CN217472742U - High-efficiency pre-demethanizer - Google Patents

Abstract

The utility model discloses a high efficiency is demethanizing tower in advance, including the tower body, still include waste gas collection mechanism, the blast pipe is installed on the tower body right side, the blast pipe right side can be dismantled and be connected with the check valve, waste gas collection mechanism includes collecting box, an airtight section of thick bamboo, atmospheric pressure post, stopper, alarm switch and bee calling organ, tower body left side upper end fixedly connected with mounting bracket, mounting bracket upper end fixedly connected with preheating cabinet, pipe A is installed in the preheating cabinet left side, install valve body A on the pipe A. This high efficiency demethanizer in advance inserts the power socket with the inside heater tube switch-on of preheating cabinet through with external power plug, and the heating wire inside heating wire inserts the electric current and converts heat energy into, preheats the inside gas of box, and temperature sensor gives the terminal with real-time temperature signal transmission, supplies the staff to refer to, opens valve body B after reaching suitable temperature, and the gas after preheating flows into the tower body through pipe B, and production efficiency is high.

Description

High-efficiency pre-demethanizer

Technical Field

The utility model relates to a remove methane technical field in advance, in particular to high efficiency removes methane tower in advance.

Background

A rectification column for separating methane and hydrogen from other fractions in an ethylene production plant. Three streams of condensed liquid from the cold box system are fed to respective trays. Methane and hydrogen are separated from the tower top, and ethylene and heavier components are separated from the tower tea.

Patent No. CN202021465769.8 discloses a pre-demethanizer apparatus which meets design specifications and operating requirements, and which is simple in structure, easy to install, and low in manufacturing cost. It includes demethanizer in advance, reflux tank, the condenser that arranges in order from bottom to top, the bottom sprag of demethanizer in advance is in bottom skirt, it collects the export to be provided with ethylene on the lateral wall of bottom skirt, the bottom central point of demethanizer in advance is provided with ethylene collection mouth, ethylene collection mouth pass through the pipeline evaginate in ethylene collection export, the bottom of the direction of height inner chamber of demethanizer in advance is provided with the ethylene surge drum, the upper portion region of ethylene surge drum is provided with a plurality of tower trays from bottom to top in order, the top of demethanizer in advance is equipped with transition supporting sleeve admittedly, the bottom sprag of reflux tank in transition supporting sleeve's top outer ring week, the top of reflux tank is provided with upper portion connection supporting sleeve, the bottom rigid coupling of condenser is in the last ring week of connecting the skirt.

At present, the pre-demethanizer has the following disadvantages: 1. the gas inlet temperature of the previous pre-demethanizer does not reach the optimal internal reaction temperature of the demethanizer, so that the subsequent production efficiency is low; 2. in the past, tail gas of the pre-demethanizer lacks of rapid collecting equipment, is directly discharged to pollute the environment and waste resources. To this end, we propose a high efficiency prededemethanizer.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high efficiency demethanizer in advance, through with the external power plug insert with the power socket of the inside heating wire pipe switch-on of preheating cabinet, the heating wire inside heating wire inserts the electric current and converts heat energy into, preheat the inside gas of box, temperature sensor gives the terminal with real-time temperature signal transmission, supply the staff to refer to, open valve body B after reaching suitable temperature, gas after preheating flows into the tower body through pipe B, high production efficiency, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high efficiency is demethanizing tower in advance, includes the tower body, still includes waste gas collection mechanism, the blast pipe is installed on the tower body right side, the blast pipe right side can be dismantled and be connected with the check valve, waste gas collection mechanism includes collecting box, an airtight section of thick bamboo, atmospheric pressure post, stopper, alarm switch and bee calling organ, tower body left end upper end fixedly connected with mounting bracket, mounting bracket upper end fixedly connected with preheating cabinet, pipe A is installed in the preheating cabinet left side, install valve body A on the pipe A, pipe B is installed on the preheating cabinet right side, install valve body B on the pipe B, valve body B right side can be dismantled and be connected with the tower body, temperature sensor is installed in the preheating cabinet left side, preheating cabinet internally mounted has the heating wire pipe.

Further, the bottom of the tower body is fixedly connected with a base; the base plays a supporting role to the tower body.

Furthermore, the bottom of the collecting box is fixedly connected with a supporting rod; the supporting rod plays a supporting role for the collecting box.

Furthermore, the left side of the collecting box is detachably connected with a one-way valve, and the upper end of the collecting box is communicated with an airtight barrel; by opening the check valve on the exhaust pipe, the waste gas in the cavity at the terminal of the tower body flows into the collecting box through the exhaust pipe.

Furthermore, limiting grooves are formed in the inner walls of two sides of the airtight cylinder, limiting blocks are fixedly connected to two sides of the air pressure column, the limiting blocks slide along the inner portions of the limiting grooves in a matched mode, an alarm switch is installed at the top end of the inner portion of the airtight cylinder, and a buzzer is installed on the outer wall of the left side of the airtight cylinder; the gas cylinder rises along the inside of the airtight barrel under the gas pressure, the alarm switch is extruded, the buzzer is in signal connection with the alarm switch, and the alarm switch starts the buzzer to alarm to remind workers of collecting the waste gas fully.

Compared with the prior art, the utility model has the advantages of 1, open valve body A switch, pipe A inserts former gas, valve body A closes again, insert external power plug in with the power socket of preheating cabinet inside heating wire pipe switch-on, the heating wire access current of heating wire inside converts heat energy into, preheat the gas inside the box, temperature sensor transmits real-time temperature signal to the terminal, supply the staff to refer to, open valve body B after reaching suitable temperature, gas after preheating flows into the tower body through pipe B, the problem that the admission temperature of demethanizer in advance in the past can not reach the inside reaction temperature of best demethanizer, lead to follow-up production inefficiency is solved; 2. through opening the check valve on the blast pipe, waste gas in the cavity of tower body terminal flows into the collection box through the blast pipe, and the gas cylinder is inside ascending along airtight section of thick bamboo under gas pressure, and extrusion alarm switch carries out signal connection between bee calling organ and the alarm switch, and alarm switch starts bee calling organ and reports to the police and reminds staff's waste gas to collect and fill, has solved the tail gas of demethanizer in advance in the past and has lacked quick collecting device, the direct problem of discharging polluted environment and wasting resources.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a high-efficiency pre-demethanizer according to the present invention.

Fig. 2 is a schematic structural diagram of a waste gas collecting mechanism of a high-efficiency pre-demethanizer of the present invention.

Fig. 3 is a schematic view of a sectional structure of a preheating tank of a high-efficiency pre-demethanizer according to the present invention.

In the figure: 1. a tower body; 2. an exhaust pipe; 3. a one-way valve; 4. an exhaust gas collection mechanism; 401. a collection box; 402. an airtight cylinder; 403. a gas pressure column; 404. a limiting block; 405. an alarm switch; 406. a buzzer; 5. a mounting frame; 6. a preheating box; 7. a conduit A; 8. a valve body A; 9. a conduit B; 10. a valve body B; 11. a temperature sensor; 12. a base; 13. a support bar; 14. the wire tube is heated.

Detailed Description

In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, the utility model is further explained by combining the specific implementation mode.

As shown in fig. 1-3, a high-efficiency pre-demethanizer comprises a tower body 1, a waste gas collecting mechanism 4, an exhaust pipe 2 is arranged at the right side of the tower body 1, a one-way valve 3 is detachably connected at the right side of the exhaust pipe 2, the exhaust gas collecting mechanism 4 includes a collecting tank 401, an airtight cylinder 402, a barometric leg 403, a stopper 404, an alarm switch 405 and a buzzer 406, the upper end of the left side of the tower body 1 is fixedly connected with a mounting rack 5, the upper end of the mounting rack 5 is fixedly connected with a preheating box 6, the left side of the preheating box 6 is provided with a conduit A7, the conduit A7 is provided with a valve body A8, a guide pipe B9 is arranged at the right side of the preheating box 6, a valve body B10 is arranged on the guide pipe B9, the valve body B10 right side can be dismantled and be connected with tower body 1, temperature sensor 11 is installed in preheating cabinet 6 left side, preheating cabinet 6 internally mounted has heating wire pipe 14.

Wherein, the bottom of the tower body 1 is fixedly connected with a base 12; the base 12 supports the tower 1.

Wherein, the bottom of the collecting box 401 is fixedly connected with a support rod 13; the support rod 13 supports the collection container 401.

The left side of the collecting box 401 is detachably connected with a one-way valve 3, and the upper end of the collecting box 401 is communicated with an airtight barrel 402; by opening the one-way valve 3 on the exhaust pipe 2, the exhaust gas in the terminal cavity of the tower body flows into the collection tank 401 through the exhaust pipe 2.

The inner walls of two sides of the airtight cylinder 402 are provided with limiting grooves, two sides of the air pressure column 403 are fixedly connected with limiting blocks 404, the limiting blocks 404 slide along the inner parts of the limiting grooves in a matched manner, the top end of the inner part of the airtight cylinder 402 is provided with an alarm switch 405, and the outer wall of the left side of the airtight cylinder 402 is provided with a buzzer 406; the gas pressure column 403 rises along the inside of the airtight cylinder 402 under the gas pressure to press the alarm switch 405, the buzzer 406 is in signal connection with the alarm switch 405, and the alarm switch 405 starts the buzzer 406 to alarm and remind the staff that the waste gas is fully collected.

It should be noted that, the utility model relates to a high efficiency demethanizer in advance, in operation, open valve body A8 switch, pipe A7 inserts former gas, close valve body A8 again, insert the power supply socket with the inside heating wire pipe 14 switch-on of preheating cabinet 6 with external power plug, the heating wire access current of heating wire pipe 14 inside converts heat energy into, preheat the gas of box inside, temperature sensor 11 transmits real-time temperature signal to the terminal, supply the staff to refer to, open valve body B10 after reaching suitable temperature, gas after preheating flows into tower body 1 through pipe B9, the problem of the inlet air temperature of demethanizer in advance in the past not reaching the inside reaction temperature of best demethanizer, lead to follow-up production inefficiency is solved; through opening check valve 3 on the blast pipe 2, waste gas in the cavity of tower body terminal flows in collecting box 401 through blast pipe 2, gas-pressure column 403 is along the inside rising of airtight section of thick bamboo 402 under gas pressure, extrusion alarm switch 405, carry out signal connection between bee calling organ 406 and the alarm switch 405, alarm switch 405 starts bee calling organ 406 and reports to the police and reminds staff's waste gas to collect and is full, the problem of the tail gas of removing the methane tower in advance lacks quick collecting device, direct emission polluted environment and extravagant resource in the past has been solved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. A high efficiency predefmethane tower comprising a tower body (1), characterized in that: still include waste gas and collect mechanism (4), blast pipe (2) are installed on tower body (1) right side, blast pipe (2) right side can be dismantled and be connected with check valve (3), waste gas is collected mechanism (4) and is included collecting box (401), airtight section of thick bamboo (402), atmospheric pressure post (403), stopper (404), alarm switch (405) and bee calling organ (406), tower body (1) left side upper end fixedly connected with mounting bracket (5), mounting bracket (5) upper end fixedly connected with preheating cabinet (6), pipe A (7) are installed in preheating cabinet (6) left side, install valve body A (8) on pipe A (7), pipe B (9) are installed on preheating cabinet (6) right side, install valve body B (10) on pipe B (9), valve body B (10) right side can be dismantled and be connected with tower body (1), temperature sensor (11) are installed in preheating cabinet (6) left side, and a heating wire tube (14) is arranged in the preheating box (6).

2. A high efficiency predefmethane column as in claim 1 wherein: the bottom of the tower body (1) is fixedly connected with a base (12).

3. A high efficiency predemethanator column according to claim 1, wherein: the bottom of the collecting box (401) is fixedly connected with a supporting rod (13).

4. A high efficiency predefmethane column as in claim 1 wherein: the left side of the collection box (401) is detachably connected with a one-way valve (3), and the upper end of the collection box (401) is connected with an airtight barrel (402) in an intercommunicating manner.

5. A high efficiency predemethanator column according to claim 1, wherein: spacing grooves have been seted up to airtight section of thick bamboo (402) both sides inner wall, pneumatic column (403) both sides fixedly connected with stopper (404), stopper (404) slide along the spacing inslot portion cooperation, alarm switch (405) are installed on the inside top of airtight section of thick bamboo (402), bee calling organ (406) are installed to airtight section of thick bamboo (402) left side outer wall.

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