Corrosion-resistant emptying valve

Abstract

The utility model provides a corrosion-resistant emptying valve which comprises a pneumatic actuator, a supporting seat and a valve body, the supporting seat is arranged at the top of the pneumatic actuator, the valve body is arranged at the top of the supporting seat, a feeding section is arranged at the top of the valve body, a mounting seat is arranged at a port of the top of the feeding section, and a valve seat is mounted at the top of the mounting seat. A feeding port is formed in the top end of the valve seat, a metal elastic piece passes through the edge side of the bottom end of the valve seat, the bottom end of the metal elastic piece is connected with an anti-corrosion inner cover, and the anti-corrosion inner cover is attached to the inner wall face of the feeding section; the feeding section at the top of the valve body is improved, the detachable valve seat is installed at the top of the installation seat, the bottom of the valve seat is connected with the anti-corrosion inner cover through the metal elastic piece, the anti-corrosion inner cover can be tightly attached to the inner wall face of the feeding section in a pressing mode, then the feeding section can be protected, and the probability that the feeding section is damaged in the feeding process is lowered. And the feeding section is subjected to abrasion and material corrosion.

Description

Technical Field

[0001] This utility model belongs to the field of discharge valve technology and relates to a corrosion-resistant discharge valve. Background Technology

[0002] The top-mounted discharge valve is one type of discharge valve. This type of discharge valve is widely used in chemical, petroleum, metallurgical, pharmaceutical, pesticide, dye, and food processing industries. Common top-mounted discharge valves consist of three main parts: valve body, valve stem, and valve disc. The valve body includes a feed section at the bottom and a discharge section extending radially outward from the feed section. A flange is provided at the bottom end of the feed section. The valve stem is threaded onto the valve body and forms a screw-nut mechanism with the valve body. The valve disc includes a cover and a protrusion protruding upward from the upper side of the cover. The valve disc is mounted on the valve stem through its protrusion and can rotate on the valve stem. When the valve stem rotates, the valve stem drives the valve disc to cooperate with the valve body, and the valve body's feed port is closed or opened through the cover of the valve cover.

[0003] Traditional discharge valve structures have fixed valve seats that mate with the valve core, making them inconvenient to maintain. Furthermore, the feed section lacks any anti-corrosion features, leading to easy corrosion and wear on its inner walls over extended periods of use. Summary of the Invention

[0004] The purpose of this invention is to provide a corrosion-resistant discharge valve to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solution: A corrosion-resistant discharge valve includes a pneumatic actuator, a support base, and a valve body. The pneumatic actuator is provided with a support base on its top, and the support base is provided with a valve body on its top. A feed section is provided at the top of the valve body, and a mounting base is provided at the top port of the feed section. A valve seat is mounted on the top of the mounting base, and a feed port is provided at the top of the valve seat. A metal spring is connected to the bottom side of the valve seat, and an anti-corrosion inner cover is connected to the bottom of the metal spring. The anti-corrosion inner cover is attached to the inner wall of the feed section.

[0006] In the aforementioned corrosion-resistant discharge valve, a side notch is provided on the side of the mounting base, and a locking screw is provided at the top of the mounting base. The top of the locking screw passes through the valve seat and is threadedly connected to the locking nut at the top of the valve seat.

[0007] In the aforementioned corrosion-resistant discharge valve, the output end of the pneumatic actuator is connected to a push rod, and the top end of the push rod passes through a support seat and connects to a valve stem inside the valve body.

[0008] In the aforementioned corrosion-resistant discharge valve, side support rods are provided on both sides of the top of the valve stem, and one end of the side support rod is pressed against the side of the corrosion-resistant inner cover.

[0009] In the aforementioned corrosion-resistant discharge valve, a plug is connected to the top of the valve stem, a valve core is installed on the top of the plug, a slot is provided at the bottom of the valve core, and the plug is inserted into the slot.

[0010] In the aforementioned corrosion-resistant discharge valve, a discharge section communicating with the feed section is provided on one side of the bottom of the valve body, and flanges are provided on the outer side of the feed section and the outer side of the discharge section.

[0011] Compared with the prior art, the advantages of the corrosion-resistant discharge valve of this utility model are as follows:

[0012] 1. This application improves the feed section at the top of the valve body. A detachable valve seat is installed on the top of the mounting base. A corrosion-resistant inner cover is connected to the bottom of the valve seat through a metal spring. The corrosion-resistant inner cover can fit and press tightly against the inner wall of the feed section, thereby protecting the feed section and reducing wear and material corrosion during the feeding process.

[0013] 2. In this application, the valve core and the anti-corrosion inner cover are integrated. When the valve core and the anti-corrosion inner cover are replaced, they can be disassembled at the same time. This makes it convenient to replace and maintain the valve core and the anti-corrosion inner cover. When discharging, the valve stem pushes the valve core up to expose the feed port, thereby completing the feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a corrosion-resistant discharge valve according to this utility model.

[0015] Figure 2 This is an enlarged structural diagram of the top of the feed section of a corrosion-resistant discharge valve according to this utility model.

[0016] Figure 3 This is a schematic diagram of the valve seat structure of a corrosion-resistant discharge valve according to this utility model.

[0017] Figure 4 This is a schematic diagram of the mounting base structure of a corrosion-resistant discharge valve according to this utility model.

[0018] In the diagram, 1. Pneumatic actuator; 2. Support base; 3. Valve body; 4. Feed section; 5. Discharge section; 6. Flange; 7. Corrosion-resistant inner cover; 8. Push rod; 9. Side support rod; 10. Valve stem; 11. Mounting base; 12. Valve seat; 13. Plug; 14. Valve core; 15. Metal spring; 16. Side notch; 17. Feed port; 18. Locking screw. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] A corrosion-resistant discharge valve includes a pneumatic actuator 1, a support base 2, and a valve body 3. The support base 2 is provided on the top of the pneumatic actuator 1, and the valve body 3 is provided on the top of the support base 2. A feed section 4 is provided on the top of the valve body 3. A mounting base 11 is provided at the top port of the feed section 4. A valve seat 12 is mounted on the top of the mounting base 11. A feed port 17 is provided at the top of the valve seat 12. A metal spring 15 is connected to the bottom side of the valve seat 12. A corrosion-resistant inner cover 7 is connected to the bottom of the metal spring 15. The corrosion-resistant inner cover 7 is attached to the inner wall of the feed section 4.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a corrosion-resistant discharge valve. Specifically, a side notch 16 is provided on the side of the mounting base 11, and a locking screw 18 is provided at the top of the mounting base 11. The top of the locking screw 18 passes through the valve seat 12 and is threadedly connected to the locking nut at the top of the valve seat 12. When the valve seat 12 is installed, it is fixed to the top of the mounting base 11 by the cooperation of the locking screw 18 and the locking nut.

[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a corrosion-resistant discharge valve. Specifically, the output end of the pneumatic actuator 1 is connected to a push rod 8. The top end of the push rod 8 passes through the support seat 2 and is connected to the valve stem 10 inside the valve body 3. The pneumatic actuator 1 in this application is a power source and is a well-known device that can be directly purchased from the market. Here, we are only using it and have not made any structural or functional improvements to it. We will not go into details here.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a corrosion-resistant discharge valve. Specifically, the valve stem 10 has side support rods 9 on both sides of its top. One end of the side support rod 9 is pressed against the side of the anti-corrosion inner cover 7. The side support rod 9 mainly provides pressure and support for the anti-corrosion inner cover 7. The inner diameter and thickness of the side support rod 9 are small, so it will not affect the normal discharge.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model discloses a corrosion-resistant discharge valve. Specifically, a plug 13 is connected to the top of the valve stem 10, and a valve core 14 is installed on the top of the plug 13. A slot is opened at the bottom of the valve core 14, and the plug 13 is inserted into the slot. When installing the valve core 14, the plug 13 at the top of the valve stem 10 is inserted into the slot, and then it is locked by screws on the side.

[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses a corrosion-resistant discharge valve. Specifically, a discharge section 5 communicating with a feed section 4 is provided on one side of the bottom of the valve body 3. Flanges 6 are provided on the outer sides of the feed section 4 and the discharge section 5. During installation, the feed section 4 and the discharge section 5 are connected through the flanges 6.

[0026] This utility model discloses a corrosion-resistant discharge valve. In use, the bottom of the feed section 4 is installed at the bottom outlet of the tank via a flange 6. Under normal conditions, the valve core 14 is pressed against the feed port 17 inside the valve seat 12, sealing the feed port 17 and preventing discharge. When discharge is required, the valve stem 10 at the top of the pneumatic actuator 1 pushes the valve core 14 upward, causing the valve core 14 to move away from the feed port 17, exposing the feed port 17. Material then enters the feed section 4 through the feed port 17 and is discharged through the outlet. Section 5 discharges, and the valve seat 12 on the top of the mounting base 11 is designed to be detachable. The bottom of the valve seat 12 is connected to the anti-corrosion inner cover 7 through the metal spring 15. The anti-corrosion inner cover 7 can fit and press tightly against the inner wall of the feeding section 4, thereby protecting the feeding section 4 and reducing the wear and corrosion of the feeding section 4 during the feeding process. The valve core 14 and the anti-corrosion inner cover 7 are set as an integral part. When the valve core 14 is replaced, the valve core 14 and the anti-corrosion inner cover 7 can be removed at the same time, which makes it convenient to replace and maintain the valve core 14 and the anti-corrosion inner cover 7.

[0027] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A corrosion-resistant discharge valve, comprising a pneumatic actuator (1), a support base (2), and a valve body (3), characterized in that, The pneumatic actuator (1) is provided with a support base (2) on top, and a valve body (3) is provided on top of the support base (2). A feeding section (4) is provided on top of the valve body (3). A mounting base (11) is provided at the top port of the feeding section (4). A valve seat (12) is installed on top of the mounting base (11). A feeding port (17) is provided at the top of the valve seat (12). A metal spring (15) is connected to the bottom side of the valve seat (12). An anti-corrosion inner cover (7) is connected to the bottom of the metal spring (15). The anti-corrosion inner cover (7) is attached to the inner wall of the feeding section (4).

2. The corrosion-resistant discharge valve according to claim 1, characterized in that, The mounting base (11) has a side notch (16) on its side and a locking screw (18) on its top. The top of the locking screw (18) passes through the valve seat (12) and is threadedly connected to the locking nut on the top of the valve seat (12).

3. The corrosion-resistant discharge valve according to claim 1, characterized in that, The output end of the pneumatic actuator (1) is connected to a push rod (8), and the top end of the push rod (8) passes through the support seat (2) and is connected to the valve stem (10) inside the valve body (3).

4. The corrosion-resistant discharge valve according to claim 3, characterized in that, Side support rods (9) are provided on both sides of the top of the valve stem (10), and one end of the side support rod (9) is pressed against the side of the anti-corrosion inner cover (7).

5. A corrosion-resistant discharge valve according to claim 4, characterized in that, The top of the valve stem (10) is connected to a plug (13), the top of the plug (13) is fitted with a valve core (14), the bottom of the valve core (14) is provided with a slot, and the plug (13) is inserted into the slot.

6. The corrosion-resistant discharge valve according to claim 1, characterized in that, The bottom side of the valve body (3) is provided with a discharge section (5) that communicates with the feed section (4), and flanges (6) are provided on the outer side of the feed section (4) and the outer side of the discharge section (5).

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