An improved micro-positive pressure reactor and a method for using the inspection sampling port thereof

Abstract

The invention relates to an improved micro-positive pressure reactor and a method for using the inspection sampling port thereof, comprising: a reaction tank body, a stirring device, a protective gas communicating vessel and an inspection sampling port; the inspection sampling port comprises: a flange cover, a pipe flange, a sealing gasket, an upper liquid seal groove ring plate, an upper liquid seal groove barrel section, an inspection pipe, a connecting pipe, a cover plate and a cover plate barrel section; the inspection sampling port is installed to facilitate sampling of materials in the tank; a top cover is covered to form an upper liquid seal; the lower end of the inspection pipe is inserted below the liquid level in the tank body to form a lower liquid seal; the upper and lower liquid seals are combined to cut off the communication between the outside air and the inside of the inspection pipe, thereby minimizing the contact between the tank body slurry and the outside air, and avoiding the leakage of the protective gas in the tank body used for blocking the air.

Description

Technical Field

[0001] The invention relates to a chemical slurry reaction device, in particular to an improved micro-positive pressure reactor and a method for using an inspection sampling port thereof. Background Art

[0002] In the prior art, in chemical production, the slurry in some atmospheric pressure reaction tanks (or reactors) cannot contact the air to prevent oxidation. These reaction tanks are equipped with sealed tank covers (or heads). Generally, nitrogen or other inert gases are introduced into the upper space of the tank to maintain a slightly positive pressure state for protection. The pressure is generally 0~1000mm water column. During the operation of the reaction tank, it is sometimes necessary to sample and inspect the material in the tank. This requires the installation of a device that can minimize the contact between the tank material and the external air while sampling the material in the tank, and avoid the leakage of the protective gas used to isolate the air in the tank. Summary of the invention

[0003] The purpose of the present invention is to provide an improved micro-positive pressure reactor and a method for using the inspection sampling port thereof, which has solved the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an improved micro-positive pressure reactor, comprising: a reaction tank body, a stirring device, a protective gas communication vessel and an inspection sampling port; wherein the inspection sampling port comprises: a flange cover, a pipe flange, a sealing gasket, an upper liquid seal groove ring plate, an upper liquid seal groove barrel section, an inspection pipe, a connecting pipe, a cover plate and a cover plate barrel section; wherein the connecting pipe is welded at the top opening edge of the reaction tank body, wherein the pipe flange and the connecting pipe are welded to form an installation port; wherein the flange cover, the upper liquid seal groove ring plate, the upper liquid seal groove barrel section and the upper end of the inspection ... The second welding forms a sealing liquid tank; wherein the installation port and the sealing liquid tank are tightly connected by bolts through a flange cover, a sealing gasket and a pipe flange; wherein the cover plate and the cover plate tube section are welded to form a top cover; wherein the lower end of the inspection tube extends below the liquid level of the reaction slurry to form a lower liquid seal to prevent the leakage of the protective gas in the tank body used to block the air. The length of the inspection tube depends on the setting of the pressure of the protective gas. The pressure of the highest liquid column formed in the inspection tube is greater than or equal to the pressure of the protective gas. The preferred pressure of the protective gas is 0~1000mm water column.

[0005] The sealing liquid tank contains sealing liquid, and the top cover is covered to form an upper liquid seal. Preferably, the water seal can cut off the external air from communicating with the air in the inspection tube after adding the sealing liquid, thereby minimizing the contact between the tank body slurry and the external air.

[0006] The inspection sampling port is made of corrosion-resistant material, preferably corrosion-resistant metal material such as stainless steel, carbon steel or corrosion-resistant non-metal material such as plastic.

[0007] The inspection tube has a size of 50-500 mm and a shape of round or square.

[0008] An improved micro-positive pressure reactor and a method for using the inspection sampling port thereof include the following steps:

[0009] S1. When working, add sealing liquid into the sealing liquid groove on the upper part of the inspection sampling port, and cover the top cover to form an upper liquid seal;

[0010] S2. When inspection and sampling are required, lift the top cover and observe downward from the inside of the inspection tube. Use a vessel to insert into the tank through the lower end of the inspection tube to take samples. The lower end of the inspection tube is inserted below the reaction slurry in the tank and has a certain height above the liquid level to form a lower liquid seal.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] Installing the inspection sampling port can facilitate sampling of the material in the tank. At the same time, the top cover is closed to form an upper liquid seal, and the lower end of the inspection tube is inserted below the liquid level in the tank to form a lower liquid seal. The combination of the upper and lower liquid seals cuts off the connection between the outside air and the inside of the inspection tube, thereby minimizing the contact between the tank slurry and the atmosphere, and avoiding the leakage of the protective gas in the tank used to block the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 An overall structural diagram of an improved micro-positive pressure reactor and a method for using the inspection sampling port thereof;

[0014] Figure 2 An improved micro-positive pressure reactor and a method for using the inspection sampling port thereof; an enlarged view of the inspection sampling port structure;

[0015] Explanation of the reference numerals: 1-reaction tank body; 2-stirring device; 3-protective gas communicating vessel; 4-inspection sampling port; 5-flange cover; 6-pipe flange; 7-sealing gasket; 8-upper liquid seal groove ring plate; 9-upper liquid seal groove barrel section; 10-inspection pipe; 11-cover plate; 12-cover plate barrel section; 13-connecting pipe; 14-installation port; 15-sealing liquid tank; 16-reaction slurry; 17-top cover. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] according to Figure 1 and Figure 2As shown, the present invention provides the following technical solutions: an improved micro-positive pressure reactor, comprising: a reaction tank body 1, a stirring device 2, a protective gas communication vessel 3 and an inspection sampling port 4; wherein the inspection sampling port 4 comprises: a flange cover 5, a pipe flange 6, a sealing gasket 7, an upper liquid seal groove ring plate 8, an upper liquid seal groove barrel section 9, an inspection pipe 10, a connecting pipe 13, a cover plate 11 and a cover plate barrel section 12; wherein the pipe flange 6 and the connecting pipe 13 are welded to form a mounting port 14; wherein the flange cover 5, the upper liquid seal groove ring plate 8, the upper liquid seal groove barrel section 9 and the upper end of the inspection pipe 10 are welded in sequence to form a sealing liquid groove 15; wherein the mounting port 14 and the sealing liquid tank 15 are tightly connected by bolts through the flange cover 5, the sealing gasket 7 and the pipe flange 6; wherein the cover plate 11 and the cover plate cylinder section 12 are welded to form a top cover; wherein the lower end of the inspection tube 10 extends below the liquid level of the reaction slurry 16 to form a lower liquid seal to prevent the leakage of the protective gas in the tank body used to block the air. The length of the inspection tube 10 depends on the setting of the pressure of the protective gas. The pressure of the highest liquid column formed in the inspection tube is greater than or equal to the pressure of the protective gas. The preferred pressure of the protective gas is 0~1000mm water column.

[0018] The sealing liquid tank 15 contains sealing liquid, and the top cover 17 is covered to form an upper liquid seal, preferably a water seal. After the sealing liquid is added, the upper and lower liquid seals are combined to isolate the external air from communicating with the air in the inspection tube 10, thereby minimizing the contact between the tank slurry and the external air.

[0019] The inspection tube 10 has a size of 50-500 mm and a round or square shape.

[0020] Working principle:

[0021] When working, add sealing liquid to the sealing tank at the top of the inspection port, cover the top cover to form a liquid seal, thus cutting off the connection between the atmosphere and the inside of the inspection tube. When inspection and sampling are required, lift the top cover, observe downward from the inside of the inspection tube, and use a vessel to extend into the tank through the lower end of the inspection tube to take samples. Since the lower end of the inspection tube extends below the liquid level of the reaction slurry in the tank, and it has a certain height above the liquid level, under the pressure of the air on the tank and the protective gas inside, a liquid column will be formed in the inspection tube. This liquid column is the liquid seal that cuts off the leakage of the protective gas in the tank. The depth of the lower end of the inspection tube extending into the liquid depends on the control range of the liquid level of the reaction slurry in the tank. The lower end of the inspection tube must be kept below the liquid level, otherwise the liquid seal will be broken, the protective gas will leak out, and cause pollution.

[0022] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the appended claims and their equivalents.

Claims

1. An improved micro-positive pressure reactor, comprising: A reaction tank body (1), a stirring device (2), a protective gas communicating vessel (3), and an inspection sampling port (4); wherein the inspection sampling port (4) comprises: a flange cover (5), a pipe flange (6), a sealing gasket (7), an upper liquid seal groove ring plate (8), an upper liquid seal groove barrel section (9), an inspection pipe (10), a connecting pipe (13), a cover plate (11), and a cover plate barrel section (12); wherein the connecting pipe (13) is welded to the top opening edge of the reaction tank body (1), wherein the pipe flange (6) and the connecting pipe (13) are welded to form an installation The installation opening (14) is a liquid sealing groove (15); wherein the flange cover (5), the upper liquid sealing groove ring plate (8), the upper liquid sealing groove barrel section (9) and the upper end of the inspection tube (10) are welded in sequence to form a liquid sealing groove (15); wherein the installation opening (14) and the liquid sealing groove (15) are tightly connected by bolts through the flange cover (5), the sealing gasket (7) and the pipe flange (6); wherein the cover plate (11) and the cover plate barrel section (12) are welded to form a top cover (17); wherein the lower end of the inspection tube (10) extends below the liquid level of the reaction slurry (16) to form a lower liquid seal.

2. The improved micro-positive pressure reactor according to claim 1, characterized in that: The sealing liquid groove (15) contains sealing liquid, and is covered with a top cover (17) to form an upper liquid seal.

3. The improved micro-positive pressure reactor according to claim 1, characterized in that: Check that the sampling port (4) is made of corrosion-resistant material.

4. The improved micro-positive pressure reactor according to claim 1, characterized in that: The inspection tube (10) has a size of 50 to 500 mm and a round or square shape.

5. A method for using the improved micro-positive pressure reactor inspection sampling port according to any one of claims 1 to 4, characterized in that: Using the above-mentioned micro-positive pressure reactor, the method for using the micro-positive pressure reactor inspection sampling port includes the following steps: S1, during operation, a sealing liquid is added into the sealing liquid groove (15) at the upper part of the inspection sampling port (4), and the top cover (17) is covered to form an upper liquid seal; S2. When it is necessary to inspect and take samples, lift up the top cover (17) and observe downward from the inside of the inspection tube (10). Use a vessel to insert into the tank through the lower end of the inspection tube (10) to take samples. The lower end of the inspection tube (10) is inserted below the reaction slurry (16) in the tank and has a certain height above the liquid level, forming a lower liquid seal.

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