An MVR evaporator for sewage treatment

Abstract

The utility model discloses an MVR evaporator for sewage treatment, belonging to the technical field of MVR evaporators. The utility model comprises an MVR evaporator body, the left side of the MVR evaporator body is connected to a treatment box, the top of the treatment box is connected to a filter box, and a filter plate is fixedly connected inside the filter box. When the sewage is acidic, the sewage is transported to between the first partition and the second partition by a delivery pump, and the second nozzle is made to spray out an alkaline solution by a second water pump. The utility model drives the stirring rod to rotate by the rotation of the first motor, and then mixes the sewage with the alkaline solution until the second PH measuring instrument detects that the PH value of the sewage between the first partition and the second partition is about 7. The utility model transports the neutral sewage to the inside of the MVR evaporator body by the delivery pump, thereby preventing the sewage from corroding the inside of the MVR evaporator body. The structure of the utility model has the advantage of good corrosion resistance.

Description

Technical Field

[0001] The utility model belongs to the technical field of MVR evaporators, in particular to an MVR evaporator for sewage treatment. Background Art

[0002] MVR is an energy-saving technology that utilizes the secondary steam and its energy generated by the evaporation system itself to upgrade low-grade steam into a high-grade steam heat source through the mechanical work of the compressor. This cycle provides heat energy to the evaporation system, thereby reducing the demand for external energy.

[0003] In the Chinese patent with patent number CN201720315388.3, ​​an MVR sewage treatment device is disclosed. The patent describes that "the use of MVR technology can effectively reduce energy consumption, and the built-in cleaning system can effectively inhibit scaling and corrosion." However, the patent does not provide a process for adjusting the pH of sewage. The pH of sewage is mostly acidic or alkaline. When acidic or alkaline sewage is passed into the MVR evaporator, it will accelerate the corrosion inside the MVR evaporator, thereby destroying the normal function of the MVR evaporator and shortening its service life. In addition, the patent does not provide a process for eliminating odor. It only removes impurities in the sewage, but does not remove the odor in the sewage. The treated sewage is directly discharged and used, which has a strong odor, pollutes the environment, and is also easy to cause harm to the human body. Therefore, it is necessary to design and modify the MVR evaporator for sewage treatment to effectively prevent the phenomenon of poor corrosion resistance. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the purpose of the utility model is to provide an MVR evaporator for sewage treatment, which has the advantage of good corrosion resistance.

[0005] The utility model provides the following technical solutions: an MVR evaporator for sewage treatment, comprising an MVR evaporator body, the left side of the MVR evaporator body is connected to a treatment box, the left side of the top of the treatment box is connected to a filter box, a filter plate is fixedly connected to the inside of the filter box, a first partition and a second partition are respectively fixedly connected to the inside of the treatment box, an electric cylinder is fixedly connected to the left side of the treatment box, the output end of the electric cylinder extends to the inside of the treatment box and is fixedly connected to a first PH measuring instrument, the right side of the first partition and the right side of the second partition are both connected to a delivery pump, the top of the treatment box is fixedly connected to a storage box, and the A third partition is fixedly connected to the inside of the storage box, an acidic agent feed pipe and an alkaline agent feed pipe are respectively connected to the two sides of the top of the storage box, a first water pump and a second water pump are respectively connected to the two sides of the storage box, a first nozzle and a second nozzle are respectively fixedly connected to the top of the inner wall of the treatment box, a water outlet of the first water pump is connected to the first nozzle through a pipe, a water outlet of the second water pump is connected to the second nozzle through a pipe, the first nozzle and the second nozzle are staggered, the number of the first nozzle and the second nozzle are both several, and the first nozzle and the second nozzle are both located between the first partition and the second partition.

[0006] The beneficial effects of the utility model are as follows:

[0007] 1. When the sewage is acidic, the utility model uses a delivery pump to deliver the sewage to between the first partition and the second partition, and uses the second water pump to make the second nozzle spray out an alkaline solution. The utility model drives the stirring rod to rotate by rotating the first motor, thereby mixing the sewage and the alkaline solution until the second PH measuring instrument detects that the PH value of the sewage between the first partition and the second partition is about 7. The utility model uses the delivery pump to deliver neutral sewage to the inside of the MVR evaporator body, thereby preventing the sewage from corroding the inside of the MVR evaporator body. The structure of the utility model has the advantage of good corrosion resistance.

[0008] 2. In the present invention, through the arrangement of the stirring rod and the first motor, the operator can start the first motor to rotate and drive the stirring rod to rotate, thereby stirring the solution between the first partition and the second partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the structure of the utility model.

[0010] Figure 2 It is a front cross-sectional schematic diagram of the filter box structure of the utility model.

[0011] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0012] Figure 4 For this utility model Figure 1 Enlarged schematic diagram of the structure at point B in the middle. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] like Figures 1 to 4 As shown, the MVR evaporator for sewage treatment of this embodiment includes an MVR evaporator body 1, the left side of the MVR evaporator body 1 is connected to a treatment box 2, the left side of the top of the treatment box 2 is connected to a filter box 3, the inside of the filter box 3 is fixedly connected to a filter plate 4, the inside of the treatment box 2 is respectively fixedly connected to a first partition 7 and a second partition 8, the left side of the treatment box 2 is fixedly connected to an electric cylinder 5, the output end of the electric cylinder 5 extends to the inside of the treatment box 2 and is fixedly connected to a first PH measuring instrument 6, the right side of the first partition 7 and the right side of the second partition 8 are both connected to a delivery pump 9, the top of the treatment box 2 is fixedly connected to a storage box 12, the inside of the storage box 12 is fixedly connected to a third Partition 15, the two sides of the top of the storage box 12 are respectively connected with the acidic agent feeding pipe 13 and the alkaline agent feeding pipe 14, the two sides of the storage box 12 are respectively connected with the first water pump 16 and the second water pump 17, the top of the inner wall of the treatment box 2 is respectively fixedly connected with the first nozzle 23 and the second nozzle 24, the water outlet of the first water pump 16 is connected to the first nozzle 23 through a pipeline, the water outlet of the second water pump 17 is connected to the second nozzle 24 through a pipeline, the first nozzle 23 and the second nozzle 24 are staggered, the number of the first nozzle 23 and the second nozzle 24 are both several, and the first nozzle 23 and the second nozzle 24 are both located between the first partition 7 and the second partition 8.

[0015] refer to Figure 1 A stirring rod 10 is movably connected inside the processing box 2, a first motor 11 is fixedly connected to the bottom of the processing box 2, an output end of the first motor 11 is fixedly connected to the stirring rod 10, the stirring rod 10 is located between the first partition plate 7 and the second partition plate 8, and the stirring rod 10 is made of stainless steel.

[0016] In this embodiment, by providing the stirring rod 10 and the first motor 11 , the operator can start the first motor 11 to rotate and drive the stirring rod 10 to rotate, thereby stirring the solution between the first partition 7 and the second partition 8 .

[0017] refer to Figure 1 and Figure 2The inner wall of the filter box 3 is fixedly connected to the second motor 20 through a bracket, the output end of the second motor 20 is fixedly connected to a scraper frame 21, the scraper frame 21 is movably connected to the filter plate 4, the right side of the filter box 3 is connected to a collecting box 22, the front of the collecting box 22 is hinged with a cover plate, the surfaces of the first motor 11 and the second motor 20 are fixedly connected to protective covers, and the inner wall of the protective cover is fixedly connected to a heat-conducting rod, and the heat-conducting rod is movably connected to the first motor 11 and the second motor 20 respectively, and the protective cover is made of stainless steel.

[0018] In this embodiment, by configuring the second motor 20 , the scraper frame 21 , the collection box 22 and the cover plate, the operator can start the second motor 20 to rotate and drive the scraper frame 21 to rotate, thereby pushing the impurities accumulated on the top of the filter plate 4 into the collection box 22 .

[0019] refer to Figure 1 A second pH measuring instrument 18 is fixedly connected to the right side of the first partition plate 7 .

[0020] In this embodiment, the second pH measuring instrument 18 is provided to detect the pH of the mixed solution.

[0021] refer to Figures 1 to 3 A controller is fixedly connected to the left side of the processing box 2, and the controller is signal-connected to the first PH meter 6, the second PH meter 18, the first water pump 16 and the second water pump 17 respectively.

[0022] In this embodiment, the controller is set to facilitate the operator to control the start and stop of the first pH meter 6, the second pH meter 18, the first water pump 16 and the second water pump 17.

[0023] refer to Figure 1 An activated carbon adsorption plate 19 is movably connected inside the processing box 2, and the back side of the activated carbon adsorption plate 19 extends to the back side of the processing box 2 and is fixedly connected to a handle, and the surface of the handle is provided with anti-slip grooves, and the number of anti-slip grooves is several, and the anti-slip grooves are evenly distributed on the surface of the handle.

[0024] In this embodiment, the activated carbon adsorption plate 19 is provided to adsorb, purify and remove odor from the solution.

[0025] The utility model pours sewage into the filter box 3, and then removes impurities through the filter plate 4, and the sewage accumulates on the left side of the first partition 7. Then the operator starts the electric cylinder 5 to extend or contract, thereby driving the first pH measuring instrument 6 to move left and right, and then measures the pH of the solution on the left side of the first partition 7. For example, when the sewage is acidic, the operator can start the delivery pump 9 to deliver the sewage to between the first partition 7 and the second partition 8. The utility model uses the second water pump 17 to make the second nozzle 24 spray out an alkaline solution. The utility model drives the stirring rod 10 to rotate by rotating the first motor 11, and then mixes the sewage with the alkaline solution until the second pH measuring instrument 18 detects that the pH value of the sewage between the first partition 7 and the second partition 8 is about 7. The utility model uses the delivery pump 9 to deliver neutral sewage to the inside of the MVR evaporator body 1, thereby preventing the sewage from corroding the inside of the MVR evaporator body 1.

Claims

1. An MVR evaporator for sewage treatment, comprising an MVR evaporator body (1), characterized in that: The left side of the MVR evaporator body (1) is connected to a processing box (2), the left side of the top of the processing box (2) is connected to a filter box (3), the inside of the filter box (3) is fixedly connected to a filter plate (4), the inside of the processing box (2) is respectively fixedly connected to a first partition plate (7) and a second partition plate (8), the left side of the processing box (2) is fixedly connected to an electric cylinder (5), the output end of the electric cylinder (5) extends to the inside of the processing box (2) and is fixedly connected to a first pH measuring instrument (6), the right side of the first partition plate (7) and the right side of the second partition plate (8) are both connected to a delivery pump (9), the top of the processing box (2) is fixedly connected to a storage box (12), the inside of the storage box (12) is fixedly connected to a third partition plate (15), the top of the storage box (12) is fixedly connected to a third partition plate (15), and the top of the storage box (12) is fixedly connected to a third partition plate (15). The two sides of the part are respectively connected with an acidic agent feeding pipe (13) and an alkaline agent feeding pipe (14), the two sides of the storage box (12) are respectively connected with a first water pump (16) and a second water pump (17), the top of the inner wall of the treatment box (2) is respectively fixedly connected with a first nozzle (23) and a second nozzle (24), the water outlet of the first water pump (16) is connected to the first nozzle (23) through a pipeline, the water outlet of the second water pump (17) is connected to the second nozzle (24) through a pipeline, the first nozzle (23) and the second nozzle (24) are staggered, the number of the first nozzle (23) and the number of the second nozzle (24) are both several, and the first nozzle (23) and the second nozzle (24) are both located between the first partition plate (7) and the second partition plate (8).

2. The MVR evaporator for sewage treatment according to claim 1, characterized in that: The processing box (2) is movably connected to a stirring rod (10) inside, and the bottom of the processing box (2) is fixedly connected to a first motor (11), the output end of the first motor (11) is fixedly connected to the stirring rod (10), and the stirring rod (10) is located between the first partition plate (7) and the second partition plate (8).

3. The MVR evaporator for sewage treatment according to claim 2, characterized in that: The inner wall of the filter box (3) is fixedly connected to the second motor (20) via a bracket, the output end of the second motor (20) is fixedly connected to a scraper frame (21), the scraper frame (21) is movably connected to the filter plate (4), the right side of the filter box (3) is connected to a collection box (22), the front of the collection box (22) is hinged with a cover plate, the surfaces of the first motor (11) and the second motor (20) are fixedly connected to protective covers, and the inner wall of the protective covers is fixedly connected to a heat-conducting rod, and the heat-conducting rod is movably connected to the first motor (11) and the second motor (20), and the protective covers are made of stainless steel.

4. The MVR evaporator for sewage treatment according to claim 3, characterized in that: A second pH measuring instrument (18) is fixedly connected to the right side of the first partition plate (7).

5. The MVR evaporator for sewage treatment according to claim 4, characterized in that: A controller is fixedly connected to the left side of the processing box (2), and the controller is respectively connected to the first pH meter (6), the second pH meter (18), the first water pump (16) and the second water pump (17) via signals.

6. The MVR evaporator for sewage treatment according to claim 1, 2 or 5, characterized in that: The inside of the treatment box (2) is movably connected to an activated carbon adsorption plate (19), the back side of the activated carbon adsorption plate (19) extends to the back side of the treatment box (2) and is fixedly connected to a handle, and the surface of the handle is provided with anti-slip grooves, and the number of anti-slip grooves is several, and the anti-slip grooves are evenly distributed on the surface of the handle.

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