MVR distillation system with reverse osmosis membrane concentration device

Abstract

This utility model discloses an MVR distillation system with a reverse osmosis membrane concentration unit, comprising a reverse osmosis membrane concentration unit and an MVR distillation unit connected in sequence. The reverse osmosis membrane concentration unit includes a support frame and at least one set of permeate membrane concentration mechanisms mounted on the support frame. Each permeate membrane concentration mechanism includes at least one set of inlet pipes and outlet pipes, and at least one layer of piping connecting the inlet and outlet pipes. The piping mechanism includes at least one permeate membrane concentration tube connecting the inlet and outlet pipes. The outlet pipe is connected to the MVR distillation unit. This system enables the crystallization and recovery of (NH4)2SO4 through physical means, reducing operating costs and minimizing waste of manpower and resources.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to an MVR distillation system with a reverse osmosis membrane concentration device. Background Technology

[0002] The photovoltaic industry generates (NH4)2SO4. According to environmental regulations, ammonia nitrogen cannot be directly emitted. Currently, a biochemical method is used to decompose ammonia using microorganisms. This involves first constructing a biochemical tank, then feeding the microorganisms with glucose or peptide sugars, allowing them to decompose the ammonia. This biochemical method of ammonia decomposition is costly. Besides the high cost of constructing the biochemical tank, corresponding pipelines need to be laid, requiring significant manpower and resources for construction. Furthermore, maintaining the activity of the microorganisms requires consuming large amounts of glucose daily, further increasing operating costs. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the purpose of this application is to provide an MVR distillation system with a reverse osmosis membrane concentration device, which can realize the crystallization and recovery of (NH4)2SO4 by physical means, reduce the cost of use, and reduce the waste of manpower and material resources.

[0004] To solve the aforementioned existing technical problems, the objective of this application is achieved by the following technical solution: an MVR distillation system with a reverse osmosis membrane concentration device, comprising a reverse osmosis membrane concentration device and an MVR distillation device connected in sequence, wherein the reverse osmosis membrane concentration device includes a support frame and at least one set of permeate membrane concentration mechanisms disposed on the support frame, wherein the permeate membrane concentration mechanism includes at least one set of inlet pipe and outlet pipe, and at least one layer of piping mechanism connecting the inlet pipe and outlet pipe, wherein the piping mechanism includes at least one permeate membrane concentration pipe connecting the inlet pipe and outlet pipe, and the outlet pipe is connected to the MVR distillation device.

[0005] Preferably, the permeation membrane concentration mechanism consists of two sets, symmetrically arranged on the support frame.

[0006] Preferably, the inlet pipe and outlet pipe are two sets, vertically and symmetrically connected at both ends of the pipeline mechanism.

[0007] Preferably, the pipeline structure has 6 layers arranged horizontally in parallel.

[0008] Preferably, the piping system further includes an inlet branch pipe connecting the inlet pipe and the center of the end of the permeate membrane concentration pipe, and an outlet branch pipe connecting the outlet pipe and the bottom side of the end of the permeate membrane concentration pipe.

[0009] Preferably, the inlet branch pipe is provided with a connecting pipe that connects to the center of the end of the permeate membrane concentration tube, and the outlet branch pipe is provided with a connecting pipe that connects to the bottom side of the end of the permeate membrane concentration tube.

[0010] Preferably, the pipeline system uses two parallel permeate membrane concentration tubes.

[0011] Preferably, a support plate is provided on the bottom side of the pipeline mechanism on the support frame, and a plurality of parallel support rods are provided inside the support plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The MVR distillation system with a reverse osmosis membrane concentration unit, which adopts the above technical solution, can achieve the crystallization and recovery of (NH4)2SO4 through physical means, reducing operating costs and waste of manpower and resources. The combination of the reverse osmosis membrane concentration unit and the MVR distillation unit can also improve the crystallization efficiency of (NH4)2SO4, reduce the maintenance rate of the MVR distillation unit, and extend its service life. Attached Figure Description

[0013] Figure 1 This is a flowchart illustrating the workflow of this utility model. Figure 2 This is a schematic diagram of the reverse osmosis membrane concentration device in this utility model; Figure 3 This is a front view of the reverse osmosis membrane concentration device of this utility model; Figure 4 This is a top view of the reverse osmosis membrane concentration device of this utility model; In the diagram: 1. Reverse osmosis membrane concentration unit; 11. Support frame; 12. Inlet pipe; 13. Outlet pipe; 14. Permeate membrane concentration tube; 15. Inlet branch pipe; 16. Outlet branch pipe; 17. Connecting pipe; 18. Support plate; 19. Support rod; 2. MVR distillation unit. Detailed Implementation

[0014] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0015] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Example 1:

[0016] like Figures 1 to 4As shown, an MVR distillation system with a reverse osmosis membrane concentration unit includes a reverse osmosis membrane concentration unit 1 and an MVR distillation unit 2 connected in sequence. The reverse osmosis membrane concentration unit 1 includes a support frame 11 and at least one set of permeate membrane concentration mechanisms disposed on the support frame 11. The permeate membrane concentration mechanism includes at least one set of inlet pipe 12 and outlet pipe 13, and at least one layer of piping mechanism connecting the inlet pipe 12 and outlet pipe 13. The piping mechanism includes at least one permeate membrane concentration tube 14 connecting the inlet pipe 12 and outlet pipe 13. The outlet pipe 13 is connected to the MVR distillation unit 2.

[0017] refer to Figures 1 to 4 The raw solution containing (NH4)2SO4 is concentrated by the reverse osmosis membrane concentration unit 1. When the reverse osmosis membrane concentration unit 1 is working, the raw solution containing (NH4)2SO4 enters the membrane concentration tube 14 through the inlet pipe 12. After the concentrated solution is formed, it exits from the outlet pipe 13 and enters the MVR distillation unit 2 for distillation to form (NH4)2SO4 crystals. The crystallization and recovery of (NH4)2SO4 can be achieved by physical means. Compared with the biochemical method, it can reduce the cost of use and reduce the waste of manpower and material resources.

[0018] The combination of reverse osmosis membrane concentration unit 1 and MVR distillation unit 2 can improve the crystallization efficiency of (NH4)2SO4, reduce the maintenance rate of MVR distillation unit, and extend its service life compared with using MVR distillation unit 2 alone.

[0019] MVR is the abbreviation for mechanical vapor recompression. An MVR distillation unit is also called an MVR evaporator. MVR is an energy-saving technology that reuses the energy of the secondary steam it generates, thereby reducing the demand for external energy. Example 2:

[0020] Based on the above embodiments, the permeate membrane concentration mechanism is arranged in two sets, symmetrically on the support frame 11. This symmetrical structure increases the overall stability of the support frame 11, making it less prone to displacement and ensuring normal operation.

[0021] Each set of permeate membrane concentration mechanisms employs two sets of inlet pipes 12 and outlet pipes 13, vertically and symmetrically connected to both ends of the pipeline mechanism. Inlet and outlet of liquid from both ends of the pipeline mechanism enhance its permeate membrane concentration function and improve the uniformity of permeate concentration.

[0022] The piping system in each permeate membrane concentration unit consists of six layers arranged horizontally in parallel. This increases the overall workload of the permeate membrane concentration unit but improves its overall efficiency. Example 3:

[0023] Based on the above embodiments, the piping mechanism further includes an inlet branch pipe 15 connecting the center of the ends of the inlet pipe 12 and the permeate membrane concentration pipe 14, and an outlet branch pipe 16 connecting the bottom side of the ends of the outlet pipe 13 and the permeate membrane concentration pipe 14. The inlet branch pipe 15 and the outlet branch pipe 16 are arranged in parallel, with the inlet branch pipe 15 positioned above the outlet branch pipe 16, utilizing partial gravity for liquid discharge, which can reduce energy consumption.

[0024] The inlet branch pipe 15 is provided with a connecting pipe 17 that connects to the center of the end of the permeate membrane concentration tube 14, and the outlet branch pipe 16 is provided with a connecting pipe 17 that connects to the bottom side of the end of the permeate membrane concentration tube 14. This facilitates the assembly, maintenance and replacement of the permeate membrane concentration tube 14.

[0025] The piping system employs two parallel permeate concentration tubes 14. This increases the workload and rate of permeate concentration. The connecting tubes 17 are adjusted according to the number of permeate concentration tubes 14. Example 4:

[0026] Based on the above embodiments, a support plate 18 is provided on the bottom side of the pipeline mechanism on the support frame 11, and a plurality of parallel support rods 19 are provided inside the support plate 18. This enhances the overall strength of the support frame 11, while also providing support for the permeate membrane concentration tube 14, and facilitating the maintenance and replacement of the permeate membrane concentration tube 14.

[0027] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. An MVR distillation system with a reverse osmosis membrane concentration device, characterized in that: The device includes a reverse osmosis membrane concentration unit (1) and an MVR distillation unit (2) connected in sequence. The reverse osmosis membrane concentration unit (1) includes a support frame (11) and at least one set of permeate membrane concentration mechanisms disposed on the support frame (11). The permeate membrane concentration mechanism includes at least one set of inlet pipe (12) and outlet pipe (13) and at least one layer of pipeline mechanism connecting the inlet pipe (12) and outlet pipe (13). The pipeline mechanism includes at least one permeate membrane concentration tube (14) connecting the inlet pipe (12) and outlet pipe (13). The outlet pipe (13) is connected to the MVR distillation unit (2).

2. The MVR distillation system with a reverse osmosis membrane concentration device of claim 1, wherein: The permeation membrane concentration mechanism consists of two sets, symmetrically arranged on the support frame (11).

3. The MVR distillation system with a reverse osmosis membrane concentration device of claim 1, wherein: The inlet pipe (12) and outlet pipe (13) are two sets, vertically and symmetrically connected at both ends of the pipeline mechanism.

4. The MVR distillation system with a reverse osmosis membrane concentration device of claim 3, wherein: The pipeline system consists of six layers arranged horizontally in parallel.

5. The MVR distillation system with a reverse osmosis membrane concentration device of claim 4, wherein: The piping system also includes an inlet branch pipe (15) connecting the center of the end of the inlet pipe (12) and the permeate membrane concentration pipe (14), and an outlet branch pipe (16) connecting the bottom side of the end of the outlet pipe (13) and the permeate membrane concentration pipe (14).

6. The MVR distillation system with a reverse osmosis membrane concentration device of claim 5, wherein: The inlet branch pipe (15) is provided with a connecting pipe (17) that is connected to the center of the end of the permeate membrane concentration pipe (14), and the outlet branch pipe (16) is provided with a connecting pipe (17) that is connected to the bottom side of the end of the permeate membrane concentration pipe (14).

7. The MVR distillation system with a reverse osmosis membrane concentration device of claim 5, wherein: The pipeline system uses two parallel permeate membrane concentration tubes (14).

8. The MVR distillation system with a reverse osmosis membrane concentration device of claim 1, wherein: The support frame (11) is provided with a support plate (18) on the bottom side of the pipeline mechanism, and the support plate (18) is provided with a number of parallel support rods (19).

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