Feed and discharge valves for enamel-lined reactors

Abstract

This utility model relates to a feed and discharge valve for an enamel-lined reactor, comprising a valve seat, a valve stem, a valve body, and a sealing element. The sealing element is clamped between the valve seat and the valve body. The valve stem is inserted into the valve body from outside the valve body. A valve core is provided at the upper end of the valve stem, and the valve core has a sealing surface that abuts against the sealing element. A valve stem connecting seat is provided at the lower end of the valve body, and the lower end of the valve stem extends into the valve stem connecting seat. The valve stem connecting seat has an oblong hole. The valve stem has a feed channel and a first feed pipe communicating with the feed channel. The upper end of the feed channel extends to the top of the valve core. The first feed pipe extends through the oblong hole to the outside of the valve stem connecting seat. A glass protective cover is fixedly provided on the outside of the valve stem connecting seat to cover the oblong hole. A second feed pipe is provided on the glass protective cover, and a flexible hose is provided inside the glass protective cover. The first feed pipe and the second feed pipe are connected through the flexible hose. This utility model reduces the cost of modifying and using an enamel-lined reactor and reduces the risk of material leakage.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to the feed and discharge valve for enamel-lined reactors. Background Technology

[0002] Enameled reactors are composite material products made by lining the inner surface of a steel container with glass containing high silica content, and then firing it at high temperature to firmly adhere it to the metal surface.

[0003] When two corrosive or toxic materials need to be added to an enamel-lined reactor for reaction, the materials need to be added through two feeding channels. However, an enamel-lined reactor generally only has one feeding port. Adding another feeding port to the existing enamel-lined reactor can easily damage the anti-corrosion layer on the inner wall of the reactor, making it extremely difficult to add a feeding port. Summary of the Invention

[0004] The purpose of this invention is to provide a feed and discharge valve for an enamel-lined reactor that can be used for feeding materials.

[0005] The technical solution to achieve the purpose of this utility model is as follows:

[0006] A feed and discharge valve for an enamel-lined reactor includes a valve seat, a valve stem, a valve body, and a sealing element disposed between the valve seat and the valve body. The sealing element is clamped between the valve seat and the valve body. The valve stem is inserted into the valve body from outside the valve body. A valve core is provided at the upper end of the valve stem. The valve core has a sealing surface that abuts against the sealing element. A valve stem connecting seat is provided at the lower end of the valve body. The lower end of the valve stem extends into the valve stem connecting seat. The valve stem connecting seat has an oblong hole. The valve stem has a feed channel and a first feed pipe communicating with the feed channel. The upper end of the feed channel extends to the top of the valve core. The first feed pipe extends through the oblong hole to the outside of the valve stem connecting seat. A glass protective cover is fixedly disposed on the outside of the valve stem connecting seat, covering the oblong hole. A second feed pipe is disposed on the glass protective cover. A flexible hose is disposed inside the glass protective cover. The first feed pipe and the second feed pipe are connected by the flexible hose.

[0007] With the above structure, when feeding materials into the enamel-lined reactor, the second material enters the reactor through the second feed pipe, the hose, the first feed pipe, and the feed channel, avoiding the need to add a feeding port to the enamel-lined reactor and reducing the operating cost of the reactor. The hose allows the first feed pipe to move up and down with the valve stem, and the connection between the hose and the first and second feed pipes can be observed through the glass protective cover. If the hose accidentally detaches from the first and second feed pipes, feeding can be stopped and cleaned in time. This invention enables the second material to be fed into the enamel-lined reactor, reducing the modification and operating cost of the reactor, and also allows for easy observation of the connection between the hose and the first and second feed pipes, reducing the risk of material leakage.

[0008] Preferably, the hose is a stainless steel corrugated pipe.

[0009] Preferably, the hose is made of polytetrafluoroethylene.

[0010] Preferably, in order to reduce wear caused by friction between the first feed tube and the oblong hole, a protective rubber sleeve is fitted on the first feed tube. Attached Figure Description

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0013] like Figure 1 As shown, the feed and discharge valve for an enamel-lined reactor of this utility model includes a valve seat 1, a valve stem 2, a valve body 3, and a sealing element 4 disposed between the valve seat and the valve body. The sealing element is clamped between the valve seat and the valve body. The valve stem is inserted into the valve body from outside the valve body. A valve core 5 is provided at the upper end of the valve stem. The valve core is provided with a sealing surface 6 that abuts against the sealing element. A valve stem connecting seat 7 is provided at the lower end of the valve body. The lower end of the valve stem extends into the valve stem connecting seat. The valve stem connecting seat is provided with a slotted hole 8. The valve stem is provided with an inlet / outlet port. The feed channel 9 and the first feed pipe 10 connected to the feed channel are provided. The upper end of the feed channel extends to the top of the valve core. The first feed pipe extends through the waist-shaped hole to the outside of the valve stem connecting seat. A glass protective cover 11 covering the waist-shaped hole is fixedly installed on the outside of the valve stem connecting seat. A second feed pipe 12 is provided on the glass protective cover. A flexible hose 13 is provided inside the glass protective cover. The first feed pipe and the second feed pipe are connected by a flexible hose. A protective rubber sleeve 14 is fitted on the first feed pipe.

[0014] In some embodiments, the hose is a stainless steel corrugated pipe.

[0015] In some embodiments, the hose is made of polytetrafluoroethylene.

[0016] With the above structure, when feeding materials into the enamel-lined reactor, the second material enters the reactor through the second feed pipe, the hose, the first feed pipe, and the feed channel, avoiding the need to add a feeding port to the enamel-lined reactor and reducing the operating cost of the reactor. The hose allows the first feed pipe to move up and down with the valve stem, and the connection between the hose and the first and second feed pipes can be observed through the glass protective cover. If the hose accidentally detaches from the first and second feed pipes, feeding can be stopped and cleaned in time. This invention enables the second material to be fed into the enamel-lined reactor, reducing the modification and operating cost of the reactor, and also allows for easy observation of the connection between the hose and the first and second feed pipes, reducing the risk of material leakage.

[0017] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A feed and discharge valve for an enamel-lined reactor, comprising a valve seat, a valve stem, a valve body, and a sealing element disposed between the valve seat and the valve body, the sealing element being clamped by the valve seat and the valve body, the valve stem being inserted into the valve body from outside the valve body, the upper end of the valve stem being provided with a valve core, the valve core being provided with a sealing surface abutting against the sealing element, characterized in that: The lower end of the valve body is provided with a valve stem connecting seat, the lower end of the valve stem extends into the valve stem connecting seat, the valve stem connecting seat is provided with an oblong hole, the valve stem is provided with a feed channel and a first feed pipe communicating with the feed channel, the upper end of the feed channel extends to the top of the valve core, the first feed pipe passes through the oblong hole and extends to the outside of the valve stem connecting seat, a glass protective cover is fixedly provided on the outside of the valve stem connecting seat to cover the oblong hole, a second feed pipe is provided on the glass protective cover, a flexible hose is provided inside the glass protective cover, and the first feed pipe and the second feed pipe are connected by the flexible hose.

2. The feed and discharge valve for an enamel-lined reactor according to claim 1, characterized in that: The hose is a stainless steel corrugated pipe.

3. The feed and discharge valve for an enamel-lined reactor according to claim 1, characterized in that: The hose is made of polytetrafluoroethylene.

4. The feed and discharge valve for an enamel-lined reactor according to claim 1, characterized in that: The first feed pipe is fitted with a protective rubber sleeve.

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