Regulating valve for molten salt

Abstract

The utility model discloses a kind of regulating valves for fused salt, including valve body, valve seat, gasket one, sleeve, screw rod one, valve cover, anti-fouling scraper, packing group, heating device, gasket two, valve rod, briquetting and screw rod two, the valve seat is installed in the valve body inside, gasket one is installed between the valve seat bottom end and valve body, sleeve is installed on the valve seat top, the valve cover is fixedly connected with valve body upper end by screw rod one on the valve body upper end, the valve cover bottom end is pressed on sleeve, gasket two is installed between the valve cover bottom end and valve body upper end, anti-fouling scraper is fixedly connected with the valve cover inside bottom end, packing group is installed on the valve cover inside top end, briquetting is fixedly connected with the valve cover top end by screw rod two, briquetting bottom end is pressed on packing group top, heating device is installed on the valve cover outside sleeve set. The utility model is simple and reasonable in structure, and good in use effect, low in manufacturing cost, and suitable for popularization and use.

Description

Technical Field

[0001] This utility model relates to regulating valves, specifically to a regulating valve for molten salt. Background Technology

[0002] Currently, the control valves used for molten salt have an unreasonable structure, which makes it easy for the molten salt inside to cause medium accumulation. When adjusting up and down, the valve stem is easily damaged, causing external leakage at the packing. The medium also easily accumulates at the valve seat, which makes it impossible to close the sealing surface tightly. The valve core at the bottom of the valve stem and the sealing point on the valve seat cannot achieve a seal, thus making the valve unable to close. To address this, we propose a control valve for molten salt. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a regulating valve for molten salt, which solves the problem that the current regulating valves for molten salt have unreasonable structure, which makes it easy for the molten salt inside to cause medium accumulation. When adjusting up and down, the valve stem is easily damaged, causing external leakage at the packing and medium accumulation at the valve seat. This makes it impossible to close the sealing surface tightly, and the valve core at the bottom of the valve stem cannot achieve a seal with the sealing point on the valve seat, thus causing the valve to be unable to close.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a regulating valve for molten salt, comprising a valve body, a valve seat, a gasket, a sleeve, a screw, a valve cover, an anti-scaling scraper, a packing assembly, a heating device, a second gasket, a valve stem, a pressure block, and a second screw. The valve body contains a valve seat, a gasket is installed between the bottom of the valve seat and the valve body, a sleeve is installed above the valve seat, a valve cover is fixedly connected to the upper end of the valve body via the screw, the bottom of the valve cover is pressed against the sleeve, a second gasket is installed between the bottom of the valve cover and the upper end of the valve body, an anti-scaling scraper is fixedly connected to the bottom of the valve cover, a packing assembly is installed at the top of the valve cover, a pressure block is fixedly connected to the top of the valve cover via the screw, the bottom of the pressure block is pressed against the top of the packing assembly, a heating device is sleeved on the outside of the valve cover, and a valve stem is movably installed at the center of the valve body, the top of the valve stem penetrating the valve body, the anti-scaling scraper, the valve cover, and the pressure block to the outside.

[0005] Based on the above scheme, both gasket one and gasket two are made of rubber material.

[0006] Based on the above scheme, the upper part of the valve seat is provided with a sloping opening.

[0007] Based on the above scheme, multiple through grooves are evenly opened on the outer wall of the lower end of the sleeve.

[0008] Based on the above scheme, a spiral C-shaped scraper groove is provided on the inner wall of the anti-scaling scraper, and the anti-scaling scraper is made of tungsten carbide alloy material.

[0009] Compared with the prior art, the advantages of this utility model are as follows: A regulating valve for molten salt adopts a new structure, adding a heating device to the valve cover to prevent crystallization caused by the decrease in medium temperature. An anti-scaling scraper is also added to the bottom of the valve cover to scrape off scale on the valve stem during its movement, preventing scale buildup at the valve stem and avoiding leakage caused by scale damage to the packing. The valve seat adopts a V-shaped anti-accumulation bevel design, which effectively prevents medium accumulation in the gaps, ensuring normal valve core opening and closing adjustment, and protecting the sealing surface from being scratched by hard media. This utility model has a simple and reasonable structure, good performance, low manufacturing cost, and strong practicality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a regulating valve for molten salt according to the present invention; Figure 2 This is a schematic diagram of the valve seat structure of a regulating valve for molten salt according to the present invention; Figure 3 This is a schematic diagram of the sleeve structure of a regulating valve for molten salt according to the present invention; Figure 4 This is a schematic diagram of the anti-scaling scraper structure of a regulating valve for molten salt according to this utility model.

[0011] The numbers in the diagram are: 1-valve body, 2-valve seat, 201-bevel, 3-gasket one, 4-sleeve, 401-through groove, 5-screw one, 6-valve cover, 7-anti-scaling scraper, 701-spiral C-shaped scraper groove, 8-packing assembly, 9-heating device, 10-gasket two, 11-valve stem, 12-pressure block, 13-screw two. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0013] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0014] Reference Figures 1 to 4It is known that a regulating valve for molten salt includes a valve body 1, a valve seat 2, a gasket 3, a sleeve 4, a screw 5, a valve cover 6, an anti-scaling scraper 7, a packing assembly 8, a heating device 9, a second gasket 10, a valve stem 11, a pressure block 12, and a second screw 13. The valve seat 2 is installed inside the valve body 1. A gasket 3 is installed between the bottom end of the valve seat 2 and the valve body 1. A sleeve 4 is installed above the valve seat 2. The valve cover 6 is fixedly connected to the upper end of the valve body 1 via the screw 5. The bottom end of the valve cover 6 is pressed against the sleeve 4. A second gasket 10 is installed between the bottom end of the valve cover 6 and the upper end of the valve body 1. An anti-scaling scraper is fixedly connected to the bottom end inside the valve cover 6. 7. The anti-scaling scraper 7 can scrape off the crystals on the outer wall of the valve stem 11. The top of the valve cover 6 is equipped with a packing assembly 8. The top of the valve cover 6 is fixedly connected to a pressure block 12 by a screw 13. The bottom of the pressure block 12 is pressed against the top of the packing assembly 8. A heating device 9 is sleeved on the outside of the valve cover 6. The heating device 9 is an existing mature technology product used to heat the valve cover 6. The valve stem 11 is movably installed in the center of the valve body 1. The top of the valve stem 11 passes through the valve body 1, the anti-scaling scraper 7, the valve cover 6 and the pressure block 12 to the outside. The valve stem 11 can move up and down inside the valve body 1, the anti-scaling scraper 7, the valve cover 6 and the pressure block 12.

[0015] Both gasket 3 and gasket 10 are made of rubber, which has excellent sealing properties. The upper part of the valve seat 2 is provided with a bevel 201, which can prevent the medium from crystallizing and thus affecting the valve's seal. Multiple through grooves 401 are evenly opened on the lower outer wall of the sleeve 4, which facilitates the passage of the medium inside the valve. The inner wall of the anti-scaling scraper 7 is provided with a spiral C-shaped scraper groove 701, which can scrape off the medium on the outer wall of the valve stem 11, avoiding the problem of crystallization on the valve stem. The anti-scaling scraper 7 is made of tungsten carbide alloy, which has high strength, can quickly scrape off the crystals on the valve stem 11, and is also durable.

[0016] The principle and advantages of this utility model: A regulating valve for molten salt adopts a new structure. A heating device 9 is added to the valve cover 6 to heat the valve cover 6 and prevent crystallization caused by the decrease in medium temperature. An anti-scaling scraper 7 is also added to the bottom of the valve cover 6. The anti-scaling scraper 7 is made of tungsten carbide alloy material, and its inner hole has a spiral C-shaped scraper groove 701. When the valve stem 11 moves up and down, it scrapes off the scale on the valve stem 11, preventing the medium from scaling at the valve stem 11 and damaging the packing assembly 8, thus avoiding the problem of leakage caused by scale damage to the packing assembly 8. The valve seat 2 adopts a V-shaped anti-accumulation inclined opening 201 design, which can effectively prevent the medium from accumulating in the gaps, ensure the normal opening and closing adjustment of the valve core at the bottom of the valve stem 11, and protect the sealing surface from being scratched by hard medium. This utility model has a simple and reasonable structure, good performance, and low manufacturing cost, and is suitable for widespread use.

[0017] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A regulating valve for molten salt, comprising a valve body (1), a valve seat (2), a first gasket (3), a sleeve (4), a first screw (5), a valve cover (6), an anti-scaling scraper (7), a packing assembly (8), a heating device (9), a second gasket (10), a valve stem (11), a pressure block (12), and a second screw (13), characterized in that: A valve seat (2) is installed inside the valve body (1). A gasket (3) is installed between the bottom end of the valve seat (2) and the valve body (1). A sleeve (4) is installed above the valve seat (2). A valve cover (6) is fixedly connected to the upper end of the valve body (1) by a screw (5). The bottom end of the valve cover (6) is pressed against the sleeve (4). A gasket (10) is installed between the bottom end of the valve cover (6) and the upper end of the valve body (1). An anti-scaling scraper is fixedly connected to the bottom end of the valve cover (6). 7) A packing assembly (8) is installed at the top of the valve cover (6). A pressure block (12) is fixedly connected to the top of the valve cover (6) by a screw (13). The bottom end of the pressure block (12) is pressed against the top of the packing assembly (8). A heating device (9) is installed on the outside of the valve cover (6). A valve stem (11) is movably installed in the center of the valve body (1). The top of the valve stem (11) passes through the valve body (1), the anti-scaling scraper (7), the valve cover (6), and the pressure block (12) to the outside.

2. The regulating valve for molten salt according to claim 1, characterized in that, Both gasket one (3) and gasket two (10) are made of rubber material.

3. A regulating valve for molten salt according to claim 1, characterized in that, The valve seat (2) has a sloping opening (201) at the upper end of its interior.

4. A regulating valve for molten salt according to claim 1, characterized in that, Multiple through grooves (401) are evenly provided on the outer wall of the lower end of the sleeve (4).

5. A regulating valve for molten salt according to claim 1, characterized in that, The anti-scaling scraper (7) has a spiral C-shaped scraper groove (701) on its inner wall, and the anti-scaling scraper (7) is made of tungsten carbide alloy material.

Images