Y-shaped filter with improved structure

Abstract

A Y-shaped filter with an improved structure comprises a filter valve body, an inlet, an outlet and a drain outlet which are communicated with one another are respectively arranged on the filter valve body, an inlet flange is arranged on the filter valve body at the inlet, and an outlet flange is arranged on the filter valve body at the outlet; a cylindrical filter screen is inserted in the filter valve body at the drain outlet, a semicircular baffle ring is arranged at the end part of one end of the cylindrical filter screen, a circular groove is formed in the filter valve body at the drain outlet, the circular groove and the drain outlet are concentrically arranged, a semicircular ring boss is arranged at the edge of the outer side of the circular groove, and the semicircular ring boss is arranged at the edge of the outer side of the circular groove. A fixed gap is reserved between the semicircular boss and the edge of the inner side of the circular groove, and a semicircular notch with the same diameter as the circular groove is reserved opposite to the semicircular boss; a valve cover is also arranged on the filter valve body at the sewage draining exit; and a sealing ring is also arranged on the valve cover. The filter screen is convenient to disassemble and assemble, the sealing ring is firm and reliable and does not need to be replaced frequently, and the working efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage, in particular to a Y-type filter, and more particularly to a Y-type filter with an improved structure. Background Art

[0002] Y-type filters are widely used in water supply networks. Y-type filters have a simple structure, reliable filtering, and a small size. However, in the prior art, when the filter screen of the Y-type filter is replaced on site, the new filter screen is not positioned and is easy to fall off, which makes it difficult for one person to operate. In addition, the sealing ring at the filter screen is usually made of asbestos, which is easily damaged and ineffective after being disassembled many times. A new sealing ring must be replaced. Since the filter screen needs to be cleaned or replaced frequently, the sealing ring also needs to be replaced frequently, which increases the cost of using the Y-type filter. At the same time, the process of cleaning or replacing the filter screen is increased, which reduces work efficiency. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a Y-type filter with an improved structure, which is convenient for disassembly and assembly of the filter screen, has a strong and reliable sealing ring and does not need to be frequently replaced, and helps to improve work efficiency.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions: a Y-type filter with improved structure, comprising a filter valve body, the filter valve body is respectively provided with an inlet, an outlet and a sewage outlet which are interconnected, an inlet flange is provided on the filter valve body at the inlet, an outlet flange is provided on the filter valve body at the outlet, and a middle flange is provided on the filter valve body at the sewage outlet; a cylindrical filter screen is inserted in the filter valve body at the sewage outlet, a semicircular retaining ring is provided at the end of one end of the cylindrical filter screen, a circular groove is provided on the filter valve body at the sewage outlet, the circular groove is concentrically arranged with the sewage outlet, a semicircular ring boss is provided at the outer edge of the circular groove, a fixed gap is left between the semicircular ring boss and the inner edge of the circular groove, and a semicircular ring notch with the same diameter as the circular groove is left opposite to the semicircular ring boss; a valve cover is also installed on the filter valve body at the sewage outlet, the valve cover is bolted to the middle flange, and a sealing ring is also installed on the valve cover.

[0005] Furthermore, an inspection hole is left on the valve cover, and a plug is installed on the valve cover at the inspection hole.

[0006] Furthermore, the sealing ring is an O-ring.

[0007] Furthermore, an annular groove is arranged on the inner wall of the valve cover, and the sealing ring is arranged in the annular groove.

[0008] Furthermore, the sealing ring is made of fluororubber.

[0009] Furthermore, the cylindrical filter screen is made of stainless steel.

[0010] Furthermore, a ball valve interface and a pressure gauge interface are also provided on the filter valve body.

[0011] Compared with the prior art, the Y-shaped filter with improved structure of the present utility model adds a positioning and fixing structure for the filter screen, which facilitates the disassembly and assembly of the filter screen. At the same time, the sealing ring is changed to a fluororubber O-ring, and the flange can be disassembled and assembled multiple times without frequently replacing the sealing ring, improving the work efficiency. Description of the Drawings

[0012] Figure 1 is a structural schematic diagram of the Y-shaped filter with improved structure of the present utility model;

[0013] Figure 2 is a structural schematic diagram of the filter valve body in the present utility model;

[0014] Figure 3 is Figure 2 the A-direction structural schematic diagram of

[0015] Figure 4 is a structural schematic diagram of the cylindrical filter screen in the present utility model;

[0016] Figure 5 is a side view of the structure of the cylindrical filter screen in the present utility model;

[0017] Figure 6 is a structural schematic diagram of the valve cover in the present utility model. Detailed Embodiments

[0018] To make the objectives, technical solutions, and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings and embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present utility model belong to the scope of protection of the present utility model.

[0019] Refer to Figures 1-6, A Y-type filter with improved structure, including a filter valve body 1. An inlet, an outlet and a drain port which are interconnected are respectively arranged on the filter valve body 1. An inlet flange 2 is arranged on the filter valve body 1 at the inlet, an outlet flange 3 is arranged on the filter valve body 1 at the outlet, and a middle flange 4 is arranged on the filter valve body 1 at the drain port; The inlet and the outlet are respectively used for the inflow and outflow of water supply, and the drain port is used for discharging the impurities and particulate matters intercepted during the filtering process; The arrangements of the inlet flange 2, the outlet flange 3 and the middle flange 4 facilitate the quick connection and disassembly with the pipeline system, improving the flexibility and efficiency of installation;

[0020] A cylindrical filter net 5 is inserted into the filter valve body 1 at the drain port. The cylindrical filter net 5 is provided with a dense mesh structure for intercepting impurities and particulate matters in the water supply to ensure that the outflowing water supply reaches a certain cleanliness level. Further, the cylindrical filter net 5 is made of stainless steel;

[0021] In order to realize the positioning and fixing of the cylindrical filter net 5, a semi-circular retaining ring 11 is arranged radially outward at one end of the cylindrical filter net 5. A circular groove 10 is arranged on the filter valve body 1 at the drain port. The circular groove 10 is concentric with the drain port. A semi-circular ring boss 12 is arranged at the outer edge of the circular groove 10. A fixing gap is left between the semi-circular ring boss 12 and the inner edge of the circular groove 10 for positioning and fixing the semi-circular retaining ring 11 on the cylindrical filter net 5. A semi-circular ring notch with the same diameter as the circular groove 10 is left opposite to the semi-circular ring boss to facilitate the passing of the semi-circular retaining ring 11 on the cylindrical filter net 5. Specifically, when inserting the cylindrical filter net 5, first embed the semi-circular retaining ring 11 completely into the circular groove 10 through the semi-circular ring notch, and then rotate the cylindrical filter net 5 by 180 degrees to make the semi-circular retaining ring 11 completely snap into the fixing gap at the semi-circular ring boss 12, so that the semi-circular ring boss 12 just blocks the semi-circular retaining ring 11 to realize the positioning and fixing of the cylindrical filter net 5;

[0022] In order to realize the sealing of the drain port, a valve cover 6 is also installed on the filter valve body 1 at the drain port. The valve cover 6 is bolted to the middle flange 4, which not only ensures the sealing performance but also facilitates the disassembly and assembly operation. Preferably, an inspection hole 9 is also left on the valve cover 6. A plug is installed on the valve cover 6 at the inspection hole 9. The inspection hole 9 provided on the valve cover 6 allows the operator to check the cleanliness level of the cylindrical filter net 5 or perform necessary maintenance operations by installing or removing the plug without disassembling the entire valve cover 6, improving the convenience of maintenance;

[0023] To ensure the sealing performance of the valve cover 6, a sealing ring 7 is also installed on the valve cover 6. Preferably, the sealing ring 7 is an O-ring. A ring groove 13 is provided on the inner wall of the valve cover 6, and the sealing ring 7 is arranged in the ring groove 13. Further, the sealing ring 7 is made of fluororubber, which has good chemical corrosion resistance, high temperature resistance and sealing performance, is strong and reliable, and has a long service life.

[0024] On the filter body 1, there are also left a ball valve interface and a pressure gauge interface 8, which are convenient for the installation of the ball valve and the pressure gauge, and convenient for observing the flow resistance when the water supply passes through, so as to judge whether it is necessary to check the cylindrical filter net 5.

[0025] The use process of an improved Y-type filter is as follows:

[0026] When the filter net needs to be disassembled, first disassemble the valve cover 6, and then rotate the cylindrical filter net 5 by 180°, so that the semi-circular retaining ring 11 rotates out of the fixed gap at the semi-circular ring boss 12, and disengages from the circular groove 10 from the semi-circular ring notch, then the cylindrical filter net 5 can be taken out for cleaning or replacing the cylindrical filter net 5; when installing the cylindrical filter net 5, first insert the cylindrical filter net 5 from the sewage outlet, and make the semi-circular retaining ring 11 just snap into the circular groove 10 on the filter body 1, and then rotate the cylindrical filter net 5 by 180°, and turn the semi-circular retaining ring 11 into the fixed gap at the semi-circular ring boss 12, so that the semi-circular ring boss 12 just blocks the semi-circular retaining ring 11, thereby restricting the cylindrical filter net 5 from falling off and realizing the positioning and fixing of the cylindrical filter net 5, and then install the valve cover 6 to complete the cleaning or replacing operation of the cylindrical filter net 5;

[0027] Secondly, the sealing ring 7 is installed on the valve cover 6 through the ring groove 13 and is made of fluororubber. Even if the valve cover 6 is disassembled and assembled multiple times, it will not be damaged, greatly reducing the replacement frequency of the sealing ring 7, helping to reduce costs and improve work efficiency. In addition, the sealing ring 7 made of fluororubber can withstand temperatures up to 220°C, which helps to increase the working temperature range of this filter.

Claims

1. A Y-type filter with improved structure, characterized in that: The filter valve body comprises a filter valve body, on which an inlet, an outlet and a sewage outlet which are interconnected are respectively arranged, an inlet flange is arranged on the filter valve body at the inlet, an outlet flange is arranged on the filter valve body at the outlet, and a middle flange is arranged on the filter valve body at the sewage outlet; a cylindrical filter screen is inserted in the filter valve body at the sewage outlet, a semicircular retaining ring is arranged at the end of one end of the cylindrical filter screen, a circular groove is arranged on the filter valve body at the sewage outlet, the circular groove is arranged concentrically with the sewage outlet, a semicircular ring boss is arranged at the outer edge of the circular groove, a fixed gap is left between the semicircular ring boss and the inner edge of the circular groove, and a semicircular ring notch with the same diameter as the circular groove is left opposite to the semicircular ring boss; a valve cover is also installed on the filter valve body at the sewage outlet, the valve cover is bolted to the middle flange, and a sealing ring is also installed on the valve cover.

2. The structure-improved Y-type filter according to claim 1, characterized in that: An inspection hole is also reserved on the valve cover, and a plug is installed on the valve cover at the inspection hole.

3. The structure-improved Y-type filter according to claim 1, characterized in that: The sealing ring is an O-ring.

4. The structure-improved Y-type filter according to claim 3, characterized in that: An annular groove is arranged on the inner wall of the valve cover, and a sealing ring is arranged in the annular groove.

5. The structure-improved Y-type filter according to claim 1 or 3, characterized in that: The sealing ring is made of fluororubber.

6. The structure-improved Y-type filter according to claim 1, characterized in that: The cylindrical filter screen is made of stainless steel.

7. The structure-improved Y-type filter according to claim 1, characterized in that: A ball valve interface and a pressure gauge interface are also reserved on the filter valve body.

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