An easy-to-maintain pretreatment device for preparing ultrapure water

Abstract

The present invention relates to the technical field related to the preparation of ultrapure water, and discloses an easy-to-maintain pretreatment equipment for the preparation of ultrapure water, comprising a lower cover body fixedly connected to the lower surface of the filter tank, the lower cover body is connected to the filter tank and forms a first cavity, a filter barrel is fixedly connected to the connection between the lower cover body and the filter tank, a fixed bottom plate is fixedly installed on the upper surface of the filter barrel, a fixed end block is fixedly installed on the upper surface of the fixed bottom plate, a cylindrical filter device is socket-installed on the upper surface of the fixed end block, and the cylindrical filter device includes an outer sleeve; this split design allows modular disassembly of the equipment, so that when performing maintenance or troubleshooting, specific components can be replaced or repaired in a targeted manner without shutting down the entire system, which greatly improves the efficiency of maintenance work, and because only some components that are damaged or have reached the end of their life need to be replaced.

Description

Technical Field

[0001] The present invention relates to the technical field related to preparation of micro-ultrapure water, and in particular to an easy-to-maintain pretreatment device for preparing ultrapure water. Background Art

[0002] With the advancement of science and technology, especially in the fields of microelectronics, semiconductors and biomedicine, the requirements for water quality are becoming increasingly stringent. These industries have extremely low tolerance for pollutants, and even trace amounts of impurities may seriously affect product performance and production efficiency. Therefore, the demand for pretreatment equipment that can effectively remove suspended matter, organic matter, microorganisms, hardness and other impurities is increasing day by day. However, existing pretreatment equipment still has the following defects:

[0003] 1. Existing pretreatment equipment usually adopts an integrated design, but the integrated design easily makes it impossible to replace the filter element after a period of use. Once the saturation point is reached, the filtering performance of the equipment will drop significantly, affecting the water quality. This means that the entire set of equipment may need to be replaced more frequently, increasing the cost and inconvenience of long-term use;

[0004] 2. Existing pretreatment equipment usually adopts traditional side water inflow filtration. The traditional filtration method makes the filter material more likely to form a channel effect (the gap between the filter material in some areas increases), resulting in reduced filtration effect, increased impurity penetration, and accelerated blockage. The utilization rate of the bottom filter material is not high, shortening the effective filtration cycle and increasing the frequency of backwashing or maintenance;

[0005] 3. Existing pre-treatment equipment filter elements usually use integral filter elements. Once the integral filter element reaches its service life or needs to be replaced due to contamination, it often needs to be replaced as a whole, which may increase long-term operating costs. Compared with regenerable or segmented cleaning filter elements, the cost of replacing the whole element is higher. Summary of the invention

[0006] The object of the present invention is to provide an easy-to-maintain pretreatment device for preparing ultrapure water, so as to overcome the above-mentioned defects in the prior art.

[0007] The present invention is achieved through the following technical solutions.

[0008] The present invention provides an easy-to-maintain pretreatment device for preparing ultrapure water, comprising a filter tank, a lower surface of which is fixedly connected with a lower cover body, the lower cover body is connected to the filter tank and forms a first cavity, a filter barrel is fixedly connected with the connection between the lower cover body and the filter tank, a fixed bottom plate is fixedly installed on the upper surface of the filter barrel, a fixed end block is fixedly installed on the upper surface of the fixed bottom plate, a barrel filter device is socket-installed on the upper surface of the fixed end block, the barrel filter device comprises an outer sleeve, a filter barrel is socket-installed inside the outer sleeve, a plurality of filter slots are arrayed on the surface of the filter barrel, a filter box is slidably installed on the surface of the filter slots provided in the array, and a fixed connection device is fixedly installed on the upper end of the filter barrel. There is an oblique connecting plate, the top of the oblique connecting plate is fixedly connected with the top of the outer sleeve, the outer sleeve is fixedly connected to the upper end of the oblique connecting plate and is provided with an upper fixed block, the surface of the upper fixed block is provided with a plurality of water outlet holes, and a water filter connecting pipe is fixedly connected above the water outlet holes, a circular bottom plate is provided above the water filter connecting pipe, a supporting block is fixedly installed on the middle surface of the circular bottom plate, a fixed inner plate is placed on the upper surface of the supporting block, a driving motor is fixedly installed inside the supporting block, the output end of the driving motor penetrates the surface of the fixed inner plate and is fixedly connected with a rotating fixed block, a brush is fixedly installed on the surface of the rotating fixed block, and an upper ring body is fixedly installed on the outer side of the fixed inner plate.

[0009] According to a further technical solution, a socket block is fixedly connected to the lower end of the filter barrel, a fixed end block is fixedly installed on the surface of the fixed bottom plate, a socket opening is provided on the middle surface of the fixed end block, and the socket opening forms a socket connection with the socket block.

[0010] According to a further technical solution, the circular bottom plate and the water filter connecting pipe are threadedly fixed by bolts, and a groove is provided on the surface of the upper ring body, and the groove is connected to the inside of the first cavity.

[0011] According to a further technical solution, a plurality of No. 2 sewage outlets are arranged in an array on the lower surface of the outer sleeve, a second cavity is formed between the outer sleeve and the filter barrel, and the second cavity is connected to the No. 2 sewage outlet.

[0012] According to a further technical solution, a thread groove is fixedly provided on the surface of the circular bottom plate, a cover body is threadedly connected above the thread groove, and a water inlet cavity is formed when the cover body and the thread groove are closed.

[0013] A further technical solution is that a clamping fixing block is fixedly provided on the upper surface of the fixed bottom plate, and side fixing blocks are symmetrically provided on the lower end surface of the filter barrel. The inner surfaces of the side fixing blocks form a limited fixation with the clamping fixing blocks, and a plurality of fixed support columns are arrayed on the lower surface of the fixed bottom plate. A drainage connecting pipe is penetrated through the inner side of the fixed support column, and the front end of the drainage connecting pipe forms a socket connection with the socket block and is connected to the inside of the filter barrel.

[0014] According to a further technical solution, a plurality of water filtering holes are arranged in an array on the surface of the fixed inner plate, and the water filtering holes are connected to the interior of the filter barrel.

[0015] According to a further technical solution, a plurality of placement blocks are arranged in an array on the lower surface of the lower cover body, a purification pipe is fixedly connected to the lower end of the lower cover body, and the purification pipe is connected to the drainage connecting pipe.

[0016] According to a further technical solution, the circular bottom plate and the water filter connecting pipe are threadedly fixed by bolts, and a groove is provided on the surface of the upper ring body, and the groove is connected to the inside of the first cavity.

[0017] According to a further technical solution, a sewage outlet No. 1 is fixedly provided on the surface of the lower section of the filter tank, and the sewage outlet No. 1 is connected to the interior of the first cavity. A water inlet is symmetrically installed on the upper surface of the cover body, and the water inlet is connected to the interior of the water inlet cavity.

[0018] Beneficial effects of the present invention:

[0019] The easy-to-maintain pretreatment equipment for ultrapure water preparation of the present invention has the advantage that the equipment can be disassembled in a split manner. This split design allows the equipment to be modularly disassembled, so that when performing maintenance or troubleshooting, specific components can be replaced or repaired in a targeted manner without shutting down the entire system, greatly improving the efficiency of maintenance work, and because only the damaged or expired components need to be replaced instead of the entire device, the cost of repairing and replacing components can be significantly reduced. The split design allows some components to be selectively updated or upgraded according to actual conditions, avoiding excessive consumption of resources, and the split structure facilitates the individual removal of each component for thorough cleaning and inspection to ensure that each part can reach the best working state, which is crucial to maintaining the quality of ultrapure water preparation, and as demand changes or technology advances, the split design makes it easier to upgrade or modify the equipment, such as adding new filtration stages or replacing more efficient filtration materials to adapt to different water quality standards or improve processing capacity.

[0020] In the present invention, an easy-to-maintain pretreatment device for preparing ultrapure water adopts a top-down filtering method. This filtering method follows the natural gravity effect, has a relatively simple design, is easy to understand and operate, and reduces the complexity of equipment installation and use. In the filtering process, heavier particles will naturally settle to the bottom, reducing the possibility of impurities accumulating on the surface of the filter bed, which helps to automatically remove some solid impurities and achieve a self-cleaning effect to a certain extent. Due to the simple design and structure, the manufacturing cost and maintenance cost of such equipment are relatively low, which is relatively friendly to initial investment and long-term operation. Moreover, for processing large amounts of water sources with large flow fluctuations, the top-down filtering method is usually better adapted because it can match the water inlet flow by adjusting the filtration speed, and in a multi-layer filtration system, each layer of filter material can focus on removing particles of a specific size. This gradually refined filtration process can efficiently remove impurities and improve the overall filtration performance. Compared with some filtration technologies that require high-pressure operation, the top-down filtration system has a lower operating pressure, which reduces the equipment failure rate and enhances the stability and reliability of the system.

[0021] In the easy-to-maintain pretreatment equipment for preparing ultrapure water of the present invention, a detachable split filter element is adopted, which allows the user to quickly remove the filter element for cleaning or replacement without replacing or disassembling the equipment as a whole, greatly simplifying the maintenance process, shortening the maintenance time, and reducing the maintenance cost. In addition, filter elements of different specifications or functions can be flexibly replaced according to the actual water quality or changes in treatment requirements, such as adding functional modules such as dechlorination, softening, and removal of organic matter, thereby improving the adaptability and treatment efficiency of the system. Regular replacement of the filter element can avoid the decline in the overall treatment capacity due to the failure of a certain filter layer, thereby ensuring the continuity of the system operation and the stability of the water quality. The separate filter element design allows each filter element to be taken out separately for thorough cleaning and inspection, which helps to discover and solve potential blockage or pollution problems and ensure the filtering effect. The split design is also simpler when the equipment is first installed or upgraded, and each filter element module can be combined as needed to adapt to different installation spaces and configuration requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall front view structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the overall side cross-sectional structure of the present invention;

[0026] Figure 4 It is a schematic diagram of the overall structure of the cylindrical filtering device in the present invention;

[0027] Figure 5 It is a front cross-sectional structural schematic diagram of the cylindrical filtering device of the present invention;

[0028] Figure 6 It is a schematic diagram of the overall structure of the circular bottom plate in the present invention;

[0029] Figure 7 It is a front view structural schematic diagram of the filter barrel in the present invention;

[0030] Figure 8 It is a side view structural schematic diagram of the filter barrel in the present invention;

[0031] Fig. 9 It is a schematic diagram of the overall structure of the filter barrel in the present invention;

[0032] In the attached figure: 11, filter tank; 12, purification pipe; 13, No. 1 sewage outlet; 14, water inlet; 15, first cavity; 16, second cavity; 17, outer sleeve; 18, filter barrel; 19, fixed bottom plate; 20, fixed support column; 21, drainage connecting pipe; 22, fixed end block; 23, socket; 24, clamping fixed block; 25, No. 2 sewage outlet; 26, socket block; 27, oblique connecting plate; 28, upper end fixed block; 29, outlet Water through hole; 30, water filter connecting pipe; 31, bolt; 32, water inlet chamber; 33, upper ring body; 34, fixed inner plate; 35, water filter through hole; 36, rotating fixed block; 37, brush; 38, trough body; 39, threaded groove; 40, circular bottom plate; 41, support block; 42, driving motor; 43, cover body; 44, lower cover body; 45, placement block; 46, filter trough; 47, filter box; 48, side fixing block; 49, cylinder filter device. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings, wherein, for the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.

[0034] Combined with Figure 1-Figure 9An easy-to-maintain pretreatment device for preparing ultrapure water comprises a filter tank 11, a lower cover body 44 is fixedly connected to the lower surface of the filter tank 11, the lower cover body 44 is connected to the filter tank 11 and forms a first cavity 15, a filter barrel 18 is fixedly connected to the connection between the lower cover body 44 and the filter tank 11, a fixed bottom plate 19 is fixedly installed on the upper surface of the filter barrel 18, a fixed end block 22 is fixedly installed on the upper surface of the fixed bottom plate 19, a cylindrical filter device 49 is installed on the upper surface of the fixed end block 22 in a socket-type manner, the cylindrical filter device 49 comprises an outer sleeve 17, a filter barrel 18 is installed in a socket-type manner inside the outer sleeve 17, a plurality of filter slots 46 are arranged in an array on the surface of the filter barrel 18, a filter box 47 is slidably installed on the surface of the filter slots 46 arranged in the array, and an inclined filter barrel 18 is fixedly connected to the upper end of the filter barrel 18 Toward the connecting plate 27, the top end of the oblique connecting plate 27 is fixedly connected with the top end of the outer sleeve 17, the outer sleeve 17 and the upper end of the oblique connecting plate 27 are fixedly connected with an upper fixed block 28, the surface of the upper fixed block 28 is provided with a plurality of water outlet holes 29, and a water filter connecting pipe 30 is fixedly connected above the water outlet holes 29, and a circular bottom plate 40 is provided above the water filter connecting pipe 30, and a supporting block 41 is fixedly installed on the middle surface of the circular bottom plate 40, a fixed inner plate 34 is placed on the upper surface of the supporting block 41, a driving motor 42 is fixedly installed inside the supporting block 41, and the output end of the driving motor 42 penetrates the surface of the fixed inner plate 34 and is fixedly connected with a rotating fixed block 36, a brush 37 is fixedly installed on the surface of the rotating fixed block 36, and an upper ring body 33 is fixedly installed on the outer side of the fixed inner plate 34.

[0035] A socket block 26 is fixedly connected to the lower end of the filter barrel 18, a fixed end block 22 is fixedly installed on the surface of the fixed bottom plate 19, a socket opening 23 is provided on the middle surface of the fixed end block 22, and the socket opening 23 forms a socket connection with the socket block 26.

[0036] The circular bottom plate 40 and the water filter connecting pipe 30 are threadedly fixed by bolts 31 , and a groove 38 is provided on the surface of the upper ring body 33 , and the groove 38 is connected to the inside of the first cavity 15 .

[0037] A plurality of No. 2 sewage outlets 25 are arranged in an array on the lower surface of the outer sleeve 17 , and a second cavity 16 is formed between the outer sleeve 17 and the filter barrel 18 , and the second cavity 16 is connected to the No. 2 sewage outlet 25 .

[0038] A thread groove 39 is fixedly provided on the surface of the circular bottom plate 40 , and a cover body 43 is threadedly connected above the thread groove 39 . The cover body 43 and the thread groove 39 are closed to form a water inlet cavity 32 .

[0039] A clamping fixing block 24 is fixedly arranged on the upper surface of the fixed bottom plate 19, and a side fixing block 48 is symmetrically arranged on the lower end surface of the filter barrel 18. The inner surface of the side fixing block 48 forms a limiting fixation with the clamping fixing block 24. A plurality of fixed support columns 20 are arranged in an array on the lower surface of the fixed bottom plate 19. A drainage connecting pipe 21 is penetrated through the inner side of the fixed support column 20. The front end of the drainage connecting pipe 21 forms a socket connection with the socket block 26 and is connected to the inside of the filter barrel 18.

[0040] A plurality of water filtering holes 35 are arranged in an array on the surface of the fixed inner plate 34 , and the water filtering holes 35 are connected to the interior of the filter barrel 18 .

[0041] A plurality of placement blocks 45 are arranged in an array on the lower surface of the lower cover body 44 . A purification pipe 12 is fixedly connected to the lower end of the lower cover body 44 . The purification pipe 12 is connected to the drainage connection pipe 21 .

[0042] The circular bottom plate 40 and the water filter connecting pipe 30 are threadedly fixed by bolts 31 , and a groove 38 is provided on the surface of the upper ring body 33 , and the groove 38 is connected to the inside of the first cavity 15 .

[0043] A first sewage outlet 13 is fixedly provided on the lower surface of the filter tank 11 , and the first sewage outlet 13 is connected to the interior of the first cavity 15 . A water inlet 14 is symmetrically installed on the upper surface of the cover body 43 , and the water inlet 14 is connected to the interior of the water inlet cavity 32 .

[0044] The specific installation steps of this embodiment are:

[0045] When using the present invention, first connect the water inlet 14, purification pipe 12 and No. 1 sewage outlet 13 provided in the present invention with the overall equipment pipeline, and then start the power supply of the present invention and the external water pump power supply, and then when the external water pump transports water to the inside of the equipment through the water inlet 14, the water will then enter the water inlet chamber 32, and then the drive motor 42 arranged in the water inlet chamber 32 will drive the brush 37 to rotate to first perform a preliminary physical filtration on the transported water, and start sweeping and cleaning the oversized solid particles and other solid objects, and then when the solids filtered by the fixed inner plate 34 are swept to the trough 38 by the brush 37, and when the trough 38 starts to sweep, it flows to the first cavity 15, and then the water in the first cavity 15 flows through the fluidity, and the solid particles flow to the outside of the equipment through the water flow, and when the water enters the water inlet chamber 32 from the water inlet 14, it flows to the filter barrel 18 through the water filter hole 35.

[0046] When the water starts to enter the filter barrel 18, the water first undergoes preliminary filtration from the filter box 47 provided on the upper inner side of the filter barrel 18. After the filtration in the filter box 47 provided on the upper inner side is completed, the water begins to flow to the filter box 47 provided in the middle inner side by gravity. After the water flows out from the middle inner side of the filter box 47, it begins to pass through the socket block 26 from the lower inner side and flows to the inner side of the drainage connecting pipe 21 and finally enters the next device for refined filtration.

[0047] When the filter barrel 18 provided inside the device needs to be replaced after being used for a period of time, the water inlet 14 provided on the upper end of the cover body 43 can be removed first, and then the cover body 43 can be separated from the filter tank 11 by twisting the cover body 43 in the opposite direction. After the cover body 43 is separated, the fixed inner plate 34 can be taken out as a whole, and then the bolts 31 on the surface of the circular bottom plate 40 are screwed to separate the circular bottom plate 40 from the upper fixed block 28. After the separation is completed, the filter barrel 18 can be pulled out as a whole. After the filter barrel 18 is taken out, the cover body 43 provided on the surface of the filter barrel 18 can be pulled out for inspection. , pull out and replace the cover body 43 provided at the upper end, pull out and replace the cover body 43 provided at the lower section, and insert the newly provided cover body 43 into the vacant position. After the replacement is completed, put the filter barrel 18 back, and ensure that the socket block 26 and the drainage connecting pipe 21 are in the correct socket position, and align the side fixing block 48 with the clamping fixing block 24. After confirmation, the circular bottom plate 40 can be connected to the upper fixing block 28 and fixed with bolts 31. Then, the fixed inner plate 34 is put back and covered with the cover body 43, so that the equipment is assembled and finally the water inlet 14 is connected to the outer pipe.

[0048] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. An easy-to-maintain pretreatment device for preparing ultrapure water, comprising a filter tank, a lower surface of which is fixedly connected with a lower cover body, the lower cover body is connected to the filter tank and forms a first cavity, a filter barrel is fixedly connected at the connection between the lower cover body and the filter tank, a fixed bottom plate is fixedly installed on the upper surface of the filter barrel, a fixed end block is fixedly installed on the upper surface of the fixed bottom plate, a barrel filter device is installed on the upper surface of the fixed end block in a socket-inserted manner, the barrel filter device includes an outer sleeve, a filter barrel is installed in a socket-inserted manner inside the outer sleeve, a plurality of filter slots are arrayed on the surface of the filter barrel, a filter box is slidably installed on the surface of the filter slots in the array, and a fixed connection is provided on the upper end of the filter barrel An oblique connecting plate, the top of the oblique connecting plate is fixedly connected with the top of the outer sleeve, the outer sleeve is fixedly connected to the upper end of the oblique connecting plate and is provided with an upper fixed block, the surface of the upper fixed block is provided with a plurality of water outlet holes, and a water filter connecting pipe is fixedly connected above the water outlet holes, a circular bottom plate is provided above the water filter connecting pipe, a supporting block is fixedly installed on the middle surface of the circular bottom plate, a fixed inner plate is placed on the upper surface of the supporting block, a driving motor is fixedly installed inside the supporting block, the output end of the driving motor penetrates the surface of the fixed inner plate and is fixedly connected with a rotating fixed block, a brush is fixedly installed on the surface of the rotating fixed block, and an upper ring body is fixedly installed on the outer side of the fixed inner plate.

2. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 1, characterized in that: A socket block is fixedly connected to the lower end of the filter barrel, a fixed end block is fixedly installed on the surface of the fixed bottom plate, a socket opening is provided on the middle surface of the fixed end block, and the socket opening forms a socket connection with the socket block.

3. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 2, characterized in that: The circular bottom plate and the water filter connecting pipe are threadedly fixed by bolts, and a groove is provided on the surface of the upper ring body, and the groove is connected with the inside of the first cavity.

4. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 1, characterized in that: A plurality of No. 2 sewage outlets are arranged in an array on the lower end surface of the outer sleeve, a second cavity is formed between the outer sleeve and the filter barrel, and the second cavity is connected to the No. 2 sewage outlet.

5. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 3, characterized in that: A thread groove is fixedly provided on the surface of the circular bottom plate, a cover body is threadedly connected above the thread groove, and a water inlet cavity is formed when the cover body and the thread groove are closed.

6. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 5, characterized in that: A clamping fixing block is fixedly provided on the upper surface of the fixed bottom plate, and side fixing blocks are symmetrically provided on the lower end surface of the filter barrel. The inner surfaces of the side fixing blocks form a limited fixation with the clamping fixing blocks. A plurality of fixed support columns are arrayed on the lower surface of the fixed bottom plate. A drainage connecting pipe is penetrated through the inner side of the fixed support column. The front end of the drainage connecting pipe forms a socket connection with the socket block and is connected to the inside of the filter barrel.

7. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 6, characterized in that: The fixed inner plate surface array is provided with a plurality of water filtering through holes, and the water filtering through holes are connected with the interior of the filter barrel.

8. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 7, characterized in that: A plurality of placement blocks are arranged in an array on the lower surface of the lower cover body, and a purification pipe is fixedly connected to the lower end of the lower cover body, and the purification pipe is connected to the drainage connection pipe.

9. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 8, characterized in that: The circular bottom plate and the water filter connecting pipe are threadedly fixed by bolts, and a groove is provided on the surface of the upper ring body, and the groove is connected with the inside of the first cavity.

10. The easy-to-maintain pretreatment equipment for preparing ultrapure water according to claim 9, characterized in that: A sewage outlet No. 1 is fixedly provided on the surface of the lower section of the filter tank, and the sewage outlet No. 1 is connected to the interior of the first cavity. A water inlet is symmetrically installed on the upper surface of the cover body, and the water inlet is connected to the interior of the water inlet cavity.

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