Thermal insulation upward expansion valve for jacket of reaction kettle

Abstract

The utility model belongs to the field of valves, and particularly relates to a reaction kettle jacket heat preservation upward expansion valve which comprises a valve body, the lower portion of the valve body is a vertical section, and the upper portion of the valve body is an inclined section. An end cover is arranged below the valve body, and a valve seat is clamped between the valve body and the end cover; a valve rod penetrates through the center of an opening of the valve body, the bottom of the valve rod is connected with a valve element for blocking the opening, and the upper portion of the valve rod is connected to an executing mechanism. The heating mechanism comprises a heat preservation jacket arranged on the outer wall of the valve body in a sleeving mode, and a steam inlet end base is installed on the inclined section of the valve body. The steam inlet end seat is arranged on the inclined section of the valve body, the steam outlet end seat is arranged on the vertical section, and the steam inlet end seat and the steam outlet end seat are distributed diagonally, so that steam enters from the steam inlet end seat and then enters the steam outlet end seat along a channel of the valve body to heat the inner wall of the channel of the valve body. The conveyed medium is prevented from crystallizing on the inner wall of the valve body, and smooth medium conveying is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically to a reaction vessel jacket insulation upper expansion valve. Background Technology

[0002] Top-discharge valves are mainly used for bottom discharge in reactors, storage tanks, and other containers. They are welded to the bottom of the tank or other container via a bottom flange, thus eliminating the residue of process media that usually remains at the container outlet. The bottom of the top-discharge valve is equipped with an actuator that pushes and pulls the valve stem up and down to discharge and close the valve. They are widely used in industries such as chemical, petroleum, metallurgy, pharmaceutical, pesticide, dye, and food processing.

[0003] When the upward expansion valve is used for material discharge, the crystallized medium passing through it will stick to the inner wall of the valve channel. Over time, this accumulation will cause blockage of the upward expansion valve channel, preventing normal medium transmission. Furthermore, the residual medium will affect the accuracy of other reactions in the subsequent reactor, which is a drawback. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] To address the technical problems existing in the background art, this utility model proposes a reaction vessel jacket insulation upper expansion valve, which has the characteristics of heating mechanism assisting in the heating of the valve channel and preventing the transmission medium from remaining in the valve channel.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, this utility model provides a reaction vessel jacket insulation upper expansion valve, including a valve body, wherein the lower part of the valve body is a vertical section and the upper part is an inclined section;

[0008] An end cap is provided below the valve body, and a valve seat is held between the valve body and the end cap;

[0009] A valve stem passes through the center of the opening of the valve body, and a valve core that blocks the opening is connected to the bottom of the valve stem, while the upper part is connected to the actuator.

[0010] The heating mechanism includes an insulation jacket fitted on the outer wall of the valve body, a steam inlet end seat installed on the inclined section of the valve body, and a steam outlet end seat installed on the vertical section of the valve body. The steam inlet end seat and the steam outlet end seat are combined to form a steam transmission channel.

[0011] Preferably, a rubber gasket is sandwiched in the gap between the valve seat and the valve body.

[0012] Preferably, the vertical section of the valve body is used for feeding, and the inclined section of the valve body is used for discharging.

[0013] Preferably, the valve stem and the valve core are fixed together by a fastening nut, and the valve core presses down to open the valve channel.

[0014] Preferably, the sealing mechanism includes a packing pad sleeved on the outer periphery of the valve stem, a pressure plate disposed above the packing pad, and a packing assembly filling the space between the packing pad and the pressure plate.

[0015] Preferably, the actuator includes a column sleeved on the outside of the valve stem, a cylinder is disposed above the column, and the output end of the cylinder is connected to the valve stem.

[0016] The above-mentioned technical solution of this utility model has the following beneficial technical effects: the steam inlet end seat is set in the inclined section of the valve body, and the steam outlet end seat is set in the vertical section. The two are diagonally distributed, which forces the steam to enter from the steam inlet end seat and then move along the channel of the valve body to the steam outlet end seat, heating the inner wall of the channel of the valve body. During the transmission process, it ensures that the valve body is heated evenly as a whole, prevents the transmitted medium from forming crystals on the inner wall of the valve body, and ensures the smooth transmission of the medium. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the valve body structure of this utility model.

[0020] Figure label:

[0021] 1. Valve body; 2. End cover; 3. Valve seat; 4. Gasket; 5. Valve stem; 6. Valve core; 7. Fastening nut; 8. Packing gasket; 9. Packing assembly; 10. Pressure plate; 11. Column; 12. Cylinder; 13. Insulation jacket; 14. Steam inlet end seat; 15. Steam outlet end seat. Detailed Implementation

[0022] 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 specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] like Figure 1-3 As shown, the present invention proposes a reaction vessel jacket insulation upper expansion valve, which includes a valve body 1, the lower part of the valve body 1 being a vertical section and the upper part being an inclined section;

[0024] An end cap 2 is provided below the valve body 1, and a valve seat 3 is held between the valve body 1 and the end cap 2;

[0025] A valve stem 5 passes through the center of the opening of the valve body 1. The bottom of the valve stem 5 is connected to a valve core 6 that blocks the opening, and the upper part is connected to the actuator.

[0026] The heating mechanism includes an insulation jacket 13 fitted on the outer wall of the valve body 1, a steam inlet end seat 14 installed on the inclined section of the valve body 1, and a steam outlet end seat 15 installed on the vertical section of the valve body 1. The steam inlet end seat 14 and the steam outlet end seat 15 are combined to form a steam transmission channel.

[0027] It should be noted that the insulation jacket 13 covers the outer wall of the valve body 1 to form a sealed chamber, which insulates the inner cavity of the valve body 1.

[0028] In this embodiment, the steam inlet end seat 14 is located in the inclined section of the valve body 1, and the steam outlet end seat 15 is located in the vertical section. The two are diagonally distributed, which forces the steam to enter from the steam inlet end seat 14 and then flow along the channel of the valve body 1 to the steam outlet end seat 15, heating the inner wall of the channel of the valve body 1. During the transmission process, it is ensured that the valve body 1 is heated evenly as a whole, preventing the transmitted medium from forming crystals on the inner wall of the valve body 1, and ensuring the smooth transmission of the medium.

[0029] In order to seal the gap between valve seat 3 and valve body 1, a rubber gasket 4 is further inserted into the gap between valve seat 3 and valve body 1.

[0030] It is understandable that the vertical section of valve body 1 is used for feeding, the inclined section of valve body 1 is used for discharging, the medium transmission direction of valve body 1 is from bottom to top, and the inclined corner from bottom to top can prevent the medium from adhering to the inner wall of the corner of valve body 1.

[0031] To further improve the installation stability of valve core 6, valve stem 5 and valve core 6 are fixed together by fastening nut 7. When valve core 6 is pressed down, valve channel is opened, medium enters from vertical section and flows out along inclined section; at the same time, steam enters the inner cavity of valve body 1 from inlet end seat 14 to continuously heat valve body 1 and prevent medium from solidifying.

[0032] To further improve the sealing stability at the moving position of the valve stem 5, the sealing mechanism includes a packing pad 8 sleeved on the outer periphery of the valve stem 5, a pressure plate 10 is provided above the packing pad 8, and a packing assembly 9 is filled between the packing pad 8 and the pressure plate 10.

[0033] As an example of an actuator: The actuator includes a column 11 sleeved on the outside of the valve stem 5. A cylinder 12 is arranged above the column 11. The output end of the cylinder 12 is connected to the valve stem 5. The cylinder 12 drives the piston rod at the output end to extend and reset, thereby moving the valve stem 5 and controlling the valve core 6 connected to the end of the valve stem 5 to open and close the channel.

[0034] Alternatively, the actuator can be a hydraulic mechanism, gear mechanism, handwheel mechanism, etc., with the purpose of controlling the valve stem 5 to make a vertical linear displacement.

[0035] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A reactor jacket insulation up-and-over valve characterized by, Includes a valve body (1), the lower part of which is a vertical section and the upper part is an inclined section; An end cap (2) is provided below the valve body (1), and a valve seat (3) is held between the valve body (1) and the end cap (2); A valve stem (5) passes through the center of the opening of the valve body (1), and a valve core (6) that blocks the opening is connected to the bottom of the valve stem (5), and the upper part is connected to the actuator. The heating mechanism includes an insulation jacket (13) sleeved on the outer wall of the valve body (1), a steam inlet end seat (14) installed on the inclined section of the valve body (1), and a steam outlet end seat (15) installed on the vertical section of the valve body (1). The steam inlet end seat (14) and the steam outlet end seat (15) are combined to form a steam transmission channel.

2. The valve according to claim 1, wherein A rubber pad (4) is held in the gap between the valve seat (3) and the valve body (1).

3. The valve according to claim 1, wherein The vertical section of the valve body (1) is used for feeding, and the inclined section of the valve body (1) is used for discharging.

4. The valve according to claim 1, wherein, The valve stem (5) and the valve core (6) are fixed together by a fastening nut (7), and the valve core (6) presses down to open the valve channel.

5. The valve according to claim 1, wherein, The sealing mechanism includes a packing pad (8) sleeved on the outer periphery of the valve stem (5), a pressure plate (10) is provided above the packing pad (8), and a packing assembly (9) is filled between the packing pad (8) and the pressure plate (10).

6. The valve according to claim 1, wherein, The actuator includes a column (11) sleeved on the outside of the valve stem (5), and a cylinder (12) is provided above the column (11). The output end of the cylinder (12) is connected to the valve stem (5).

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