CN214270769U - Acetylene generator - Google Patents

Abstract

The utility model provides an acetylene generator, spray including contact reaction jar, grid board, water-sealed tank, moisturizing. The grid plate sets up in the contact retort, and the bottom of contact retort is provided with carbide slag thick liquid discharging pipe, and the top is provided with crude acetylene gas discharging pipe, and crude acetylene gas discharging pipe is connected to the water-sealed tank, and the crude acetylene that carbide and water reaction generated is discharged through the water-sealed tank to guarantee safety. The water replenishing spray is arranged in the contact reaction tank and comprises a water replenishing pipe, a spray head and a blocking cap, the spray head is connected with the water replenishing pipe and arranged above the grid plate, and the blocking cap is arranged on the spray head and used for preventing calcium carbide from falling into the spray head. At reaction later stage each time, the carbide slag slurry blocks up the sieve mesh of grid plate, and when carbide and water contact reaction rate slowed down, directly drum into water on the carbide of grid plate top through the moisturizing sprays, promotes carbide and water reaction, improves the reaction rate in acetylene preparation later stage, conveniently controls the process of carbide and water contact reaction preparation acetylene, reduces the safety risk.

Description

Acetylene generator

Technical Field

The utility model belongs to the technical field of the acetylene chemical industry, especially, relate to an acetylene generator.

Background

Acetylene is an important raw material for organic synthesis and is used for preparing acetaldehyde, propiolic alcohol, 1, 4-butynediol, 1, 4-butanediol, butadiene, isoprene, vinyl chloride, vinylidene chloride and the like. Generally, acetylene is generated by contact reaction of calcium carbide and water in an acetylene generator, and is mostly a batch reaction process. A grid plate is arranged in an existing acetylene generator, calcium carbide is placed on the grid plate, water enters from the lower portion of the grid plate and reacts with the calcium carbide in a contact mode, and a large amount of calcium carbide slag slurry is generated in the reaction process. In the later stage of the reaction, the carbide slag slurry can be adhered to the mesh openings of the grating plate, so that the contact area of water and the carbide is reduced, and the reaction rate is slowed down.

Disclosure of Invention

There is a need for an acetylene generator.

An acetylene generator comprises a contact reaction tank, a grating plate, a water seal tank and a water replenishing spray; the grille plate is arranged in the contact reaction tank, the contact reaction tank is divided into a calcium carbide cavity at the upper part and a water cavity at the lower part, a calcium carbide slurry discharging pipe is arranged at the bottom of the contact reaction tank, a crude acetylene gas discharging pipe is arranged at the top of the contact reaction tank, the water seal tank is connected with the crude acetylene gas discharging pipe, and crude acetylene generated by reaction of calcium carbide and water is discharged through the water seal tank so as to ensure safety; the moisturizing sprays and sets up in contact reacting tank, including moisturizing pipe, shower head, block the cap, the moisturizing pipe is connected to the shower head, and sets up in the grid board top, blocks that the cap cover is established on the shower head, is used for preventing that the carbide from falling into in the shower head.

Preferably, the blocking cap is conical, and the radius of the bottom of the blocking cap is larger than that of the spray header.

Preferably, an overflow pipe is arranged on the contact reaction tank at a position close to the upper part of the grid plate.

Preferably, the acetylene generator further comprises a water feed pipe flanged to a lower portion of the contact reaction tank.

Preferably, set up the moisturizing branch pipe on the water inlet pipe, moisturizing branch union coupling moisturizing pipe sets up the trip valve on the moisturizing branch pipe.

Preferably, the water replenishing branch pipe is further provided with a flow regulating valve.

Preferably, the water feeding pipe is also provided with a washing branch pipe, and the washing branch pipe is communicated with the carbide slag slurry discharging pipe.

The utility model discloses in, set up the moisturizing and spray above the grid board of contact reaction jar, at reaction later stage each time, carbide slag slurry blocks up the sieve mesh of grid board, and when carbide and water contact reaction rate slowed down, directly drum into water on the carbide of grid board top through the moisturizing sprays, promotes carbide and water reaction, improves the reaction rate in acetylene preparation later stage, conveniently controls the process of carbide and water contact reaction preparation acetylene, reduces the safety risk.

Drawings

FIG. 1 is a schematic diagram of the structure of an acetylene generator.

In the figure: the device comprises a contact reaction tank 10, a calcium carbide cavity 11, a water cavity 12, a calcium carbide slurry discharge pipe 13, a crude acetylene gas discharge pipe 14, an overflow pipe 15, a grating plate 20, a water seal tank 30, a water replenishing spray 40, a water replenishing pipe 41, a spray header 42, a blocking cap 43, a water feed pipe 50, a water replenishing branch pipe 51, a cut-off valve 52, a flow regulating valve 53 and a flushing branch pipe 54.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1, the embodiment of the present invention provides an acetylene generator, which includes a contact reaction tank 10, a grid plate 20, a water-sealed tank 30, and a water-replenishing spray 40. Grid plate 20 sets up in contact retort 10, and with contact retort 10 divide into the carbide chamber 11 on upper portion and the water cavity 12 of lower part, the bottom of contact retort 10 is provided with carbide sediment thick liquid discharging pipe 13, and the top is provided with crude acetylene gas discharging pipe 14, water-sealed tank 30 connects crude acetylene gas discharging pipe 14, and the crude acetylene that carbide and water reaction generated is discharged through water-sealed tank 30 to guarantee safety. Moisturizing sprays 40 and sets up in contact retort 10, including moisturizing pipe 41, shower head 42, block cap 43, moisturizing pipe 41 is connected to shower head 42, and sets up in grid plate 20 top, blocks that cap 43 covers establishes on shower head 42 for prevent that the carbide from falling into in the shower head 42.

In the scheme, the calcium carbide is arranged above the grid plate 20, water enters from the bottom of the contact reaction tank 10 and reacts with the calcium carbide to generate acetylene gas and generate calcium carbide slurry. Acetylene gas is discharged from a crude acetylene gas discharge pipe 14 to an acetylene storage tank through a water seal tank 30, and carbide slag slurry is discharged from a carbide slag slurry discharge pipe 13 to a slag pool. Carbide and water contact reaction later stage, the carbide slag thick liquid glues the screen hole department at grid plate 20, lead to the screen hole aperture to diminish, water and carbide area of contact diminish, lead to the part to sink easily, the local reaction is slow or overall reaction rate is slow, at this moment, make up water on to grid plate 20 through moisturizing pipe 41, the moisturizing has certain pressure, block under the effect of blocking of cap 43, by shower head 42 upper portion to diffusion all around, with remaining carbide contact reaction in grid plate 20 top, thereby improve the reaction efficiency in reaction later stage, the accurate control reaction termination point of being convenient for, safety risk is reduced.

Further, the blocking cap 43 is tapered, and the radius of the bottom of the blocking cap 43 is larger than that of the shower head 42. In the calcium carbide feeding process, under the guiding and dispersing action of the blocking cap 43, the calcium carbide is distributed around the spray header 42 and cannot enter the spray header 42 and the water replenishing pipe 41.

Further, an overflow pipe 15 is provided in the contact reaction tank 10 at a position above and near the grid plate 20. Overflow pipe 15 sets up in safe water level department, and after the water level rose to safe water level, water or carbide slag thick liquid overflowed to the safety tank from overflow pipe 15 to guarantee reaction process's security prevents that the water level from too high, leads to contact retort 10 internal pressure increase, causes the incident.

Further, the acetylene generator further comprises a water feed pipe 50, and the water feed pipe 50 is flanged to the lower portion of the contact reaction tank 10.

Furthermore, a water replenishing branch pipe 51 is arranged on the water feeding pipe 50, the water replenishing branch pipe 51 is connected with the water replenishing pipe 41, and a stop valve 52 is arranged on the water replenishing branch pipe 51.

Further, a flow regulating valve 53 is further provided on the water replenishing branch pipe 51.

In this scheme, water gets into contact retort 10 via water inlet pipe 50 in, makes the water level rise gradually to grid plate 20 department, with the carbide contact reaction of grid plate 20 top. The carbide slag slurry generated by the reaction is discharged to a slag pool through a carbide slag slurry discharging pipe 13. In the later reaction stage, influenced by the carbide slag slurry, the contact reaction rate of water and the carbide becomes slow, the cut-off valve 52 is opened, the flow and the pressure of the water replenishing branch pipe 51 are adjusted through the flow adjusting valve 53, water is replenished to the spray header 42 above the grating plate 20, the reaction is promoted to be carried out, and the reaction process is accelerated.

Further, a flushing branch pipe 54 is further arranged on the water feeding pipe 50, and the flushing branch pipe 54 is communicated with the carbide slag slurry discharging pipe 13. When the carbide slag slurry discharging pipe 13 is blocked, water is introduced into the contact reaction tank 10 through the flushing branch pipe 54, the carbide slag slurry discharging pipe 13 is back flushed, and smooth slag discharging of the carbide slag slurry discharging pipe 13 is guaranteed.

The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.

The above disclosure is only illustrative of the preferred embodiments of the present invention, which should not be taken as limiting the scope of the invention, but rather the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or part of the above-described embodiments may be implemented and equivalents thereof may be made to the claims of the present invention while remaining within the scope of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. An acetylene generator characterized by: comprises a contact reaction tank, a grating plate, a water seal tank and water replenishing spray; the grille plate is arranged in the contact reaction tank, the contact reaction tank is divided into a calcium carbide cavity at the upper part and a water cavity at the lower part, a calcium carbide slurry discharging pipe is arranged at the bottom of the contact reaction tank, a crude acetylene gas discharging pipe is arranged at the top of the contact reaction tank, the water seal tank is connected with the crude acetylene gas discharging pipe, and crude acetylene generated by reaction of calcium carbide and water is discharged through the water seal tank so as to ensure safety; the moisturizing sprays and sets up in contact reacting tank, including moisturizing pipe, shower head, block the cap, the moisturizing pipe is connected to the shower head, and sets up in the grid board top, blocks that the cap cover is established on the shower head, is used for preventing that the carbide from falling into in the shower head.

2. The acetylene generator of claim 1 wherein the blocking cap is conical and the radius of the bottom of the blocking cap is greater than the radius of the showerhead.

3. The acetylene generator according to claim 2, wherein an overflow pipe is provided in the contact reaction tank at a position near an upper portion of the grid plate.

4. The acetylene generator of claim 3 further comprising a water feed pipe flanged to contact a lower portion of the reaction tank.

5. The acetylene generator according to claim 4, wherein the water feed pipe is provided with a water replenishing branch pipe, the water replenishing branch pipe is connected with a water replenishing pipe, and the water replenishing branch pipe is provided with a cut-off valve.

6. The acetylene generator according to claim 5, wherein a flow regulating valve is further provided on the water-replenishing branch pipe.

7. The acetylene generator according to claim 6, wherein the water feed pipe is further provided with a flushing branch pipe, and the flushing branch pipe is communicated with the carbide slag slurry discharge pipe.

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