CN216224292U - Fixed bed reaction device - Google Patents

Abstract

The utility model discloses a fixed bed reaction device, which comprises a reactor, a circulating pump, a heat exchanger and a filtering device, wherein a discharging control valve is arranged on a discharging pipe, a first quick joint and a second quick joint are respectively arranged on a discharging pipe of the reactor and an inlet of the circulating pump, and a discharging pipe or the filtering device is detachably connected between the first quick joint and the second quick joint. The advantages are that: can dismantle between reactor blowing pipe and circulating pump import and be connected with filter or delivery pipe, when adding the catalyst granule for the first time, connect filter equipment between first quick-operation joint and second quick-operation joint, add washing water from the reactor, it can wash the catalyst granule to wash water, powder in the catalyst is along with wasing the water through the filter equipment filtering, and then can prevent that the powder in the catalyst from getting into the back system, solve the problem of low reaches equipment and instrument valve jam, reduce low reaches equipment fault rate, guarantee the normal production of system.

Description

Fixed bed reaction device

The technical field is as follows:

the utility model relates to the technical field of fixed bed reaction, in particular to a fixed bed reaction device.

Background art:

the fixed bed catalytic reactor is a static solid particle bed layer formed by filling a section of catalyst particles in the reactor, materials flow through the catalyst particle bed layer after being added from the top of the reactor, flow out from the bottom of the reactor after chemical reaction, flow out after being pumped to a heat exchanger through a circulating pump for heat dissipation and temperature reduction, flow out, one part of the materials flows back into the reactor for circulation, and the other part of the materials is output as materials. Wherein, the catalyst granule is the outsourcing product, wherein can contain a certain amount of powder, if directly put into use, will get into low reaches equipment along with the material of output, leads to equipment such as low reaches heat exchanger, circulating pump and material filter to block up, and the trouble is frequent, influences normal production, and precision equipment such as material filter overhauls the expense high, can increase cost. If the catalyst particles are directly screened by a machine, the surface of the catalyst is easy to damage, and the screened effective particles are reduced.

The utility model has the following contents:

the utility model aims to provide a fixed bed reaction device capable of reducing the failure rate of downstream equipment.

The utility model is implemented by the following technical scheme: the fixed bed reaction device comprises a reactor, a circulating pump and a heat exchanger, wherein a reactor discharge pipe of the reactor is communicated with an inlet of the circulating pump through a discharge pipe, an outlet of the circulating pump is communicated with an inlet pipeline of the heat exchanger, an outlet of the heat exchanger is divided into two paths, one path is communicated with a return port of the reactor through a pipeline, and the other path is communicated with a discharge pipe; the discharging pipe is provided with a discharging control valve, the reactor discharging pipe and the inlet of the circulating pump are respectively provided with a first quick joint and a second quick joint, and the discharging pipe or the filtering device is detachably connected between the first quick joint and the second quick joint.

Further, the filter device comprises a filter, and an inlet and an outlet of the filter are respectively connected with the first quick joint and the second quick joint through cleaning pipes.

Further, a pressure monitoring device is mounted on the cleaning pipe.

Furthermore, the cleaning pipe comprises a steel pipe section and a hose section, one end of the steel pipe section is communicated with the inlet or the outlet of the corresponding filter, the other end of the steel pipe section is connected with one end of the hose section through a third quick joint, and the other end of the hose section is connected with the corresponding first quick joint or the corresponding second quick joint.

Further, the filter comprises two filters which are arranged in parallel, and a cut-off valve is arranged at the inlet and the outlet of each filter.

The utility model has the advantages that: can dismantle between reactor blowing pipe and circulating pump import and be connected with filter or delivery pipe, when adding the catalyst granule for the first time, connect filter equipment between first quick-operation joint and second quick-operation joint, add washing water from the reactor, it can wash the catalyst granule to wash water, powder in the catalyst is along with wasing the water through the filter equipment filtering, and then can prevent that the powder in the catalyst from getting into the back system and causing low reaches equipment and instrument valve to block up, solve the problem that low reaches equipment blockked up, reduce low reaches equipment fault rate, guarantee the normal production of system. After cleaning, remove filter equipment, connect the delivery pipe between first quick-operation joint and second quick-operation joint and can normally throw the material production as normal production pipeline.

Description of the drawings:

FIG. 1 is a schematic diagram of a structure of the present invention.

Fig. 2 is another schematic structural diagram of the present invention.

The device comprises a reactor 1, a circulating pump 2, a heat exchanger 3, a reactor discharge pipe 101, a discharge pipe 4, a discharge pipe 5, a filtering device 6, a filter 601, a steel pipe section 6021, a hose section 6022, a pressure monitoring device 603, a cut-off valve 604, a third quick joint 605, a discharge control valve 7, a first quick joint 8 and a second quick joint 9.

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 fig. 1 and fig. 2, the fixed bed reactor comprises a reactor 1, a circulating pump 2 and a heat exchanger 3, wherein a reactor discharge pipe 101 of the reactor 1 is communicated with an inlet of the circulating pump 2 through a discharge pipe 4, an outlet of the circulating pump 2 is communicated with an inlet pipeline of the heat exchanger 3, an outlet of the heat exchanger 3 is divided into two paths, one path is communicated with a return port of the reactor 1 through a pipeline, and the other path is communicated with a discharge pipe 5; the device also comprises a filtering device 6, a discharging control valve 7 is arranged on the discharging pipe 5, a first quick joint 8 and a second quick joint 9 are respectively arranged on the discharging pipe 101 of the reactor and the inlet of the circulating pump 2, the discharging pipe 4 or the filtering device 6 is detachably connected between the first quick joint 8 and the second quick joint 9, the discharging pipe 4 and the filtering device 6 are detachably connected with the first quick joint and the second quick joint, and the device is convenient and quick to disassemble and assemble;

the filter device 6 comprises two filters 601 arranged in parallel, with shut-off valves 604 mounted on the inlet and outlet of each filter 601. The import and the export of filter 601 are connected with first quick-operation joint 8, second quick-operation joint 9 through the scavenge pipe respectively, install pressure monitoring device 603 on the scavenge pipe, and pressure monitoring device 603 is pressure sensor or manometer, can monitor pipeline pressure around the filter through pressure monitoring device 603, and then judges the filtration washing condition.

The cleaning pipe comprises a steel pipe section 6021 and a hose section 6022, one end of the steel pipe section 6021 is communicated with the inlet or the outlet of the corresponding filter 601, the other end of the steel pipe section 6021 is connected with one end of the hose section 6022 through a third quick joint 605, and the other end of the hose section 6022 is connected with the corresponding first quick joint 8 or the second quick joint 9; during cleaning, the hose section 6022 and the steel pipe section 6021 can be connected and put into use, and after cleaning is finished, the hose section 6022 can be detached, so that storage is facilitated, and messy pipelines in a factory are prevented.

Instructions for use:

1. cleaning process

As shown in fig. 1, after the reactor 1 is charged with a new catalyst, the steel pipe section 6021 and the hose section 6022 are connected via the third quick coupling 605, and then the first quick coupling 8 and the second quick coupling 9 are connected to the hose sections 6022 on the inlet side and the outlet side of the filter 601, respectively; then, closing the discharge control valve 7, adding cleaning water from a feed inlet of the reactor 1, starting the circulating pump 2, enabling the cleaning water in the reactor 1 to flow through the catalyst particle layer under the suction action of the circulating pump 2, enabling the catalyst powder to flow through the filter 601 along with the cleaning water, intercepting and filtering the powder in the cleaning water by the filter 601, and enabling the cleaning water to completely return to the reactor 1 for circular cleaning after passing through the heat exchanger 3; and (3) observing the pressure values monitored by the two pressure monitoring devices 603 in the cleaning process, when the pressure difference is reduced to a normal range, indicating that no powder exists in the cleaning water, opening a drain valve at the bottom of the reactor 1, discharging the cleaning water from the drain valve, and finishing cleaning.

2. Operating process

After cleaning is complete, the cleaning tube is removed from the first quick connector 8 and the second quick connector 9, and the flexible tube section 6022 is removed from the third quick connector 605, and the flexible tube section 6022 is retracted, as shown in fig. 2; and finally, connecting a discharge pipe 4 between the first quick joint 8 and the second quick joint 9, and opening the discharge control valve 7 to start the vehicle.

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 (6)

1. The fixed bed reaction device comprises a reactor, a circulating pump and a heat exchanger, wherein a reactor discharge pipe of the reactor is communicated with an inlet of the circulating pump through a discharge pipe, an outlet of the circulating pump is communicated with an inlet pipeline of the heat exchanger, an outlet of the heat exchanger is divided into two paths, one path is communicated with a return port of the reactor through a pipeline, and the other path is communicated with a discharge pipe; the device is characterized by further comprising a filtering device, wherein a discharging control valve is installed on the discharging pipe, a first quick connector and a second quick connector are respectively installed on the reactor discharging pipe and an inlet of the circulating pump, and the discharging pipe or the filtering device is detachably connected between the first quick connector and the second quick connector.

2. The fixed bed reactor apparatus according to claim 1, wherein the filter apparatus comprises a filter, and an inlet and an outlet of the filter are connected to the first quick coupling and the second quick coupling through a cleaning pipe, respectively.

3. A fixed bed reactor apparatus as set forth in claim 2 wherein a pressure monitoring device is mounted on said purge tube.

4. A fixed bed reactor according to claim 2 or 3, wherein the purge pipe comprises a steel pipe section and a hose section, one end of the steel pipe section is communicated with the inlet or outlet of the corresponding filter, the other end of the steel pipe section is connected with one end of the hose section through a third quick coupling, and the other end of the hose section is connected with the corresponding first quick coupling or the second quick coupling.

5. A fixed bed reactor apparatus as claimed in claim 2 or 3 which comprises a total of two said filters arranged in parallel, with shut-off valves fitted to the inlet and outlet of each said filter.

6. A fixed bed reactor apparatus as claimed in claim 4 which comprises a total of two said filters arranged in parallel, with shut-off valves mounted on the inlet and outlet of each said filter.

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