Valve element component of high-temperature powder stop valve

Abstract

The utility model discloses a valve core component of a high-temperature powder cut-off valve, which belongs to the technical field of high-temperature powder cut-off valves and comprises a valve core, the valve core comprises a core body outer cylinder wall, and two ends of the core body outer cylinder wall are respectively communicated with a cooling medium inlet and outlet side valve rod and a cooling medium backflow side valve rod. One end of the cooling medium inlet and outlet side valve rod and one end of the cooling medium backflow side valve rod in the outer cylinder wall of the core body are communicated with a cooling medium internal supply connecting pipe and a cooling medium internal backflow connecting pipe respectively, and the valve rods can be kept at a low working temperature through circular flowing of a cooling medium. Sealing and rotating parts on the valve rod are prevented from being damaged by high temperature, the service life of quick-wear parts is prolonged, and the outer ring of the side wall of the core body is in sealing connection with the inner wall of the outer barrel wall of the core body. According to the structural design, the contact area with the inner wall of the valve is increased, a good sealing effect is achieved, powder leakage is effectively prevented, and the closing effect of the stop valve is improved.

Description

Technical Field

[0001] The utility model relates to the field of high-temperature powder cut-off valves, in particular to a valve core component of a high-temperature powder cut-off valve. Background Art

[0002] In the chemical industry, particularly lithium carbonate production, material grinding is a crucial step in the ore extraction process. This process involves conveying large quantities of material. These materials are characterized by high temperatures (reaching 800°C or above), are in powder or granular form, and are often accompanied by high-frequency vibrations to prevent adhesion. This powder conveying process inevitably requires the use of specialized shutoff valves.

[0003] At present, the powder shut-off valves on the market usually use butterfly valve plates or plug-in valve core shut-off structures, and a few use spherical valve cores. The contact size between the butterfly valve plate or plug-in valve core and the material conveying section in the valve is relatively small. Due to long-term erosion by powder and scraping during closing, this type of valve is very prone to loose closure. Although the spherical valve core has a large contact area, it is usually less resistant to high temperatures due to the limitations of the sealing material, and leakage is prone to occur at the valve stem. Therefore, the existing powder shut-off valves generally have a low operating temperature and unreliable sealing performance. How to invent a valve core component for a high-temperature powder shut-off valve to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a valve core component of a high-temperature powder cut-off valve, aiming to improve the problems of poor temperature resistance and easy leakage at the valve stem of existing powder cut-off valves.

[0005] The utility model is realized as follows: a valve core component of a high-temperature powder cut-off valve comprises

[0006] The valve core includes an outer tube wall of the core body, and the two ends of the outer tube wall of the core body are respectively connected to the cooling medium inlet and outlet side valve stem and the cooling medium return side valve stem. The cooling medium inlet and outlet side valve stem and the cooling medium return side valve stem are located inside the outer tube wall of the core body, and one end is respectively connected to the cooling medium internal supply connecting pipe and the cooling medium internal return connecting pipe.

[0007] In a preferred technical solution of the present invention, the outer portion of the core outer cylindrical wall is cylindrical, and the inner portion of the core outer cylindrical wall is hollow.

[0008] In a preferred technical solution of the present invention, both ends of the core outer cylindrical wall are respectively connected to the core side walls, and the outer ring of the core side wall is sealed to the inner wall of the core outer cylindrical wall.

[0009] In a preferred technical solution of the present utility model, a valve core through hole is provided in the middle of the outer cylindrical wall of the valve core, and the valve core through hole penetrates through the outer cylindrical wall of the valve core.

[0010] In a preferred technical solution of the present utility model, the valve stem on the cooling medium inlet and outlet side and the valve stem on the cooling medium return side are symmetrically connected to both ends of the outer cylindrical wall of the valve core, and the valve stem on the cooling medium inlet and outlet side and the valve stem on the cooling medium return side penetrate through the side wall of the valve core.

[0011] In a preferred technical solution of the present utility model, a circulating cooling medium inlet is provided at the end of the valve stem on the cooling medium inlet and outlet side, one end of the internal supply connecting pipe of the cooling medium is communicated with the circulating cooling medium inlet, and the other end of the internal supply connecting pipe of the cooling medium is communicated with the valve stem on the cooling medium return side.

[0012] In a preferred technical solution of the present utility model, a circulating cooling medium outlet is provided on one side of the valve stem on the cooling medium inlet and outlet side, one end of the internal return connecting pipe of the cooling medium is communicated with the circulating cooling medium outlet, and the other end of the internal return connecting pipe of the cooling medium is communicated with the valve stem on the cooling medium return side.

[0013] In a preferred technical solution of the present utility model, two separate and non-communicating channels are provided in the valve stem on the cooling medium inlet and outlet side, and the two channels respectively communicate the circulating cooling medium inlet and the internal supply connecting pipe of the cooling medium and the circulating cooling medium outlet and the internal return connecting pipe of the cooling medium.

[0014] In a preferred technical solution of the present utility model, two channels are provided in the valve stem on the cooling medium return side, and the channels are respectively communicated with the other ends of the internal supply connecting pipe of the cooling medium and the internal return connecting pipe of the cooling medium.

[0015] In a preferred technical solution of the present utility model, the internal supply connecting pipe of the cooling medium and the internal return connecting pipe of the cooling medium are respectively arranged in a U-shaped manner

[0016] The beneficial effects of the present utility model are as follows: The valve core component of the high-temperature powder cutting valve obtained by the above design of the present utility model has a cylindrical structure for the outer cylindrical wall of the valve core during use, and the side walls of the valve core are respectively connected to both ends thereof, and the outer circle of the side wall of the valve core is hermetically connected to the inner wall of the outer cylindrical wall of the valve core. This structural design increases the contact area with the inner wall of the valve, plays a good sealing role, effectively prevents powder leakage, and improves the closing effect of the cutting valve.

[0017] Cooling channels are located within the valve stems on the cooling medium inlet and outlet sides, as well as the cooling medium return side. A cooling medium supply connection pipe and a cooling medium return connection pipe are connected to one end of the inner wall of the core, forming a cooling medium circulation channel. This circulating flow of cooling medium maintains a low operating temperature on the valve stem, protecting the seals and rotating components from damage caused by high temperatures and extending the service life of vulnerable parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural diagram provided by an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the internal structure provided for an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the top structure provided for an embodiment of the present utility model.

[0022] In the figure: 100-valve core; 101-core outer tube wall; 102-core side wall; 103-valve core through hole; 104-cooling medium inlet and outlet side valve stem; 105-circulating cooling medium inlet; 106-cooling medium internal supply connecting pipe; 107-cooling medium internal return connecting pipe; 108-cooling medium return side valve stem; 109-circulating cooling medium outlet. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 3 The utility model provides a technical solution: a valve core component of a high-temperature powder cut-off valve, including

[0025] The valve core 100 includes an outer tube wall 101 of the core, and the two ends of the outer tube wall 101 of the core are respectively connected to the cooling medium inlet and outlet side valve stem 104 and the cooling medium return side valve stem 108. The cooling medium inlet and outlet side valve stem 104 and the cooling medium return side valve stem 108 are located inside the outer tube wall 101 of the core, and one end is respectively connected to the cooling medium internal supply connecting pipe 106 and the cooling medium internal return connecting pipe 107.

[0026] By screwing the cooling medium return side valve stem 108, the valve core 100 is rotated to cooperate with the valve core through hole 103 to adjust the valve on and off. The cooling medium return side valve stem 108 and the cooling medium inlet and outlet side valve stem 104 are provided with special installation positions for sealing components and rotating support components. The end of the cooling medium return side valve stem 108 has an interface connected to the coupling, which can be connected to the handwheel or valve drive mechanism.

[0027] The outer core wall 101 is cylindrical in shape, but hollow inside. This hollow structure provides space for cooling medium circulation and installation of other components, while also reducing the overall weight of the valve core. The outer ends of the outer core wall 101 are connected to the core side walls 102, with the outer ring of the core side walls 102 sealingly connected to the inner wall of the outer core wall 101.

[0028] A valve core through hole 103 is opened in the middle of the core outer cylinder wall 101, and the valve core through hole 103 passes through the core outer cylinder wall 101. The valve core through hole 103 is a channel for material circulation. It passes through the core outer cylinder wall 101 to ensure that the material can pass smoothly inside the valve core component, thereby realizing the material circulation function.

[0029] The cooling medium inlet and outlet side valve stem 104 and the cooling medium return side valve stem 108 are symmetrically connected at both ends of the core outer tube wall 101, and the cooling medium inlet and outlet side valve stem 104 and the cooling medium return side valve stem 108 pass through the core side wall 102. The cooling medium inlet and outlet side valve stem 104 and the cooling medium return side valve stem 108 pass through the core side wall 102. This through-type design enables the valve stem to better support the valve core components and provides a smoother channel for the circulation of the cooling medium.

[0030] A circulating cooling medium inlet 105 is provided at the end of the cooling medium inlet and outlet side valve stem 104, one end of the cooling medium internal supply connecting pipe 106 is connected to the circulating cooling medium inlet 105, and the other end of the cooling medium internal supply connecting pipe 106 is connected to the cooling medium return side valve stem 108. The circulating cooling medium inlet 105 is the entrance for the cooling medium to enter the valve stem, and the circulating cooling medium inlet 105 provides a source for the circulation of the cooling medium. The cooling medium inlet and outlet side valve stem 104 and the cooling medium return side valve stem 108 are connected so that the cooling medium can circulate between the two valve stems, thereby achieving a cooling effect on the valve stem.

[0031] On one side of the valve stem 104 on the inlet and outlet side of the cooling medium, a circulating cooling medium outlet 109 is provided. One end of the internal return connecting pipe 107 of the cooling medium is connected to the circulating cooling medium outlet 109, and the other end of the internal return connecting pipe 107 of the cooling medium is connected to the valve stem 108 on the return side of the cooling medium. The circulating cooling medium outlet 109 is the outlet through which the cooling medium flows out of the valve stem, and together with the circulating cooling medium inlet 105, it constitutes the circulating channel of the cooling medium.

[0032] There are two separate and non - communicating channels provided inside the valve stem 104 on the inlet and outlet side of the cooling medium. The two channels respectively connect the circulating cooling medium inlet 105 and the internal supply connecting pipe 106 of the cooling medium, and the circulating cooling medium outlet 109 and the internal return connecting pipe 107 of the cooling medium, which can ensure that the cooling medium flows inside the valve stem along a predetermined path, avoiding the chaotic flow and direct return of the cooling medium, thereby improving the cooling effect. There are two channels provided inside the valve stem 108 on the return side of the cooling medium, and the channels are respectively connected to the other ends of the internal supply connecting pipe 106 and the internal return connecting pipe 107 of the cooling medium. The internal supply connecting pipe 106 and the internal return connecting pipe 107 of the cooling medium are respectively arranged in a U - shape.

[0033] Working principle: Material conveying principle

[0034] When the cut - off valve is in the open state, the material passes through the valve core through - hole 103. Since the valve core through - hole 103 penetrates the outer wall 101 of the core body and has the same specification as the cut - off valve, the equal - diameter inner hole enables the material to pass through smoothly without additional resistance, realizing efficient material conveying.

[0035] Valve core rotation principle

[0036] The end of the valve stem 108 on the return side of the cooling medium can be connected to a driving device (such as a handwheel or a valve driving mechanism). When the driving device applies a torque, the valve core rotates reciprocally at a 90 - degree angle around the axis direction. When the valve core through - hole 103 is in the same direction as the feeding direction of the cut - off valve, the valve core is in the open position; when the valve core rotates to the position where the through - hole intersects with the feeding direction of the valve, the valve core is in the closed position.

[0037] Cooling principle

[0038] The circulating cooling medium enters the cooling medium inlet and outlet side valve stem 104 from the circulating cooling medium inlet 105. Two separate and non-communicating channels are provided in the cooling medium inlet and outlet side valve stem 104. The cooling medium flows to the cooling medium return side valve stem 108 through the cooling medium internal supply connecting pipe 106. Two non-communicating channels are also provided in the cooling medium return side valve stem 108. After flowing a certain distance in the cooling medium return side valve stem 108, the cooling medium returns to the cooling medium inlet and outlet side valve stem 104 through the cooling medium internal return connecting pipe 107 and flows out from the circulating cooling medium outlet 109, completing a cooling process, thereby realizing cooling protection of the valve stem.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A valve core component of a high-temperature powder cut-off valve, characterized in that: include The valve core includes an outer tube wall of the core body, and the two ends of the outer tube wall of the core body are respectively connected to the cooling medium inlet and outlet side valve stem and the cooling medium return side valve stem. The cooling medium inlet and outlet side valve stem and the cooling medium return side valve stem are located inside the outer tube wall of the core body, and one end is respectively connected to the cooling medium internal supply connecting pipe and the cooling medium internal return connecting pipe.

2. The valve core component of a high-temperature powder cut-off valve according to claim 1, characterized in that: The outer portion of the core outer cylindrical wall is cylindrical, and the inner portion of the core outer cylindrical wall is hollow.

3. The valve core component of a high-temperature powder cut-off valve according to claim 2, characterized in that: Both ends of the core outer cylinder wall are connected to the core side wall respectively, and the outer ring of the core side wall is sealed to the inner wall of the core outer cylinder wall.

4. The valve core component of a high-temperature powder cut-off valve according to claim 2, characterized in that: A valve core through hole is provided in the middle of the outer cylinder wall of the core body, and the valve core through hole passes through the outer cylinder wall of the core body.

5. The valve core component of a high-temperature powder cut-off valve according to claim 3, characterized in that: The cooling medium inlet and outlet side valve stem and the cooling medium return side valve stem are symmetrically connected to the two ends of the core outer tube wall, and the cooling medium inlet and outlet side valve stem and the cooling medium return side valve stem pass through the core side wall.

6. The valve core component of a high-temperature powder cut-off valve according to claim 5, characterized in that: A circulating cooling medium inlet is provided at the end of the cooling medium inlet and outlet side valve stem, one end of the cooling medium internal supply connecting pipe is connected to the circulating cooling medium inlet, and the other end of the cooling medium internal supply connecting pipe is connected to the cooling medium return side valve stem.

7. The valve core component of a high-temperature powder cut-off valve according to claim 6, characterized in that: A circulating cooling medium outlet is opened on one side of the valve stem on the cooling medium inlet and outlet side, one end of the cooling medium internal return connecting pipe is connected to the circulating cooling medium outlet, and the other end of the cooling medium internal return connecting pipe is connected to the cooling medium return side valve stem.

8. The valve core component of a high-temperature powder cut-off valve according to claim 7, characterized in that: Two separate and unconnected channels are provided in the valve stem on the cooling medium inlet and outlet sides, and the two channels respectively connect the circulating cooling medium inlet and the cooling medium internal supply connecting pipe and the circulating cooling medium outlet and the cooling medium internal return connecting pipe.

9. The valve core component of a high-temperature powder cut-off valve according to claim 8, characterized in that: Two channels are provided in the valve stem on the cooling medium return side, and the channels are respectively communicated with the other ends of the cooling medium internal supply connecting pipe and the cooling medium internal return connecting pipe.

10. The valve core component of a high-temperature powder cut-off valve according to claim 8, characterized in that: The cooling medium internal supply connecting pipe and the cooling medium internal return connecting pipe are respectively arranged in a U shape.

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