes with openings facing the inner wall of the cylinder are formed in the circumferential direction of the annular water distribution pipe A2, and sewage entering the high-voltage electric field evaporation cylinder A flows down along the inner wall of the cylinder by means of the water spraying holes of the annular water distribution pipe to form a water film;
the induced draft system B is positioned between the high-voltage electric field evaporation cylinder A and the condensation and waste heat energy-saving recovery system C, and adopts a centrifugal fan B1 to draft air to the evaporation cylinder, so that a vacuum-like high negative pressure environment is formed in the evaporation cylinder, the vapor pressure of an evaporation interface is reduced, and the evaporation efficiency is further improved.
The sewage treatment evaporation plant also comprises a control system E, wherein the control system E comprises a cabinet box E1 with a control panel E5, a display screen and an electric valve, a steam temperature sensor E2 and a steam flow sensor E3 which are arranged between the induced draft system B and the condensation and waste heat energy-saving recovery system C and used for collecting steam temperature, and a condenser temperature sensor E4 which is arranged between the condensation and waste heat energy-saving recovery system and the low-temperature plasma waste gas purifier and used for collecting the temperature after condensation; the steam temperature sensor E2, the steam flow sensor E3 and the condenser temperature sensor E4 transmit the collected related data to the control system E, so that the functions of real-time monitoring and regulation are realized;
the discharge electrode A3 is connected with a control system E through a power line A4, the control system E supplies electric energy to the discharge electrode A3, the voltage of the discharge electrode A3 is designed to be 100KV, and the current is 25-35 mA;
the cold sewage inlet pipe C1 is communicated with a sewage pool through a water pump C4, a pretreatment filter C5 is installed on the cold sewage inlet pipe C1, and the pretreatment filter C5 adopts a filter screen.
A metering pump A8 is installed on a water inlet pipeline A1 of the high-voltage electric field evaporation cylinder A, and the amount of water entering the evaporation cylinder is controlled through a metering pump A8.
In order to achieve better evaporation effect, the inner wall of the evaporation cylinder is additionally provided with a water-absorbing material A5, such as felt;
the high-voltage electric field evaporation cylinder A, the induced draft system B, the condensation waste heat energy-saving recovery system C and the low-temperature plasma waste gas purification system D are connected with one another through flanges;
the low-temperature plasma waste gas purification device D adopts the existing products sold in the market.
The bottom of the high-voltage electric field evaporation cylinder A is provided with a solid waste discharge port, the lower part of the solid waste discharge port is provided with a solid waste recovery box A9, and the solid waste deposited at the bottom of the cylinder can be discharged to the outside of the cylinder at regular intervals through the solid waste recovery box A9.
The utility model discloses a sewage treatment evaporation plant, the structure is simple and direct, simple to operate, evaporation efficiency is high, the treatment effect is good, the running cost is low, application scope is wide, energy-concerving and environment-protective. The high-voltage electric field evaporation cylinder, the induced draft system, the condensation waste heat energy-saving recovery system and the plasma purification system are connected in series in one system, sewage firstly enters the condensation waste heat energy-saving recovery system, the sewage after heat exchange in the condensation waste heat energy-saving recovery system enters the high-voltage electric field evaporation cylinder, a water film is formed on the inner wall of the cylinder body through the annular water distribution pipe, a discharge electrode at the center of the high-voltage electric field evaporation cylinder generates a high-frequency high-voltage alternating electric field, water molecules receive the energy of the alternating electric field and are converted into water vapor, the evaporation process and the evaporation efficiency of the sewage are greatly improved, the high-temperature water vapor generated by evaporation is sent to the waste heat energy-saving recovery system and the plasma purification system through the induced draft system at the top, and heat exchange. And part of the water vapor after heat exchange is condensed into water to be discharged, and part of the water vapor is treated by a low-temperature plasma waste gas purifier and then is discharged into the atmospheric environment.
Drawings
FIG. 1: the structure schematic diagram of the sewage treatment evaporation plant of the utility model;
in the figure, A, a high-voltage electric field evaporation cylinder, A1, a water inlet pipeline, A2, an annular water distributor, A3, a discharge electrode, A4, a power cord, A5, a water-absorbing material, A6, a support frame, A7, an electrode support, A8, a metering pump, B, an air induction system, B1, a centrifugal fan, B2, a condensate water discharge port, C, a condensation waste heat energy-saving recovery system, C1, a cold sewage water inlet pipe, C2, a hot sewage water outlet pipe, C3, a shell-and-tube heat exchanger, C4, a water pump, C5, a pretreatment filter, D, a low-temperature plasma waste gas purification system, E, a control system, E1, a cabinet box, E2, a steam temperature sensor, E3, a steam flow sensor, E4 and a condenser temperature sensor.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Example one
A sewage treatment evaporation plant mainly comprises a high-voltage electric field evaporation cylinder A, an induced draft system B, a condensation waste heat energy-saving recovery system C, a low-temperature plasma waste gas purifier D and a control system E; the high-voltage electric field evaporation cylinder A, the induced draft system B, the condensation waste heat energy-saving recovery system C and the low-temperature plasma waste gas purifier D are connected in a sectional mode and are connected with one another through flanges to form an integral vertical tank structure. The high-voltage electric field evaporation cylinder A is positioned at the bottommost part, and a support frame A6 for supporting the whole structure is arranged at the lower part of the high-voltage electric field evaporation cylinder A. And an induced draft system B, a condensation waste heat energy-saving recovery system C and a low-temperature plasma waste gas purifier D are sequentially connected upwards along the high-voltage electric field evaporation cylinder A. The condensation and waste heat energy-saving recovery system C adopts a shell-and-tube heat exchanger, one end of the shell-and-tube heat exchanger is provided with a cold sewage water inlet pipe C1, the other end of the shell-and-tube heat exchanger is provided with a hot sewage water outlet pipe C2, the cold sewage water inlet pipe C1 is communicated with a sewage pool through a water pump C4, a sewage filter screen is arranged on the cold sewage water inlet pipe C1, cold sewage enters the heat exchanger after being pre-filtered, is conducted into the high-voltage electric field evaporation cylinder A through the hot sewage water outlet pipe C2 and an intermediate diversion pipeline after heat exchange in the heat exchanger, and is communicated with a water inlet pipeline A; a water inlet pipeline A1 of the high-voltage electric field evaporation cylinder A is provided with a metering pump A8, and the amount of sewage entering the cylinder body is controlled by a metering pump A8; the high-voltage electric field evaporation cylinder A comprises a cylinder body, an annular water distribution pipe A2 which is designed by being attached to the inner wall of the cylinder body, and a discharge electrode A3 which is erected in the center of the cylinder body; a circle of water spraying holes with openings facing the inner wall of the barrel are formed in the circumferential direction of the annular water distribution pipe A2, and sewage entering the high-voltage electric field evaporation barrel A flows down along the inner wall of the barrel by means of the water spraying holes of the annular water distribution pipe A2 to form a water film; the discharge electrode A3 is arranged at the center of the cylinder through an electrode support A7, in order to achieve a better evaporation effect, a layer of felt is attached to the inner wall of the high-voltage electric field evaporation cylinder A, and by means of the water absorption of the felt, sewage flowing down from the annular water distribution pipe A2 is kept adsorbed on the inner wall of the cylinder for a long time, so that more water molecules receive the energy of the alternating electric field and are converted into water vapor. The induced draft system B is positioned between the high-voltage electric field evaporation cylinder A and the condensation and waste heat energy-saving recovery system C, and adopts a centrifugal fan B1 to draft air to the evaporation cylinder, so that a vacuum-like high negative pressure environment is formed in the evaporation cylinder, the vapor pressure of an evaporation interface is reduced, and the evaporation efficiency is further improved. The high-frequency high-voltage alternating electric field in the high-voltage electric field evaporation cylinder A converts water molecules into water vapor, under the negative pressure action of the top air inducing system, the high-temperature water vapor ascends to the condensation and waste heat energy-saving recovery system C at the top, cold sewage in the tube pass of the heat exchanger exchanges heat, a part of water vapor is condensed into water and then discharged through a condensed water discharge port B2 at the lower part of the air inducing system, the other part of water vapor continues to ascend to the low-temperature plasma waste gas purifier, and the water vapor is further purified by the low-temperature plasma waste gas purifier and then discharged to the atmospheric environment. The control system E comprises a cabinet box E1 with a control panel, a display screen and an electric valve, a steam temperature sensor E2 and a steam flow sensor E3 which are arranged between the induced draft system B and the condensing and waste heat energy-saving recovery system C and used for collecting steam temperature and collecting steam flow, and a condenser temperature sensor E4 which is arranged between the condensing and waste heat energy-saving recovery system and the low-temperature plasma waste gas purifier and used for collecting the temperature after condensation; the steam temperature sensor E2, the steam flow sensor E3 and the condenser temperature sensor E4 transmit the collected related data to the control system E, so that the functions of real-time monitoring and regulation are realized; the discharge electrode A3 is connected with a control system E through a power line A4, the control system E supplies electric energy to the discharge electrode A3, the voltage of the discharge electrode A3 is designed to be 100KV, and the current is 25-35 mA. The bottom of the high-voltage electric field evaporation cylinder A is provided with a solid waste discharge port, the lower part of the solid waste discharge port is provided with a solid waste recovery box A9, and the solid waste deposited at the bottom of the cylinder can be discharged to the outside of the cylinder at regular intervals through the solid waste recovery box A9.
The utility model discloses a sewage treatment evaporation plant utilizes shallow river effect, discharges through high-voltage electric field evaporation cylinder A's high-voltage alternating electric field, has destroyed the surface tension on sewage surface layer, and the required energy of hydrone evaporation significantly reduces, the evaporation rate greatly increased of hydrone. In addition, this application has still analyzed the influence to improving the evaporation capacity in the aspect of the wind pressure:
the energy required for heating 1KG of water from 25 ℃ to 100 ℃ (boiling point reached and completely vaporized) at one atmosphere (atmospheric pressure) is: 2257.9+313.5=2571.4 kJ;
the energy required for heating 1KG water from 25 ℃ to boiling (reaching boiling point and complete vaporization) under negative pressure is: 2293.6+255=2548.6 kJ;
compared with the prior art, the difference between the two is 22.8kJ/kg, about 10 percent, and the negative pressure environment has influence on evaporation.
The energy data for the same one ton of water evaporated is compared in the following table:
| evaporation apparatus | Electric consumption KW |
| Common evaporator | 210 |
| Falling film evaporator | 70 |
| The sewage treatment evaporation plant of this patent | 40-50 |
The high-efficiency energy-saving sewage treatment evaporation plant has the highest evaporation efficiency which can reach 50 to 60 times that of a common evaporator. The evaporation speed can be improved by more than 10 times by using the 100KV high-voltage electric field with the origin of 50-60 times, the evaporation speed can be improved by about one time by using the negative-pressure air draft environment, and the evaporation surface area is increased by 7-10 times by using the water film evaporation of the inner cylinder wall compared with the situation that one barrel of water is evaporated close to the water surface in a common evaporator.
The utility model discloses sewage treatment plant's technical effect lies in:
1. the high-frequency high-voltage alternating electric field generated by the electrodes is utilized to greatly improve the evaporation speed, so that water molecules receive the energy of the alternating electric field and are converted into water vapor.
2. The evaporation tank body is directly used as a falling film evaporator, water is uniformly formed on the inner wall of the barrel through the inner wall of the barrel, and the problem of low efficiency caused by scaling and blockage of a common falling film evaporation tube is solved.
3. The induced draft fan forms vacuum-like low pressure, negative pressure environment in to the evaporimeter, has reduced water and has been pressed to gaseous state interface steam from liquid, the effectual evaporation rate that has accelerated.
4. The heat in the evaporated steam is used for heating and conducting the sewage in the water inlet pipe in the evaporation barrel through the heat exchange pipe, so that the energy is effectively recycled, and the energy conservation and emission reduction are promoted.
Claims (9)
1. A sewage treatment evaporation plant is characterized by comprising a high-voltage electric field evaporation cylinder (A), an induced draft system (B), a condensation waste heat energy-saving recovery system (C) and a plasma purification system (D) which are connected in sections from bottom to top;
the condensation and waste heat energy-saving recovery system (C) comprises a shell-and-tube heat exchanger (C3) with one end provided with a cold sewage inlet pipe (C1) and the other end provided with a hot sewage outlet pipe (C2), sewage is circulated in the tube side of the shell-and-tube heat exchanger (C3), and the shell side of the shell-and-tube heat exchanger is communicated with an air induction system (B);
a hot sewage water outlet pipe (C2) of the condensation and waste heat energy-saving recovery system (C) is communicated to the inside of the high-voltage electric field evaporation cylinder (A) through a middle diversion pipeline and is communicated with a water inlet pipeline (A1) of the high-voltage electric field evaporation cylinder (A);
the high-voltage electric field evaporation cylinder comprises a cylinder body, an annular water distribution pipe (A2) which is designed by being attached to the inner wall of the cylinder body, and a discharge electrode (A3) which is erected in the center of the cylinder body; a circle of water spraying holes with openings facing the inner wall of the cylinder are formed in the circumferential direction of the annular water distribution pipe (A2), and sewage entering the high-voltage electric field evaporation cylinder (A) flows down along the inner wall of the cylinder body by means of the water spraying holes of the annular water distribution pipe to form a water film;
the induced draft system (B) is positioned between the high-voltage electric field evaporation cylinder (A) and the condensation and waste heat energy-saving recovery system (C), and a centrifugal fan (B1) is adopted to draft the evaporation cylinder, so that a vacuum-like high negative pressure environment is formed in the evaporation cylinder, the vapor pressure of an evaporation interface is reduced, and the evaporation efficiency is further improved.
2. The sewage treatment evaporation plant of claim 1,
the sewage treatment evaporation plant also comprises a control system (E), wherein the control system (E) comprises a cabinet box (E1) with a control panel, a display screen and an electric valve, a steam temperature sensor (E2) and a steam flow sensor (E3) which are arranged between the induced draft system (B) and the condensation and waste heat energy-saving recovery system (C) and are used for collecting steam temperature, and a condenser temperature sensor (E4) which is arranged between the condensation and waste heat energy-saving recovery system and the low-temperature plasma waste gas purifier and is used for collecting the temperature after condensation; the steam temperature sensor (E2), the steam flow sensor (E3) and the condenser temperature sensor (E4) transmit the collected related data to the control system (E), thereby realizing the functions of real-time monitoring and regulation.
3. The sewage treatment evaporation plant of claim 2,
the discharge electrode (A3) is connected with a control system (E) through a power line (A4), electric energy is supplied to the discharge electrode (A3) through the control system (E), the voltage of the discharge electrode (A3) is designed to be 100KV, and the current is 25-35 mA.
4. The sewage treatment evaporation plant of claim 2,
the cold sewage inlet pipe (C1) is communicated with the sewage tank through a water pump (C4), a pretreatment filter (C5) is installed on the cold sewage inlet pipe (C1), and a filter screen is adopted by the pretreatment filter (C5).
5. The sewage treatment evaporation plant of claim 1,
the inner wall of the cylinder body of the high-voltage electric field evaporation cylinder (A) is coated with a water-absorbing material.
6. The wastewater treatment evaporation plant of claim 5,
the water-absorbing material is felt.
7. The sewage treatment evaporation plant of claim 1,
the high-voltage electric field evaporation cylinder (A), the induced draft system (B), the condensation waste heat energy-saving recovery system (C) and the plasma purification system (D) are connected through flanges.
8. The sewage treatment evaporation plant of claim 1,
the bottom of the high-voltage electric field evaporation cylinder (A) is provided with a solid waste discharge port, the lower part of the solid waste discharge port is provided with a solid waste recovery box (A9), and the solid waste deposited at the bottom of the cylinder can be discharged to the outside of the cylinder at regular intervals through the solid waste recovery box (A9).
9. The sewage treatment evaporation plant of claim 1,
and a metering pump is arranged on a water inlet pipeline (A1) of the high-voltage electric field evaporation cylinder (A), and the amount of water entering the evaporation cylinder is controlled by the metering pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358931.3U CN210825509U (en) | 2019-08-21 | 2019-08-21 | Sewage treatment evaporation plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358931.3U CN210825509U (en) | 2019-08-21 | 2019-08-21 | Sewage treatment evaporation plant |
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| CN210825509U true CN210825509U (en) | 2020-06-23 |
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| CN201921358931.3U Active CN210825509U (en) | 2019-08-21 | 2019-08-21 | Sewage treatment evaporation plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482633A (en) * | 2019-08-21 | 2019-11-22 | 宋怡佳 | A kind of sewage treatment vaporising device |
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2019
- 2019-08-21 CN CN201921358931.3U patent/CN210825509U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110482633A (en) * | 2019-08-21 | 2019-11-22 | 宋怡佳 | A kind of sewage treatment vaporising device |
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