High-viscosity kettle top feeding valve

Abstract

The utility model relates to a high-viscosity kettle top feed valve, which comprises a valve body, a valve core, a valve rod and a valve rod, the connecting flange is fixed at the bottom of the valve body; the valve seat is arranged at the outlet of the valve body and located between the valve body and the connecting flange; the valve rod vertically penetrates through the valve body, and a valve element matched with the valve seat is arranged at the end, located in the valve body, of the valve rod. A plurality of flow windows are arranged on the side wall of the valve core at equal intervals; the flow window is of a reducing structure from bottom to top; the inner cavity of the valve body is polished, the material flowing friction coefficient is reduced, it is guaranteed that materials flow smoothly, and the materials cannot adhere to the valve body, the valve element ascends and descends along with the valve rod, and the lower end of the valve element is provided with the flow adjusting window which is matched with the valve seat to achieve flow adjustment under different opening degrees. Flow channels with different sectional areas are formed at the bottoms of the flow window and the inlet, so that the flow and the flow speed of the material are reasonably controlled, and the function that the high-viscosity material enters the kettle is realized.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a high-viscosity kettle top feed valve. Background Art

[0002] Conventional kettle top feed valves are mainly inclined stem ball valves and C-type ball valves. However, for media with relatively high viscosity (viscosity of 2 million mPa.s at room temperature), the flow is slow and the media will adhere to the valve cavity and sealing surface for a long time, causing blockage and wear of the feed valve, which affects the service life of the entire device.

[0003] In summary, how to achieve high viscosity into the kettle and prevent blockage has become an urgent problem that researchers in this field need to solve. Utility Model Content

[0004] The technical problem to be solved by the utility model is: how to achieve high viscosity into the kettle to prevent blockage;

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The utility model is a high-viscosity kettle top feed valve, comprising: a valve body, which has an oblique inlet; a connecting flange, which is fixed at the bottom of the valve body; a valve seat, which is arranged at the outlet of the valve body and is located between the valve body and the connecting flange; a valve stem, which vertically passes through the valve body, and one end of which is located in the valve body is provided with a valve core matched with the valve seat; a plurality of flow windows are separately provided on the side wall of the valve core; the flow windows are in a shrinking structure from bottom to top;

[0007] The valve has both regulation and cut-off functions. The valve body is Y-shaped, and the angle between the axial direction of the inlet and the vertical line is a, which is generally designed to be 45° or 30°. The inner cavity of the valve body is polished to reduce the friction coefficient of material flow, ensure smooth material flow, and prevent it from sticking to the valve body. The valve core follows the valve stem to rise and fall. A flow adjustment window is opened at the lower end of the valve core, which cooperates with the valve seat to achieve flow adjustment at different openings. During the opening process, the flow window and the bottom of the inlet form flow channels with different cross-sectional areas, thereby reasonably controlling the flow and flow rate of the material; it fundamentally solves the defects of other types of feed valves such as sticking and clogging, making the feed smoother and more stable, and realizing the function of high viscosity entering the kettle.

[0008] In order to prevent the material from adhering to the top of the valve core, the utility model adopts that the top of the valve core has an inclined surface;

[0009] In this solution, there is an inclined surface on the top of the valve core, and when the material adheres to the inclined surface, it can slide down to the window.

[0010] In order to illustrate the connection between the valve core and the valve stem, the utility model adopts the valve core to be fixed on the valve stem through a locking nut; a semicircular groove is provided at the matching position between the outer wall of the valve stem and the inner hole of the valve core; a steel ball is placed in the semicircular groove to limit the rotation of the valve core relative to the valve stem;

[0011] In this solution, a semicircular groove is opened at the joint between the valve core and the valve stem. A steel ball is placed in the groove to prevent the valve core from rotating and to prevent relative rotation between the valve core and the valve stem. The connection between the valve stem and the valve core is achieved by setting a locking nut.

[0012] In order to prevent the material from being intercepted in the valve body, the utility model adopts that one of the flow windows of the valve core is directly facing the inlet;

[0013] For high-viscosity materials, in order to ensure that the flow window on the valve core is facing the inclined tube at the inlet when fully opened, that is, the material is discharged from the outlet directly through the flow window without being interfered by the valve core, so that the material is not trapped or blocked, the steel ball is set to ensure that the flow window is always facing the inlet.

[0014] In order to illustrate the sealing performance between the valve seat, the valve body, and the valve seat and the connecting flange, the utility model adopts that sealing gaskets are arranged between the valve seat, the connecting flange, and between the valve seat and the valve body;

[0015] By setting sealing gaskets, sealing gaskets are placed between the valve body and the valve seat, and between the valve seat and the connecting flange to ensure that the medium does not leak out.

[0016] In order to explain how the valve body and the valve stem are connected, the utility model adopts a guide sleeve and a sealing packing arranged between the valve stem and the valve body;

[0017] The guide sleeve can ensure that the valve stem is in a vertical state during movement, and the sealing packing ensures the sealing between the valve body and the valve stem.

[0018] The beneficial effects of the utility model are as follows: the utility model is a high-viscosity kettle top feed valve, the inner cavity of the valve body is polished to reduce the material flow friction coefficient, ensure smooth material flow, and will not stick to the valve body, the valve core follows the valve stem to rise and fall, and a flow adjustment window is opened at the lower end of the valve core, which cooperates with the valve seat to realize flow adjustment under different opening degrees. During the opening process, the flow window and the bottom of the inlet form flow channels with different cross-sectional areas, thereby reasonably controlling the flow rate and flow velocity of the material; it fundamentally solves the defects of other types of feed valves such as sticking and clogging, makes the feeding smoother and more stable, and realizes the function of high viscosity entering the kettle. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 Product structure diagram of the present invention

[0021] Figure 2 The structure diagram of the valve core

[0022] Figure 3 Flow cross-sectional area with different openings;

[0023] Among them: 1-valve body; 2-valve seat; 3-valve core; 4-valve stem; 5-guide sleeve; 6-packing component; 7-steel ball; 8-locking nut; 9-sealing gasket; 10-connecting flange; 11-inlet, 12-flow window, 13-inclined surface, 14-semicircular groove. DETAILED DESCRIPTION

[0024] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0025] like Figure 1-2 As shown, the utility model is a high-viscosity kettle top feed valve, comprising 1: a valve body, which has an oblique inlet 11; a connecting flange 10, which is fixed to the bottom of the valve body 1; a valve seat 2, which is arranged at the outlet of the valve body 1 and is located between the valve body 1 and the connecting flange 10; a valve stem 4, which vertically passes through the valve body 1, and one end of the valve stem 4 located in the valve body 1 is provided with a valve core 3 that matches the valve seat 2; a plurality of flow windows 12 are separately provided on the side wall of the valve core 3; the flow window 12 is a shrinking structure from bottom to top;

[0026] The valve has both regulation and cut-off functions. The valve body is Y-shaped. The angle between the axial direction of the inlet and the vertical line is a, which is generally designed to be 45° or 30°. The inner cavity of the valve body is polished to reduce the friction coefficient of material flow and ensure smooth material flow without adhesion to the valve body. The valve core rises and falls with the valve stem. There is a flow adjustment window at the lower end of the valve core, which cooperates with the valve seat to achieve flow adjustment at different openings, such as Figure 3 As shown, during the opening process, flow channels with different cross-sectional areas are formed at the flow window and the bottom of the inlet, thereby reasonably controlling the flow rate and flow velocity of the material; fundamentally solving the defects of other types of feed valves such as sticking and clogging, making the feed smoother and more stable, and realizing the function of high viscosity entering the kettle.

[0027] like Figure 1-2 As shown, in order to prevent the material from adhering to the top of the valve core, the utility model adopts that the top of the valve core 3 has a slope 13;

[0028] In this solution, there is an inclined surface on the top of the valve core, and when the material adheres to the inclined surface, it can slide down to the window.

[0029] like Figure 1-2As shown, in order to illustrate the connection between the valve core and the valve stem, the utility model adopts the valve core 3 to be fixed on the valve stem 4 through a locking nut 8; a semicircular groove 14 is provided at the outer wall of the valve stem 4 and the inner hole of the valve core 3; a steel ball 7 is placed in the semicircular groove 14 to limit the rotation of the valve core 3 relative to the valve stem 4;

[0030] In this solution, a semicircular groove is opened at the joint between the valve core and the valve stem. A steel ball is placed in the groove to prevent the valve core from rotating and to prevent relative rotation between the valve core and the valve stem. The connection between the valve stem and the valve core is achieved by setting a locking nut.

[0031] like Figure 1-2 As shown, in order to prevent the material from being intercepted in the valve body, the utility model adopts one of the flow windows 12 of the valve core facing the inlet 11;

[0032] For high-viscosity materials, in order to ensure that the flow window on the valve core is facing the inclined tube at the inlet when fully opened, that is, the material is discharged from the outlet directly through the flow window without being interfered by the valve core, so that the material is not trapped or blocked, the steel ball is set to ensure that the flow window is always facing the inlet.

[0033] like Figure 1 As shown, in order to illustrate the sealing performance between the valve seat, the valve body, and the valve seat and the connecting flange, the utility model adopts that sealing gaskets are arranged between the valve seat 3 and the connecting flange 10 and between the valve seat 2 and the valve body 1;

[0034] By setting sealing gaskets, sealing gaskets are placed between the valve body and the valve seat, and between the valve seat and the connecting flange to ensure that the medium does not leak out.

[0035] like Figure 1 As shown, in order to illustrate how the valve body and the valve stem are connected, the utility model adopts a guide sleeve 5 and a sealing packing 6 disposed between the valve stem 4 and the valve body 1;

[0036] The guide sleeve can ensure that the valve stem is in a vertical state during movement, and the sealing packing ensures the sealing between the valve body and the valve stem.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. High viscosity kettle top feed valve, characterized by: include: The valve body has a polished inner cavity and an oblique inlet; A connecting flange fixed to the bottom of the valve body; A valve seat, which is arranged at the outlet of the valve body and located between the valve body and the connecting flange; A valve stem vertically passes through the valve body, and one end of the valve stem located within the valve body is provided with a valve core that cooperates with the valve seat; The side wall of the valve core is separately provided with a plurality of flow windows; The flow window is a decreasing structure from bottom to top.

2. The high viscosity kettle top feed valve according to claim 1, characterized in that: The top of the valve core has an inclined surface.

3. The high viscosity kettle top feed valve according to claim 1, characterized in that: The valve core is fixed to the valve stem via a locking nut; A semicircular groove is provided at the matching position between the outer wall of the valve stem and the inner hole of the valve core; The steel ball is placed in the semicircular groove to limit the rotation of the valve core relative to the valve stem.

4. The high viscosity kettle top feed valve according to claim 1, characterized in that: One of the flow windows of the valve core faces the inlet.

5. The high viscosity kettle top feed valve according to claim 1, characterized in that: Sealing gaskets are arranged between the valve seat and the connecting flange and between the valve seat and the valve body.

6. The high viscosity kettle top feed valve according to claim 1, characterized in that: A guide sleeve and sealing filler are arranged between the valve stem and the valve body.

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