Novel candle filter

Abstract

The utility model provides a novel candle type filter. The filter comprises a filter shell, a filter top cover, a filter bottom cover, a filter element inserted on the filter top cover, and a bag type inner bag sleeved outside the filter element, the filter top cover and the filter bottom cover are connected to the upper end and the lower end of the filter shell through hoops respectively, and the open end of the bag type inner bag is clamped between the filter shell and the filter top cover. When the filter element needs to be replaced, the filter element can be pulled out from the outside of the bag-type inner bag, and then the top of the bag-type inner bag is hooped, so that the operation is completed at a time, the operation is convenient, zero contact with a high-risk medium is realized, and the use safety of the filter is improved; liquid in the filter and liquid in a filter cake on the surface of a wrapped filter element can be completely extruded out of a clear liquid outlet by utilizing the bladder type inner bag, so that material waste is avoided; the filter adopts a quick-release structure up and down, so that the disassembly and assembly are convenient, and the maintenance and disassembly convenience is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a novel candle filter. Background Technology

[0002] Candle filters are closed-loop, highly efficient, high-precision, safe, reliable, and easy-to-maintain filtration products. They can be integrated with valves, instruments, and electrical controls to form an intelligent, fully automatic, self-cleaning filtration system. Candle filters are widely used in various industrial fields such as petrochemicals, electronics and semiconductors, food and beverage, and pharmaceuticals. Candle filters automatically remove particles from liquids or gases, forming a filter cake that is discharged. The filter element can automatically regenerate without system shutdown. They feature full automation, continuous operation, reduced manual cleaning, and no need to replace filter elements, making them widely used in continuous production, high-risk operating environments, and situations where sticky impurities are unsuitable for ordinary metal filter cartridges.

[0003] Traditional candle filters currently have several shortcomings: for high-risk media, personnel may come into contact with the media during filter element replacement, posing a safety risk; filter elements are prone to clogging, resulting in poor regeneration and short element lifespan; backwashing causes significant material loss, resulting in substantial waste for customers; filtration accuracy and efficiency are not high, failing to meet customers' requirements for fine filtration; the equipment structure is complex, making maintenance and repair cumbersome and time-consuming; and the sealing performance of the equipment and filter elements is not high, affecting the filtration effect. Utility Model Content

[0004] The purpose of this utility model is to disclose a novel candle filter with good sealing effect and high filtration accuracy. When the filter element needs to be replaced, it can be pulled out from the outside of the capsule-shaped inner bag, and then the top of the capsule-shaped inner bag is tightened in one go, which is convenient to operate and achieves zero contact with high-risk media, thus improving the safety of filter use. The capsule-shaped inner bag can squeeze all the liquid in the filter and the liquid in the filter cake on the surface of the filter element out of the clear liquid outlet, avoiding material waste. The filter adopts a quick-release structure at the top and bottom, which is convenient to disassemble and assemble, greatly improving the convenience of maintenance and disassembly.

[0005] To achieve the above objectives, this utility model provides a novel candle filter, which includes a filter housing, a filter top cover, a filter bottom cover, a filter element inserted into the filter top cover, and a bladder-type inner bag fitted over the filter element; the filter top cover and the filter bottom cover are respectively connected to the upper and lower ends of the filter housing by clamps, and the open end of the bladder-type inner bag is clamped between the filter housing and the filter top cover.

[0006] In some embodiments, the filter top cover is provided with a socket, the filter element insertion end is provided with a first sealing ring, the filter element is inserted into the socket, and the first sealing ring is in a compressed state.

[0007] In some embodiments, the open end of the pouch is provided with a second sealing ring, which is in a compressed state.

[0008] In some embodiments, the filter top cover and filter housing compression surface, as well as the filter bottom cover and filter housing compression surface, are all provided with a third sealing ring.

[0009] In some embodiments, the second sealing ring is hollow, and a pull cord is provided inside the second sealing ring.

[0010] In some embodiments, the filter top cover has a raw liquid inlet and a clear liquid outlet, the raw liquid inlet is connected to the inner bag, and the clear liquid outlet is connected to the filter element outlet.

[0011] In some embodiments, the raw liquid inlet is connected to an external inlet pipe, the clear liquid outlet is connected to an external outlet pipe, and the filter bottom cover is provided with an air inlet pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a novel candle filter with good sealing effect and high filtration accuracy. When the filter element needs to be replaced, it can be pulled out from the outside of the capsule-shaped inner bag, and then the top of the capsule-shaped inner bag can be tightened in one go, which is convenient to operate and achieves zero contact with high-risk media, thus improving the safety of filter use. The capsule-shaped inner bag can squeeze all the liquid in the filter and the liquid in the filter cake on the surface of the filter element into the clear liquid outlet, avoiding material waste. The filter adopts a quick-release structure at the top and bottom, which is convenient to disassemble and assemble, greatly improving the convenience of maintenance and disassembly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a novel candle filter according to the present invention. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0015] like Figure 1The present invention discloses a novel candle filter, comprising a filter housing 1, a filter top cover 2, and a filter bottom cover 3. The filter top cover 2 is connected to the upper end of the filter housing 1 by a clamp 42, and the filter bottom cover 3 is connected to the lower end of the filter housing 1 by a clamp 41. The device has a simple structure, and the filter adopts a quick-release structure at both ends, making disassembly and assembly convenient and greatly improving the convenience of maintenance and disassembly.

[0016] The filter top cover 2 and filter housing 1 are provided with a third sealing ring 12 on their pressing surfaces, and the filter bottom cover 3 and filter housing 1 are provided with a third sealing ring 11 on their pressing surfaces, which improves the sealing performance of the filter and ensures the filtration effect.

[0017] The filter top cover 2 has a raw liquid inlet 21 and a clear liquid outlet 22. The raw liquid inlet 21 is connected to the inner bag 5, and the clear liquid outlet 22 is connected to the filter element outlet 62. The raw liquid inlet 21 is externally connected to an inlet pipe 23, and the clear liquid outlet 22 is externally connected to an outlet pipe 24. The filter bottom cover 3 has an air inlet pipe 31 for introducing compressed air.

[0018] The filter is equipped with a filter element 6, which is a high-efficiency and high-precision filter element with a filtration accuracy of up to 0.1 micrometers and a filtration efficiency of 99.9%.

[0019] The filter top cover 2 has a socket into which the filter element 6 is inserted, making installation and removal convenient and allowing it to be easily removed from the outside of the inner bag 5. The filter element 6 has a first sealing ring 61, which is compressed by the filter element 6 and the inner wall of the socket, thus improving the filter's sealing performance and ensuring the filtration effect.

[0020] It also includes a capsule-shaped inner bag 5 that covers the outside of the filter element 6. The capsule-shaped inner bag 5 is a flexible, acid and alkali resistant plastic bag, suitable for various hazardous media. The capsule-shaped inner bag 5 has a large volume, which facilitates filtration and self-cleaning.

[0021] The open end of the inner bag 5 is clamped between the filter housing 1 and the filter top cover 2. The open end of the inner bag 5 is provided with a second sealing ring 52. The second sealing ring 52 is squeezed by the filter housing 1 and the filter top cover 2 and is in a squeezed state, which improves the sealing performance of the filter and ensures the filtration effect.

[0022] The second sealing ring 52 is hollow, and a pull rope is provided inside the second sealing ring 52, similar to the structure of a pull rope garbage bag, which can quickly tighten the top of the inner bag 5.

[0023] By employing a multi-seal structure consisting of a first sealing ring 61, a second sealing ring 52, a third sealing ring 11, and a third sealing ring 12, the sealing effect of the filter is ensured.

[0024] During self-cleaning of the filter element 6, under the action of compressed gas, the inner bag 5 contracts towards the filter element 6, squeezing out all the liquid remaining in the inner bag 5 and the liquid in the filter cake on the surface of the filter element 6, thus avoiding material waste.

[0025] The medium enters the filter housing 1 from the raw liquid inlet 21. Under pressure, the inner bag 5 expands and adheres tightly to the inner wall of the filter housing 1. It is filtered from the outside to the inside through the filter element 6. Impurities are intercepted on the surface of the filter element 6. The filtered clear liquid flows out through the filter element outlet 62 into the clear liquid outlet 22.

[0026] When the pressure difference between the filter inlet and outlet reaches the set value, the filter needs to self-clean to regenerate the filter element 6. The raw liquid inlet valve 21 is shut off, reducing the medium volume in the inner bag 5. Compressed air is introduced through the air inlet pipe 31, causing the inner bag 5 to contract inwards and wrap around the filter element 6. All residual liquid inside the inner bag 5 and liquid in the filter cake on the surface of the filter element 6 are squeezed out through the clear liquid outlet 22, avoiding waste of user materials and reducing the moisture content of the filter cake on the outer surface of the filter element 6, thereby improving the efficiency of backflushing and cake removal. After all the liquid is squeezed out of the filter, the gas intake through the air inlet pipe 31 is stopped, and compressed air or clean liquid is introduced through the clear liquid outlet 22 to backflush or backwash the filter element 6, causing the filter cake on the outer surface of the filter element 6 to fall off, thus regenerating the filter element 6. The filter, while maintaining its filtration performance, incorporates a self-cleaning function, thereby extending the service life of the filter element 6.

[0027] When filter element 6 reaches the end of its service life and needs to be replaced, the clamp 41 can be opened, the filter bottom cover 3 and the third sealing ring 11 can be removed, and the filter element 6 along with the first sealing ring 61 can be removed from the outside of the inner bag 5. The top clamp 42 can be opened, and the second sealing ring 52 can be removed from the top cover 2 of the filter. The pull rope of the second sealing ring 52 can be used to tighten the top of the inner bag 5. The filter element 6 inside the bag can be discarded or sent to a safe area for cleaning. This process is quick and easy, achieving zero contact with high-risk media and improving the safety of filter use. After cleaning the filter parts, a brand new inner bag 5 and filter element 6 can be installed.

[0028] The detailed descriptions listed above are merely specific descriptions of feasible implementations of this utility model, and are not intended to limit the scope of protection of this utility model. All equivalent implementations or modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A new candle filter characterized in that, The filter comprises a filter shell, a filter top cover, a filter bottom cover, a filter element inserted into the filter top cover, and a bag-type inner bag sleeved outside the filter element; the filter top cover and the filter bottom cover are connected to the upper and lower ends of the filter shell respectively via hoops; and the open end of the bag-type inner bag is clamped between the filter shell and the filter top cover.

2. The novel candle filter according to claim 1, characterized in that, The filter top cover is provided with a socket, the filter element is inserted into the socket, and a first sealing ring is arranged on the inserted end of the filter element.

3. The novel candle filter according to claim 2, characterized in that, The open end of the bag-type inner bag is provided with a second sealing ring, and the second sealing ring is in a squeezed state.

4. The novel candle filter according to claim 3, characterized in that, The filter top cover and the filter shell are provided with a third sealing ring on the pressing surface.

5. The novel candle filter according to claim 3, characterized in that, The second sealing ring is hollow, and a pull rope is arranged inside the second sealing ring.

6. The novel candle filter according to claim 1, characterized in that, The filter top cover is provided with a raw liquid inlet and a clear liquid outlet, the raw liquid inlet is communicated with the bag-type inner bag, and the clear liquid outlet is communicated with the outlet of the filter element.

7. The candle filter of claim 6, wherein The raw liquid inlet is connected with a liquid inlet pipe, the clear liquid outlet is connected with a liquid outlet pipe, and the filter bottom cover is provided with an air inlet pipe.

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