Inflation sealing filtering half-ball valve

Abstract

The utility model provides an inflatable sealing and filtering half-ball valve, which is mainly characterized in that a half-ball valve core and a valve body are sealed by an inflatable air bag, a filter screen is arranged on the upper end face of the half-ball valve core, and a liquid discharge flow channel is arranged in the valve core and a valve rod of the half-ball valve. The valve plate can be mounted at the bottom of the reaction kettle and used for discharging powder materials, and the materials can be filtered through the filter screen arranged on the valve plate. The inflatable sealing filtering semi-ball valve is simple in structure, novel in sealing structure and free of cleaning and sterilization blind areas, meets the hygienic or sterile use requirements better, and is mainly applied to the fields of food, medicine, chemical engineering and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of hemispherical valves, in particular to an inflatable sealing filtering hemispherical valve. Background Art

[0002] In industries such as biopharmaceuticals and food processing, it is often necessary to filter, screen or filter the materials inside the container.

[0003] The stirring paddle will stir. In order to facilitate the discharge of materials in the container, the hemispherical valve is generally installed at the bottom of the container. The material in the container is discharged by controlling the rotation of the hemispherical valve core. The main function of the traditional hemispherical valve is to open or cut off, and it is usually only used for the discharge of powder solid materials, but not for the diversion of solid materials and liquid materials.

[0004] The "hemispherical ball valve" disclosed in application number CN201810624723.7 has a valve disc on the outer circle of the hemispherical body.

[0005] The valve disc is installed on the outer circle of the hemisphere through threads. The valve disc is a tubular structure. One end of the valve disc is provided with a valve disc sealing surface that can form a seal with the valve seat sealing surface and form a spherical surface. The other end of the valve disc is provided with an adjusting tongue on the upper part, and an adjusting groove is provided on the end of the adjusting tongue. The upper rotating head is provided with an adjusting mouth, and the adjusting tongue extends into the adjusting mouth. The upper rotating head is provided with an inner wall that matches the outer circle of the lower end of the upper outer rod. An opening and closing groove is provided on the inner wall, and the opening and closing groove is placed on one side of the adjusting mouth. A vertical straight groove is provided at the lower part of the upper outer rod, and a blind hole is provided inside the upper outer rod. An upper inner rod is provided in the blind hole, a reset spring is provided between the lower end surface of the upper inner rod and the bottom surface of the blind hole, and a clamping device is provided at the lower part of the upper inner rod. It has the advantages of no friction between the valve seat sealing surface and the valve disc sealing surface, long service life and high safety. This technology mainly solves the problems of safe self-locking and service life of the valve during the switching process by optimizing the structure. In addition, its structure has too many blind spots for cleaning and sterilization, which does not meet the requirements of sanitary valves and is usually not used in industries with hygiene requirements such as food and medicine. It also does not enable the valve to have the function of separating solids and liquids from materials.

[0006] Another example is the "A sterile discharge hemispherical valve" disclosed in patent number ZL 202122148800.6, the valve includes

[0007] The valve body has a driving end sleeve fixedly connected to one side of the valve body, and the driving end shaft rotates inside and is connected to the driving end valve stem. The other side of the valve body has a driven end sleeve fixedly connected to the driven end shaft sleeve, and the driven end valve stem is rotated inside the driven end sleeve. A hemisphere is placed in the valve body, and mounting rods are welded to both ends of the lower surface of the hemisphere. The utility model can retain the sealing performance of an ordinary discharge ball valve through a hemisphere valve, solve the leakage problem of long-term use, and solve the problems of residue and difficulty in cleaning and disassembly of ordinary ball valves, ensure the sealing performance of the discharge port, and ensure that the material is cleaned during different batches of production without residue in the valve body. Although the valve meets the requirements of sanitary applications, it does not have the function of separating solids and liquids from materials. Utility Model Content

[0008] In order to overcome the problems of the prior art, the utility model provides an inflatable sealed filtering hemispherical valve, the main features of which are

[0009] The hemispherical valve core and the valve body are sealed with an inflatable airbag, and a filter screen is set on the upper end surface of the hemispherical valve core, and a drainage channel is set in the valve core and valve stem of the hemispherical valve. It can not only be installed at the bottom of the reactor for discharging powder materials, but also filter materials through the filter screen set on the valve plate.

[0010] The technical solution adopted by the utility model to solve the technical problem is: a filter screen is arranged on the upper end surface of the spherical valve core.

[0011] A liquid discharge channel is arranged inside the valve core and the valve stem, and the liquid in the material can enter the channel through the filter screen and then be discharged, thereby achieving the purpose of solid-liquid separation.

[0012] After the inflatable sealed filter semi-ball valve is installed at the bottom of the container, its filter screen and the internal flow channel of the valve body are located at the low point in the container, which can ensure that the liquid in the material can be fully discharged.

[0013] The inflatable sealed filtering hemispherical valve seals the spherical surface of the hemispherical valve core through an inflatable airbag. The airbag is in a retracted state when not inflated, so the valve core does not contact or rub against the seal during the reciprocating rotation within the set angle range. This design not only ensures the service life of the seal, but more importantly, does not produce debris due to friction, which is more suitable for use in sanitary and sterile scenarios; and the valve has a simple structure and is easy to clean and sterilize. It is mainly used in food, medicine, chemical and other fields.

[0014] The beneficial effect of the utility model is that the hemispherical valve core and the valve body of the valve are sealed by an inflatable air bag.

[0015] The sealing airbag can be effectively retracted during the rotation of the valve core of the switch valve, and the service life of the sealing component is longer than that of the traditional hemispherical valve, so the use and maintenance costs of the valve are lower.

[0016] An annular airflow channel is arranged on the valve body gland of the inflatable sealed filter semi-ball valve, and a plurality of purge ports are evenly distributed on the circumference of the channel, and an external pipeline is arranged on the annular channel. When the inflatable sealed filter semi-ball valve is applied to a three-in-one device (filter washing and drying machine), during the washing process, a catalyst can be injected or aeration can be performed through the pipeline, thereby enhancing the washing efficiency.

[0017] When the inflatable sealed filter hemispheric valve is used for powder discharging, due to the differences in fluidity, bulk density, stacking angle and other characteristics of certain materials, stacking and bridging may occur at the bottom of the container, affecting normal discharging. At this time, intermittent blowing of air to the annular flow channel can be used to break the stacking and bridging, thereby enabling smooth discharging.

[0018] A liquid discharge port is arranged at one end of the inflatable sealed filtering hemispherical valve and a rotary joint is installed. The rotary joint can be fixed on an external bracket, so that the liquid discharge pipe port can be in a fixed position and is not affected by the rotation of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0020] Figure 1 It is a full cutaway schematic diagram of the utility model;

[0021] Figure 2 It is a top view of the utility model;

[0022] Figure 3 This is a schematic diagram of the utility model installed at the bottom of the reactor;

[0023] Figure 4 This is a schematic diagram of the spherical valve core structure of the utility model;

[0024] In the figure, 1. valve body, 2. valve cover, 3. hemispherical valve core, 4. sealing airbag, 5. airbag frame, 6. O-ring 1, 7. O-ring 2, 8. connecting pipe, 9. driven end cover, 10. driven shaft, 11. bearing, 12. O-ring 3, 13. O-ring 4, 14. rotary joint, 15. fixing plate, 16. main end bracket, 17. driving shaft, 18. driver, 19. reactor, 20. stirring paddle, 21. dividing line. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected",

[0027] "Connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection;

[0028] It can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium.

[0029] It can be the internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] [Example 1]

[0031] like Figure 1 As shown: The utility model mainly consists of 1. valve body, 2. valve cover, 3. hemispherical valve core, 4. sealing airbag, 5. airbag

[0032] It consists of 18 parts in total: frame, 6. O-ring one, 7. O-ring two, 8. connecting pipe, 9. driven end cover, 10. driven shaft, 11. bearing, 12. O-ring three, 13. O-ring four, 14. rotating joint, 15. fixing plate, 16. main end bracket, 17. driving shaft, 18. driver, etc.

[0033] [Example 2]

[0034] like Figure 1 As shown in the figure, 1. The valve body is a spherical rotating body part, which is processed and installed symmetrically on the left and right sides of the valve body.

[0035] The hole is used to install 3. hemispherical valve core and 9. driven end cover, 10. driven shaft, 16. main end bracket, 17. driving shaft; 3. hemispherical valve core can rotate freely along the central axis in 1. valve body under the support of 11. bearing.

[0036] 10. The driven shaft and 17. the driving shaft are installed on both sides of the valve body through 11. the bearing support and through 12. the o-ring.

[0037] 13. O-ring 4 is sealed between 1. valve body. 3. Hemispherical valve core is also sealed between 10. driven shaft and 17. driving shaft through 12. O-ring 3.

[0038] 17. The driving shaft is connected to 18. the driver through 16. the main end bracket, and the driver rotates to drive 17. the driving shaft and 3. the hemispherical valve

[0039] The core rotates and 10. the driven shaft rotates.

[0040] 10. A swivel joint is installed on the outside of the driven shaft. The swivel joint is installed on the external bracket 15. A fixed plate. Balls and sealing rings are arranged inside the swivel joint to ensure that the joint is not affected by the rotation of the hemispherical valve core 3 while fixing the discharge.

[0041] [Example 3]

[0042] like Figure 1 As shown: 4. The sealing airbag is designed as a U-shaped structure, the inner cavity of which is supported by 5. the airbag frame and by 2.

[0043] The valve cover is installed to the upper end face of the valve body 1. An annular air flow channel is set on the side of the airbag frame, and this channel is connected with the air hole processed on the valve body. 2. The valve cover is sealed with the valve body 1. through 7. O-ring 2.

[0044] By inflating and deflating the air holes on the 1. valve body, the inflation and deflation of the airbag are controlled. 5. When the airbag is inflated, its annular sealing ring expands evenly and fits tightly with the spherical surface of the 3. hemispherical valve core to achieve airtight locking of the valve. Figure 1 , Figure 2 As shown: 2. An annular groove 2-1 is provided on the upper part of the valve cover, and multiple 2-2 purge ports 2-1 are provided on the annular groove 2-2; 8. A pipe is installed on the side of the valve cover 2 and is connected to the 2-1 annular groove and 2-2 purge ports on the valve cover 2.

[0045] The connecting pipe, 2-1. annular groove, and 2-2. purge port can introduce airflow into the interior of the valve body to achieve the purpose of adding catalyst or aeration.

[0046] [Example 4]

[0047] like Figure 1 As shown: 1. The valve body is a rotating body component, and a step groove is processed on the top for installing 4. Sealing airbag, 5.

[0048] Airbag frame. The valve body can be made of stainless steel, aluminum alloy, polymer synthetic plastic, etc. The processing methods include but are not limited to casting, forging, injection molding, welding, turning, milling, etc. The main materials include but are not limited to SUS201, SUS301, SUS304, SUS304L, SUS316, SUS316L, AL5052, AL6061, AL7075, POM, PE, PET, PEEK, PVC, PP, ABS, PC, PTFE, PS, nylon, etc.

[0049] like Figure 1 , Figure 3 As shown: 2. The valve cover is also a rotating body part, and the groove on the top is used to install 6. O-ring 1,

[0050] When the inflatable sealed filter hemispheric valve is installed with the reactor, the 6. O-ring plays a sealing role. 2. The valve cover can be made of stainless steel, aluminum alloy, polymer synthetic plastic, etc. The processing methods include but are not limited to casting, forging, injection molding, welding, turning, milling, etc. The main materials include but are not limited to SUS201, SUS301, SUS304, SUS304L, SUS316, SUS316L, AL5052, AL6061, AL7075, POM, PE, PET, PEEK, PVC, PP, ABS, PC, PTFE, PS, nylon, etc.

[0051] [Example 5]

[0052] like Figure 3 As shown: An inflatable sealed filter hemispherical valve, which is usually installed at the bottom of the reactor for use in the reactor.

[0053] Unloading of materials inside. Figure 3 The figure shows a working condition in which there is a suspended liquid material in the kettle and it is stirred, washed and filtered by the stirring paddle 20, and the liquid is discharged through the drain port on the side wall of the reactor 19. As can be seen from the figure, since the valve is installed at the bottom of the reactor, but the drain pipe of the reactor cannot be set to the bottom due to the limitation of the structural space, in actual application, the liquid in the material below the dividing line 21 shown in the figure cannot be discharged through the drain port on the kettle body. The material below the dividing line 21 can only be fully mixed with the material above by stirring the stirring paddle to achieve the purpose of sufficient washing. This greatly increases the washing time.

[0054] like Figure 4As shown, the 3-spherical valve core is mainly composed of 3-1. right oblique rod, 3-5. left oblique rod, and 3-2 valve plate; 3-3. filter screen is set on the upper end surface of 3-2 valve plate. 3-4. drainage cavity is processed inside 3-2 valve plate, and 3-6. drainage channel is processed inside 3-5. left oblique rod; the lowest point of 3-4. drainage cavity is connected to 3-6. drainage channel; 3. hemispherical valve core is connected to the outside world 14. rotary joint through 10. driven shaft.

[0055] A liquid flow channel is also provided at the center of the driven shaft 10. Based on the above, when the liquid passes through 3-3.

[0056] The filter screen flows into the drainage cavity 3-4 and can be discharged through the drainage channel 3-6 and the rotary joint 14.

[0057] In actual engineering applications, 3. the hemispherical valve core is the lowest point in contact with the material in the true sense, and the above 21.

[0058] The liquid in the material below the dividing line can pass through the 14. rotary joint, without increasing the washing and filtration time, which can greatly improve the washing and filtration efficiency.

Claims

1. An inflatable sealed filtering hemispherical valve, comprising a valve body (1), a valve cover (2), a hemispherical valve core (3), a sealing airbag (4), an airbag frame (5), an O-ring 1 (6), an O-ring 2 (7), a pipe (8), a driven end cover (9), a driven shaft (10), a bearing (11), an O-ring 3 (12), an O-ring 4 (13), a rotating joint (14), a fixing plate (15), a main end bracket (16), a driving shaft (17), and a driver (18); wherein the valve body comprises: Installation holes are machined at symmetrical positions on the left and right sides of the valve body (1) for installing a hemispherical valve core (3), a driven end cover (9), a driven shaft (10), a main end bracket (16), a driving shaft (17), and a bearing (11); the hemispherical valve core (3) is mainly composed of a right oblique rod (3-1), a left oblique rod (3-5), and a valve plate (3-2); a filter screen (3-3) is arranged on the upper end surface of the valve plate (3-2); a liquid discharge cavity (3-4) is machined inside the valve plate (3-2), and a liquid discharge flow channel (3-6) is machined inside the left oblique rod (3-5); the lowest point of the liquid discharge cavity (3-4) is connected to the liquid discharge flow channel (3-6); the hemispherical valve core (3) is connected to an external rotary joint (14) through the driven shaft (10); and a liquid flow channel is also arranged at the center of the driven shaft (10).

2. The inflatable sealed filtering hemispherical valve according to claim 1, characterized in that The driven shaft (10) and the driving shaft (17) are mounted on both sides of the valve body (1) through the support of the bearing (11), and are sealed between the valve body (1) through the O-ring three (12) and the O-ring four (13); the hemispherical valve core (3) is also sealed with the driven shaft (10) and the driving shaft (17) through the O-ring three (12).

3. The inflatable sealed filtering hemispherical valve according to claim 1, characterized in that The driving shaft (17) is connected to the driver (18) through the main end bracket (16); a rotary joint (14) is installed on the outside of the driven shaft (10), the rotary joint (14) is installed on the external bracket fixing plate (15), and a ball bearing and a sealing ring are arranged inside the rotary joint (14).

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