A double-barrel pre-filter

Abstract

The utility model relates to double -barrelled prefilter, including the cylinder, sets up two, two cylinder connects same water inlet pipe, the water hole is established in one end of cylinder, filter cartridge, set up in cylinder, the filter hole is established on filter cartridge, filter core, set up in filter cartridge, filter core is cylindrical and is provided with water purification hole, the orifice of water purification hole one end bears filter cartridge, the orifice of water purification hole other end intercommunication water hole, wherein, the liquid in water inlet pipe flows into cylinder, along filter hole enters filter cartridge, then passes through the interstice of filter core and enters water purification hole, finally flows out along water hole, the utility model discloses through twice filtration guarantee to the filtration effect of waste water, and the double -barrelled quality filter in the application, two cylinder parallelism carries out filtration simultaneously, improves the flow of waste water in unit time, improves the filtration efficiency of waste water.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a dual-cylinder pre-filter. Background Technology

[0002] The processes of silicon wafer cutting and cleaning require a large amount of water and generate a significant amount of wastewater, which contains silicon wafer powder. Filtering and reusing this wastewater, for example, by reusing it for machining and rinsing, can increase the water resource recycling rate to 50%-100%, reduce water costs, and promote the industry towards a greener and more economical direction.

[0003] The filtration speed of a single cartridge filter is limited by the structure and area of ​​the filter media. Especially when treating large volumes of wastewater, insufficient filtration speed leads to prolonged wastewater treatment cycles. In addition, high-turbidity wastewater easily clogs the filter cartridge with filtered impurities, affecting the filtration effect and requiring frequent cleaning and maintenance, further extending the wastewater treatment cycle.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dual-cylinder pre-filter to improve the filtration efficiency of the filter.

[0006] The technical solution of this utility model is as follows:

[0007] The dual-cylinder pre-filter includes:

[0008] Two cylindrical bodies are provided; the two cylindrical bodies are connected to the same water inlet pipe; a water outlet is provided at one end of each cylindrical body.

[0009] A filter cartridge is disposed inside the cylinder; filter holes are formed on the filter cartridge.

[0010] A filter element is disposed inside the filter cartridge; the filter element is cylindrical and has a water purification hole; one end of the water purification hole abuts against the filter cartridge, and the other end of the water purification hole is connected to the water outlet hole;

[0011] The liquid in the inlet pipe flows into the cylinder, enters the filter cylinder through the filter holes, passes through the pores of the filter element and enters the water purification hole, and finally flows out through the outlet hole.

[0012] A further technical solution is that one end of the cylinder is open and a cylinder cover is provided; the cylinder cover is threadedly connected to the cylinder.

[0013] A further technical solution is that, along the axis of the cylinder, a portion of the cylinder diameter is expanded to form an expansion section, and an internal thread is provided on the expansion section; an external thread is provided on the cylinder cover to cooperate with the expansion section.

[0014] A further technical solution is that reinforcing ribs are provided on the outer surface of the cylinder; the reinforcing ribs connect the cylinder of the expansion section and the cylinder of ordinary diameter.

[0015] A further technical solution is that the inner surface of the cylinder; a step is formed between the cylinder of the expansion section and the cylinder of the normal diameter; and an annular groove is formed on the step around the axis of the cylinder.

[0016] A further technical solution is that, around the water outlet, an annular first extension is provided on the cylinder cover, and an annular second extension is provided on the filter cylinder; the first extension is provided with an internal thread; and the second extension is provided with an external thread to connect to the first extension.

[0017] A further technical solution is that an end plate is provided at the end of the filter element near the end of the cylinder cover; an annular water outlet cylinder extends from the end plate; the water outlet cylinder passes through the cylinder cover along the second annular extension; the water outlet cylinder is connected to the water purification hole.

[0018] A further technical solution is that the end away from the water outlet is left with a gap between the end of the filter cartridge and the end of the cylinder.

[0019] A further technical solution is to include a three-way pipe; one port of the three-way pipe is a water inlet and is connected to a water inlet pipe; the other two ports of the three-way pipe are respectively connected to water delivery pipes; and the two water delivery pipes are each individually connected to one of the cylinders.

[0020] A further technical solution is that a three-way ball valve is installed on the three-way pipe.

[0021] The beneficial technical effects of this utility model are as follows:

[0022] (1) The dual-cylinder pre-filter of this utility model has a two-layer filtration structure of filter cylinder and filter element inside the cylinder. When filtering wastewater, the wastewater first passes through the filter holes on the filter cylinder and is filtered once, and then the wastewater passes through the filter element and is filtered a second time. The two filtrations ensure the filtration effect of the wastewater. At the same time, the filter cylinder and filter element can be set with different filtration precisions. That is, the filter cylinder first filters out large particles of impurities, and these large particles of impurities are discharged outside the filter cylinder. Then the filter element filters out smaller particles of impurities, ensuring the filtration precision of wastewater while preventing large particles of impurities from adhering to the filter element and clogging it, reducing the number of times the filter element needs to be cleaned, reducing the downtime of the dual-cylinder pre-filter, and thus improving the filtration efficiency of the dual-cylinder pre-filter. In addition, the dual-cylinder gas filter of this application has two cylinders connected in parallel to filter simultaneously, increasing the flow rate of wastewater filtered per unit time and improving the filtration efficiency of wastewater.

[0023] (2) Furthermore, one end of the cylinder is open and fitted with a cylinder cover, which is threadedly connected to the cylinder. This facilitates the removal of the cylinder cover to open the cylinder and clean the cylinder, filter cartridge, and filter element, thereby improving the cleaning and maintenance efficiency of the dual-cylinder pre-filter.

[0024] (3) Furthermore, the filter cartridge is threadedly connected to the cartridge cover, and the filter element is installed inside the filter cartridge. This facilitates quick replacement of the filter cartridge and filter element, further improving the maintenance efficiency of the dual-cartridge pre-filter. Attached Figure Description

[0025] Figure 1 A three-dimensional structural schematic diagram of a dual-cylinder pre-filter according to an embodiment of the present disclosure is shown.

[0026] Figure 2 A vertical cross-sectional schematic diagram of a dual-cylinder pre-filter according to an embodiment of the present disclosure is shown.

[0027] Figure 3 A partially enlarged view of a dual-cylinder pre-filter according to an embodiment of the present disclosure is shown at point A.

[0028] Marked in the attached diagram:

[0029] 1. Water supply pipe; 2. T-pipe; 21. T-ball valve; 22. Water inlet; 3. Cylinder; 31. Expansion section; 311. Step; 312. Reinforcing rib; 32. Gap; 33. Annular groove; 4. Cylinder cover; 41. Water outlet; 42. First extension; 5. Filter cartridge; 51. Filter hole; 52. Second extension; 6. Filter element; 61. Clean water hole; 62. End plate; 621. Water outlet cylinder. Detailed Implementation

[0030] To make the objectives, features, and advantages of this utility model more apparent and understandable, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0031] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Figure 1 A three-dimensional structural schematic diagram of a dual-cylinder pre-filter according to an embodiment of the present disclosure is shown. Figure 2 A vertical cross-sectional schematic diagram of a dual-cylinder pre-filter according to an embodiment of the present disclosure is shown. Figure 3 A partially enlarged view of a dual-cylinder pre-filter according to an embodiment of this disclosure is shown at point A. Please refer to... Figure 1 , Figure 2 and Figure 3The dual-cylinder pre-filter includes two cylinders 3. The two cylinders 3 are connected to the same inlet pipe. An outlet hole 41 is opened at one end of each cylinder 3. The two cylinders 3 are connected in parallel to filter simultaneously, increasing the flow rate of filtered wastewater per unit time and improving the filtration efficiency. A filter cartridge 5 is installed inside the cylinder 3. Filter holes 51 are opened on the filter cartridge 5. A filter element 6 is installed inside the filter cartridge 5. The filter element 6 is cylindrical and has a clean water hole 61. One end of the clean water hole 61 abuts against the filter cartridge 5, and the other end connects to the outlet hole 41. Liquid flowing from the inlet pipe into the cylinder 3 enters the filter cartridge 5 through the filter holes 51, then passes through the pores of the filter element 6 into the clean water hole 61, and finally flows out through the outlet hole 41. Wastewater is first filtered when it passes through the filter holes 51 on the filter cartridge 5, and then filtered a second time when it passes through the filter element 6. This two-stage filtration ensures the effective filtration of the wastewater. Meanwhile, filter cartridge 5 and filter element 6 can be set with different filtration precisions. That is, filter cartridge 5 first filters out large particles of impurities, which are then discharged outside filter cartridge 5. Then, filter element 6 filters out smaller particles of impurities. This ensures the filtration precision of wastewater while preventing large particles of impurities from adhering to and clogging filter element 6, reducing the frequency of filter element 6 cleaning, reducing downtime of the dual-cartridge pre-filter, and thus improving the filtration efficiency of the dual-cartridge pre-filter.

[0033] Please refer to Figure 2 and Figure 3 The cylinder body 3 has an opening at one end and is fitted with a cylinder cover 4. The cylinder cover 4 is threadedly connected to the cylinder body 3. This allows for easy removal of the cylinder cover 4 to open the cylinder body 3, and facilitates cleaning of the cylinder body 3, filter cartridge 5, and filter element 6, thereby improving the cleaning and maintenance efficiency of the dual-cylinder pre-filter.

[0034] Preferably, along the axis of the cylinder 3, a portion of the cylinder 3's diameter is expanded to form an expansion section 31, with an internal thread on the expansion section 31. The cylinder cover 4 has an external thread that engages with the internal thread. A step 311 is formed between the cylinder 3 of the expansion section 31 and the cylinder 3 of a standard diameter. The step 311 allows for quick positioning of the relative positions of the cylinder cover 4 and the cylinder 3, facilitating user assembly of the cylinder 3 and the cylinder cover 4. An annular groove 33 is formed on the step 311 around the axis of the cylinder 3. A sealing ring can be placed within the annular groove 33 to improve the sealing performance between the cylinder 3 and the cylinder cover 4.

[0035] More preferably, a reinforcing rib 312 is provided on the outer surface of the cylinder 3. The reinforcing rib 312 connects the cylinder 3 of the expansion section 31 and the cylinder 3 of the normal diameter. The reinforcing rib 312 enhances the structural strength of the cylinder 3.

[0036] Please refer to Figure 2 and Figure 3A first annular extension 42 extends from the cover 4 around the water outlet 41, and a second annular extension 52 extends from the filter cartridge 5. The first extension 42 has an internal thread. The second extension 52 has an external thread connecting to the first extension 42. The filter cartridge 5 is threaded to the cover 4, and the filter element 6 is housed inside the filter cartridge 5. This facilitates quick replacement of the filter cartridge 5 and filter element 6, further improving the maintenance efficiency of the dual-cartridge pre-filter.

[0037] Preferably, an end plate 62 is provided at the end of the filter element 6 near the end of the cover 4. An annular water outlet tube 621 extends from the end plate 62. The water outlet tube 621 passes through the cover 4 along the second annular extension 52. The water outlet tube 621 communicates with the purified water hole 61. While guiding the filtered water in the purified water hole 61 out of the cylinder 3, the water outlet tube 621 can limit the relative position between the filter cylinder 5 and the filter element 6, thereby improving the stability of the filter element 6.

[0038] Please refer to Figure 2 and Figure 3 The end furthest from the outlet 41. A gap 32 is left between the end of the filter cartridge 5 and the end of the cylinder 3 to accommodate large particulate impurities in the filter media in the wastewater.

[0039] Preferably, a three-way pipe 2 is also provided. One port of the three-way pipe 2 is a water inlet 22 and is connected to a water inlet pipe. The other two ports of the three-way pipe 2 are respectively connected to water supply pipes 1. The two water supply pipes 1 are each connected to a separate cylinder 3 to simultaneously supply wastewater to the two cylinders 3. The water supply pipes 1 and the cylinders 3 can be connected by welding.

[0040] More preferably, a three-way ball valve 21 is provided on the three-way pipe 2. The three-way ball valve 21 controls the opening and closing of the water supply pipe 1, thereby controlling the start and stop of the operation of the filter cartridge 5. In some embodiments, the three-way ball valve 21 can be a T-type three-way ball valve 21. Rotating the T-type three-way ball valve 21 inside the three-way pipe 2 can simultaneously distribute the wastewater from the inlet 22 to the two water supply pipes 1 or a single water supply pipe 1. When the operator needs to clean and maintain a cartridge 3, he only needs to rotate the T-type three-way ball valve 21 to disconnect the water supply pipe 1 of the cartridge 3 that needs to be cleaned and maintained, so that the cartridge 3 can be cleaned and maintained without stopping all cartridges 3, thereby increasing the effective working time of the dual-cartridge pre-filter.

[0041] The specific assembly process of this utility model is as follows:

[0042] Place the filter element 6 inside the filter cartridge 5, and then thread the filter cartridge 5 and the cover 4 together. At this time, the outlet tube 621 of the filter element 6 extends into the annular second extension 52. Insert the filter cartridge 5 and the filter element 6 into the cylinder 3, and thread the cylinder 3 and the cover 4 together. Connect the three-way pipe 2, the inlet pipe and the delivery pipe 1 through the flange, and open the three-way ball valve 21 to complete the assembly of the dual-cylinder pre-filter.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dual-cylinder pre-filter, characterized in that, The dual-cylinder pre-filter includes: Two cylindrical bodies are provided; the two cylindrical bodies are connected to the same water inlet pipe; a water outlet is provided at one end of each cylindrical body. A filter cartridge is disposed inside the cylinder; filter holes are formed on the filter cartridge. A filter element is disposed inside the filter cartridge; the filter element is cylindrical and has a water purification hole; one end of the water purification hole abuts against the filter cartridge, and the other end of the water purification hole is connected to the water outlet hole; The liquid in the inlet pipe flows into the cylinder, enters the filter cylinder through the filter holes, then passes through the pores of the filter element into the water purification hole, and finally flows out through the outlet hole.

2. The dual-cylinder pre-filter as described in claim 1, characterized in that: The cylinder has an opening at one end and is fitted with a cap; the cap is threadedly connected to the cylinder.

3. The dual-cylinder pre-filter as described in claim 2, characterized in that: Along the axis of the cylinder, a portion of the cylinder's diameter is expanded to form an expansion section, and an internal thread is provided on the expansion section; an external thread is provided on the cylinder cover to mate with the expansion section.

4. The dual-cylinder pre-filter as described in claim 3, characterized in that: The outer surface of the cylinder is provided with reinforcing ribs; the reinforcing ribs connect the cylinder of the expansion section and the cylinder of ordinary diameter.

5. The dual-cylinder pre-filter as described in claim 3, characterized in that: The inner surface of the cylinder; a step is formed between the cylinder of the expansion section and the cylinder of the normal diameter; an annular groove is formed on the step around the axis of the cylinder.

6. The dual-cylinder pre-filter as described in claim 2, characterized in that: Around the water outlet, the cylinder cover has an annular first extension, and the filter cylinder has an annular second extension; the first extension has an internal thread, and the second extension has an external thread that connects to the first extension.

7. The dual-cylinder pre-filter as described in claim 6, characterized in that: An end plate is provided at the end of the filter element near the end of the cylinder cover; an annular water outlet cylinder extends from the end plate; the water outlet cylinder passes through the cylinder cover along the second annular extension; the water outlet cylinder communicates with the water purification hole.

8. The dual-cylinder pre-filter as described in claim 1, characterized in that: The end furthest from the water outlet; A gap is left between the end of the filter cartridge and the end of the cylinder body.

9. The dual-cylinder pre-filter as described in claim 1, characterized in that: It is also equipped with a three-way pipe; one end of the three-way pipe is a water inlet and is connected to a water inlet pipe; the other two ends of the three-way pipe are respectively connected to water delivery pipes; the two water delivery pipes are each individually connected to one of the cylinders.

10. The dual-cylinder pre-filter as described in claim 9, characterized in that: A three-way ball valve is installed on the three-way pipe.

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