Pretreatment device for pure water preparation

Abstract

The utility model discloses a pure water preparation pretreatment device, which relates to the technical field of pure water preparation and comprises a bottom frame, a water inlet pump mounted at the top of the bottom frame, a controller mounted at the top of the bottom frame and a water inlet pipe arranged at the top of the bottom frame. An outlet of the water inlet pump is communicated with the cyclone separation assembly, the cyclone separation assembly comprises a vertically-arranged conical separation barrel, and a tangential water inlet is formed in the upper portion of the side wall of the conical separation barrel and communicated with the water inlet pump; the top center of the separation barrel is provided with an overflow port, and the bottom is connected with a conical sand outlet; and the tail end of the conical sand discharge port is communicated with an accumulation barrel for collecting settled particles. By arranging the separation assembly, large-particle grit in raw water can be preliminarily filtered, meanwhile, water flow is separated through the overflow port and enters the filtering assembly for secondary filtering, the filtering effect is improved, the purity of the raw water is improved, and follow-up pure water purification is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of pure water preparation technology, specifically a pure water preparation pretreatment device. Background Technology

[0002] Pure water (high-purity water, ultrapure water) refers to water from which most impurities (such as ions, organic matter, microorganisms, particulate matter, etc.) have been removed, and its conductivity is typically below 1 μS / cm (ultrapure water can reach 0.055 μS / cm). It is mainly used in: the electronics industry (semiconductor chip, LCD panel cleaning), the pharmaceutical industry (water for injection, laboratory reagent preparation), the power industry (boiler feedwater, nuclear power plant cooling water), and laboratory research (HPLC, mass spectrometry analysis, etc.).

[0003] The existing patent (authorization announcement number: CN222226131U) discloses an ultrapure water preparation device. The key technical points of the device are: by setting up a cleaning mechanism, gears, a rotating mechanism, a discharge port and a collection hood, water is drawn from the pretreatment chamber by a water pump. The water then flows through the water pump pipe, the water outlet pipe and the water spray pipe in sequence, and finally sprays out through the nozzle to clean the filter screen. At the same time, the electric push rod drives the toothed plate to move back and forth, which drives the gear to rotate back and forth, so that the water spray pipe can rotate back and forth, thus ensuring the cleaning effect of the filter screen and eliminating the need to disassemble and clean the filter screen.

[0004] However, the above technical solution still has certain defects. The device only performs preliminary filtration through a set of filter plates, which cannot achieve a good filtration effect on the water quality of pure water in pure water preparation. This causes the pure water to be filtered for a longer time during the filtration process, and does not achieve a good pretreatment effect. Therefore, a pure water preparation pretreatment device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a pure water preparation pretreatment device to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pure water preparation pretreatment device includes a base frame, an inlet pump installed on the top of the base frame, a controller installed on the top of the base frame, and an inlet pipe installed on the top of the base frame, wherein the inlet pump is connected to a separation component;

[0008] The outlet of the inlet pump is connected to a cyclone separator assembly, which includes: a vertically arranged conical separator barrel with a tangential inlet on the upper part of its side wall connected to the inlet pump; an overflow port at the center of the top of the separator barrel and a conical sand discharge port connected to the bottom; and an accumulation barrel at the end of the conical sand discharge port for collecting settled particles.

[0009] The overflow port is connected to a multi-stage filtration assembly via a connecting pipe. The filtration assembly includes a filter barrel and a built-in layered filtration unit.

[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0011] As a further embodiment of this utility model: the filter assembly consists of a filter barrel, a layered filter mechanism rotatably mounted on the inner wall of the filter barrel, a cleaning component fixedly mounted at the bottom of the layered filter mechanism, a fine filter fixedly mounted at the bottom of the cleaning component, and a water outlet at the bottom of the filter barrel. The cleaning component includes a filter plate, a rotating rod, and a cleaning rod. The inner wall of the filter plate is rotatably connected to the outer wall of the rotating rod, one side of the rotating rod is fixedly connected to one end of the cleaning rod, and the outer wall of the filter plate is fixedly connected to the inner wall of the filter barrel.

[0012] As a further embodiment of this utility model: the layered filtration unit includes three coaxially sleeved filter screens, which are arranged from the outside to the inside as follows: the first filter screen is filled with quartz sand; the second filter screen is filled with activated carbon; and the third filter screen is filled with copper-zinc alloy.

[0013] As a further embodiment of this utility model: the fine filter consists of a conical cavity and a filter rotatably mounted at the bottom of the conical cavity; the top of the filter is provided with a top hole, and the side of the filter is provided with a side hole; the top of the conical cavity is fixedly connected to the bottom of the filter plate.

[0014] As a further improvement of this utility model, the fine filter has a built-in pleated PP cotton filter element.

[0015] As a further improvement of this utility model, the first filter screen, the second filter screen, and the third filter screen are all slidably installed on the inner wall of the filter barrel.

[0016] As a further improvement of this utility model: a cleaning brush is provided at the bottom of the cleaning rod, and the diameter of the brush on the cleaning brush is smaller than the diameter of the filter hole opened on the filter plate.

[0017] As a further improvement of this utility model, the brush is made of nylon material.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model can perform preliminary filtration of large particles of sand and gravel in the raw water by setting a separation component. At the same time, the water flow will be separated through the overflow outlet and enter the filter component for secondary filtration, which will increase the filtration effect, improve the purity of the raw water, and facilitate subsequent pure water purification.

[0020] 2. This utility model uses a three-layer filtration mechanism to filter raw water in multiple layers, so that most of the impurities in the raw water are filtered out. At the same time, the water flow impact force drives the cleaning rod to clean the filter plate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the separation component of this utility model;

[0023] Figure 3 This is a cross-sectional view of the separation component of this utility model;

[0024] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a cross-sectional view of the filter assembly of this utility model.

[0026] Attached diagram annotations: 1. Base frame; 2. Inlet pump; 3. Cyclone separator assembly; 4. Connecting pipe; 5. Filter assembly; 6. Inlet pipe; 7. Controller;

[0027] 31. Conical separator tank; 32. Inlet; 33. Overflow outlet; 34. Conical inlet; 35. Support legs; 36. Accumulation tank;

[0028] 51. Filter canister; 52. Layered filtration mechanism; 53. Cleaning assembly; 54. Fine filter; 55. Water outlet;

[0029] 521. First filter screen; 522. Second filter screen; 523. Third filter screen;

[0030] 531. Filter plate; 532. Rotating rod; 533. Cleaning rod;

[0031] 541. Conical cavity; 542. Top hole; 543. Side hole. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] In one embodiment, such as Figures 1-5 As shown, a pure water preparation pretreatment device includes a base frame 1, an inlet pump 2 installed on the top of the base frame 1, a controller 7 installed on the top of the base frame 1, and an inlet pipe 6 set on the top of the base frame 1. The inlet pump 2 is connected to a separation component.

[0034] In this embodiment, the rigid frame supporting the entire device is usually made of stainless steel or corrosion-resistant steel to ensure the stability of the equipment. The water inlet pump 2 is installed on the top of the base frame 1 and is responsible for pressurizing and transporting the raw water (such as tap water or groundwater) to the subsequent treatment unit. It integrates a PLC or microcomputer control module to adjust the start and stop of the water inlet pump 2 and monitor parameters such as flow rate / pressure. The outlet of the water inlet pump 2 is directly connected to the separation component (such as a hydrocyclone sand separator) through a pipeline, and the separation process is driven by pressurized water flow.

[0035] In one embodiment, such as Figure 1 As shown, the outlet of the water inlet pump 2 is connected to the cyclone separator 3. The cyclone separator 3 includes: a vertically arranged conical separator 31, with a tangential water inlet 32 ​​on the upper part of its side wall connected to the water inlet pump 2; an overflow port at the center of the top of the separator 31, and a conical sand discharge port at the bottom; the end of the conical sand discharge port is connected to the accumulation tank 36 for collecting settled particles; the raw water enters the separator 31 tangentially from the water inlet pipe 6 under high pressure. The tangential water inlet design causes the water flow to form a high-speed rotating vortex along the cylinder wall. Heavy particles (such as sand and rust) are thrown towards the cylinder wall under centrifugal force and spiral down along the wall to the bottom sand discharge port. Light water gathers in the central low-pressure area, forming an upward internal vortex, and is discharged from the top outlet. A low-pressure air column will naturally form in the center of the cyclone separator, further promoting the separation of particles and water.

[0036] The overflow port is connected to the multi-stage filtration assembly 5 through the connecting pipe 4. The filtration assembly 5 includes a filter barrel 51 and a built-in layered filtration unit, which can perform secondary filtration and separation on the filtered raw water to improve the quality of pure water preparation.

[0037] In one embodiment, such as Figure 3As shown, the filter assembly 5 consists of a filter barrel 51, a layered filter mechanism 52 rotatably mounted on the inner wall of the filter barrel 51, a cleaning assembly 53 fixedly mounted at the bottom of the layered filter mechanism 52, a fine filter 54 fixedly mounted at the bottom of the cleaning assembly 53, and a water outlet 55 located at the bottom of the filter barrel 51. The cleaning assembly 53 includes a filter plate 531, a rotating rod 532, and a cleaning rod 533. The inner wall of the filter plate 531 is rotatably connected to the outer wall of the rotating rod 532, one side of the rotating rod 532 is fixedly connected to one end of the cleaning rod 533, and the outer wall of the filter plate 531 is fixedly connected to the inner wall of the filter barrel 51. The bottom of the cleaning rod 533 is equipped with a cleaning brush, and the diameter of the brush bristles on the cleaning brush is smaller than the diameter of the filter holes opened on the filter plate 531; the filter barrel 51 is a container that carries all the filter units, and is usually made of corrosion-resistant material (such as UPVC / 316 stainless steel). The layered filtration mechanism 52 is a rotatable multi-stage filter bed to achieve gradient filtration. The filter plate 531 supports the upper filter material and allows water to flow through. The filter plate 531 is rigidly fixed to the inner wall of the filter barrel 51 to form a cleaning reference surface. The rotating rod 532 penetrates vertically through the center of the filter plate 531 and is driven to rotate by a water turbine. The brush bristles of the cleaning rod 533 scrape away the impurities retained in the pores of the filter plate 531.

[0038] In one embodiment, such as Figure 5 As shown, the layered filtration unit includes three coaxially nested filter screens, from the outside to the inside: the first filter screen 521 is filled with quartz sand; the second filter screen 522 is filled with activated carbon; and the third filter screen 523 is filled with copper-zinc alloy. The outer layer of the first filter screen 521 is a cylindrical stainless steel screen, which is fixed to the inner wall of the filter tank 51 to perform primary coarse filtration of the raw water (retaining large particles). The middle layer of the second filter screen 522 is a cylindrical porous filter basket that is coaxially connected to the first layer of screens through a flange to perform intermediate adsorption of the raw water (removing organic matter). The inner layer of the third filter screen 523 is a honeycomb alloy frame for fine treatment (removing heavy metals). At the same time, the quartz sand pre-filtration protects the electron transfer of the activated carbon pores KDF and enhances the regeneration capacity of the activated carbon.

[0039] In one embodiment, such as Figure 5 As shown, the fine filter 54 consists of a conical cavity 541 and a filter rotatably mounted at the bottom of the conical cavity 541; the top of the filter is provided with a top hole 542 and the side of the filter is provided with a side hole 543. The top of the conical cavity 541 is fixedly connected to the bottom of the filter plate 531. The fine filter 54 has a built-in pleated PP cotton filter element. The filter is rotated by the inlet water pressure. The centrifugal force generated by the rotation causes particles >20μm to detach from the surface of the filter element. The sludge is periodically discharged in conjunction with the drain valve at the bottom of the conical cavity 541.

[0040] The above embodiments disclose a pure water preparation pretreatment device, wherein the raw water is tangentially introduced into the separation tank 31 through the inlet water pump 2 at high pressure from the inlet water pipe 6. The tangential water inlet design causes the water flow to form a high-speed rotating vortex along the tank wall, separating large particles of quicksand. At the same time, the raw water is further filtered through a three-layer filtration mechanism, and the water flow impact drives the cleaning rod to clean the surface of the filter plate, preventing the filter plate from clogging.

[0041] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A pure water preparation pretreatment device, comprising a base frame (1), an inlet pump (2) mounted on the top of the base frame (1), a controller (7) mounted on the top of the base frame (1), and an inlet pipe (6) disposed on the top of the base frame (1), characterized in that, The inlet pump (2) is connected to a separation assembly; The outlet of the water inlet pump (2) is connected to the cyclone separator assembly (3), which includes: a vertically arranged conical separator (31), with a tangential water inlet (32) on the upper part of its side wall connected to the water inlet pump (2); an overflow port at the center of the top of the separator (31), and a conical sand discharge port connected to the bottom; the end of the conical sand discharge port is connected to an accumulation tank (36) for collecting sedimented particles; The overflow port is connected to a multi-stage filtration assembly (5) via a connecting pipe (4). The filtration assembly (5) includes a filter barrel (51) and a built-in layered filtration unit.

2. The pure water preparation pretreatment device according to claim 1, characterized in that, The filter assembly (5) consists of a filter barrel (51), a layered filter mechanism (52) rotatably mounted on the inner wall of the filter barrel (51), a cleaning assembly (53) fixedly mounted at the bottom of the layered filter mechanism (52), a fine filter (54) fixedly mounted at the bottom of the cleaning assembly (53), and a water outlet (55) located at the bottom of the filter barrel (51). The cleaning assembly (53) includes a filter plate (531), a rotating rod (532), and a cleaning rod (533). The inner wall of the filter plate (531) is rotatably connected to the outer wall of the rotating rod (532), one side of the rotating rod (532) is fixedly connected to one end of the cleaning rod (533), and the outer wall of the filter plate (531) is fixedly connected to the inner wall of the filter barrel (51).

3. The pure water preparation pretreatment device according to claim 2, characterized in that, The layered filtration unit includes three coaxially nested filter screens, which are arranged from the outside to the inside as follows: the first filter screen (521) is filled with quartz sand; the second filter screen (522) is filled with activated carbon; and the third filter screen (523) is filled with copper-zinc alloy.

4. The pure water preparation pretreatment device according to claim 2, characterized in that, The fine filter (54) consists of a conical cavity (541) and a filter rotatably installed at the bottom of the conical cavity (541); the top of the filter is provided with a top hole (542) and the side of the filter is provided with a side hole (543); the top of the conical cavity (541) is fixedly connected to the bottom of the filter plate (531).

5. The pure water preparation pretreatment device according to claim 4, characterized in that, The fine filter (54) has a built-in pleated PP cotton filter element.

6. The pure water preparation pretreatment device according to claim 3, characterized in that, The first filter screen (521), the second filter screen (522), and the third filter screen (523) are all slidably installed on the inner wall of the filter barrel (51).

7. The pure water preparation pretreatment device according to claim 2, characterized in that, The bottom of the sweeping rod (533) is provided with a sweeping brush, and the diameter of the brush on the sweeping brush is smaller than the diameter of the filter hole opened on the filter plate (531).

8. The pure water preparation pretreatment device according to claim 7, characterized in that, The brush is made of nylon.

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