CN216799838U - Deoxidation closed reaction device - Google Patents
Deoxidation closed reaction device Download PDFInfo
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- CN216799838U CN216799838U CN202220401440.8U CN202220401440U CN216799838U CN 216799838 U CN216799838 U CN 216799838U CN 202220401440 U CN202220401440 U CN 202220401440U CN 216799838 U CN216799838 U CN 216799838U
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Abstract
The utility model provides a deoxidation closed reaction device, includes the reation kettle body, oxygen detection device, the reation kettle body is equipped with the heat transfer and presss from both sides the cover, is provided with agitating unit in the reation kettle body, the top of the reation kettle body is provided with air inlet, gas outlet, the air inlet links to each other with the nitrogen gas source through first pipeline, sets up first valve on this first pipeline, the gas outlet passes through the second pipeline and links to each other with oxygen detection device, sets up first gas buffer tank, second valve on this second pipeline, and the second valve is located the upper reaches of first gas buffer tank. The utility model has simple structure and convenient operation, can provide a deoxidation closed environment for synthesizing a target product, and has the advantage of low use cost.
Description
Technical Field
The utility model relates to the field of chemical industry, in particular to a deoxidation closed reaction device.
Background
In the chemical field, the synthesis process of various target products requires that raw materials are subjected to temperature control in a deoxygenated closed reaction device to realize the expected reaction process. The conventional deoxygenation reaction device, such as patent No. CN201721032869.x, is not provided with a stirring device, such as patent No. CN201520356785.6, uses a stirrer as a stirring device, and when a copolymerization reaction, for example, is performed, the viscosity of a target product obtained by the reaction gradually increases, which results in that none of the above reaction devices can sufficiently and uniformly mix reactants, further reducing the reaction efficiency, and reducing the yield of the reaction product. In addition, for example, patent CN201921030381.2, etc. has no oxygen-containing analysis system, and the time required for more reaction processes is generally 8 hours or more, and a long time of introducing shielding gas is required, which results in higher synthesis cost.
Therefore, how to design a deoxygenation closed reaction device with high reaction efficiency and low synthesis cost is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a deoxygenation closed reaction device which is simple in structure and convenient to operate, can provide a deoxygenation closed environment for synthesizing a target product and has the advantage of low use cost.
The technical scheme of the utility model is as follows: the utility model provides a deoxidation closed reaction device, includes the reation kettle body, oxygen detection device, the reation kettle body is equipped with the heat transfer and presss from both sides the cover, is provided with agitating unit in the reation kettle body, the top of the reation kettle body is provided with air inlet, gas outlet, the air inlet links to each other with the nitrogen gas source through first pipeline, sets up first valve on this first pipeline, the gas outlet passes through the second pipeline and links to each other with oxygen detection device, sets up first gas buffer tank, second valve on this second pipeline, and the second valve is located the upper reaches of first gas buffer tank.
The heat exchange medium used by the heat exchange jacket is heating oil.
The reaction kettle body is provided with a temperature detector.
And a flowmeter is arranged on the first pipeline.
Still include the second gas buffer tank, the second gas buffer tank sets up on first pipeline, is located the upstream of first valve.
And the bottoms of the first gas buffer tank and the second gas buffer tank are both provided with a flow guide valve.
Adopt above-mentioned technical scheme to have following beneficial effect:
1. the deoxidation closed reaction device comprises a reaction kettle body and an oxygen detection device, wherein the reaction kettle body is used for providing a reaction space, and the oxygen detection device is used for detecting the oxygen content in the airflow. The reaction kettle body is provided with a heat exchange jacket and used for heating the reaction kettle body, providing heat required by reaction and meeting the reaction requirement. Be provided with agitating unit in the reation kettle body for stir the mixing material, prevent that the reactant can not fully the homogeneous mixing reduction of reaction efficiency who leads to. And the top of the reaction kettle body is provided with an air inlet and an air outlet. The gas inlet is connected with a nitrogen source through a first pipeline, a first valve is arranged on the first pipeline, namely, nitrogen can be provided for the inner space of the reaction kettle body through the first pipeline by opening the first valve, so that a protective atmosphere is formed, and the requirement of a deoxidation environment for reaction is met. The air outlet is connected with the oxygen detection device through a second pipeline, a first gas buffer tank and a second valve are arranged on the second pipeline, the second valve is positioned at the upstream of the first gas buffer tank, namely, the nitrogen of the nitrogen source fully replaces the air (containing oxygen) in the reaction kettle body by opening the second valve, and the oxygen content in the nitrogen gas is detected by the oxygen gas detection device, and the nitrogen gas is stopped to be supplied (the nitrogen gas source is closed) after the oxygen content is zero, so that the using amount of the nitrogen gas can be effectively reduced, further reducing the reaction cost, in addition, the arranged first gas buffer tank can not only block the air from flowing back to the reaction kettle body to form a deoxidation environment, but also form a gas buffer system, the expanded gas part in the closed system enters the gas buffer system when the reaction of the materials in the reaction kettle body releases heat, so that the influence of high pressure on the reaction of the materials in the reaction kettle body is effectively reduced.
2. Still include the gaseous buffer tank of second, set up on the gaseous buffer tank of second on first pipeline, be located the upper reaches of first valve, with the cooperation of first gaseous buffer tank, form gaseous buffer system. The bottom of first gaseous buffer tank, second gaseous buffer tank all is equipped with leads the shower valve, and usually, expanding gas carries a small amount of vapor phase and gets into gaseous buffer tank, through the speed reduction cooling back, and these vapor phases condense to the liquid phase, and the accessible leads the shower valve and discharges.
The following further description is made with reference to the accompanying drawings and detailed description.
Drawings
FIG. 1 is a schematic diagram of the connection of the present invention.
In the attached drawing, 1 is the reaction kettle body, 2 is the oxygen detection device, 3 is the heat transfer jacket, 4 is agitating unit, 5 is the air inlet, 6 is the gas outlet, 7 is first pipeline, 8 is the nitrogen gas source, 9 is first valve, 10 is the second pipeline, 11 is first gas buffer tank, 12 is the second valve, 13 is the thermodetector, 14 is the flowmeter, 15 is the guide shower valve.
Detailed Description
In the utility model, the equipment or the component which is not marked with a specific structure or model is generally conventional equipment or component in the chemical field, and the equipment or the component which is not marked with a specific connection mode is generally a conventional connection mode in the chemical field or a connection mode suggested by a manufacturer.
Referring to fig. 1, a specific embodiment of the deoxygenation closed reaction device is shown. The deoxidation closed reaction device comprises a reaction kettle body 1 and an oxygen detection device 2. The reaction kettle body 1 is provided with a heat exchange jacket 3, and a heat exchange medium used is heating oil generally. The reaction kettle body 1 is provided with a stirring device 4. The reaction kettle body 1 is provided with an air inlet 5 and an air outlet 6 at the top, and in addition, the reaction kettle body 1 is also provided with a temperature detector 13, obviously, the reaction kettle body is also provided with a feed inlet, a discharge outlet and necessary supporting devices (not shown in the figure). The gas inlet 5 is connected with a nitrogen source 8 through a first pipeline 7, a first valve 9 is arranged on the first pipeline 7, the nitrogen source in the embodiment generally directly adopts a nitrogen bottle, and in order to meet actual requirements, the nitrogen source further comprises a second gas buffer tank, the second gas buffer tank is arranged on the first pipeline and is positioned at the upstream of the first valve, and in order to measure the nitrogen flow, a flow meter 14 is further arranged on the first pipeline 7, and a rotameter is generally adopted. The gas outlet 6 is connected with the oxygen detection device 2 through a second pipeline 10, a first gas buffer tank 11 and a second valve 12 are arranged on the second pipeline 10, and the second valve 12 is located at the upstream of the first gas buffer tank 11. Usually, the bottoms of the first gas buffer tank 11 and the second gas buffer tank are both provided with a pilot valve 15.
The working principle of the utility model is as follows: after the materials are put into the reaction kettle body, the corresponding valve is closed. Opening first valve, second valve, providing nitrogen gas through first pipeline to the interior sky of the reation kettle body, replacing air (oxygen) wherein, forming protective atmosphere, satisfying the required deoxidation environment of reaction, and the air of replacement passes through oxygen detection device through the second pipeline, and after oxygen content is zero, stop providing nitrogen gas (the nitrogen cylinder is closed), the first gas buffer tank that sets up can block the air and flow back to the reation kettle body, makes the reation kettle body form the deoxidation environment. The temperature can be raised for reaction. In the reaction process of the materials in the reaction kettle body, when heat is released, the expanded gas in the closed system enters the gas buffer system (the first gas buffer tank and the second gas buffer tank), and the influence of high pressure on the reaction of the materials in the reaction kettle body is effectively reduced.
Claims (6)
1. A deoxidation closed reaction device is characterized in that: comprises a reaction kettle body (1) and an oxygen detection device (2),
the reaction kettle body (1) is provided with a heat exchange jacket (3), a stirring device (4) is arranged in the reaction kettle body (1),
the top of the reaction kettle body (1) is provided with an air inlet (5) and an air outlet (6), the air inlet (5) is connected with a nitrogen source (8) through a first pipeline (7), a first valve (9) is arranged on the first pipeline (7), the air outlet (6) is connected with an oxygen detection device (2) through a second pipeline (10), a first gas buffer tank (11) and a second valve (12) are arranged on the second pipeline (10), and the second valve (12) is located at the upstream of the first gas buffer tank (11).
2. The deoxygenated closed reaction device of claim 1, wherein: the heat exchange medium used by the heat exchange jacket (3) is heating oil.
3. The deoxygenated closed reaction device of claim 1, wherein: the reaction kettle body (1) is provided with a temperature detector (13).
4. The deoxygenated closed reaction device of claim 1, wherein: a flowmeter (14) is arranged on the first pipeline (7).
5. The deoxygenated closed reaction device of claim 1, wherein: the gas-liquid separator further comprises a second gas buffer tank, wherein the second gas buffer tank is arranged on the first pipeline (7) and is positioned at the upstream of the first valve (9).
6. The deoxygenated closed reaction device of claim 5, wherein: the bottoms of the first gas buffer tank (11) and the second gas buffer tank are both provided with a flow guide valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401440.8U CN216799838U (en) | 2022-02-25 | 2022-02-25 | Deoxidation closed reaction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401440.8U CN216799838U (en) | 2022-02-25 | 2022-02-25 | Deoxidation closed reaction device |
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| Publication Number | Publication Date |
|---|---|
| CN216799838U true CN216799838U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220401440.8U Active CN216799838U (en) | 2022-02-25 | 2022-02-25 | Deoxidation closed reaction device |
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| CN (1) | CN216799838U (en) |
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- 2022-02-25 CN CN202220401440.8U patent/CN216799838U/en active Active
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