CN208742532U - A kind of protection gas shielded reaction unit - Google Patents
A kind of protection gas shielded reaction unit Download PDFInfo
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- CN208742532U CN208742532U CN201821305501.0U CN201821305501U CN208742532U CN 208742532 U CN208742532 U CN 208742532U CN 201821305501 U CN201821305501 U CN 201821305501U CN 208742532 U CN208742532 U CN 208742532U
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- reaction
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- gas
- kettle
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Abstract
The utility model discloses a kind of protection gas shielded reaction units, including reaction kettle, blender, feed opening, discharging pipeline, air inlet pipe, escape pipe, it is connected its main feature is that air inlet pipe is mounted on to cover above on reaction kettle and be mounted on the gas distribution tube in reaction kettle by flange, from air inlet, into kettle, airintake direction is sequentially arranged with shut-off valve in air inlet pipe, pressure reducing valve, gas flowmeter, needle-valve, pressure gauge, check (non-return) valve, escape pipe is mounted on the top of reaction unit, the utility model, which has, to be made before chemical reaction and the air displacement of reaction process is more thorough, securely and reliably, the characteristics of reaching anhydrous and oxygen-free and completely cutting off the reaction condition of air.
Description
Technical field
The utility model belongs to chemical industry and prohibits water, prohibits oxygen, isolation air reaction kettle equipment technical field, more particularly, to one kind
Protect gas shielded reaction unit.
Background technique
It is passed through protection gas (inert gas) before starting the reaction in fine chemistry industry production and carrys out displaced air, reaches
Anhydrous and oxygen-free and the reaction condition for completely cutting off air, anhydrous and oxygen-free are required in reaction process and completely cuts off the reaction of air also need anti-
Inert gas is passed through during answering, to maintain anhydrous and oxygen-free and completely cut off the reaction condition of air, at present in Fine Chemical
Inert gas replacement used in middle reaction kettle and protective device can generally be used inert gas tube from the top cover of reaction kettle with straight
Form of tubes is passed through the bottom of reaction kettle, the mode of top discharge, but has blender in reaction kettle, and tends not to lead to bottom,
And gas is unevenly distributed.Another form be protection gas is passed through from bottom valve, though this kind of form gas is passed through from bottom, gas
There are still the situations being unevenly distributed.And cause bottom valve that cannot close because gas is passed through from bottom, the dead volume of bottom reaction increases
Greatly, reaction is not thorough.Air displacement in reaction kettle is not thorough the condition that anhydrous and oxygen-free is not only not achieved and completely cuts off air, makes anti-
It should be affected, yield decline, if encountering inflammable and explosive reaction mass, there is also serious security risks.
Summary of the invention
The purpose of this utility model is that improving the deficiency of prior art and providing one kind makes before chemical reaction and reacted
The air displacement of journey reaction condition that is more thorough, safe and reliable, reaching anhydrous and oxygen-free and isolation air, while being reacted by changing
The fluid state of system improves the protection gas shielded reaction unit of reaction speed and product yield.
The purpose of this utility model is achieved in that a kind of protection gas shielded reaction unit, including reaction kettle, stirring
Device, feed opening, discharging pipeline, air inlet pipe, escape pipe cover upper and pacify its main feature is that air inlet pipe is mounted on reaction kettle by flange
Gas distribution tube in reaction kettle connects, and from air inlet, into kettle, airintake direction is sequentially arranged with cut-off in air inlet pipe
Valve, pressure reducing valve, gas flowmeter, needle-valve, pressure gauge, check (non-return) valve, escape pipe are mounted on the top of reaction unit.
In order to further realize the purpose of this utility model, it can be that shape size is evenly equipped on gas distribution tube is consistent
20-30 venthole, each venthole is equipped with check valve.
Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model use will be protected
Shield gas (inert gas) is passed through inside reaction liquid from gas distribution tube, top discharge to emission-control equipment, and protection gas is passed through
Pipeline setting is covered in reaction kettle, and protection gas is passed through installation shut-off valve, pressure reducing valve, gas flowmeter, needle-valve, pressure on pipeline
Table, check (non-return) valve, pressure gauge and gas flowmeter protect gas conveying to judge by the pressure and flow of detection protection gas conveying
Whether normal, check (non-return) valve can prevent material from entering protection gas air inlet, and needle valve, pressure reducing valve and shut-off valve can be controlled effectively
The inlet for protecting gas guarantees enough gas supplies；Venthole on gas distribution tube is changed, venthole is adjusted
Quantity and capacity, and then can change the fluid state of reaction system, outlet hole exits fill check valve, and reaction solution is prevented to enter
Protect gas distributor pipe.Compared with the prior device, displaced air is more thorough for the utility model, and safety coefficient is higher, before feeding intake, to whole
The logical protection gas displaced air of a reaction kettle, can contact to avoid reaction mass with air, effectively prevent the hair of explosion or fire
It is raw, eliminate security risk；During prohibiting oxygen reaction progress, the different parts of reaction solution are passed through protection gas from reaction kettle,
Can thorough displaced air, effectively reactant is avoided to contact with air, reaches the reaction condition of anaerobic, while can change reaction
The fluid state of liquid adjusts reacting fluid state at any time, is controlled reaction process, improves the yield of reaction.It should
Utility model can be generalized to the device of gas-liquid two-phase reaction system using upper, be conducive to improve reaction rate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
In figure: 1, shut-off valve, 2, pressure reducing valve, 3, gas flowmeter, 4, needle-valve, 5, check (non-return) valve, 6, pressure gauge, 7, gas point
Stringing, 8, reaction kettle, 9, blender, 10, discharging pipeline, 11, feed opening, 12 air inlet pipe, 13, escape pipe.
Specific embodiment
A kind of protection gas shielded reaction unit is referring to Fig.1 that blender 9 is equipped in reaction kettle 8, feed opening 11 is arranged
On 8 kettle cover of reaction kettle, the bottom of reaction kettle 8 is equipped with discharging pipeline 10, and air inlet pipe 12 is mounted on 8 kettle cover of reaction kettle by flange
It is upper and connected with the gas distribution tube 7 being mounted in reaction kettle 8, in air inlet pipe 12 from air inlet into kettle airintake direction
It is sequentially arranged with shut-off valve 1, pressure reducing valve 2, gas flowmeter 3, needle-valve 4, pressure gauge 6, check (non-return) valve 5, the escape pipe equipped with control valve
13 are mounted on 8 kettle cover of reaction kettle.
In order to adjust the fluid state for changing reaction system, the consistent 20- of shape size is evenly equipped on gas distribution tube 7
30 ventholes, each venthole are equipped with check valve.
Claims (2)
1. a kind of protection gas shielded reaction unit, including reaction kettle, blender, feed opening, discharging pipeline, air inlet pipe, escape pipe,
It is connected it is characterized in that air inlet pipe is mounted on to cover above on reaction kettle and be mounted on the gas distribution tube in reaction kettle by flange,
In air inlet pipe from air inlet into kettle airintake direction be sequentially arranged with shut-off valve, pressure reducing valve, gas flowmeter, needle-valve, pressure gauge,
Check (non-return) valve, escape pipe are mounted on the top of reaction unit.
2. a kind of protection gas shielded reaction unit according to claim 1, it is characterized in that being evenly equipped on gas distribution tube
The consistent 20-30 venthole of shape size, each venthole are equipped with check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821305501.0U CN208742532U (en) | 2018-08-14 | 2018-08-14 | A kind of protection gas shielded reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821305501.0U CN208742532U (en) | 2018-08-14 | 2018-08-14 | A kind of protection gas shielded reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208742532U true CN208742532U (en) | 2019-04-16 |
Family
ID=66080168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821305501.0U Active CN208742532U (en) | 2018-08-14 | 2018-08-14 | A kind of protection gas shielded reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208742532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486624A (en) * | 2019-08-28 | 2019-11-22 | 西南石油大学 | A kind of gas high sealing pressure regulation system and method at a slow speed |
| CN111718279A (en) * | 2020-07-28 | 2020-09-29 | 山东盛华电子新材料有限公司 | Method and device for continuously producing sartanbiphenyl |
-
2018
- 2018-08-14 CN CN201821305501.0U patent/CN208742532U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486624A (en) * | 2019-08-28 | 2019-11-22 | 西南石油大学 | A kind of gas high sealing pressure regulation system and method at a slow speed |
| CN111718279A (en) * | 2020-07-28 | 2020-09-29 | 山东盛华电子新材料有限公司 | Method and device for continuously producing sartanbiphenyl |
| CN111718279B (en) * | 2020-07-28 | 2023-04-07 | 山东盛华电子新材料有限公司 | Method and device for continuously producing sartanbiphenyl |
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