Low-temperature normal-pressure evaporator

Abstract

The utility model relates to the field of high-concentration sewage zero-discharge treatment, in particular to a low-temperature normal-pressure evaporator which comprises an evaporation tank, a cavity is formed in the evaporation tank, a water pumping mechanism is arranged on the side wall of one side of the evaporation tank, an air pipe is arranged on the side wall of the other side of the evaporation tank, and a sewage containing cavity is formed in the bottom of the cavity of the evaporation tank. A hot water heat exchange mechanism is arranged at the position, located in the sewage containing cavity, of the evaporation tank body, filler is arranged in the middle of a cavity of the evaporation tank body, a water collector is arranged in the cavity of the evaporation tank body and located above the filler, a water collecting mechanism is arranged above the water collector, and a condensation pipe is arranged above the water collecting mechanism; the hot water heat exchange mechanism arranged in the evaporation tank body is matched with the condensation pipe, so that sewage is evaporated and filtered, sewage circulating filtration of the water pumping mechanism is matched, a good filtering effect is ensured, internal low temperature and normal pressure are ensured to realize evaporation and concentration of sewage, consumption of a large amount of energy is effectively prevented, and the energy consumption is reduced. And great loss of equipment is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to high concentration sewage zero discharge treatment technical field especially relates to a low temperature normal pressure evaporimeter. BACKGROUND

[0002] Sewage is the water discharged in production and life activities, usually contains various harmful substances, bacteria and viruses etc., loses the original use function, so sewage treatment is particularly important, and sewage treatment refers to the process that the waste water containing various organic matters, inorganic matters, suspended matters, microorganisms and other pollutants generated in cities, industries, rural areas etc. are handled and purified. Its purpose is to remove or reduce the harmful substances in the sewage to the standard that the environment can accept, to protect the quality of water resources and guarantee the health of the public.

[0003] Among many sewage treatment technologies, evaporation technology is concerned due to its high efficiency and thoroughness. Traditional evaporators usually need high temperature and high pressure conditions to realize the evaporation concentration of sewage, which not only consumes a large amount of energy, but also may cause great loss to the equipment and increase the operation cost. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a low temperature normal pressure evaporimeter.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A low temperature normal pressure evaporimeter, comprising an evaporation tank body, a cavity is formed in the evaporation tank body, a water pumping mechanism is arranged on one side wall of the evaporation tank body, and an air pipe is arranged on the other side wall, a sewage containing cavity is arranged at the bottom of the evaporation tank body cavity, a hot water heat exchange mechanism is arranged at the sewage containing cavity of the evaporation tank body, a filler is arranged in the middle of the evaporation tank body cavity, a water collector is arranged above the filler in the evaporation tank body cavity, a water collecting mechanism is arranged above the water collector, and a condenser pipe is arranged above the water collecting mechanism.

[0007] In addition, preferably, a salt discharge port is arranged at the bottom of the evaporation tank body in the sewage containing cavity, and a sewage inlet is arranged on the side wall of the evaporation tank body above the sewage containing cavity and away from the air pipe.

[0008] In addition, preferably, a fan is arranged on the top of the evaporation tank body, and the fan is connected with the air pipe and the evaporation tank body cavity.

[0009] Further, preferably, the hot water heat exchange mechanism comprises a first heat exchange pipe and a second heat exchange pipe, the first heat exchange pipe is arranged at the sewage cavity, the water inlet and the water outlet of the first heat exchange pipe are arranged on the outer wall of the evaporation tank, and the second heat exchange pipe is arranged inside the air pipe and close to the connection between the evaporation tank and the air pipe, and the water inlet and the water outlet of the second heat exchange pipe are arranged on the outer wall of the air pipe.

[0010] Further, preferably, the water pumping mechanism comprises a sewage outlet pipe, one end of the sewage outlet pipe is connected to the evaporation tank and communicates with the sewage cavity, a water pump is arranged at the other end of the sewage outlet pipe, and a sewage inlet pipe is connected to the other end of the water pump.

[0011] Further, preferably, the sewage inlet pipe is connected to the cavity of the evaporation tank at the other end of the water pump, and a spray pipe is arranged at the other end of the sewage inlet pipe, the spray pipe is arranged between the water collector and the filler.

[0012] Further, preferably, the water collecting mechanism comprises a high-level water collector, the high-level water collector is arranged above the water collector, a condensate outlet pipe is arranged at the water outlet end of the high-level water collector, the condensate outlet pipe is arranged on the evaporation tank, and the water outlet of the condensate outlet pipe is arranged outside the evaporation tank.

[0013] Further, preferably, the water inlet and the water outlet of the condensate pipe are arranged on the outer wall of the evaporation tank.

[0014] The beneficial effects of the present application are as follows: the hot water heat exchange mechanism arranged inside the evaporation tank cooperates with the condensate pipe to realize the evaporation and filtration of sewage, and the sewage is circulated and filtered by the water pumping mechanism, so that the filtration effect is ensured, the evaporation and concentration of the sewage are realized under the condition of low temperature and normal pressure, the consumption of a large amount of energy is effectively prevented, and the great loss of equipment is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 Fig. 1 is a structural schematic view of an evaporation tank;

[0016] Fig. 2 Fig. 1 is a structural schematic view of an evaporation tank;

[0017] In the figure: 1 evaporation tank, 11 sewage cavity, 12 salt discharge port, 2 air blower, 3 air pipe, 4 water pumping mechanism, 41 sewage outlet pipe, 42 water pump, 43 sewage inlet pipe, 44 spray pipe, 5 sewage inlet, 6 hot water heat exchange mechanism, 61 first heat exchange pipe, 62 second heat exchange pipe, 7 condensate pipe, 8 water collecting mechanism, 81 high-level water collector, 82 condensate outlet pipe, 9 water collector, 10 filler. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] With reference to Figs. 1-2 A low-temperature normal-pressure evaporator, comprising an evaporation tank body 1, a cavity is formed in the evaporation tank body 1, a water pumping mechanism 4 is arranged on one side wall of the evaporation tank body 1, a wind pipe 3 is arranged on the other side wall, a sewage accommodating cavity 11 is arranged at the bottom of the cavity of the evaporation tank body 1, a hot water heat exchange mechanism 6 is arranged at the sewage accommodating cavity 11 of the evaporation tank body 1, a filler 10 is arranged in the middle of the cavity of the evaporation tank body 1, a water collector 9 is arranged above the filler 10 in the cavity of the evaporation tank body 1, a water collecting mechanism 8 is arranged above the water collector 9, a condenser pipe 7 is arranged above the water collecting mechanism 8, and the condenser pipe 7 can effectively change the humid and hot saturated air into dry and cold air and clean water droplets.

[0020] The evaporation tank body 1 is provided with a salt discharging port 12 at the bottom of the sewage accommodating cavity 11, and a sewage inlet 5 is arranged on the side wall of the evaporation tank body 1 away from the wind pipe 3 and above the sewage accommodating cavity 11, and the sewage inlet 5 is used for conveying sewage into the evaporation tank body 1.

[0021] In addition, a fan 2 is arranged at the top of the evaporation tank body 1, the fan 2 communicates the wind pipe 3 and the cavity of the evaporation tank body 1, and the fan 2 is used for pumping air to the wind pipe 3.

[0022] Meanwhile, the hot water heat exchange mechanism 6 comprises a first heat exchange pipe 61 and a second heat exchange pipe 62, the first heat exchange pipe 61 is arranged at the sewage accommodating cavity 11, the water inlet and the water outlet of the first heat exchange pipe 61 are arranged on the outer wall of the evaporation tank body 1, the second heat exchange pipe 62 is arranged in the wind pipe 3 and close to the connecting position of the evaporation tank body 1 and the wind pipe 3, and the water inlet and the water outlet of the second heat exchange pipe 62 are arranged on the outer wall of the wind pipe 3, so that the first heat exchange pipe 61 and the second heat exchange pipe 62 can heat air and sewage.

[0023] In addition, the water pumping mechanism 4 comprises a sewage outlet pipe 41, one end of the sewage outlet pipe 41 is connected to the evaporation tank body 1 and communicates with the sewage accommodating cavity 11, a water pump 42 is arranged at the other end of the sewage outlet pipe 41, a sewage inlet pipe 43 is connected to the other end of the water pump 42 away from the sewage outlet pipe 41, and the water pump 42 is used for pumping sewage out.

[0024] The other end of the sewage inlet pipe 43 away from the water pump 42 is connected to the cavity of the evaporation tank body 1, and a spray pipe 44 is arranged at the other end of the sewage inlet pipe 43, the spray pipe 44 is arranged between the water collector 9 and the filler 10, and the spray pipe 44 is used for spraying sewage on the filler 10 below in a dispersed manner.

[0025] And, the water collecting mechanism 8 includes a high-level water collector 81 arranged above the water collector 9, and a condensate water outlet pipe 82 arranged at a water outlet end of the high-level water collector 81, the condensate water outlet pipe 82 being arranged on the evaporation tank body 1 and having an outlet arranged outside the evaporation tank body 1, and the high-level water collector 81 is used for collecting clean water droplets falling from the condensing pipe 7.

[0026] Meanwhile, the water inlet and the water outlet of the condensing pipe 7 are arranged on the outer wall of the evaporation tank body 1.

[0027] In the embodiment, the high-salt sewage is discharged into the sewage cavity 11 from the sewage inlet 5, and hot water flows in the first heat exchange pipe 61, so that the sewage in the sewage cavity 11 is subjected to heat exchange to be heated, and the water pump 42 pumps water through the sewage outlet pipe 41 and then sends the water into the spray pipe 44 through the sewage inlet pipe 43, the spray pipe 44 sprays the sewage, the sewage passes through the filler below, which is a substance for filtering water quality and increasing evaporation area, so that the impurities in the sewage are filtered and the liquid water in the sewage is changed into water vapor, and then the sewage flows into the sewage cavity 11 again, so that a cycle of the sewage is formed.

[0028] When the fan 2 works, the fan 2 cooperates with the air pipe 3 to realize circulation of air, and in the process, the first heat exchange pipe 61 and the second heat exchange pipe 62 are heated, the temperature is increased, the saturated water vapor pressure of the air in the evaporation tank body 1 is changed, that is, the amount of water vapor that can be contained in the air is increased, in the process of upward circulation of the air, the air passes through the water collector 9, the water collector 9 removes the small water droplets in the air, the air flows upward, the wet and hot saturated air meets the condensing pipe 7 and becomes small water droplets and dry and cold air, the dry and cold air is extracted by the fan 2, and the small water droplets are collected on the high-level water collector 81 and discharged by the condensate water outlet pipe 82, so that clean water after filtration is obtained, and the salt discharge port 12 is used for processing the salt block accumulated at the bottom.

[0029] In the embodiment, the hot water heat exchange mechanism 6 arranged in the evaporation tank body 1 cooperates with the condensing pipe 7 to realize evaporation and filtration of the sewage, and the sewage circulation filtration cooperates with the water pumping mechanism 4, so that the filtration effect is ensured, the internal low temperature and normal pressure are ensured to realize evaporation and concentration of the sewage, energy consumption is effectively prevented, and great damage to the equipment is avoided.

[0030] The above describes only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A low-temperature atmospheric evaporator comprising an evaporation tank (1), characterised in that, The evaporation tank body (1) is internally provided with a cavity, one side wall of the evaporation tank body (1) is provided with a water pumping mechanism (4), the other side wall is provided with an air pipe (3), the bottom of the cavity of the evaporation tank body (1) is provided with a sewage containing cavity (11), the evaporation tank body (1) is provided with a hot water heat exchange mechanism (6) at the sewage containing cavity (11), the middle of the cavity of the evaporation tank body (1) is provided with a filler (10), the cavity of the evaporation tank body (1) and above the filler (10) are provided with a water collector (9), above the water collector (9) is provided with a water collecting mechanism (8), above the water collecting mechanism (8) is provided with a condenser pipe (7).

2. The low-temperature atmospheric evaporator according to claim 1, characterized in that The evaporation tank body (1) is provided with a salt discharging port (12) at the bottom of the sewage containing cavity (11), and the evaporation tank body (1) is provided with a sewage inlet (5) on the side wall away from the air pipe (3) above the sewage containing cavity (11).

3. The low-temperature atmospheric evaporator according to claim 1, characterized in that, The top of the evaporation tank body (1) is provided with a fan (2), and the fan (2) is communicated with the air pipe (3) and the cavity of the evaporation tank body (1).

4. The low-temperature atmospheric evaporator according to claim 1, characterized in that, The hot water heat exchange mechanism (6) comprises a first heat exchange pipe (61) and a second heat exchange pipe (62), the first heat exchange pipe (61) is arranged at the sewage containing cavity (11), the water inlet and the water outlet of the first heat exchange pipe (61) are arranged on the outer wall of the evaporation tank body (1), the second heat exchange pipe (62) is arranged inside the air pipe (3) and close to the connection between the evaporation tank body (1) and the air pipe (3), and the water inlet and the water outlet of the second heat exchange pipe (62) are arranged on the outer wall of the air pipe (3).

5. The low-temperature atmospheric evaporator according to claim 1, characterized in that, The water pumping mechanism (4) comprises a sewage outlet pipe (41), one end of the sewage outlet pipe (41) is connected to the evaporation tank body (1) and communicated with the sewage containing cavity (11), a water pump (42) is arranged at the other end of the sewage outlet pipe (41), and a sewage inlet pipe (43) is connected to the other end of the water pump (42).

6. A low-temperature atmospheric evaporator according to claim 5, characterized in that The other end of the sewage inlet pipe (43) is connected to the cavity of the evaporation tank body (1), and a spray pipe (44) is arranged at the other end of the sewage inlet pipe (43), the spray pipe (44) is arranged between the water collector (9) and the filler (10).

7. The low-temperature, ambient-pressure evaporator of claim 1, wherein, The water collecting mechanism (8) comprises a high-level water collector (81), the high-level water collector (81) is arranged above the water collector (9), a condensate outlet pipe (82) is arranged at the water outlet end of the high-level water collector (81), the condensate outlet pipe (82) is arranged on the evaporation tank body (1), and the water outlet of the condensate outlet pipe (82) is arranged on the outer wall of the evaporation tank body (1).

8. The low-temperature, ambient-pressure evaporator of claim 1, wherein, The water inlet and the water outlet of the condenser pipe (7) are arranged on the outer wall of the evaporation tank body (1).

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