High-pressure stainless steel filter

Abstract

The utility model relates to the technical field of filters, and discloses a high-pressure stainless steel filter, which comprises a filter tank, a top cover and a filter element which is positioned in the filter tank and is inserted and mounted, the top end of the filter tank is in threaded connection with the top cover, and a liquid inlet and a liquid outlet which are communicated with each other are formed in the outer side of the top cover. According to the high-pressure stainless steel filter, the auxiliary mounting assembly is arranged, the connecting base and the filter element can be mounted in an aligned mode, the situation that the connecting base rotates along with the top cover, consequently, a second sealing ring at the connecting position of the connecting base and the filter element is twisted, and the sealing capacity becomes poor can be effectively avoided, and meanwhile the first sealing assembly and the second sealing assembly are convenient to use. According to the double-sealing filter element, double sealing of the filter element and the bottom ring can be achieved, the sealing effect can be better achieved through the design of the inner protruding ring and the outer protruding ring which are the same, the better supporting capacity can be achieved through the design of the two upper supporting rings and the two lower supporting rings, the filtering effect of the filter can be guaranteed even under high pressure, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a high-pressure stainless steel filter. Background Technology

[0002] The outer shell of a high-pressure stainless steel filter is usually made of high-strength stainless steel, which has excellent corrosion resistance, high strength and good wear resistance. It can withstand high-pressure environments and resist the erosion of the media. The internal filter element is generally a stainless steel filter screen or filter element. Depending on the different filtration accuracy requirements, the mesh size of the filter screen or the pore size of the filter element is different. In the petrochemical industry, it is used to filter impurities in fluids such as petroleum and chemical raw materials, and protect downstream equipment such as pumps and compressors from premature wear and clogging.

[0003] However, most existing high-pressure stainless steel filter connectors are directly inserted into the top of the filter element for interconnection with the top cover. However, during the installation of the top cover and the filter tank, the connector is squeezed and rotates with the top cover. This often results in the sealing ring at the connection between the connector and the filter element being twisted and deformed, leading to a decrease in sealing performance. Furthermore, the existing connection between the filter element and the filter tank only has a single sealing component, and the single sealing component has a simple structure, which cannot improve the sealing effect and has poor practicality. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the prior art, this utility model provides a high-pressure stainless steel filter to solve the problems mentioned in the background.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure stainless steel filter, comprising a filter tank, a top cover, and a filter element inserted and installed inside the filter tank. The top cover is threadedly connected to the top of the filter tank. A through-hole liquid inlet and a liquid outlet are provided on the outer side of the top cover. An electric transmitter is also provided at the top of the top cover. A bottom ring for installing the filter element is provided at the bottom of the filter tank. A connecting seat is provided between the top cover and the filter element. An auxiliary installation component is provided between the connecting seat and the filter element. An outer alignment strip is fixedly installed on the inner diameter surface of the filter tank. An inner alignment strip adapted to the outer alignment strip is fixedly installed on the outer diameter surface of the filter element. A first sealing component and a second sealing component are provided between the filter element and the bottom ring. A drain bolt is also provided at the bottom of the filter tank. The first sealing component and the second sealing component have the same shape. Both the first sealing component and the second sealing component are integrally injection molded. Both the first sealing component and the second sealing component are made of rubber.

[0008] Preferably, there are four identical outer alignment strips and four inner alignment strips arranged in a cross shape around the center line of the filter tank. The outer alignment strips and inner alignment strips are connected by plugging.

[0009] With the above technical solution, during the filter element installation process, the staff aligns the inner alignment strip on the outside of the filter element with the outer alignment strip, and then inserts the filter element into the filter canister until the filter element is completely inside the filter canister, thus achieving the alignment installation of the filter element.

[0010] Preferably, the auxiliary installation component includes a first sealing ring, a second sealing ring, a connector strip, and a connector hole. The first sealing ring is semi-embedded in the top of the connector seat, the second sealing ring is sleeved on the outer side of the lower part of the connector seat, the lower part of the connector seat is also provided with a connector strip, and the top of the filter element is provided with a connector hole adapted to the connector strip.

[0011] Preferably, the cross-section of the connector is in the shape of an "↑" and the connector is hollow. The connector and the filter element are connected by a plug-in connection. The number of plug-in strips and plug-in holes are the same and correspond one-to-one. The plug-in holes are not interconnected with the interior of the filter element.

[0012] With the above technical solution, during the installation of the connector and filter element, the insertion strip at the bottom of the connector is aligned with the insertion hole at the top of the filter element and inserted until the insertion strip is fully inserted into the insertion hole, thus completing the installation of the connector and filter element. This allows for quick positioning and installation. The design of the first sealing ring and the second sealing ring enables sealing between the top cover, the filter element, and the connector.

[0013] Preferably, the first sealing assembly includes a sealing ring, an inner convex ring, an outer convex ring, an upper support ring, and a lower support ring. Two identical inner convex rings are installed at equal intervals on the inner diameter surface of the sealing ring, and two identical outer convex rings are installed at equal intervals on the outer diameter surface of the sealing ring. Two upper support rings are fixedly installed at the top end of the sealing ring, and two lower support rings are fixedly installed at the bottom end of the sealing ring.

[0014] Preferably, the ends of the inner and outer convex rings away from the sealing ring are designed with arcs, and the ends of the upper and lower support rings away from the sealing ring are designed with squares. One of the inner, outer, and upper support rings is located inside the filter element, and the other inner, outer, and lower support ring is located inside the bottom ring.

[0015] The above technical solution, through the design of the first sealing component and the second sealing component, can achieve double sealing. The design of two identical inner and outer convex rings can better play the role of sealing. The design of two upper support rings and two lower support rings can provide better support capacity, ensuring the filtration effect even under high pressure.

[0016] Compared with the prior art, this utility model provides a high-pressure stainless steel filter with the following advantages: The high-pressure stainless steel filter is equipped with an auxiliary installation component for the connecting seat, enabling the connecting seat and filter element to be aligned and installed. This effectively prevents the connecting seat from rotating with the top cover, which could cause the second sealing ring at the connection between the connecting seat and the filter element to twist, resulting in a decrease in sealing performance. Simultaneously, the first and second sealing components achieve a double seal between the filter element and the bottom ring. The design of two identical inner and outer convex rings enhances the sealing effect, while the design of two upper and two lower support rings provides better support. Even under high pressure, the filter's filtration effect is guaranteed, improving its practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the disassembled filter element structure of this utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the present invention.

[0022] Figure 6 This is a schematic diagram of the filter element installation structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the mounting structure of the connector of this utility model;

[0024] Figure 8 This is a three-dimensional structural diagram of the first sealing component of this utility model;

[0025] Figure 9 This is a schematic cross-sectional view of the first sealing component of this utility model;

[0026] Figure 10 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0027] The components include: 1. Filter tank; 2. Top cover; 3. Liquid inlet; 4. Liquid outlet; 5. Electrical transmitter; 6. Connecting seat; 7. Filter element; 8. Auxiliary installation components; 801. First sealing ring; 802. Second sealing ring; 803. Insertion strip; 804. Insertion hole; 9. Outer alignment strip; 10. Inner alignment strip; 11. Bottom ring; 12. First sealing assembly; 1201. Sealing ring; 1202. Inner convex ring; 1203. Outer convex ring; 1204. Upper support ring; 1205. Lower support ring; 13. Second sealing assembly; 14. Drain bolt. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] like Figure 1-10 As shown, this utility model provides a high-pressure stainless steel filter, including a filter tank 1, a top cover 2, and a filter element 7 inserted and installed inside the filter tank 1. The top cover 2 is threaded to the top of the filter tank 1. The outer side of the top cover 2 has a through-hole liquid inlet 3 and a liquid outlet 4. An electric transmitter 5 is also provided at the top of the top cover 2. A bottom ring 11 for installing the filter element 7 is provided at the bottom of the filter tank 1. A connecting seat 6 is provided between the top cover 2 and the filter element 7. An auxiliary installation assembly 8 is provided between the connecting seat 6 and the filter element 7. An outer alignment strip 9 is fixedly installed on the inner diameter surface of the tank 1, and an inner alignment strip 10 adapted to the outer alignment strip 9 is fixedly installed on the outer diameter surface of the filter element 7. A first sealing component 12 and a second sealing component 13 are provided between the filter element 7 and the bottom ring 11. A drain bolt 14 is also provided at the bottom of the filter tank 1. The first sealing component 12 and the second sealing component 13 have the same shape. Both the first sealing component 12 and the second sealing component 13 are integrally injection molded and are made of rubber.

[0031] Specifically, there are four identical outer alignment strips 9 and inner alignment strips 10. The four outer alignment strips 9 and inner alignment strips 10 are arranged in a cross shape around the center line of the filter tank 1. The outer alignment strips 9 and inner alignment strips 10 are connected by plugging. The advantage is that during the installation of the filter element 7, the operator aligns the inner alignment strip 10 on the outside of the filter element 7 with the outer alignment strip 9, and then inserts the filter element 7 into the filter tank 1 until the filter element 7 is completely inside the filter tank 1, thus achieving the alignment installation of the filter element 7.

[0032] Example 2:

[0033] like Figure 2-10 As shown, this is an improvement on the previous embodiment.

[0034] Specifically, the auxiliary installation component 8 includes a first sealing ring 801, a second sealing ring 802, a connector strip 803, and a connector hole 804. The first sealing ring 801 is semi-embedded on the top of the connecting seat 6, and the second sealing ring 802 is sleeved on the outer side of the lower part of the connecting seat 6. The lower part of the connecting seat 6 is also provided with a connector strip 803. The top of the filter element 7 is provided with a connector hole 804 that is adapted to the connector strip 803. The cross-section of the connecting seat 6 is in the shape of an "↑" and the connecting seat 6 adopts a hollow structure. The connecting seat 6 and the filter element 7 are connected by a plug-in connection. The number of connector strips 803 and connector holes 804 are the same and correspond one-to-one. The connector holes 804 and the interior of the filter element 7 are not interconnected. The advantage is that during the installation of the connector 6 and the filter element 7, the connector strip 803 at the bottom of the connector 6 is aligned with the connector hole 804 at the top of the filter element 7 and inserted until the connector strip 803 is fully inserted into the connector hole 804. This completes the installation of the connector 6 and the filter element 7, allowing for quick positioning and installation. The design of the first sealing ring 801 and the second sealing ring 802 ensures a seal between the top cover 2, the filter element 7, and the connector 6.

[0035] Example 3:

[0036] like Figure 2-10 As shown, this is an improvement on the previous embodiment.

[0037] Specifically, the first sealing assembly 12 includes a sealing ring 1201, an inner convex ring 1202, an outer convex ring 1203, an upper support ring 1204, and a lower support ring 1205. Two identical inner convex rings 1202 are evenly spaced on the inner diameter surface of the sealing ring 1201, and two identical outer convex rings 1203 are evenly spaced on the outer diameter surface of the sealing ring 1201. Two upper support rings 1204 are fixedly installed at the top of the sealing ring 1201, and the bottom of the sealing ring 1201 is fixed... Two lower support rings 1205 are installed. The ends of the inner convex ring 1202 and the outer convex ring 1203 away from the sealing ring 1201 are rounded, while the ends of the upper support ring 1204 and the lower support ring 1205 away from the sealing ring 1201 are square. One inner convex ring 1202, the outer convex ring 1203, and the upper support ring 1204 are located inside the filter element 7, while the other inner convex ring 1202, the outer convex ring 1203, and the lower support ring 1205 are located inside the bottom ring 11. The advantages are that the design of the first sealing assembly 12 and the second sealing assembly 13 achieves double sealing; the design of two identical inner convex rings 1202 and outer convex rings 1203 provides better sealing; and the design of two upper support rings 1204 and two lower support rings 1205 provides better support, ensuring filtration efficiency even under high pressure.

[0038] Working principle: During assembly, the operator aligns the inner alignment strip 10 of the filter element 7 with the outer alignment strip 9, and then inserts the filter element 7 into the filter canister 1 until it is fully inserted. This achieves proper alignment of the filter element 7. During the installation of the connector 6 and the filter element 7, the lower insertion strip 803 of the connector 6 is aligned with the insertion hole 804 at the top of the filter element 7 and inserted until it is fully inserted. This completes the installation of the connector 6 and the filter element 7, allowing for quick and easy positioning. Finally, the top cover 2 is screwed onto the filter canister 1. At the top, during use, the design of the first sealing ring 801 and the second sealing ring 802 can seal the top cover 2, the filter element 7 and the connecting seat 6. The design of the first sealing component 12 and the second sealing component 13 can achieve double sealing. The design of two identical inner convex rings 1202 and outer convex rings 1203 can better play the role of sealing. The design of two upper support rings 1204 and two lower support rings 1205 can provide better support capacity, ensuring the filtration effect of the filter even under high pressure and improving practicality.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high pressure stainless steel filter comprising a filter tank (1), a top cover (2) and a filter element (7) inserted and mounted inside the filter tank (1), characterized in that: The top end of the filter tank (1) is threadedly connected with a top cover (2), a through liquid inlet (3) and a liquid outlet (4) are formed in the outer side of the top cover (2), and an electric transmitter (5) is further arranged at the top end of the top cover (2); a bottom ring (11) for mounting a filter core (7) is arranged at the inner bottom end of the filter tank (1); a connecting seat (6) is arranged between the top cover (2) and the filter core (7); an auxiliary mounting assembly (8) is arranged between the connecting seat (6) and the filter core (7); an outer alignment strip (9) is fixedly mounted on the inner diameter surface of the filter tank (1); an inner alignment strip (10) adapted to the outer alignment strip (9) is fixedly mounted on the outer diameter surface of the filter core (7); a first sealing assembly (12) and a second sealing assembly (13) are arranged between the filter core (7) and the bottom ring (11); a liquid discharge bolt (14) is further arranged at the bottom end of the filter tank (1); the first sealing assembly (12) and the second sealing assembly (13) are identical in shape; the first sealing assembly (12) and the second sealing assembly (13) are integrally injection molded; and the first sealing assembly (12) and the second sealing assembly (13) are made of rubber material.

2. A high pressure stainless steel filter according to claim 1, characterized in that: The outer alignment strip (9) and the inner alignment strip (10) are all provided with four identical ones; the four outer alignment strips (9) and the four inner alignment strips (10) are arranged in a "cross" shape around the center line of the filter tank (1); and the outer alignment strip (9) and the inner alignment strip (10) are in plug-in connection.

3. A high pressure stainless steel filter according to claim 1, characterized in that: The auxiliary mounting assembly (8) comprises a first sealing ring (801), a second sealing ring (802), a plug-in strip (803) and a plug-in hole (804); the first sealing ring (801) is semi-embeddedly mounted at the top end of the connecting seat (6); the second sealing ring (802) is sleeved on the outer side of the lower part of the connecting seat (6); the lower part of the connecting seat (6) is further provided with the plug-in strip (803); and the top end of the filter core (7) is provided with the plug-in hole (804) adapted to the plug-in strip (803).

4. A high pressure stainless steel filter according to claim 3, characterized in that: The connecting seat (6) has a "↑" shaped structure in cross section; the connecting seat (6) has a hollow structure; the connecting seat (6) is in plug-in connection with the filter core (7); the number of the plug-in strip (803) and the plug-in hole (804) is identical and one-to-one corresponding; and the plug-in hole (804) is not in communication with the inside of the filter core (7).

5. A high pressure stainless steel filter according to claim 1, characterized in that: The first sealing assembly (12) comprises a sealing ring (1201), an inner convex ring (1202), an outer convex ring (1203), an upper support ring (1204) and a lower support ring (1205); two identical inner convex rings (1202) are equidistantly mounted on the inner diameter surface of the sealing ring (1201); two identical outer convex rings (1203) are equidistantly mounted on the outer diameter surface of the sealing ring (1201); two upper support rings (1204) are fixedly mounted at the top end of the sealing ring (1201); and two lower support rings (1205) are fixedly mounted at the bottom end of the sealing ring (1201).

6. A high pressure stainless steel filter according to claim 5, characterized in that: The inner convex ring (1202) and the outer convex ring (1203) are designed with a circular arc away from one end of the sealing ring (1201), the upper support ring (1204) and the lower support ring (1205) are designed with a square away from one end of the sealing ring (1201), one of the inner convex ring (1202), the outer convex ring (1203) and the upper support ring (1204) is located inside the filter core (7), and the other of the inner convex ring (1202), the outer convex ring (1203) and the lower support ring (1205) is located inside the bottom ring (11).

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