Electrically operated anti-wear discharge valve

Abstract

The utility model provides a kind of electric type wear-resistant slag discharge valve, it is related to industrial valve technical field, solve the short service life of existing product wear resistance, poor high-temperature sealing and impurity impact wear problem.The key structure includes: tee streamline valve body, hollow cooling valve core, magnetic coupling electric actuator, stepped wear-resistant sealing assembly and detachable impurity pre-filter unit.Through the collaborative design of "pre-filtering - active wear resistance - intelligent cooling", excellent wear-resistant leak-proof function is realized, suitable for metallurgy, mine and other high-impurity high-temperature fluid pipeline system.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, specifically relating to an electric anti-wear slag discharge valve. Background Technology

[0002] Existing slag discharge valves still have the following unresolved technical challenges under high-impurity conditions:

[0003] The wear-resistant layer is prone to peeling off: the single ceramic coating has poor adhesion to the substrate and is prone to cracking under long-term impact;

[0004] High-temperature seal failure: Traditional rubber seals are prone to aging at temperatures above 150°C, while metal hard seals may become stuck due to thermal expansion.

[0005] Impurities directly impact the valve core: Large particles of impurities directly impact the valve core sealing surface, accelerating localized wear;

[0006] Risk of leakage in transmission components: The mechanical seal between the electric actuator and the valve body is prone to leakage under high pressure, which can contaminate the internal components of the actuator.

[0007] Therefore, it is urgent to solve the problem of synergistic optimization of wear resistance, sealing and impurity pretreatment through structural innovation in order to address the existing technical pain points of slag discharge valves. Utility Model Content

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An electric anti-wear slag discharge valve includes a valve body, a valve core, an integrated electric actuator, an anti-wear sealing assembly, and an impurity pre-filtration unit.

[0010] The valve body has a three-way streamlined structure, with the liquid inlet and slag outlet forming a 150° angle, and the inner wall is coated with a gradient composite anti-wear layer.

[0011] The valve core is a hollow cylindrical structure with a cone angle. The outer surface is covered with a nano-tungsten carbide-cobalt alloy coating. The interior is provided with a spiral cooling channel, and the two ends of the channel are connected to the external coolant circulation system through rotary joints.

[0012] The integrated electric actuator includes a servo motor with torque feedback and a gear reducer;

[0013] The impurity pre-filtration unit is detachably installed inside the liquid inlet and includes a stainless steel grid and an elastic buffer pad.

[0014] Preferably, the wear-resistant sealing assembly includes a stepped valve seat and an embedded copper C-ring, with hard alloy overlay welded onto the surface of the valve seat, and the C-ring having a compression of 20%.

[0015] Preferably, the valve core has a built-in temperature sensor that automatically starts the coolant circulation system when the detected temperature is ≥150℃.

[0016] Preferably, the impurity pre-filtration unit has a grid aperture of 5mm, is connected to the valve body via a quick-release buckle, and has a polytetrafluoroethylene anti-stick coating sprayed on its surface.

[0017] Preferably, the cemented carbide is Stellite alloy.

[0018] The beneficial effects of this utility model are:

[0019] The valve body adopts a gradient structure of nickel-based alloy transition layer + alumina ceramic layer, which solves the problem of easy peeling of single ceramic coating, effectively improves the bonding strength of the coating, and is not easy to peel off during long-term use.

[0020] It adopts a stepped valve seat + embedded copper C-ring structure, and achieves basic sealing through metal hard sealing. The elastic C-ring compensates for thermal expansion gaps, which solves the problems of traditional rubber seal failure above 150℃ and metal seal easy jamming.

[0021] The valve core has a built-in spiral cooling channel and temperature sensor. When the detected temperature is ≥150℃, the coolant circulation is automatically started to achieve dynamic cooling and ensure that the valve core maintains structural stability in high-temperature media. 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 through these drawings without creative effort.

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

[0024] Figure 2 This is a schematic diagram of the valve core structure;

[0025] Figure 3 This is a schematic diagram of a stainless steel grating structure.

[0026] Figure 4 This is a schematic diagram of the valve seat structure.

[0027] In the diagram: 1 - Valve body; 2 - Valve core; 3 - Servo motor; 4 - Gear reducer; 5 - Stepped valve seat; 6 - Copper C-ring; 7 - Nano-tungsten carbide-cobalt alloy coating; 8 - Spiral cooling channel; 9 - Stainless steel grille; 10 - Elastic buffer pad; 11 - Liquid inlet; 12 - Slag outlet. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] like Figure 1-4 An electric anti-wear slag discharge valve includes a valve body 1, a valve core 2, an integrated electric actuator, an anti-wear sealing assembly, and an impurity pre-filtration unit.

[0031] The valve body 1 has a three-way streamlined structure. The liquid inlet 11 and the slag outlet 12 form a 150° angle. The inner wall is sprayed with a gradient composite anti-wear layer. The composite anti-wear layer consists of a nickel-based alloy transition layer and an alumina ceramic layer. An alloy transition layer is added outside the ceramic layer to ensure the bonding strength between the ceramic layer and the valve body 1, so that it is not easy to fall off during long-term use and scouring.

[0032] The valve core 2 is a hollow cylindrical structure with a cone angle. Its outer surface is covered with a nano-tungsten carbide-cobalt alloy coating 7. It has a spiral cooling channel 8 inside, and the two ends of the channel are connected to the external coolant circulation system through rotary joints.

[0033] The integrated electric actuator includes a servo motor 3 with torque feedback and a gear reducer 4;

[0034] The wear-resistant sealing assembly consists of a stepped valve seat 5 and an embedded copper C-ring 6. The surface of the valve seat is overlaid with Stellite alloy, and the compression of the copper C-ring 6 is 20%. The use of a metal hard seal to replace the traditional rubber sealing ring makes the sealing effect less affected by temperature and can maintain a good sealing effect even at high temperatures.

[0035] The impurity pre-filtration unit is detachably installed inside the liquid inlet 11. It includes a stainless steel grid 9 and an elastic buffer pad 10. The stainless steel grid 9 has a pore size of 5mm and is connected to the valve body 1 by a quick-opening buckle. The surface of the grid is coated with a polytetrafluoroethylene (PTFE) anti-stick coating to pre-filter the slag-containing material before it passes through, reducing the slag discharge pressure in the later stage. The PTFE coating improves the corrosion resistance of the grid and also has a certain lubricating effect, making it easy to clean the grid.

[0036] The valve core 2 has a built-in temperature sensor. When the detected temperature is ≥150℃, the coolant circulation system is automatically started to ensure that the temperature of the valve core 2 does not get too high and to ensure structural stability during long-term use.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. An electrically operated anti-wear slag discharge valve, characterized in that: Includes valve body, valve core, integrated electric actuator, wear-resistant sealing components, and impurity pre-filtration unit; The valve body has a three-way streamlined structure, with the liquid inlet and slag outlet forming a 150° angle, and the inner wall is coated with a gradient composite anti-wear layer. The valve core is a hollow cylindrical structure with a cone angle. The outer surface is covered with a nano-tungsten carbide-cobalt alloy coating. The interior is provided with a spiral cooling channel, and the two ends of the channel are connected to the external coolant circulation system through rotary joints. The integrated electric actuator includes a servo motor with torque feedback and a gear reducer; The impurity pre-filtration unit is detachably installed inside the liquid inlet and includes a stainless steel grid and an elastic buffer pad.

2. The electrically operated anti-wear slag discharge valve according to claim 1, characterized in that, The wear-resistant sealing assembly includes a stepped valve seat and an embedded copper C-ring. The valve seat surface is overlaid with hard alloy, and the C-ring has a compression of 20%.

3. The electrically operated anti-wear slag discharge valve according to claim 1, characterized in that, The valve core has a built-in temperature sensor, which automatically starts the coolant circulation system when the detected temperature is ≥150℃.

4. The electrically operated anti-wear slag discharge valve according to claim 1, characterized in that, The impurity pre-filtration unit has a 5mm pore size and is connected to the valve body via a quick-release buckle. The surface of the pores is coated with a polytetrafluoroethylene anti-stick coating.

5. An electrically operated anti-wear slag discharge valve according to claim 2, characterized in that, The cemented carbide is Stellite alloy.

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