Sleeve type regulating valve with wave spring on valve core
By introducing a sealing ring, O-ring, and wave spring into the sleeve-type control valve, combined with the initial compression of the pressure ring, the problem of the sleeve-type control valve being unable to achieve double sealing is solved, and a high standard of sealing effect is achieved.
Patent Information
- Application Number
- CN202520038834.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-01-08
AI Technical Summary
Existing sleeve-type control valves cannot achieve double sealing when closed, resulting in significant leakage and failing to meet high leakage level requirements.
Design a sleeve-type regulating valve with a valve core and a wave spring. By setting a sealing ring, an O-ring and a wave spring on the valve core, and using the pressure ring to initially compress the wave spring, combined with the axial force of the valve stem, a double seal is achieved, ensuring that the sealing surface contacts the sleeve first when the valve is closed.
It achieves effective sealing of the valve in the closed state, meets high standard leakage level requirements, and reduces leakage.
Smart Images
Figure CN223609339U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to valve technical field especially relates to a sleeve type regulating valve with valve core wave spring. BACKGROUND
[0002] There are large demands for regulating valves in the existing petrochemical chemical industry, electric power, environmental protection and other fields, and the regulating valves under such working conditions mostly involve large-diameter high pressure, so there is a large demand for sleeve type regulating valves.
[0003] The sleeve type regulating valve is mainly composed of a valve body, a valve seat, a valve core, a sleeve, a valve cover, a valve rod and other parts, and the structural feature is that the inner parts of the valve adopt a combination of the valve core and the sleeve, the inner surface of the sleeve serves as a guide for the valve core, and a plurality of throttling windows are formed on the outer circle of the sleeve, and the shape of the window determines the flow characteristics of the regulating valve. UTILITY MODEL CONTENTS
[0004] The utility model discloses a sleeve type regulating valve with valve core wave spring, which solves the problem of large leakage in the closed state and cannot meet the high-standard leakage level in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The utility model discloses a sleeve type regulating valve with valve core wave spring, which solves the problem of large leakage in the closed state and cannot meet the high-standard leakage level in the prior art.
[0007] Preferably, the upper end of the valve rod is fixedly connected with a rotating disc.
[0008] Preferably, the O-shaped ring is a corrosion-resistant rubber ring.
[0009] Preferably, the inner bottom end of the valve body is connected with a thickened sheet, and the upper end of the thickened sheet is sprayed with an anti-abrasion coating layer.
[0010] Preferably, the anti-abrasion coating layer is a ceramic coating layer.
[0011] The sleeve type regulating valve with the valve core and the wave spring has the advantages that:
[0012] The compression ring and the valve core are assembled through threads, the compression ring forms initial compression of the wave spring, the sealing surface of the sealing ring first contacts the sleeve when the valve is closed, the sealing surface of the valve core secondly contacts the sleeve, the spring force of the wave spring is used to effectively seal the upper sealing, the valve is closed under the double actions of the axial force of the valve rod and the spring force of the wave spring, the upper and lower sealings can be effectively sealed at the same time, and the requirements of high-standard leakage level of the valve core are met. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The utility model provides a sleeve type regulating valve with the valve core and the wave spring, and a structure schematic view of the sleeve type regulating valve is shown in the figure;
[0014] Figure 2 The utility model provides a sleeve type regulating valve with the valve core and the wave spring, and a sectional structure schematic view of the sleeve type regulating valve is shown in the figure;
[0015] Figure 3 The utility model provides a sleeve type regulating valve with the valve core and the wave spring, and a sectional structure schematic view of the sleeve type regulating valve is shown in the figure; Figure 2 The upper A is a local enlarged structure schematic view.
[0016] In the figure: 1, valve body;2, valve cover;3, valve rod;4, valve core;5, sleeve;6, sealing ring;7, O ring;8, wave spring;9, compression ring;10, thickened sheet;11, anti-abrasion coating layer. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0018] Embodiment 1: refer to Figures 1-3The utility model provides a sleeve type regulating valve with valve core wave spring, including valve body 1, the upper end of valve body 1 is connected with valve cover 2, is equipped with valve stem 3 on valve cover 2 and penetrates, the upper end of valve stem 3 is fixedly connected with rotary disc, is installed with sleeve 5 in valve body 1, the bottom end of valve stem 3 is connected with valve core 4, and valve core 4 is located in sleeve 5, and the upper end of valve core 4 is in contact with the inside bottom end of sleeve 5, and the upper end of valve core 4 is sleeved with sealing ring 6, and the outside of sealing ring 6 is in contact with sleeve 5, and O ring 7 is connected on the inner ring wall of sealing ring 6, and O ring 7 is corrosion-resistant rubber ring, and O ring 7 is in contact with the outer wall of valve core 4, and the upper end of sealing ring 6 is equipped with wave spring 8, and the upper end outside of valve core 4 is screw connected with compression ring 9, and compression ring 9 extrudes wave spring 8.
[0019] Working process:
[0020] Compression ring 9 and valve core 4 are assembled through thread, and compression ring 9 forms the initial compression of wave spring 8, so that the sealing surface of sealing ring 6 contacts sleeve 5 first when the valve is closed, and the sealing surface of valve core 4 contacts sleeve 5, and the spring force of wave spring 8 is used to effectively seal the upper sealing, and under the double action of the axial force of valve stem 3 and the spring force of wave spring 8, the upper and lower sealing can be effectively sealed when the valve is closed, and the high-standard leakage level requirement of valve core 4 is met.
[0021] Embodiment 2: refer to Figure 2 As another preferred embodiment of the utility model, the difference from embodiment 1 is that the inside bottom end of valve body 1 is connected with thickening sheet 10, the upper end of thickening sheet 10 is sprayed with anti-abrasion coating layer 11, anti-abrasion coating layer 11 is ceramic coating layer, thickening sheet 10 thickens the inside bottom end of valve body 1, and anti-abrasion coating layer 11 protects thickening sheet 10 from abrasion, so as to slow down the abrasion speed of the inner wall of valve body 1.
[0022] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and the utility model concept of the utility model, equivalent replacement or change, should be covered in the protection scope of the utility model.
Claims
1. A sleeve type regulating valve with a wave spring for a valve core, characterized by, The utility model relates to a valve, including valve body (1), wherein: The upper end of valve body (1) is connected with valve cover (2), the valve rod (3) is equipped with in valve cover (2) through, the sleeve (5) is installed in valve body (1), the bottom end of valve rod (3) is connected with valve core (4), valve core (4) is located in sleeve (5), the upper end of valve core (4) is in contact with the inside bottom end of sleeve (5), the upper end of valve core (4) is sleeved with sealing ring (6), the outside of sealing ring (6) is in contact with sleeve (5), the inner ring wall of sealing ring (6) is connected with O ring (7), O ring (7) is in contact with the outer wall of valve core (4), the upper end of sealing ring (6) is equipped with wave spring (8), the upper end outside of valve core (4) is connected with compression ring (9) with screw thread, compression ring (9) extrudes wave spring (8).
2. The sleeve valve with wave spring trim according to claim 1, wherein, The upper end of the valve rod (3) is fixedly connected with a rotating disc.
3. The sleeve valve with wave spring according to claim 1, characterized in that, The O-ring (7) is a corrosion-resistant rubber ring.
4. The sleeve valve with wave spring according to claim 1, wherein The inside bottom end of the valve body (1) is connected with a thickened sheet (10), and the upper end of the thickened sheet (10) is sprayed with an anti-abrasion coating layer (11).
5. The sleeve valve with wave spring trim according to claim 4, wherein, The anti-abrasion coating layer (11) is a ceramic coating layer.