Corrosion-resistant filtering equipment

Abstract

The utility model discloses corrosion-resistant filtering equipment. The corrosion-resistant filtering equipment comprises a filter cartridge and a filtering device arranged in the filter cartridge, a sealing cover is arranged at the top of the filter cartridge; the filtering device comprises a first filtering cylinder and a second filtering cylinder; a sealing plug is arranged at the top of the first filter cartridge; the second filter cartridge is arranged in the first filter cartridge; anti-corrosion coatings are sprayed on the inner walls of the filter cartridges and the inner and outer surfaces of the first filter cartridge and the second filter cartridge; and supporting legs are arranged at the bottom of the filter cartridge. According to the corrosion-resistant filtering equipment disclosed by the utility model, the first corrosion-resistant layer and the second corrosion-resistant layer are arranged in the filter, so that corrosion can be effectively avoided, the filtering effect is improved, and the service life of the equipment is prolonged; moreover, the filtering equipment is simple to mount and dismount, the filter is convenient to dismount and replace in time, and the filtering efficiency of the filter is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a corrosion-resistant filtering equipment. Background Art

[0002] The filter is an indispensable device on the pipeline for conveying media. It is usually installed at the inlet end of the pressure reducing valve, pressure relief valve, water level valve, and other equipment of Fanggong filter. The filter consists of a cylinder, a stainless steel filter screen, a sewage discharge part, a transmission device, and an electrical control part. After the water to be treated passes through the filter cartridge of the filter screen, its impurities are blocked. When it needs to be cleaned, just take out the detachable filter cartridge, treat it, and reinstall it. Therefore, it is extremely convenient to use and maintain. Filtration technology has been applied to production in ancient China. Paper made of plant fibers has existed since 200 BC. In 105 AD, Cai Lun improved the papermaking method. During the papermaking process, he swung plant fiber pulp on a dense and fine bamboo curtain. Water was filtered through the gaps in the bamboo curtain, and a thin layer of wet pulp remained on the surface of the bamboo curtain, which became paper after drying. Most of the earliest filtration was gravity filtration. Later, pressurized filtration was used to increase the filtration speed, and then vacuum filtration appeared. The rotary drum vacuum filter invented in the early 20th century realized the continuous filtration operation. Since then, various types of continuous filters have appeared one after another. Intermittently operated filters (such as plate and frame filter presses) have been developed because they can be operated automatically, and the filtration area is getting larger and larger. In order to obtain filter residues with low moisture content, mechanical pressing filters have been developed.

[0003] Due to the use environment and the filtered liquid itself, the inside of the filter is corroded, affecting the filtering effect; excessive accumulation of impurities in the water can easily clog the filter, requiring frequent flushing of the filter, affecting the filtering efficiency; some filters have unreasonable structural design, so it is troublesome to disassemble the filter and clean the filter residue, affecting the filtering efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a corrosion-resistant filtering device, wherein a first corrosion-resistant layer and a second corrosion-resistant layer are arranged inside the filter to effectively avoid corrosion, thereby improving the filtering effect and extending the service life of the device; and the filtering device is simple to install and disassemble, which facilitates the timely disassembly and replacement of the filter and improves the filtering efficiency of the filter.

[0005] To achieve the above-mentioned purpose, the utility model provides a corrosion-resistant filtering device, including a filter cartridge and a filtering device arranged inside the filter cartridge; a sealing cover is arranged on the top of the filter cartridge; the filtering device includes a first filter cartridge and a second filter cartridge; a sealing plug is arranged on the top of the first filter cartridge; the second filter cartridge is arranged inside the first filter cartridge; the inner wall of the filter cartridge and the inner and outer surfaces of the first filter cartridge and the second filter cartridge are sprayed with an anti-corrosion coating; and a supporting leg is arranged at the bottom of the filter cartridge.

[0006] Preferably, a first filter cavity is formed between the filter cartridge and the first filter cartridge; a handle extending into the interior of the sealing cover is provided at the top of the sealing plug; and a second sealing ring is provided at the bottom of the sealing plug.

[0007] Preferably, a second filter cavity is formed between the first filter cartridge and the second filter cartridge; a placement block is symmetrically arranged at the bottom of the second filter cartridge, and a groove is arranged on the side of the top of the placement block away from each other, and the groove is adapted to the second filter cartridge.

[0008] Preferably, a third filter cavity is formed inside the second filter cartridge.

[0009] Preferably, a liquid inlet is provided at the bottom left side of the filter cartridge; a liquid outlet is provided in the middle of the bottom of the filter cartridge, and the liquid outlet is communicated with the third filter chamber; the filter cartridge and the sealing cover are connected by threads; and a first sealing ring is provided at the connection between the filter cartridge and the sealing cover.

[0010] Preferably, a handle is provided in the middle of the top of the sealing cover, a pressure gauge is provided on the right side of the handle, and a pressurizing port is provided on the left side of the handle.

[0011] Preferably, the inner wall of the filter cartridge, the inner and outer surfaces of the first filter cartridge and the second filter cartridge are all sprayed with a first corrosion-resistant layer, and the surface of the first corrosion-resistant layer is sprayed with a second corrosion-resistant layer.

[0012] Preferably, the pore size of the second filter cartridge is smaller than the pore size of the first filter cartridge.

[0013] Therefore, the utility model adopts the above-mentioned corrosion-resistant filtering equipment, and the first corrosion-resistant layer and the second corrosion-resistant layer are arranged inside the filter to effectively avoid corrosion, improve the filtering effect, and extend the service life of the equipment; and the filtering equipment is simple to install and disassemble, which is convenient for timely disassembly and replacement of the filter, thereby improving the filtering efficiency of the filter.

[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of a corrosion-resistant filtering device of the utility model;

[0016] Figure 2 It is a structural schematic diagram of A of an embodiment of a corrosion-resistant filtering device of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a filter cartridge of an embodiment of a corrosion-resistant filtering device of the utility model;

[0018] Figure 4It is a structural schematic diagram of a first filter cartridge of an embodiment of a corrosion-resistant filtering device of the utility model.

[0019] Reference numerals

[0020] 1. Filter cartridge; 2. First filter chamber; 3. First filter cartridge; 4. Second filter chamber; 5. Second filter cartridge; 6. First sealing ring; 7. Pressure gauge; 8. Handle; 9. Handle; 10. Pressurization port; 11. Thread; 12. Second sealing ring; 13. Placement block; 14. Groove; 15. Sealing plug; 16. Support leg; 17. Liquid inlet; 18. Liquid outlet; 19. First corrosion-resistant layer; 20. Second corrosion-resistant layer; 21. Third filter chamber; 22. Sealing cover. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described below through the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figure 1 and Figure 2As shown, the utility model provides a corrosion-resistant filtering device, including a filter cartridge 1 and a filtering device arranged inside the filter cartridge 1. A sealing cover 22 is arranged on the top of the filter cartridge 1, and the filter cartridge 1 and the sealing cover 22 are connected by a thread 11. The internal filtering device can be taken out for cleaning or replacement by unscrewing the sealing cover 22. After the replacement is completed, the sealing cover 22 can be tightened and put into use immediately. The installation and disassembly are simple, which is convenient for timely disassembly and replacement of the filter, and improves the filtering efficiency of the filter. A first sealing ring 6 is arranged at the connection between the filter cartridge 1 and the sealing cover 22. The first sealing ring 6 can connect the auxiliary sealing cover 22 to the filter cartridge 1 more tightly to prevent liquid leakage and gas leakage during the filtering process. A handle 9 is arranged in the middle of the top of the sealing cover 22. The staff can hold the handle 9 to open or close the sealing cover 22 for easy operation. A pressure gauge 7 is arranged on the right side of the handle 9. The pressure gauge can reflect the pressure inside the filter cartridge 1 in real time, ensure sufficient pressure, improve filtering efficiency, and release the air in time when the pressure is too high to avoid danger. A pressurizing port 10 is provided on the left side of the handle 9. When the liquid to be filtered passes through the filter screen, a certain amount of pressure needs to be added to assist the liquid to be filtered as quickly as possible. Therefore, the staff can decide whether to pressurize or release the pressure through the pressurizing port 10 according to the indication of the pressure gauge 7. A liquid inlet 17 is provided at the bottom of the left side of the filter cartridge 1. The liquid to be filtered is fed into the filter cartridge 1 through the liquid inlet 17. A liquid outlet 18 is provided in the middle of the bottom of the filter cartridge 1. The filtered liquid flows out of the filter cartridge 1 through the liquid outlet and is collected. Figure 3 As shown, the inner wall of the filter cartridge 1 is sprayed with a first corrosion-resistant layer 19, and the surface of the first corrosion-resistant layer 19 is sprayed with a second corrosion-resistant layer 20. The double-layer anti-corrosion layer can reduce the degree of corrosion on the inner surface of the filter cartridge and extend the service life of the filter cartridge 1. The bottom of the filter cartridge 1 is provided with a support leg 16, which supports the entire filter device and facilitates the installation of a conduit at the liquid outlet 18 to guide the liquid out.

[0024] The filtering device includes a first filter cartridge 3 and a second filter cartridge 5. The first filter cartridge 3 is arranged inside the filter cartridge 1, and a first filter chamber 2 is formed between the first filter cartridge 3 and the filter cartridge 1. The liquid entering through the liquid inlet 17 first enters the first filter chamber 2, and then passes through the first filter cartridge 3 for the first filtration. A sealing plug 15 is arranged on the top of the first filter cartridge 3. The sealing plug 15 is slidably connected to the inside of the first filter cartridge 3, so that the first filter cartridge 3 can be firmly sealed to prevent liquid leakage and air leakage, etc. The sliding connection is convenient for opening and closing, and the filtering efficiency can be improved. A handle 8 is arranged on the top of the sealing plug 15, which extends into the inside of the sealing cover 22. After the staff opens the sealing cover 22, they can open the first filter cartridge 3 by holding the handle 8. After opening, the second filter cartridge 5 inside the first filter cartridge 3 can be taken out for cleaning and replacement, which is convenient for opening the first filter cartridge 3 and can prevent the staff from getting their hands dirty. A second sealing ring 12 is arranged on the bottom of the sealing plug 15. The second sealing ring 12 helps the sealing plug 15 to seal the first filter cartridge 3 more tightly, prevent leakage during the filtration process, and prevent the unfiltered liquid from mixing with the liquid filtered in the first pass. Figure 4 As shown, the inner and outer surfaces of the first filter cartridge 3 are sprayed with a first corrosion-resistant layer 19, and the surface of the first corrosion-resistant layer 19 is sprayed with a second corrosion-resistant layer 20. The double-layer anti-corrosion layer is sprayed on the surface of the filter screen, which will not block the filter holes of the first filter cartridge 3, but also extend the service life of the first filter cartridge 3 and prevent it from being corroded during the filtration process, affecting the filtration effect.

[0025] The second filter cartridge 5 is arranged inside the first filter cartridge 3. The aperture of the second filter cartridge 5 is smaller than that of the first filter cartridge 3, so that the liquid can be further and more carefully filtered, ensuring that the filtered liquid has fewer impurities and improving the filtering effect. A second filter chamber 4 is formed between the first filter cartridge 3 and the second filter cartridge 5. The liquid filtered by the first filter cartridge 3 enters the second filter chamber 4, and then further filtered by the second filter cartridge 5. The bottom of the second filter cartridge 5 is symmetrically provided with a placement block 13, and a groove 14 is provided on the side away from each other at the top of the placement block 13. The groove 14 is adapted to the second filter cartridge 5. The bottom of the second filter cartridge 5 can be inserted into the groove 14, and the second filter cartridge 5 is limited to avoid filtering failure caused by improper placement. A third filter chamber 21 is formed inside the second filter cartridge 5. The liquid filtered by the second filter cartridge 5 enters the third filter chamber 21. The third filter chamber 21 is connected to the liquid outlet 18. The liquid filtered by the third filter chamber 21 can flow out along the liquid outlet 18 to complete the subsequent operations. The inner and outer surfaces of the second filter cartridge 5 are sprayed with a first corrosion-resistant layer 19, and the surface of the first corrosion-resistant layer 19 is sprayed with a second corrosion-resistant layer 20. The double corrosion-resistant layers can effectively prevent the second filter cartridge 5 from being corroded, thereby improving the filtering effect and extending the service life of the equipment.

[0026] Therefore, the utility model adopts the above-mentioned corrosion-resistant filtering equipment, and the first corrosion-resistant layer and the second corrosion-resistant layer are arranged inside the filter to effectively avoid corrosion, improve the filtering effect, and extend the service life of the equipment; and the filtering equipment is simple to install and disassemble, which is convenient for timely disassembly and replacement of the filter, thereby improving the filtering efficiency of the filter.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that they can still modify or replace the technical solution of the utility model with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the utility model.

Claims

1. A corrosion-resistant filtering device, characterized in that: It comprises a filter cartridge and a filtering device arranged inside the filter cartridge; a sealing cover is arranged on the top of the filter cartridge; the filtering device comprises a first filter cartridge and a second filter cartridge; a sealing plug is arranged on the top of the first filter cartridge; the second filter cartridge is arranged inside the first filter cartridge; the inner wall of the filter cartridge and the inner and outer surfaces of the first filter cartridge and the second filter cartridge are sprayed with an anti-corrosion coating; and a supporting leg is arranged at the bottom of the filter cartridge.

2. A corrosion-resistant filtering device according to claim 1, characterized in that: A first filter cavity is formed between the filter cartridge and the first filter cartridge; a handle extending into the interior of the sealing cover is arranged on the top of the sealing plug; and a second sealing ring is arranged on the bottom of the sealing plug.

3. A corrosion-resistant filtering device according to claim 2, characterized in that: A second filter cavity is formed between the first filter cartridge and the second filter cartridge; a placement block is symmetrically arranged at the bottom of the second filter cartridge, and a groove is arranged on the side of the top of the placement block away from each other, and the groove is adapted to the second filter cartridge.

4. A corrosion-resistant filtering device according to claim 3, characterized in that: A third filter cavity is formed inside the second filter cartridge.

5. A corrosion-resistant filtering device according to claim 4, characterized in that: A liquid inlet is arranged at the bottom of the left side of the filter cartridge; a liquid outlet is arranged in the middle of the bottom of the filter cartridge, and the liquid outlet is communicated with the third filter chamber; the filter cartridge is connected to the sealing cover by threads; a first sealing ring is arranged at the connection between the filter cartridge and the sealing cover.

6. A corrosion-resistant filtering device according to claim 5, characterized in that: A handle is arranged in the middle of the top of the sealing cover, a pressure gauge is arranged on the right side of the handle, and a pressurizing port is arranged on the left side of the handle.

7. The corrosion-resistant filtering device according to claim 1, characterized in that: The inner wall of the filter cartridge, the inner and outer surfaces of the first filter cartridge and the second filter cartridge are all sprayed with a first corrosion-resistant layer, and the surface of the first corrosion-resistant layer is sprayed with a second corrosion-resistant layer.

8. The corrosion-resistant filtering device according to claim 7, characterized in that: The pore size of the second filter cartridge is smaller than the pore size of the first filter cartridge.

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