A flange type Y filter

Abstract

The present application relates to a flanged Y-type filter, which includes a valve body and a filter plug obliquely inserted into the side wall of the valve body, a filter structure is inserted into the filter plug, and the filter structure includes a particle adsorption capsule connected to the center of the filter plug and the side wall respectively, and an elastic narrow opening is provided on the side of the particle adsorption capsule close to the center of the filter plug; a hydraulic fluctuation structure is provided at the connection point between the valve body and the center of the filter plug; when the hydraulic pressure at the center of the filter plug increases, the elastic narrow opening expands; when the hydraulic pressure at the center of the filter plug decreases, the elastic narrow opening deforms. The present application has the effect of increasing the service life of the filter, reducing the continuous friction of large particles, and preventing the formation of more impurities to block the filter.

Description

Technical Field

[0001] The present application relates to the technical field of filters, and in particular to a flanged Y-type filter. Background Art

[0002] Y-type filters are mainly used in oil and gas pipelines, chemical plants, fire protection pipelines, water treatment plants, offshore oil platforms, etc. Y-type filters are usually installed at the inlet end of pressure reducing valves, pressure relief valves, water level valves or other equipment to remove impurities in the medium and protect equipment accessories on the pipeline from wear and blockage, so as to protect the normal use of valves and equipment.

[0003] The filter can intercept impurities of different sizes in the water, but the larger impurities will become smaller due to continuous impact and wear with the liquid flow after being intercepted, while the smaller impurities will clog the filter structure and accelerate the life consumption of the filter structure. In response to the above-mentioned related technologies, the applicant has proposed a Y-type filter that can capture large particles and thus increase the practical life. Utility Model Content

[0004] In order to increase the service life of the filter, reduce the continuous friction of large particles and prevent the formation of more impurities to block the filter, the present application provides a flanged Y-type filter.

[0005] The present application provides a flanged Y-type filter adopting the following technical solution:

[0006] A flanged Y-type filter comprises a valve body and a filter tube obliquely inserted through the side wall of the valve body, a filter structure is inserted through the filter tube, the filter structure comprises a particle adsorption capsule respectively connected to the center of the filter tube and the side wall, an elastic narrow opening is provided on the side of the particle adsorption capsule close to the center of the filter tube; a hydraulic fluctuation structure is provided at the connection point between the valve body and the center of the filter tube; when the hydraulic pressure at the center of the filter tube increases, the elastic narrow opening expands; when the hydraulic pressure at the center of the filter tube decreases, the elastic narrow opening deforms.

[0007] By adopting the above technical solution, the Y-type filter collects larger impurities through the particle adsorption capsules in the inner layer. The particle adsorption capsules control the opening size as the hydraulic pressure changes, so that particles can only enter but not exit, thereby preventing the particles from gradually wearing out and producing new impurities to clog the filter.

[0008] Preferably, the filtering structure also includes an inner filter screen and an outer filter screen, the inner filter screen is accommodated and fixed on the inner side of the filter screen insert tube, and the inner side of the inner filter screen is connected to one side of the valve body, and the outer side wall of the inner filter screen is connected to the other side of the valve body; the outer filter screen is sleeved outside the inner filter screen and accommodated on the inner side of the filter insert tube, and the inner and outer sides of the outer filter screen are connected to the two sides of the valve body; the particle adsorption capsule is fixed to the inner filter screen and extends toward the outer filter screen, and the particle adsorption capsule is respectively connected to the two sides of the inner screen of the inner filter screen, and the opening of the particle adsorption capsule close to the inner filter screen is larger than that close to the outer filter screen.

[0009] By adopting the above technical solution, layered filtration can effectively remove and filter particles of different sizes, effectively reduce the consumption of consumables and increase maintenance time while ensuring the filtration effect. At the same time, due to the setting of openings on both sides of the particle adsorption capsule, although there are multiple layers, the liquid resistance is not increased much.

[0010] Preferably, the side wall of the outer filter screen is bent and extended.

[0011] Preferably, the hydraulic fluctuation structure includes a resistance diaphragm and a connecting spring sheet, wherein the resistance diaphragm is arranged at the connection point between the inner filter screen and the valve body; and the connecting spring sheets are respectively connected between the resistance diaphragm and the filter screen insert tube at intervals.

[0012] Preferably, a winding ribbon is accommodated and fixed on the inner wall of the particle adsorption capsule.

[0013] By adopting the above technical solution, the winding ribbon can improve the adsorption capacity of particulate matter. At the same time, when there are multiple impurities in the particle adsorption capsule, the winding ribbon can buffer the impurities to prevent further wear and breakage.

[0014] Preferably, a replacement window is sealed and connected to one end of the filter tube away from the valve body, and the inner filter and the outer filter are respectively clamped in the replacement window; the replacement window extends toward the inner side of the inner filter and is fixed with a guide plate, and the guide plate is inclined toward the corresponding particle adsorption capsule.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The Y-type filter collects larger impurities through the particle adsorption capsule on the inner layer. The particle adsorption capsule controls the opening size as the hydraulic pressure changes, so that particles can only enter but not exit, thus preventing the particles from gradually wearing out and producing new impurities to clog the filter;

[0017] 2. Layered filtration can effectively remove and filter particles of different sizes, effectively reducing the consumption of consumables and increasing maintenance time while ensuring the filtration effect. At the same time, due to the openings on both sides of the particle adsorption capsule, although the multi-layer setting does not increase the liquid resistance much;

[0018] 3. The winding ribbon can improve the adsorption capacity of particulate matter. At the same time, when there are multiple impurities in the particle adsorption capsule, the winding ribbon can buffer the impurities to prevent further wear and breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a cross-sectional view of an embodiment of the present application;

[0020] Figure 2 is a cross-sectional view showing the internal structure of the filter screen insert tube according to an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram showing the winding ribbon according to an embodiment of the present application.

[0022] Explanation of the accompanying drawings: 1. Valve body; 2. Filter screen insert; 3. Filter structure; 31. Particle adsorption capsule; 32. Inner filter screen; 33. Outer filter screen; 4. Elastic narrow mouth; 5. Wrapped ribbon; 6. Hydraulic wave structure; 61. Resistance diaphragm; 62. Connecting spring; 7. Replacement window; 8. Guide plate. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with the accompanying drawings.

[0024] The present application embodiment discloses a flange type Y-type filter, referring to Figure 1 , 2 , comprising a valve body 1 and a filter insert 2 obliquely penetrated through the side wall of the valve body 1 , a filter structure 3 is penetrated through the filter insert 2 , and both ends of the valve body 1 are connected through the filter structure 3 .

[0025] Reference Figure 1 , 2 The filter structure 3 includes a particle adsorption capsule 31, an inner filter screen 32 and an outer filter screen 33. The inner filter screen 32 is accommodated and fixed on the inner side of the filter screen insert tube 2, and the inner side of the inner filter screen 32 is connected to one side of the valve body 1, and the outer side wall of the inner filter screen 32 is connected to the other side of the valve body 1; the outer filter screen 33 is sleeved outside the inner filter screen 32 and accommodated on the inner side of the filter insert tube, and the inner and outer sides of the outer filter screen 33 are connected to the two sides of the valve body 1, and the side wall of the outer filter screen 33 is bent and extended, thereby increasing the variable area and slowing down the surface clogging.

[0026] Reference Figure 1 , 2 The particle adsorption capsule 31 is fixed to the inner filter screen 32 and extends toward the outer filter screen 33. The particle adsorption capsule 31 is connected to both sides of the inner filter screen 32. The opening of the particle adsorption capsule 31 near the inner filter screen 32 is larger than that near the outer filter screen 33, so as to filter large impurities more specifically.

[0027] Reference Figure 1 ,3 The inner wall of the particle adsorption capsule 31 accommodates and fixes a winding ribbon 5, which wraps around the particles to enhance the adsorption capacity and at the same time provides a cushioning effect for the particles to prevent them from rubbing against each other and separating from the debris; the particle adsorption capsule 31 is provided with an elastic narrow opening 4 on one side close to the center of the filter screen insert tube 2, and the elastic narrow opening 4 is expanded by the pressure generated by the hydraulic wave structure 6 to allow impurities to enter.

[0028] Reference Figure 1 , 2 The hydraulic fluctuation structure 6 includes a resistance diaphragm 61 and a connecting spring piece 62. The resistance diaphragm 61 is arranged at the connection point between the inner filter screen 32 and the valve body 1; the connecting spring pieces 62 are respectively connected between the resistance diaphragm 61 and the filter screen insert tube 2 at intervals; when the liquid hits the resistance diaphragm 61, the resistance diaphragm 61 is driven by the connecting spring piece 62 to vibrate, so that the diameter between the resistance diaphragm 61 and the filter screen insert tube 2 changes continuously, thereby changing the hydraulic pressure inside the inner filter screen 32; when the hydraulic pressure at the center of the inner filter screen 32 increases, the elastic narrow mouth 4 is pressurized and expanded, and the particles enter the particle adsorption capsule 31; when the hydraulic pressure at the center of the filter screen insert tube 2 decreases, the elastic narrow mouth 4 is deformed to relieve pressure, and the opening size is inconvenient, so that the particles are not easy to escape from the particle adsorption capsule 31.

[0029] Reference Figure 1 , 2 The filter insert 2 is sealedly connected to the replacement window 7 at one end away from the valve body 1, and the inner filter 32 and the outer filter 33 are respectively clamped on the replacement window 7; the replacement window extends toward the inner side of the inner filter 32 and is fixed with a guide plate 8, and the guide plate 8 is inclined toward the corresponding particle adsorption capsule 31; the guide plate 8 can guide the particles to be closer to the particle adsorption capsule 31, so that they are easier to be adsorbed.

[0030] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flanged Y-type filter, comprising a valve body (1) and a filter screen insert (2) obliquely penetrated through the side wall of the valve body (1), characterized in that: The filter tube (2) is provided with a filter structure (3) therein, the filter structure (3) comprising a particle adsorption capsule (31) respectively connected to the center and the side wall of the filter tube (2), and an elastic narrow opening (4) is provided on the particle adsorption capsule (31) near the center of the filter tube (2); a hydraulic pressure fluctuation structure (6) is provided at the connection point between the valve body (1) and the center of the filter tube (2); when the hydraulic pressure at the center of the filter tube (2) increases, the elastic narrow opening (4) expands; when the hydraulic pressure at the center of the filter tube (2) decreases, the elastic narrow opening (4) deforms.

2. A flange type Y-type filter according to claim 1, characterized in that: The filtering structure (3) further comprises an inner filter screen (32) and an outer filter screen (33); the inner filter screen (32) is accommodated and fixed on the inner side of the filter screen insert tube (2), and the inner side of the inner filter screen (32) is connected to one side of the valve body (1), and the outer side wall of the inner filter screen (32) is connected to the other side of the valve body (1); the outer filter screen (33) is sleeved outside the inner filter screen (32) and accommodated on the inner side of the filter insert tube, and the inner and outer sides of the outer filter screen (33) are connected to the two sides of the valve body (1); the particle adsorption capsule (31) is fixed to the inner filter screen (32) and extends toward the outer filter screen (33), and the particle adsorption capsule (31) is respectively connected to the two sides of the inner screen of the inner filter screen (32), and the opening of the particle adsorption capsule (31) close to the inner filter screen (32) is larger than that close to the outer filter screen (33).

3. A flange type Y-type filter according to claim 2, characterized in that: The side wall of the outer filter screen (33) is bent and extended.

4. A flange type Y-type filter according to claim 2, characterized in that: The hydraulic fluctuation structure (6) comprises a resistance diaphragm (61) and a connecting spring sheet (62); the resistance diaphragm (61) is arranged at the connection point between the inner filter screen (32) and the valve body (1); and the connecting spring sheet (62) is respectively connected between the resistance diaphragm (61) and the filter screen insert tube (2) at intervals.

5. A flange type Y-type filter according to claim 1, characterized in that: The inner wall of the particle adsorption capsule (31) accommodates and fixes a winding ribbon (5).

6. A flange type Y-type filter according to claim 1, characterized in that: The filter screen insert tube (2) is sealedly connected to a replacement window (7) at one end away from the valve body (1), and the inner filter screen (32) and the outer filter screen (33) are respectively clamped on the replacement window (7); the replacement window extends toward the inner side of the inner filter screen (32) and is fixed with a guide plate (8), and the guide plate (8) is inclined toward the corresponding particle adsorption capsule (31).

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