Improved front washing device for desalted water production

Abstract

The utility model discloses an improved front washing device for desalted water production, which comprises an activated carbon bed, one side of the activated carbon bed is connected with a cation bed for removing cations through a pipeline, one side of the cation bed is connected with a water tank for storing water through a pipeline, and one side of the water tank is connected with a water pump for pumping water through a pipeline. And one side of the water pump is connected with an anion bed for removing anions through a pipeline. According to the utility model, a circulating forward washing line is additionally arranged and is connected to the water inlet pipeline of the cation bed from the water producing outlet of the anion bed, and the starting electromagnetic valve and the manual butterfly valve are additionally arranged on the pipeline, so that during forward washing, the anion bed and the cation bed do not need to directly discharge water but circulate water; the purpose that parameters such as conductance, silicon dioxide and sodium ions can be washed to be within a qualified range without direct discharge is achieved, so that water resources, economy and power consumption can be effectively saved, carbon emission is reduced, and the standard reaching time of forward washing of the conductance, the silicon dioxide and the sodium ions is short.

Description

Technical Field

[0001] The utility model relates to the technical field of desalted water, in particular to an improved desalted water pre-water washing device. Background Art

[0002] Desalted water is water in which the easily removable strong electrolytes are removed or reduced to a certain level, and the remaining salt content should be between 1 and 5 mg / L.

[0003] Before producing desalted water, both the anion bed and the cation bed need to be washed until their parameters such as conductivity, silica, and sodium ions are qualified before water production can begin. However, during the washing process, the water is directly discharged, which causes a large amount of water resource waste. At the same time, the water pump must be started to discharge the water, resulting in increased power consumption, which has a negative impact on the economy, energy conservation and emission reduction, and carbon emissions. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and to propose an improved desalted water pre-washing device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An improved desalted water pre-wash device comprises an activated carbon bed, one side of the activated carbon bed is connected to a cation bed for removing cations via a pipeline, one side of the cation bed is connected to a water tank for storing water via a pipeline, one side of the water tank is connected to a water pump for pumping water via a pipeline, one side of the water pump is connected to an anion bed for removing anions via a pipeline, one side of the anion bed is connected to a mixed bed for purifying water via a pipeline, and a circulating positive wash line for recycling water is installed on the pipeline between the anion bed and the mixed bed.

[0007] Preferably, the circulating forward wash line includes a circulating pipe for discharging water into the pipe between the activated carbon bed and the cation bed, and one end of the circulating pipe away from the pipe between the activated carbon bed and the cation bed is connected to the pipe between the anion bed and the mixed bed. A manual butterfly valve for controlling the flow of water is installed on the circulating pipe, and an electromagnetic valve for controlling the flow direction of water is installed on the outer wall of the circulating pipe.

[0008] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0009] In this application, a circulating positive washing line is added, connected from the water outlet of the anion bed to the water inlet pipeline of the cation bed, and a starting solenoid valve and a manual butterfly valve (normally open) are added to the pipeline. During positive washing, the anion bed and the cation bed do not need to discharge the water directly but circulate the water to achieve the purpose of washing parameters such as conductivity, silica, and sodium ions to within the qualified range without direct discharge. This can effectively save water resources, save economy and electricity consumption, reduce carbon emissions, and the time it takes for the conductivity, silica, and sodium ions to reach the standards during positive washing is short. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 Shows a schematic diagram of the overall structure provided according to an embodiment of the utility model;

[0011] Figure 2 A schematic structural diagram of a circulating forward washing line provided according to an embodiment of the utility model is shown.

[0012] Legend:

[0013] 1. Activated carbon bed; 2. Cationic bed; 3. Water tank; 4. Water pump; 5. Anionic bed; 6. Mixed bed; 7. Circulation pipe; 8. Manual butterfly valve; 9. Solenoid valve. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] See also Figure 1-2 , the utility model provides a technical solution:

[0016] Example 1:

[0017] like Figure 1-2 As shown, an improved desalted water pre-wash device includes an activated carbon bed 1, one side of the activated carbon bed 1 is connected to a cation bed 2 for removing cations through a pipeline, one side of the cation bed 2 is connected to a water tank 3 for storing water through a pipeline, one side of the water tank 3 is connected to a water pump 4 for pumping water through a pipeline, one side of the water pump 4 is connected to an anion bed 5 for removing anions through a pipeline, one side of the anion bed 5 is connected to a mixed bed 6 for purifying water through a pipeline, and a circulating positive wash line for recycling water is installed on the pipeline between the anion bed 5 and the mixed bed 6.

[0018] Example 2:

[0019] The technical solution is basically the same as that of embodiment 1, except that Figure 2As shown, the circulating forward washing line includes a circulating pipe 7 for discharging water into the pipe between the activated carbon bed 1 and the cation bed 2. One end of the circulating pipe 7 away from the pipe between the activated carbon bed 1 and the cation bed 2 (that is, the water inlet of the cation bed 2) is connected to the pipe between the anion bed 5 and the mixed bed 6 (that is, the water outlet of the anion bed 5). A manual butterfly valve 8 for controlling the flow of water is installed on the circulating pipe 7. The manual butterfly valve 8 is always in an open state. The outer wall of the circulating pipe 7 is installed with a solenoid valve 9 for controlling the flow direction of water.

[0020] To sum up, after the forward washing of the improved desalted water production pre-washing device provided in this embodiment, the water discharged from the anion bed 5 will not flow to the mixed bed 6. The water discharged from the anion bed 5 will flow to the water inlet of the cation bed 2 through the circulation pipe 7. In this way, the water after the forward washing will not be discharged directly but can be circulated, so as to achieve the purpose of washing the conductivity, silica, sodium ions and other parameters of the water flow to the qualified range without direct discharge. This can effectively save water resources, save economy and electricity consumption, reduce carbon emissions, and the time for the forward washing conductivity, silica and sodium ions to reach the standards is short.

[0021] The above description of the embodiments is intended to enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An improved desalted water pre-washing device, comprising an activated carbon bed (1), characterized in that: One side of the activated carbon bed (1) is connected to a cation bed (2) for removing cations via a pipeline, one side of the cation bed (2) is connected to a water tank (3) for storing water via a pipeline, one side of the water tank (3) is connected to a water pump (4) for pumping water via a pipeline, one side of the water pump (4) is connected to an anion bed (5) for removing anions via a pipeline, one side of the anion bed (5) is connected to a mixed bed (6) for purifying water via a pipeline, and a circulating positive wash line for recycling water is installed on the pipeline between the anion bed (5) and the mixed bed (6).

2. The improved desalted water pre-washing device according to claim 1 is characterized in that: The circulating forward washing line comprises a circulating pipe (7) for discharging water into the pipeline between the activated carbon bed (1) and the cation bed (2); one end of the circulating pipe (7) away from the pipeline between the activated carbon bed (1) and the cation bed (2) is connected to the pipeline between the anion bed (5) and the mixed bed (6); a manual butterfly valve (8) for controlling the flow of water is installed on the circulating pipe (7); and a solenoid valve (9) for controlling the flow direction of water is installed on the outer wall of the circulating pipe (7).

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