A bottom valve valve bubble back flushing device

Abstract

The utility model discloses a bottom valve bubble back flushing device, including the reation kettle body and the upper valve, the upper valve fixed mounting is at the bottom of reation kettle body, the valve rod on the upper valve is provided as hollow screw pipe, the bottom of hollow screw pipe is linked with the gas pipe, the one end of gas pipe is linked with gas source and communicates away from hollow screw pipe, the upper end of hollow screw pipe is communicated with the jet pipe after penetrating the valve core in the upper valve, is provided with a plurality of air holes on the jet pipe, the utility model discloses the valve rod in the design cooperation jet pipe and gas pipe of replacing hollow screw pipe in the current upper valve, this combination can directly inject gas from the bottom of reation kettle body to its inside, effectively solved the problem that reactant material deposits, accumulation in the bottom of reation kettle body, simultaneously, through the blowing effect of gas, accelerate the full mixing of reactant material to the reaction efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a bottom valve bubbling and backflushing device. Background Technology

[0002] In a broad sense, a reaction vessel is a container where physical or chemical reactions occur. Through structural design and parameter configuration, it achieves the heating, evaporation, cooling, and low-to-high-speed mixing functions required by the process. Reaction vessels are widely used in petroleum, chemical, rubber, pesticide, dye, pharmaceutical, and food industries as pressure vessels to complete processes such as vulcanization, nitration, hydrogenation, hydrocarbonation, polymerization, and condensation. Examples include reactors, reaction vessels, decomposers, and polymerization kettles.

[0003] For example, the Chinese utility model patent with announcement number CN219150126U discloses a stirred reactor. The technical background states that "the fluid inside the reactor forms a circulating flow under the action of the stirring blades, causing the reactants to mix and generate products. However, due to the limited space inside the reactor, the flow of fluid inside the reactor will form vortices. In particular, dead zones are easily formed at the bottom of the reactor. If the stirring is insufficient here, reaction products, such as particles, are easily accumulated here, which will affect the quality of the product."

[0004] As documented in the aforementioned publicly available literature, in the operation of existing reactors, the material at the bottom of the reactor often tends to agglomerate and accumulate due to gravity. This not only reduces reaction efficiency but may also lead to problems such as localized overheating and uneven reaction. Furthermore, for certain oxygen-sensitive chemical reactions, residual oxygen inside the reactor may trigger side reactions, affecting product quality.

[0005] To address this, a bottom valve bubbling backflush device is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a bottom valve bubbling backflush device, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A bottom valve bubbling backflushing device includes an upper valve, which is fixedly installed at the bottom of the reactor body. The valve stem of the upper valve is a hollow threaded tube. The bottom of the hollow threaded tube is connected to a gas supply pipe. The end of the gas supply pipe away from the hollow threaded tube is connected to a gas source. The upper end of the hollow threaded tube passes through the valve core in the upper valve and is connected to a jet pipe. The jet pipe has several air holes.

[0009] In a bottom valve bubbling backflush device according to the present invention, a one-way valve is fixedly installed inside the upper end of the hollow threaded tube, and the air outlet of the one-way valve is connected to the air inlet of the jet pipe.

[0010] In a bottom valve bubbling backflush device according to the present invention, a sealing ring is provided between the upper outer wall of the one-way valve and the valve core, and the sealing ring is fixedly sleeved on the one-way valve.

[0011] In a bottom valve bubbling backflush device according to the present invention, the jet pipe is arranged in a vortex pattern.

[0012] In a bottom valve bubbling backflushing device according to the present invention, a rotary joint is fixedly connected to the lower end of the hollow threaded tube, and the end of the rotary joint away from the hollow threaded tube is connected to the gas supply pipe.

[0013] According to the present invention, a bottom valve bubbling backflush device is provided, wherein a valve is fixedly installed on the air supply pipe.

[0014] This utility model has at least the following beneficial effects:

[0015] This invention replaces the valve stem in the existing upper valve with a hollow threaded tube, combined with a jet pipe and a gas delivery pipe. This combination allows gas to be directly injected from the bottom of the reactor body into its interior. This design effectively solves the problem of sedimentation and accumulation of reactants at the bottom of the reactor body. At the same time, the gas blowing effect accelerates the full mixing of reactants, thereby significantly improving reaction efficiency. Moreover, this series of improvements does not require any modification to the original structure of the reactor body.

[0016] By introducing inert gas into the reactor body, oxygen inside the reactor body can be expelled, thereby protecting the reaction system inside the reactor body. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the bottom valve bubbling backflush device of this utility model;

[0019] Figure 2 This is a partial cross-sectional structural diagram of the bottom valve bubbling backflush device of this utility model;

[0020] Figure 3This is a schematic diagram of the structure of the upper valve of this utility model.

[0021] Explanation of icon numbers:

[0022] 1. Reactor body; 2. Top valve; 201. Hollow threaded pipe; 202. Valve core; 3. Gas supply pipe; 301. Gas jet pipe; 3011. Gas hole; 302. Check valve; 3021. Sealing ring; 303. Rotary joint; 304. Valve. Detailed Implementation

[0023] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] Please refer to Figures 1 to 3 As shown, this embodiment provides a bottom valve bubbling backflushing device, including a reactor body 1 and an upper valve 2. The upper valve 2 is fixedly installed at the bottom of the reactor body 1. The valve stem of the upper valve 2 is a hollow threaded tube 201. The bottom of the hollow threaded tube 201 is connected to a gas supply pipe 3. The end of the gas supply pipe 3 away from the hollow threaded tube 201 is connected to a gas source. In this embodiment, the gas source can be filtered air or inert gas. A valve 304 is fixedly installed on the gas supply pipe 3. The upper end of the hollow threaded tube 201 passes through the valve core 202 in the upper valve 2 and is connected to a jet pipe 301. The jet pipe 301 has several air holes 3011. The upper end of the reactor body 1 is connected to an exhaust port, and an exhaust valve is provided at the exhaust port.

[0025] In this embodiment, a one-way valve 302 is fixedly installed inside the upper end of the hollow threaded tube 201. The outlet of the one-way valve 302 is connected to the inlet of the jet pipe 301. This setting can effectively prevent the liquid inside the reactor body 1 from flowing to the outside.

[0026] To further improve the sealing performance at the connection between the check valve 302 and the valve core 202, a sealing ring 3021 is provided between the upper outer wall of the check valve 302 and the valve core 202, and the sealing ring 3021 is fixedly sleeved on the check valve 302.

[0027] In this embodiment, the jet pipe 301 is arranged in a vortex shape, which can make the gas entering and exiting the reactor body 1 more evenly distributed.

[0028] A rotary joint 303 is fixedly connected to the lower end of the hollow threaded tube 201. The end of the rotary joint 303 away from the hollow threaded tube 201 is connected to the gas supply pipe 3. By using the rotary joint 303, the gas supply pipe 3 will not rotate with the valve core 202 when the valve core 202 is rotated.

[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0030] Working principle: When in use, open valve 304 and exhaust valve. The gas in the gas source passes through the gas supply pipe 3, hollow threaded pipe 201, one-way valve 302 and jet pipe 301, and is then sprayed into the interior of the reactor body 1 from the bottom of the gas port 3011. This blows away the reaction material accumulated at the bottom of the reactor body 1, preventing the reaction material from accumulating at the bottom of the reactor body 1. After the reaction is completed, open the upper expansion valve 2 to discharge the material inside the reactor body 1.

[0031] When performing some oxygen-sensitive chemical reactions, nitrogen can be used as the gas source. Nitrogen is introduced into the reactor body 1 to expel the oxygen inside the reactor body 1 and ensure product quality.

[0032] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A bottom valve bubbling backflush device, characterized in that, The reactor includes an upper valve (2), which is fixedly installed at the bottom of the reactor body (1). The valve stem of the upper valve (2) is a hollow threaded tube (201). The bottom of the hollow threaded tube (201) is connected to a gas supply pipe (3). The end of the gas supply pipe (3) away from the hollow threaded tube (201) is connected to a gas source. The upper end of the hollow threaded tube (201) passes through the valve core (202) in the upper valve (2) and is connected to a jet pipe (301). The jet pipe (301) has several air holes (3011). A one-way valve (302) is fixedly installed inside the upper end of the hollow threaded tube (201). The outlet of the one-way valve (302) is connected to the inlet of the jet pipe (301). A sealing ring (3021) is provided between the upper outer wall of the one-way valve (302) and the valve core (202). The sealing ring (3021) is fixedly sleeved on the one-way valve (302).

2. The bottom valve bubbling backflush device according to claim 1, characterized in that: The jet pipe (301) is arranged in a vortex pattern.

3. The bottom valve bubbling backflush device according to claim 1, characterized in that: The lower end of the hollow threaded tube (201) is fixedly connected to a rotary joint (303), and the end of the rotary joint (303) away from the hollow threaded tube (201) is connected to the gas transmission pipe (3).

4. The bottom valve bubbling backflush device according to claim 3, characterized in that: A valve (304) is fixedly installed on the gas pipeline (3).

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