CN216224294U - Fixed bed reactor capable of improving loading capacity - Google Patents
Fixed bed reactor capable of improving loading capacity Download PDFInfo
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- CN216224294U CN216224294U CN202122719338.0U CN202122719338U CN216224294U CN 216224294 U CN216224294 U CN 216224294U CN 202122719338 U CN202122719338 U CN 202122719338U CN 216224294 U CN216224294 U CN 216224294U
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Abstract
The utility model discloses a fixed bed reactor capable of improving loading capacity, which comprises a catalytic tank and a liquid discharge tank which are arranged up and down, wherein the catalytic tank comprises a catalytic tank main body, a bottom ceramic ball layer, a catalyst bed layer, a top ceramic ball layer, a liquid distributor and a distributing pipe are sequentially arranged in the catalytic tank main body from bottom to top, and a balance pipe is communicated between the upper part of the liquid discharge tank and the bottom of the catalytic tank main body. The advantages are that: the reactor comprises a catalytic tank and a liquid discharge tank which are arranged up and down, materials after reaction can be discharged out of the catalytic tank in time, the phenomena of local reaction aggregation and heat aggregation caused by the fact that a catalyst at the lower part is soaked by liquid are prevented, and the service life of the catalyst is prolonged; and the reacted materials can be discharged to a lower liquid discharge tank in time, so that the continuity of the reaction and the feeding stability of downstream equipment are ensured.
Description
The technical field is as follows:
the utility model relates to the technical field of fixed bed reactors, in particular to a fixed bed reactor capable of improving loading capacity.
Background art:
the fixed bed reactor is characterized in that a granular solid catalyst or a solid reactant is filled in the reactor to form a stacked bed layer with a certain height, and a gas or liquid material flows through a static fixed bed layer through a granular gap to realize a heterogeneous reaction process. The reactor is characterized in that solid particles filled in the reactor are fixed, and the reactor is different from a moving bed and a fluidized bed in which solid materials move in the reactor, and is also called a packed bed reactor. The high-pressure zirconium material reactor is mainly a gas-liquid phase reactor and mainly comprises a tank body, wherein a support frame is fixed at the lower part of the tank body, a catalyst is loaded on the support frame, gas-phase and liquid-phase raw materials are added from the top of the tank body, flow through the catalyst to complete reaction, and then are discharged from an outlet at the bottom of the reactor. However, the support frame needs to be welded on the zirconium composite plate, the thickness of the composite plate is only 5mm, the joint strength of the support frame and the shell is guaranteed during design, the support frame is guaranteed not to be torn due to overlarge bearing capacity under reaction load, the load of the reactor is restricted, meanwhile, the risk that the composite layer (the zirconium composite plate) of the reactor is torn is increased, the size of the support ring and the loading capacity of the catalyst are limited due to the bearing capacity of the composite layer, and the safety risk is increased accordingly.
The utility model has the following contents:
the utility model aims to provide a fixed bed reactor with improved loading capacity, which has the advantage of increasing the loading amount of a catalyst.
The utility model is implemented by the following technical scheme: a fixed bed reactor for improving loading capacity comprises a catalytic tank and a liquid discharge tank which are arranged from top to bottom, wherein the catalytic tank comprises a catalytic tank main body, a bottom ceramic ball layer, a catalyst bed layer, a top ceramic ball layer, a liquid distributor and a distributing pipe are sequentially arranged in the catalytic tank main body from bottom to top, an inlet of the distributing pipe extends to the outside of the catalytic tank main body, an air inlet valve is installed at the top of the catalytic tank main body, a catalyst discharge valve and a discharge port are arranged at the bottom end of the catalytic tank main body, and a vortex breaker is fixed at the top end of the discharge port; the discharge opening is communicated with the top end of the liquid discharge tank, the bottom end of the liquid discharge tank is communicated with a discharge pipe, and a discharge control valve is mounted on the discharge pipe; an exhaust control valve is communicated with the top of the liquid discharge tank, and a balance pipe is communicated between the upper part of the liquid discharge tank and the bottom of the catalytic tank main body.
Further, bottom porcelain ball layer includes from down upwards porcelain ball particle size reduces in proper order first porcelain ball layer, second porcelain ball layer, third porcelain ball layer and fourth porcelain ball layer down.
Further, first porcelain ball layer the second porcelain ball layer the third porcelain ball layer the porcelain ball particle size on fourth porcelain ball layer is 25mm, 13mm, 6mm, 3mm in proper order, first porcelain ball layer the second porcelain ball layer the third porcelain ball layer the height on fourth porcelain ball layer is 800mm, 100mm, 80mm in proper order.
Furthermore, a high liquid level sensor and a low liquid level sensor are respectively arranged above and below the liquid discharge tank, and the high liquid level sensors are positioned below the balance pipe; install the governing valve on the discharging pipe, high level sensor with low level sensor all is connected with the input electricity of controller, the output of controller with the governing valve electricity is connected.
Further, pressure monitoring devices are arranged on the upper portion of the catalytic tank main body and the upper portion of the liquid discharge tank; and temperature monitoring devices are respectively arranged on the side walls of the catalytic tank main body corresponding to the upper part, the middle part and the lower part of the catalyst bed layer.
Further, the top end of the balance pipe extends to the inside of the vortex breaker.
The utility model has the advantages that: the reactor comprises a catalytic tank and a liquid discharge tank which are arranged up and down, materials after reaction can be discharged out of the catalytic tank in time, the phenomena of local reaction aggregation and heat aggregation caused by the fact that a catalyst at the lower part is soaked by liquid are prevented, and the service life of the catalyst is prolonged; and the reacted materials can be discharged to a lower liquid discharge tank in time, so that the continuity of the reaction and the feeding stability of downstream equipment are ensured. Through setting up bottom porcelain ball layer, directly provide the holding power for the catalyst bed by catalytic tank main part lower part circle head, avoided because of the load changes the composite bed that leads to and torn the risk, improved the loading capacity of catalyst and reactor load and also improved the security of reactor simultaneously.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
The catalytic tank comprises a catalytic tank 1, a liquid discharge tank 2, a catalytic tank main body 3, a bottom ceramic ball layer 4, a first ceramic ball layer 41, a second ceramic ball layer 42, a third ceramic ball layer 43, a fourth ceramic ball layer 44, a catalyst bed layer 5, a top ceramic ball layer 6, a liquid distributor 7, a distribution pipe 8, a catalyst discharge valve 9, a discharge port 10, a discharge pipe 11, a discharge control valve 12, a discharge control valve 13, a balance pipe 14, a high liquid level sensor 15, a low liquid level sensor 16, an adjusting valve 17, a controller 18, a pressure monitoring device 19, a temperature monitoring device 20, an air inlet valve 21 and a vortex breaker 22.
The specific implementation mode is as follows:
in the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, their indicated orientations or positional relationships are based on those shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in figures 1 and 2, a fixed bed reactor for improving loading capacity, it includes overhead catalysis jar 1 and fluid-discharge tank 2 that set up from top to bottom, catalytic catalysis jar 1 includes catalytic tank main part 3, from upwards setting gradually bottom porcelain ball layer 4 down in catalytic tank main part 3's inside, catalyst bed 5, top porcelain ball layer 6, liquid distributor 7 and distributing pipe 8, utilize bottom porcelain ball layer 4 to replace the support frame, bottom porcelain ball layer 4 directly places the bottom at catalytic tank main part 3, regard the round head of catalytic tank main part 3 bottom as the holding surface of catalyst bed 5, guarantee that the direct dispersion of the downward power of catalyst bed 5 is around the disc of bottom head and the vortex ware, can bear the bearing capacity that upper portion provided downwards under the full load. Bottom porcelain ball layer 4 includes from the first porcelain ball layer 41 that upwards porcelain ball particle size reduces in proper order down, second porcelain ball layer 42, third porcelain ball layer 43 and fourth porcelain ball layer 44, it is preferred, first porcelain ball layer 41, second porcelain ball layer 42, third porcelain ball layer 43, the porcelain ball particle size of fourth porcelain ball layer 44 is 25mm in proper order, 13mm, 6mm, 3mm, first porcelain ball layer 41, second porcelain ball layer 42, third porcelain ball layer 43, the height of fourth porcelain ball layer 44 is 800mm in proper order, 100mm, 80 mm.
The inlet of the distributing pipe 8 extends to the outside of the catalytic tank main body 3, the top of the catalytic tank main body 3 is provided with an air inlet valve 21, the bottom end of the catalytic tank main body 3 is provided with a catalyst discharge valve 9 and a discharge port 10, and the top end of the discharge port 10 is fixed with a vortex breaker 22; liquid and gas are respectively added from the upper part of the catalytic tank main body 3 through the distributing pipe 8 and the air inlet valve 21, then are uniformly distributed 7 by steps through the liquid, and downwards sequentially pass through the top ceramic ball layer 6 and the catalyst bed layer 5 to reach the bottom ceramic ball layer 4; the gas-liquid mixture reacts during the passage through the catalyst bed 5.
The discharge opening 10 is communicated with the top end of the liquid discharge tank 2, the bottom end of the liquid discharge tank 2 is communicated with a discharge pipe 11, and a discharge control valve 12 is arranged on the discharge pipe 11; the gas-liquid mixture is subjected to catalytic reaction by the catalyst bed layer 5 and is discharged into the liquid discharge tank 2 from the discharge port 10, so that the liquid of the catalytic reaction is ensured to be discharged from the catalytic tank main body 3 in time, the phenomena of local reaction aggregation and heat aggregation caused by long-time soaking of the catalyst by materials are prevented, and the service life of the catalyst is prolonged. The reacted materials are discharged from the catalytic tank 1 in time, so that the continuity of the reaction and the stability of feeding of downstream equipment can be ensured; the noncondensable gas during the reaction is discharged from the exhaust control valve 13. A discharge control valve 13 is communicated with the top of the liquid discharge tank 2, a balance pipe 14 is communicated between the upper part of the liquid discharge tank 2 and the bottom of the catalytic tank main body 3, and the top end of the balance pipe 14 extends into the vortex breaker 22; balance pipe 14 can be with the bottom of catalytic tank main part 3 and the top intercommunication of flowing back jar 2, and accessible balance pipe 14 balances the pressure between two jar bodies when there is gas catalytic tank main part 3 lower part, guarantees that the material discharges smoothly to the flowing back jar 2 of below in, plays the effect of balanced pressure.
A high liquid level sensor 15 and a low liquid level sensor 16 are respectively arranged above and below the liquid discharge tank 2, and the high liquid level sensor 15 is positioned below the balance pipe 14; an adjusting valve 17 is installed on the discharge pipe 11, the high liquid level sensor 15 and the low liquid level sensor 16 are both electrically connected with the input end of a controller 18, and the output end of the controller 18 is electrically connected with the adjusting valve 17. Mutually support through high level sensor 15 and low level sensor 16 and detect the liquid level in the fluid-discharge tank 2 to reach liquid level information and give controller 18 with detecting, when the liquid level surpassed high level sensor 15, controller 18 control governing valve 17 increased the aperture, accelerated the discharge of material, reduced to between the high level sensor of height until the liquid level, governing valve 17 resumes to normal aperture. When the liquid level is lower than the low liquid level sensor 16, the opening degree of the regulating valve 17 is controlled to be reduced, so that the liquid level in the liquid discharge tank 2 is rapidly increased to a position between the high and low liquid level sensors, and the regulating valve 17 is restored to the normal opening degree.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A fixed bed reactor capable of improving loading capacity is characterized by comprising a catalytic tank and a liquid discharge tank which are arranged up and down, wherein the catalytic tank comprises a catalytic tank main body, a bottom ceramic ball layer, a catalyst bed layer, a top ceramic ball layer, a liquid distributor and a distributing pipe are sequentially arranged in the catalytic tank main body from bottom to top, an inlet of the distributing pipe extends to the outside of the catalytic tank main body, an air inlet valve is installed at the top of the catalytic tank main body, a catalyst discharge valve and a discharge port are arranged at the bottom end of the catalytic tank main body, and a vortex breaker is fixed at the top end of the discharge port; the discharge opening is communicated with the top end of the liquid discharge tank, the bottom end of the liquid discharge tank is communicated with a discharge pipe, and a discharge control valve is mounted on the discharge pipe; an exhaust control valve is communicated with the top of the liquid discharge tank, and a balance pipe is communicated between the upper part of the liquid discharge tank and the bottom of the catalytic tank main body.
2. The fixed bed reactor with the improved loading capacity of claim 1, wherein the bottom ceramic ball layer comprises a first ceramic ball layer, a second ceramic ball layer, a third ceramic ball layer and a fourth ceramic ball layer, wherein the ceramic ball particle sizes of the first ceramic ball layer, the second ceramic ball layer, the third ceramic ball layer and the fourth ceramic ball layer are sequentially reduced from bottom to top.
3. The fixed bed reactor capable of improving the loading capacity of claim 2, wherein the ceramic ball particle diameters of the first ceramic ball layer, the second ceramic ball layer, the third ceramic ball layer and the fourth ceramic ball layer are 25mm, 13mm, 6mm and 3mm in sequence, and the heights of the first ceramic ball layer, the second ceramic ball layer, the third ceramic ball layer and the fourth ceramic ball layer are 800mm, 100mm, 80mm and 80mm in sequence.
4. The fixed bed reactor with improved loading capacity of any one of claims 1 to 3, wherein a high liquid level sensor and a low liquid level sensor are respectively arranged above and below the liquid discharge tank, and the high liquid level sensor is positioned below the balance pipe; install the governing valve on the discharging pipe, high level sensor with low level sensor all is connected with the input electricity of controller, the output of controller with the governing valve electricity is connected.
5. The fixed-bed reactor with improved loading capacity as claimed in any one of claims 1 to 3, wherein pressure monitoring means are provided at both the upper part of the catalyst tank main body and the upper part of the drain tank; and temperature monitoring devices are respectively arranged on the side walls of the catalytic tank main body at the upper part, the middle part and the lower part of the catalyst bed layer.
6. The fixed-bed reactor with improved loading capacity as claimed in claim 4, wherein pressure monitoring means are provided at both the upper part of the catalyst tank main body and the upper part of the drain tank; and temperature monitoring devices are respectively arranged on the side walls of the catalytic tank main body corresponding to the upper part, the middle part and the lower part of the catalyst bed layer.
7. An enhanced capacity fixed bed reactor according to claim 1, 2, 3 or 6, wherein the top end of said balance tube extends to the interior of said vortex breaker.
8. The increased capacity fixed bed reactor of claim 4, wherein the top end of the balance tube extends into the interior of the vortex breaker.
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| CN202122719338.0U CN216224294U (en) | 2021-11-08 | 2021-11-08 | Fixed bed reactor capable of improving loading capacity |
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| CN202122719338.0U CN216224294U (en) | 2021-11-08 | 2021-11-08 | Fixed bed reactor capable of improving loading capacity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253655A (en) * | 2022-08-15 | 2022-11-01 | 中国石油工程建设有限公司 | Large-size high-bed dry-process desulfurization tower free of personnel entering for loading and unloading |
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2021
- 2021-11-08 CN CN202122719338.0U patent/CN216224294U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115253655A (en) * | 2022-08-15 | 2022-11-01 | 中国石油工程建设有限公司 | Large-size high-bed dry-process desulfurization tower free of personnel entering for loading and unloading |
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