Pure water pretreatment system

Abstract

The utility model belongs to the technical field of pure water preparation equipment, and particularly relates to a pure water pretreatment system. The device comprises a raw water tank, a multi-medium filter, an activated carbon filter and a precision filter which are sequentially communicated, each of the multi-medium filter and the active carbon filter comprises a tank body, the upper part of the tank body is a water inlet, and the lower part is a water outlet; and a water distributor is arranged in the tank body and is communicated with the water inlet. The water treatment device is used for solving the technical problem that in the existing water treatment process, water entering the multi-medium filter and the activated carbon filter cannot be uniformly distributed to the filler layer, so that the filler layer cannot be fully utilized.

Description

Technical Field

[0001] This utility model belongs to the technical field of pure water preparation equipment, specifically relating to a pure water pretreatment system. Background Technology

[0002] Pure water, also known as deionized water, is generally used in laboratories, pharmaceuticals, and the electronics industry. Equipment for producing pure water includes a pretreatment process. This pretreatment process typically includes multi-media filters and activated carbon filters. These two types of filters effectively remove suspended solids and bacteria from the raw water using various filter media.

[0003] Multi-media filters typically use layered gravel, anthracite, sand, or other materials as filter media, while activated carbon filters use layered activated carbon granules. After a period of use, both types of filters will develop scale and caking on their surfaces. This is usually addressed through pressurized backwashing for repeated use. If multiple backwashings fail to maintain the filter media's performance, it needs to be replaced.

[0004] However, existing multi-media filters and activated carbon filters cannot evenly distribute the influent to the internal packing layer, resulting in only a localized area of ​​the packing layer being in normal use, leading to low utilization and waste. Utility Model Content

[0005] This invention provides a pure water pretreatment system to solve the technical problem that the influent of multi-media filters and activated carbon filters in existing water treatment processes cannot be evenly distributed to the packing layer, resulting in the packing layer not being fully utilized.

[0006] This utility model includes a raw water tank, a multi-media filter, an activated carbon filter, and a precision filter connected in sequence.

[0007] Both the multi-media filter and the activated carbon filter include a tank, with the upper part of the tank being the inlet and the lower part being the outlet.

[0008] The tank is equipped with a water distributor, which is connected to the water inlet.

[0009] This invention uses a water distributor to evenly distribute the incoming water onto the packing layer, allowing the packing layer to be fully utilized.

[0010] Furthermore: the water distributor includes a bushing, one end of which is connected to the water inlet;

[0011] The other end of the bushing is provided with a base plate, and a plurality of spokes are provided between the base plate and the bushing;

[0012] The base plate has a number of water-permeable holes in the area between the spokes;

[0013] The bushing has several through holes on its circumferential surface. The beneficial effect of this step is that water enters from the top of the bushing, flows from the through holes on the circumferential surface of the bushing to the spaces between the spokes, and then seeps out from the water-permeable holes in the bottom plate, which can make the water distribution as uniform as possible.

[0014] Furthermore: the upper edge of the spokes is adapted to the top of the tank body;

[0015] The diameter of the bottom plate is less than or equal to the diameter of the tank body. The beneficial effect of this step is that the upper edge of the spoke plate fits the top of the tank body, which can save internal space.

[0016] Furthermore, the spokes can be straight or curved. The beneficial effect of this step is that when the spokes are curved, the flow path can be extended, allowing the water flow to be more evenly distributed.

[0017] Furthermore, the diameters of adjacent permeable holes on the same straight line are gradually changing. The beneficial effect of this step is also to make the water flow more even.

[0018] Furthermore: a heat exchanger is provided between the activated carbon filter and the precision filter. The heat exchanger includes a first flow channel and a second flow channel. The inlet of the first flow channel is connected to the outlet of the activated carbon filter, and the outlet of the first flow channel is simultaneously connected to the inlet of the precision filter and the inlet of the raw water tank.

[0019] The second flow channel is connected to the steam pipeline. The beneficial effect of this step is that the water entering the heat exchanger is heated and disinfected through the steam pipeline.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model, by setting a water distributor in the tank of the multi-media filter and activated carbon filter, allows the incoming water flow to be evenly distributed on the packing layer, which can make full use of the filtration effect of the packing layer on the water flow and improve the utilization rate of the packing layer.

[0022] 2. Use a heat exchanger to heat and disinfect the filtered water. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 A flowchart of a pure water pretreatment system provided by this utility model;

[0025] Figure 2 A perspective view of the water distributor in a multi-media filter and activated carbon filter in a pure water pretreatment system provided by this utility model.

[0026] Figure label:

[0027] 1-Raw water tank; 2-Multi-media filter; 3-Activated carbon filter; 4-Precision filter; 5-Heat exchanger; 6-Water distributor;

[0028] 61-Sleeve; 62-Base plate; 63-Spoke plate;

[0029] 611 - Through hole; 621 - Water-permeable hole. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0032] Implementation of this application, for example Figure 1 and Figure 2 As shown, the pure water pretreatment system provided by this utility model can improve the utilization rate of the packing material in multi-media filters and activated carbon filters.

[0033] This utility model includes a raw water tank 1, a multi-media filter 2, an activated carbon filter 3, and a precision filter 4 connected in sequence.

[0034] Both the multi-media filter 2 and the activated carbon filter 3 include a tank body, with an inlet at the top and an outlet at the bottom; a packing layer is provided below the inlet, and various filter media are laid on the packing layer.

[0035] The tank is equipped with a water distributor 6, which is connected to the water inlet.

[0036] This invention uses a water distributor 6 to evenly distribute the incoming water onto the packing layer, allowing the packing layer to be fully utilized.

[0037] Based on the above technical solution, the water distributor 6 includes a bushing 61, one end of which is connected to the water inlet;

[0038] The other end of the bushing 61 is provided with a base plate 62, and a plurality of spokes 63 are provided between the base plate 62 and the bushing 61. The spokes 63 are preferably arranged in a ring-shaped uniform structure.

[0039] The base plate 62 has a plurality of water-permeable holes 621 in the area between the spokes 63;

[0040] The bushing 61 has several through holes 611 on its circumferential surface. Water enters from the top of the bushing 61, flows from the through holes 611 on the circumferential surface of the bushing 61 to the spaces between the spokes 63, and then seeps out from the water-permeable holes 621 of the bottom plate 62, which can make the water distribution as uniform as possible.

[0041] Based on the above technical solution, the upper edge of the spoke 63 is adapted to the top of the tank body, and the upper edge of the spoke 63 fits the top of the tank body, which can save internal space.

[0042] The diameter of the base plate 62 is less than or equal to the diameter of the tank body. When the diameter of the base plate 62 is the same as the diameter of the tank body, several notches can be made on the edge of the base plate 62 to allow water to flow down. When the diameter of the base plate 62 is less than the diameter of the tank body, the water can flow down from the gap between the base plate 62 and the tank body.

[0043] Based on the above technical solution, the spoke 63 is straight or curved. When the spoke 63 is curved, the curve includes spiral or S-shape, which can extend the flow path and make the water flow more even. In addition, the end of the straight or curved line is hook-shaped, which can partially block the water flow, further slow down the water flow speed, absorb the pump water pressure at the inlet, and make the water flow more even.

[0044] Based on the above technical solution, the diameters of adjacent permeable holes 621 on the same straight line are gradually changing. Specifically, the diameter of the permeable hole 621 closer to the center is smaller than the diameter of the permeable hole 621 farther from the center, which is also to make the water flow more even.

[0045] Based on the above technical solution, a heat exchanger 5 is also provided between the activated carbon filter 3 and the precision filter 4. The heat exchanger 5 is preferably a plate heat exchanger, which is easy to clean. The heat exchanger 5 includes a first flow channel and a second flow channel. The inlet of the first flow channel is connected to the outlet of the activated carbon filter 3, and the outlet of the first flow channel is simultaneously connected to the inlet of the precision filter 4 and the inlet of the raw water tank 1.

[0046] The second flow channel is connected to the steam pipeline, which is generally the steam generated by other equipment in the plant area. It can make full use of the residual heat energy in other production processes and heat and disinfect the water entering the heat exchanger 5 through the steam pipeline.

[0047] In the above embodiments, this utility model improves the utilization rate of the packing layer in multi-media filters and activated carbon filters by using a water distributor, extends the service life of the packing layer, and saves costs.

[0048] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A pure water pretreatment system, characterized by, It includes a raw water tank, a multi-media filter, an activated carbon filter, and a precision filter connected in sequence; Both the multi-media filter and the activated carbon filter include a tank, with the upper part of the tank being the inlet and the lower part being the outlet. The tank is equipped with a water distributor, which is connected to the water inlet.

2. The pure water pretreatment system of claim 1, wherein The water distributor includes a bushing, one end of which is connected to the water inlet. The other end of the bushing is provided with a base plate, and a plurality of spokes are provided between the base plate and the bushing; The base plate has a number of water-permeable holes in the area between the spokes; The bushing has several through holes on its circumferential surface.

3. The pure water pretreatment system of claim 2, wherein The upper edge of the spokes is adapted to the top of the tank body; The diameter of the bottom plate is less than or equal to the diameter of the tank body.

4. The pure water pretreatment system according to claim 3, wherein The spokes can be straight or curved.

5. The pure water pretreatment system of claim 4, wherein The diameters of adjacent permeable holes on the same straight line gradually change.

6. The pure water pretreatment system of claim 5, wherein A heat exchanger is also provided between the activated carbon filter and the precision filter. The heat exchanger includes a first flow channel and a second flow channel. The inlet of the first flow channel is connected to the outlet of the activated carbon filter, and the outlet of the first flow channel is simultaneously connected to the inlet of the precision filter and the inlet of the raw water tank. The second flow channel is connected to the steam pipeline.

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