CN217746991U - Gas inlet component of gas-liquid rapid reaction crystallizer and crystallizer - Google Patents
Gas inlet component of gas-liquid rapid reaction crystallizer and crystallizer Download PDFInfo
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- CN217746991U CN217746991U CN202220429580.6U CN202220429580U CN217746991U CN 217746991 U CN217746991 U CN 217746991U CN 202220429580 U CN202220429580 U CN 202220429580U CN 217746991 U CN217746991 U CN 217746991U
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Abstract
The utility model discloses a gas inlet component and crystallizer of gas-liquid quick reaction crystallizer. The gas inlet component comprises an inner cylinder, a middle cylinder and an outer cylinder; the top of the inner cylinder is connected with an air inlet pipe, and the bottom of the inner cylinder is provided with an inner cylinder air outlet; the middle cylinder is sleeved outside the inner cylinder, a protective liquid input pipe is arranged in a gap area between the middle cylinder and the inner cylinder and extends into an air outlet of the inner cylinder, the bottom of the middle cylinder is contracted into a deflection funnel, and a crystal discharge valve is arranged at the bottom of the deflection funnel; the outer cylinder is reversely buckled outside the middle cylinder, the inner cylinder and the protective liquid input pipe penetrate through the top of the outer cylinder, and the penetrating part is sealed. The gas-liquid contact takes place above the liquid level of reaction liquid main part, and area of contact is big and controllable, avoids the reaction too violently to lead to the crystallization rate too fast, and the solid is attached to near the gas outlet. The gas outlet and the reaction liquid main body are isolated by adopting a solvent, the gas phase is discontinuous, the phenomenon that the gas inlet pipe orifice is blocked by crystallization is avoided, and the stable operation of the gas-liquid reaction crystallization process is ensured.
Description
Technical Field
The utility model relates to a gas inlet component and crystallizer of gas-liquid quick reaction crystallizer is applied to the process that has gaseous quick consumption to have solid to generate simultaneously, relevant process in chemical engineering, bioengineering, pharmacy, environmental protection.
Background
In the traditional gas-liquid reaction crystallization process, gas generally contacts and reacts with liquid in a mode of bubbling below the liquid level or directly contacting with the liquid on the liquid level. When bubbling is carried out below the liquid level, gas is quickly dissolved in the liquid phase, reaction crystallization quickly generates solid, a gas outlet is possibly blocked, the gas-liquid contact effect is poor, even suck-back or blockage occurs, and the production is influenced. For the reaction directly contacting the liquid surface above the liquid surface, the liquid reactant is volatilized from the liquid phase to the gas phase, and the gas contacts the gas at the outlet pipe to generate solid and block the outlet.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a gas inlet component of a gas-liquid quick reaction crystallizer and a crystallizer.
A gas inlet component of a gas-liquid rapid reaction crystallizer comprises an inner cylinder, a middle cylinder and an outer cylinder; the top of the inner cylinder is connected with an air inlet pipe, and the bottom of the inner cylinder is provided with an inner cylinder air outlet; the middle cylinder is sleeved outside the inner cylinder, a protective liquid input pipe is arranged in a gap area between the middle cylinder and the inner cylinder and extends into an air outlet of the inner cylinder, the bottom of the middle cylinder is contracted into a deflection funnel, and a crystal discharge valve is arranged at the bottom of the deflection funnel; the outer cylinder is reversely buckled outside the middle cylinder, and the inner cylinder and the protective liquid input pipe penetrate through the top of the outer cylinder and are sealed at the penetrating part.
The lower end of the protective liquid input pipe is flush with the air outlet of the inner cylinder in height.
The middle cylinder is provided with a wall thickness detector which is an ultrasonic thickness sensor, a capacitance thickness sensor or a microwave thickness sensor.
The lower part of the middle cylinder is provided with an oscillator for removing solid blockage; the oscillator is an ultrasonic generator, an electromagnetic oscillator or a mechanical oscillator and is arranged on the outer surface or the inner surface of the middle cylinder.
The air outlet of the inner cylinder is a porous air distribution pipe, an open air pipe, a sand core air outlet or an air outlet covered with a breathable film.
The crystal discharge valve is a solenoid valve or a pneumatic valve which can be remotely controlled.
A gas-liquid fast reaction crystallizer adopting the gas-liquid fast reaction crystallizer comprises a stirring motor, a liquid reactant inlet pipe, a crystallizer jacket, a crystallizer shell, a gas inlet component and a stirring paddle; the stirring motor is positioned at the top of the crystallizer shell, one end of the stirring paddle is connected with the stirring motor, and the other end of the stirring paddle is positioned in the crystallizer; the main body of the gas inlet component is positioned in the crystallizer, and a gas inlet pipe and a protective liquid input pipe of the gas inlet component respectively penetrate out of the crystallizer shell; one end of a liquid reactant inlet pipe is positioned outside the crystallizer, and the other end of the liquid reactant inlet pipe is positioned inside the crystallizer; a crystal slurry outlet pipe is arranged at the bottom of the crystallizer; the crystallizer jacket surrounds the middle lower part of the crystallizer shell, the crystallizer jacket is filled with circulating heat transfer media, a circulating cooling medium outlet is formed in the upper part of the crystallizer jacket, a circulating cooling medium inlet is formed in the lower part of the crystallizer jacket, and the circulating heat transfer media are filled in the crystallizer jacket.
The utility model has the advantages that:
1) The gas is mixed and dispersed with the solvent in advance, the gas contacts with the reaction liquid and occurs in an annular space, the contact area is large, and the reaction is full.
2) The gas flows out from the outlet and contacts with the liquid phase main body of the reaction crystallizer after being buffered and blocked by the solvent, so that the problems of violent reaction, unstable speed and the like caused by direct contact are avoided.
3) The reaction is controlled to occur on the liquid level, and abnormal phenomena such as suck-back and the like are avoided.
4) A wall thickness detector and an oscillator can be arranged, so that the cleaning and dredging can be timely carried out under abnormal working conditions, and the production is prevented from being influenced by serious blockage.
Drawings
FIG. 1 is a schematic diagram of a gas-liquid rapid reaction crystallizer;
in the figure: stirring motor 1, liquid reactant inlet pipe 2, circulating cooling medium outlet 3, crystallizer jacket 4, circulating cooling medium inlet 5, crystallizer shell 6, gas inlet component 7, stirring paddle 8, magma outlet pipe 9.
FIG. 2 is a schematic structural view of a gas inlet member of the gas-liquid rapid reaction crystallizer;
in the figure: an air inlet pipe 71, an outer cylinder 72, an intermediate cylinder 73, a wall thickness detector 74, an oscillator 75, a baffle funnel 76, a protective liquid input pipe 77, an inner cylinder 78, an overflow area 79, a gas-liquid contact reaction area 710, a bubbling dispersion area 711, an inner cylinder air outlet 712 and a crystal discharge valve 713.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the gas-liquid rapid reaction crystallizer comprises a stirring motor 1, a liquid reactant inlet pipe 2, a crystallizer jacket 4, a crystallizer shell 6, a gas inlet member 7 and stirring paddles 8. The stirring motor 1 is positioned at the top of the crystallizer shell 6, one end of the stirring paddle 8 is connected with the stirring motor 1, and the other end is positioned in the crystallizer.
The main body of the gas inlet component 7 is positioned in the crystallizer, when in use, part of the gas inlet component is positioned below the liquid level, and the gas inlet pipe and the protective liquid input pipe of the gas inlet component 7 respectively penetrate out of the crystallizer shell 6.
One end of the liquid reactant inlet tube 2 is located outside the crystallizer and the other end is located inside the crystallizer and below the liquid level.
The bottom of the crystallizer is provided with a crystal slurry outlet pipe 9.
The crystallizer jacket 4 surrounds the middle lower part of the crystallizer shell 6, the crystallizer jacket 4 is filled with circulating heat transfer media, the upper part of the crystallizer jacket 4 is provided with a circulating cooling medium outlet 3, the lower part of the crystallizer jacket 4 is provided with a circulating cooling medium inlet 5, and the inside of the crystallizer jacket is filled with circulating heat transfer media.
As shown in fig. 2, the gas inlet component of a gas-liquid rapid reaction crystallizer comprises three parts, namely an inner cylinder 78, a middle cylinder 73 and an outer cylinder 72; the gas inlet means are relatively independently replaceable functional units which may be used in a different crystallizer or reactor than that shown in fig. 1, whereas a different gas inlet means may be used in a crystallizer or reactor. The top of the inner cylinder 78 is connected with the air inlet pipe 71, and the bottom of the inner cylinder is provided with an inner cylinder air outlet 712; the middle cylinder 73 is sleeved outside the inner cylinder, a protective liquid input pipe 77 is arranged in a gap area between the middle cylinder and the inner cylinder and extends into the air outlet 712 of the inner cylinder, the bottom of the middle cylinder 73 is contracted into a deflection funnel 76, and the bottom of the deflection funnel is provided with a crystal discharge valve 713.
The outer cylinder 72 is reversely buckled outside the middle cylinder 73, and the inner cylinder 78 and the protective liquid input pipe 77 penetrate through the top of the outer cylinder and are sealed at the penetrating part. When the device is used, the upper edge of the middle cylinder is higher than the liquid level in the crystallizer or the reactor, and the downward opening of the outer cylinder is immersed under the liquid level of the reactor, so that gas is ensured to be fully contacted with the liquid level. The protective liquid and the gas are mixed in the middle drum bubbling dispersion area 711, and then the protective liquid and the gas are upwards gushed out of the opening of the middle drum through the overflow area 79 under the action of air pressure and downwards enter the outer drum to form a gas-liquid contact reaction area 710. The overflowed gas-liquid mixture is in surface contact with the main body of the reaction liquid in the gas-liquid contact reaction area, the gas is consumed by reaction, and the liquid (solvent) is mixed with the main body of the reaction liquid. Resulting in solid crystals settling within the gas-liquid contact reaction zone 710 annulus and flowing out of the gas inlet means.
The lower end of the protective liquid input pipe 77 can be flush with the height of the inner cylinder air outlet 712.
In fig. 2, the middle tube 73 is provided with a wall thickness detector 74, which may be an ultrasonic thickness sensor, a capacitive thickness sensor, or a microwave thickness sensor.
The lower part of the middle cylinder 73 is provided with an oscillator 75 for removing solid blockage; the oscillator is an ultrasonic generator, an electromagnetic oscillator or a mechanical oscillator and is arranged on the outer surface or the inner surface of the middle cylinder.
The inner cylinder air outlet 712 is a porous air distribution pipe, an open air pipe, a sand core air outlet or an air outlet covered with a breathable film.
The crystal discharge valve 713 is a remotely controllable solenoid or pneumatic valve for discharging the crystal under cleaning.
Application examples
Before gas and liquid flow through the gas inlet component, besides pressure regulating and metering requirements of a pump, a flowmeter, a pressure stabilizing valve and the like, components such as a check valve and the like are used for preventing back suction and back flow.
Before the reaction, the liquid reactant is injected into the reactor to a proper liquid level, the reaction solvent is continuously input through the protective liquid input pipe 77, and the liquid level of the solvent is controlled to be always at the height of the overflow area 79. The gas reactant is fed from the gas inlet pipe 71, the gas flows from top to bottom in the inner cylinder, the gas is blown out from the holes or the membranes and then is contacted and mixed with the solvent in the middle cylinder, the solvent fed from the protective liquid feeding pipe 77 flows from bottom to top in the middle cylinder, overflows from the top of the middle cylinder and enters the liquid phase of the reactor or the crystallizer. The gas overflows from the top of the middle barrel, flows from top to bottom under the pushing of pressure in the gap between the middle barrel and the outer barrel, contacts with the liquid phase in the reactor at the middle lower part of the outer barrel, is consumed after reaction, and the generated solid falls into the liquid phase and is taken away by the flowing reaction liquid. Because the gas reactant and the liquid reactant are blocked by the protective liquid and cannot be in direct contact, a large amount of solid is not generated due to over violent reaction, and pipelines are not blocked. When the boiling point of the liquid reactant is low, the volatile liquid reactant is heated and gasified, enters the gas-liquid contact reaction area 710 or the overflow area 79, reacts on the inner wall and the outer wall of the middle cylinder 73 and the inner wall of the outer cylinder 72 to generate solid deposits, the cross section area of the annular space on the inner side and the outer side of the middle cylinder 73 is reduced after a period of time, the gas circulation is influenced, the wall thickness is monitored in real time through the wall thickness detector 74, when the wall thickness exceeds a set value, the oscillator 75 is started, the formed deposits are broken and fall under the action of mechanical waves, meanwhile, the crystal discharge valve 713 is started, the flow of the protective liquid from the protective liquid input pipe 77 is increased, the solid in the middle cylinder 73 is flushed out through the crystal discharge valve 713, and the production is prevented from being seriously blocked and influenced.
The middle cylinder 73 is internally kept with a liquid seal, the liquid seal adopts liquid which does not react with gas in the inner cylinder or has low solubility, generally is a solvent for reaction or crystallization, and the height of the liquid seal is ensured to be higher than the gas outlet of the inner cylinder. Controlling the gas-liquid flow, wherein the gas flow in the inner cylinder is matched with the consumption speed in the liquid phase of the reactor, and the solvent flow in the middle cylinder is ensured to be capable of always submerging the gas outlet of the inner cylinder. When liquid in the reactor gushes into the middle cylinder due to improper operation, gas reaction crystallization is generated and attached to the inner cylinder 78, the wall thickness of the inner cylinder is changed, the reaction can be suspended, the crystal discharge valve 713 at the bottom of the inner cylinder is opened, the oscillator 75 is opened to crush crystals, the solvent flow is increased to flush, the crystal discharge valve and the oscillator are closed after dredging, and normal production is recovered.
Claims (7)
1. A gas inlet component of a gas-liquid rapid reaction crystallizer is characterized in that: comprises an inner cylinder (78), a middle cylinder (73) and an outer cylinder (72); the top of the inner cylinder (78) is connected with an air inlet pipe (71), and the bottom of the inner cylinder is provided with an inner cylinder air outlet (712); the middle cylinder (73) is sleeved outside the inner cylinder, a gap area between the middle cylinder and the inner cylinder is provided with a protective liquid input pipe (77) which extends into a gas outlet (712) of the inner cylinder, the bottom of the middle cylinder (73) is contracted into a deflection funnel (76), and the bottom of the deflection funnel is provided with a crystal discharge valve (713); the outer cylinder (72) is reversely buckled outside the middle cylinder (73), and the inner cylinder (78) and the protective liquid input pipe (77) penetrate through the top of the outer cylinder and are sealed at the penetrating part.
2. The gas inlet structure of a gas-liquid rapid reaction crystallizer according to claim 1, wherein the lower end of the protective liquid input pipe (77) is flush with the height of the gas outlet (712) of the inner cylinder.
3. The gas inlet structure of a gas-liquid rapid reaction crystallizer according to claim 1, wherein the middle cylinder (73) is provided with a wall thickness detector (74) which is an ultrasonic thickness sensor, a capacitance thickness sensor or a microwave thickness sensor.
4. The gas inlet structure of a gas-liquid rapid reaction crystallizer according to claim 1, wherein the lower portion of the middle cylinder (73) is provided with an oscillator (75) for removing solid blockage; the oscillator is an ultrasonic generator, an electromagnetic oscillator or a mechanical oscillator and is arranged on the outer surface or the inner surface of the middle cylinder.
5. The gas inlet component of a gas-liquid rapid reaction crystallizer according to claim 1, wherein the inner cylinder gas outlet (712) is a porous gas distribution pipe, an open gas pipe, a sand core gas outlet or a gas outlet coated with a gas permeable membrane.
6. Gas inlet structure of a gas-liquid rapid reaction crystallizer according to claim 1, characterized in that the crystal discharge valve (713) is a solenoid valve or a pneumatic valve that can be remotely controlled.
7. A gas-liquid rapid reaction crystallizer, which is characterized in that the gas inlet component of the gas-liquid rapid reaction crystallizer according to claim 1 is adopted, and comprises a stirring motor (1), a liquid reactant inlet pipe (2), a crystallizer jacket (4), a crystallizer shell (6), a gas inlet component (7) and a stirring paddle (8); the stirring motor (1) is positioned at the top of the crystallizer shell (6), one end of the stirring paddle (8) is connected with the stirring motor (1), and the other end is positioned in the crystallizer; the main body of the gas inlet component (7) is positioned in the crystallizer, and a gas inlet pipe and a protective liquid input pipe of the gas inlet component (7) respectively penetrate out of the crystallizer shell (6); one end of a liquid reactant inlet pipe (2) is positioned outside the crystallizer, and the other end of the liquid reactant inlet pipe is positioned inside the crystallizer; a crystal slurry outlet pipe (9) is arranged at the bottom of the crystallizer; the crystallizer jacket (4) surrounds the middle lower part of the crystallizer shell (6), the crystallizer jacket (4) is filled with circulating heat transfer media, the upper part of the crystallizer jacket (4) is provided with a circulating cooling medium outlet (3), the lower part of the crystallizer jacket (4) is provided with a circulating cooling medium inlet (5), and the circulating heat transfer media are filled in the crystallizer jacket.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021208875562 | 2021-04-27 | ||
| CN202120887556 | 2021-04-27 |
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| Publication Number | Publication Date |
|---|---|
| CN217746991U true CN217746991U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220429580.6U Active CN217746991U (en) | 2021-04-27 | 2022-03-02 | Gas inlet component of gas-liquid rapid reaction crystallizer and crystallizer |
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| CN (1) | CN217746991U (en) |
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- 2022-03-02 CN CN202220429580.6U patent/CN217746991U/en active Active
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