Anti-crystallization and anti-erosion feed valve with protection and guiding functions

Abstract

This utility model discloses a discharge valve with protective and guiding functions to prevent crystallization and erosion, relating to the field of valve technology. The discharge valve includes a valve seat, a valve body, a valve stem, a guide anti-erosion sleeve, and a guide base. This discharge valve, by adding a guide anti-erosion sleeve and a guide base inside a traditional discharge valve, guides the valve stem, improving the stability of valve lifting and lowering, reducing valve stem swaying and deviation during movement, and lowering the risk of valve seal failure due to unstable valve stem movement. Simultaneously, it reduces the contact area between the valve stem and the medium, preventing medium particles from adhering to the valve stem surface and preventing particulate medium from being carried into the stuffing box, improving the reliability of the valve seal, reducing packing wear and leakage problems caused by medium particles entering the stuffing box, and extending the service life of the packing.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a discharge valve with protective and guiding functions that prevents crystallization and erosion. Background Technology

[0002] A discharge valve is a valve device used to control the discharge of materials from the bottom of equipment such as reactors, storage tanks, and containers. It is a key piece of equipment in the field of industrial process control. By opening or closing the valve channel, it precisely regulates the outflow of materials, ensuring the continuity, safety, and stability of the process.

[0003] Traditional discharge valves, in their structural design, involve the valve stem directly contacting a large area of ​​the medium containing viscous particles during valve opening and closing. This severe erosion of the valve stem by the medium leads to accelerated surface wear, reducing its service life. Simultaneously, the particles easily adhere to the valve stem surface and are carried into the stuffing box, affecting the sealing performance of the packing and causing leakage. Furthermore, the valve stem lacks guidance during movement, making it prone to swaying and misalignment, resulting in unstable valve operation and affecting operational accuracy and sealing performance. To address these shortcomings, this invention provides a discharge valve with protective and guiding functions, preventing crystallization and erosion, thus solving the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a discharge valve with protective and guiding functions, preventing crystallization and erosion. A guide anti-erosion sleeve and a guide base are added inside the traditional discharge valve to guide the valve stem, improving the stability of valve lifting and lowering, reducing valve stem swaying and deviation during movement, and lowering the risk of valve seal failure due to unstable valve stem movement. Simultaneously, reducing the contact area between the valve stem and the medium prevents medium particles from adhering to the valve stem surface, preventing particulate medium from being carried into the stuffing box, improving the reliability of the valve seal, reducing packing wear and leakage problems caused by medium particles entering the stuffing box, extending the service life of the packing, and lowering maintenance costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a discharge valve with protective and guiding functions for preventing crystallization and erosion, including a valve seat, a valve body, a valve stem, a guide anti-erosion sleeve, and a guide base;

[0006] The valve body is mounted on the valve seat;

[0007] The valve stem is slidably connected inside the valve seat and the valve body, and the bottom of the valve stem is provided with a valve disc body;

[0008] A guide anti-erosion sleeve is disposed inside the valve body and sleeved on the outside of the valve stem;

[0009] The guide base is disposed within the valve seat and is used to limit the valve stem.

[0010] Preferably, the guide base includes:

[0011] The inner ring is sleeved on the outside of the valve stem and connected to the guide anti-erosion sleeve;

[0012] Reinforcing ribs are provided on the outer side of the inner ring;

[0013] The outer ring is disposed on the reinforcing rib and fixed to the valve seat.

[0014] Preferably, the inner ring has a graphite ring inside, and the graphite ring is in contact with the valve stem.

[0015] Preferably, a packing pad is movably engaged between the valve body and the valve stem, and a packing body is provided on the packing pad.

[0016] Preferably, a packing sleeve is provided above the packing body, and a packing pressure plate is provided above the packing sleeve, the packing pressure plate being engaged with the valve body.

[0017] Preferably, a column is provided above the valve body, and a support is provided on the column, the support being threadedly connected to the valve stem.

[0018] Preferably, the support is provided with a drive handwheel for driving the valve stem to rotate.

[0019] Preferably, the valve disc body is provided with a valve disc cover, which is snapped into the valve stem.

[0020] This utility model discloses a discharge valve with protective and guiding functions to prevent crystallization and erosion, which has the following beneficial effects:

[0021] This anti-crystallization and anti-erosion discharge valve, with its protective and guiding functions, incorporates a guide anti-erosion sleeve and guide base inside the traditional discharge valve. This guides the valve stem, improving the stability of valve lifting and lowering, reducing stem swaying and deviation during movement, and lowering the risk of valve seal failure due to unstable stem movement. Simultaneously, it reduces the contact area between the valve stem and the medium, preventing medium particles from adhering to the valve stem surface and preventing particulate medium from being carried into the stuffing box. This improves the reliability of the valve's seal, reduces packing wear and leakage caused by medium particles entering the stuffing box, extends the packing's service life, and lowers maintenance costs. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This utility model Figure 1 Enlarged view of section A in the middle;

[0025] Figure 3 This is a schematic diagram of the structure of the guide base of this utility model.

[0026] In the diagram: 1. Valve seat; 2. Valve body; 21. Packing gasket; 22. Packing body; 23. Packing sleeve; 24. Packing plate; 3. Valve stem; 31. Valve disc body; 32. Valve disc cover; 4. Guide anti-erosion sleeve; 5. Guide base; 51. Inner ring; 511. Graphite ring; 52. Reinforcing rib; 53. Outer ring; 6. Column; 7. Support; 8. Drive handwheel. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] This application provides a discharge valve with protective and guiding functions to prevent crystallization and erosion. This solves the problems of traditional discharge valves where the valve stem directly contacts a large area of ​​viscous particulate media during valve opening and closing, causing severe erosion and increased wear on the valve stem surface, reducing its service life. Furthermore, particulate media easily adheres to the valve stem surface and is carried into the stuffing box, affecting the sealing performance of the packing and causing media leakage. Additionally, the valve stem lacks guidance during movement, making it prone to swaying and deviation, leading to unstable valve operation and affecting the valve's operational accuracy and sealing performance.

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] Example 1:

[0031] This utility model discloses a discharge valve with protective and guiding functions to prevent crystallization and erosion, according to the appendix. Figure 1-3 As shown, it includes a valve seat 1, a valve body 2, a valve stem 3, a guide anti-erosion sleeve 4, and a guide base 5;

[0032] Valve seat 1 serves as the basic support component of the entire discharge valve, providing an installation position for other components, bearing various forces generated during the opening and closing of the valve, and ensuring the overall stability of the valve.

[0033] The valve body 2 is mounted on the valve seat 1, forming the main outer shell structure of the valve, containing the medium and protecting the internal components. At the same time, it forms a certain space with the valve stem 3, providing an installation environment for sealing components such as the packing gasket 21 and the packing body 22, and preventing medium leakage.

[0034] The valve stem 3 is slidably connected inside the valve seat 1 and the valve body 2, and is the actuator for opening and closing the valve. A valve disc body 31 is located at its bottom; the up-and-down movement of the valve stem 3 drives the valve disc body 31 to achieve the opening and closing of the valve. During the opening and closing process, the valve stem 3 is subjected to tensile, compressive, and torsional forces.

[0035] The guide anti-erosion sleeve 4 is placed inside the valve body 2 and sleeved on the outside of the valve stem 3. On the one hand, it provides guidance to the valve stem 3, ensuring that the valve stem 3 maintains linear movement during operation and improving the stability of valve lifting and lowering; on the other hand, it greatly reduces the contact area between the valve stem 3 and the medium, preventing medium particles from adhering to the surface of the valve stem 3, preventing particulate medium from being carried into the stuffing box, and improving the reliability of the valve seal.

[0036] Before installing the valve stem 3, first install the guide anti-scouring sleeve 4 into the designated position inside the valve body 2 to ensure that it is firmly connected to the valve body 2 and can play a normal guiding and anti-scouring role when it is sleeved on the outside of the valve stem 3.

[0037] The guide base 5 is disposed inside the valve seat 1 and is used to limit the valve stem 3. It includes an inner ring 51, a reinforcing rib 52, and an outer ring 53.

[0038] The inner ring 51 is fitted on the outside of the valve stem 3 and connected to the guide anti-scouring sleeve 4 to provide further guidance and support for the valve stem 3; the reinforcing rib 52 is set on the outside of the inner ring 51 to enhance the overall strength of the guide base 5; the outer ring 53 is set on the reinforcing rib 52 and fixed to the valve seat 1 to ensure the stability of the guide base 5 in the valve seat 1.

[0039] Example 2:

[0040] This utility model discloses a discharge valve with protective and guiding functions to prevent crystallization and erosion, according to the appendix. Figure 1-3As shown, it includes a valve seat 1, a valve body 2, a valve stem 3, a guide anti-erosion sleeve 4, and a guide base 5;

[0041] The valve body 2 is mounted on the valve seat 1;

[0042] The valve stem 3 is slidably connected inside the valve seat 1 and the valve body 2, and the valve stem 3 has a valve disc body 31 at the bottom.

[0043] The guide anti-erosion sleeve 4 is set inside the valve body 2 and sleeved on the outside of the valve stem 3;

[0044] The guide base 5 is disposed inside the valve seat 1 and is used to limit the valve stem 3.

[0045] Guide base 5 includes:

[0046] The inner ring 51 is sleeved on the outside of the valve stem 3 and connected to the guide anti-scouring sleeve 4;

[0047] Reinforcing rib 52 is located on the outer side of the inner ring 51;

[0048] The outer ring 53 is set on the reinforcing rib 52 and fixed to the valve seat 1.

[0049] The inner ring 51 has a graphite ring 511 inside, which fits against the valve stem 3. The graphite ring 511 reduces the friction of the valve stem 3 during movement and ensures sealing performance.

[0050] A packing pad 21 is movably engaged between the valve body 2 and the valve stem 3. A packing body 22 is provided on the packing pad 21. A packing sleeve 23 is provided above the packing body 22. A packing pressure plate 24 is provided above the packing sleeve 23. The packing pressure plate 24 is engaged with the valve body 2.

[0051] The packing gasket 21 and packing body 22 are used to ensure good sealing between the valve body 2 and the valve stem 3. The packing sleeve 23 and packing pressure plate 24 are used to limit the packing gasket 21 and packing body 22. The packing pressure plate 24 is fixedly connected to the valve body 2 by bolts.

[0052] A column 6 is provided on the upper part of the valve body 2, and a support 7 is provided on the column 6. The support 7 is threadedly connected to the valve stem 3. A drive handwheel 8 for driving the valve stem 3 to rotate is provided on the support 7. The column 6 is located on the upper part of the valve body 2 and provides installation support for the support 7, ensuring the stability of the support 7, thereby ensuring the limiting effect on the upper end of the valve stem 3.

[0053] The support 7 is mounted on the column 6 to limit the upper end of the valve stem 3, ensuring the stability of the valve stem 3 during movement and preventing it from shaking or shifting. Simultaneously, the support 7 is equipped with a drive handwheel 8 for rotating the valve stem 3. By operating the drive handwheel 8, the valve stem 3 is rotated, causing it to spiral down or up, thus opening and closing the valve.

[0054] A valve disc cover 32 is provided on the valve disc body 31, and the valve disc cover 32 is snapped into the valve stem 3. The valve disc body 31 is located at the bottom of the valve stem 3 and is a key component for the valve to achieve opening and closing sealing. When the valve is closed, the valve disc body 31 is tightly fitted with the valve seat 1, preventing the medium from passing through; when the valve is open, the valve disc body 31 separates from the valve seat 1, allowing the medium to flow. The valve disc cover 32 is snapped into the valve stem 3 to fix the valve disc body 31, ensuring that the valve disc body 31 is firmly connected to the valve stem 3 and can accurately follow the movement of the valve stem 3.

[0055] When installing the valve stem 3, the valve disc body 31 is installed at the bottom of the valve stem 3 and is securely fastened to the valve stem 3 by the valve disc cover 32, ensuring that the valve disc body 31 can work normally during the opening and closing of the valve.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A crystallization and scouring prevention feed valve with protection and guiding functions, characterized in that, include: Valve seat (1); The valve body (2) is disposed on the valve seat (1); The valve stem (3) is slidably connected inside the valve seat (1) and the valve body (2), and the bottom of the valve stem (3) is provided with a valve disc body (31). A guide anti-erosion sleeve (4) is provided inside the valve body (2) and sleeved on the outside of the valve stem (3); The guide base (5) is disposed inside the valve seat (1) and is used to limit the valve stem (3).

2. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 1, characterized in that, The guide base (5) includes: The inner ring (51) is sleeved on the outside of the valve stem (3) and connected to the guide anti-scouring sleeve (4); A reinforcing rib (52) is provided on the outside of the inner ring (51); The outer ring (53) is disposed on the reinforcing rib (52) and fixed to the valve seat (1).

3. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 2, characterized in that, The inner ring (51) is provided with a graphite ring (511) inside, and the graphite ring (511) is in contact with the valve stem (3).

4. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 1, characterized in that, A packing pad (21) is movably engaged between the valve body (2) and the valve stem (3), and a packing body (22) is provided on the packing pad (21).

5. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 4, characterized in that, A packing sleeve (23) is provided above the packing body (22), and a packing pressure plate (24) is provided above the packing sleeve (23). The packing pressure plate (24) is engaged with the valve body (2).

6. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 1, characterized in that, A column (6) is provided above the valve body (2), and a support (7) is provided on the column (6). The support (7) is threadedly connected to the valve stem (3).

7. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 6, characterized in that, The support (7) is provided with a drive handwheel (8) for driving the valve stem (3) to rotate.

8. The anti-crystallization and anti-washing feed valve with protection and guide functions according to claim 1, characterized in that, The valve disc body (31) is provided with a valve disc cover (32), which is engaged with the valve stem (3).

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