SU1518349A1 - Reaction chamber closure - Google Patents

Abstract

The invention relates to the oil refining and petrochemical industries, in particular to the equipment for servicing the bottom discharge hatch of coke oven chambers of delayed coking plants. The purpose of the invention is to increase operational manufacturability. The problem to be solved by the invention is to create a gate of the coke oven chamber, superior in its characteristics to the best technical solutions, in particular speed, labor safety, reliability and mechanization of labor-intensive work. This is achieved by the fact that the locking element is made rotatable in the form of intersecting sealing and unloading cylinders, and the seal of the bolt with the flange of the unloading hatch is carried out due to thermal lengthening and shortening of the mounting bracket of the rotary locking element. 4 hp ff, 7 ill.

Description

The invention relates to the oil refining and petrochemical industry, in particular to the equipment for servicing the bottom unloading hatch of coke oven chambers of delayed coking units (UT), intended to open and close the bottom unloading hatch of the coke oven chamber and can be used during the operation of vessels operating under aggressive pressure. gas, vapor and liquids at elevated temperatures.

The purpose of the invention is to increase operational manufacturability.

FIG. 1 shows the shutter of the lower discharge door of the coke oven chamber, general view; in fig. 2 is a view A of FIG. one; in fig. 3 - section BB on

FIG. 1 (shutter in the closed position); in fig. 4 shows a section B-B in FIG. 3 (the shutter is in the Closed position; Fig. 5 is a section of D-D in Fig. 4 (the shutter is in the Open position; Fig. 6-; node 1 in Fig. 4 (the shutter seal assembly); Fig. 7 - shutter when supplied with a drive.

The shutter consists of the following main components and parts: the rotary-locking element 1 with spherical lids 2 and trunnions 3, supports 4, thermally extendable brackets 5, thermal insulation 6, an ultrasonic gasket 7, technological unions 8 and 9 for the supply - removal of heat- doagent.

Rotary-locking element 1 contains the discharge cylinder 10 and upsl

   with

long nvmnHflp, consisting of halves 11 and 12, welded along forming 10 and trunnions to the discharge cylinder 10. Spherical bolts 2 are welded into the working torps of the sealing cylinder, the free cavities of which are filled with heat 6. The working ends are offset relative to the axis of rotation of the trunnions by 1-3 mm. This creates a dexial necessary to compensate for the inaccuracies in the manufacture of the thickness of the gasket.

The shutter operates as follows. To open the shutter, the brackets 5 are heated by passing steam through their internal cavity. In this case, the gaskets and the gasket 7 moves away from the measured flange of the coke oven chamber, making it possible to turn the locking element to the desired position (Open or Closed). The gasket 7 is sealed with a coke oven flange when the brackets 5 are cooled, for example, by passing their internal chambers of cold water with lesers. In this case, the brackets 5 are shortened and the sealing gasket 7 is firmly clamped between the working ends of the rotary-locking element 1 and the flange of the coke oven chamber, ensuring the reliability and tightness of the connection.

Example. The length of the brackets is 4-5.m, when heated to 200 ° C (by passing steam), they are elongated by 8-10 mm. In this case, a maximum gap of 8-10 mm occurs between the sealing gasket 7 and the flange of the coke oven chamber, and taking into account the desaxial gap, the gap is 5-9 mm. This gap (5-9 mm) is quite enough to tear the spherical cover 2 from the coke array. At the same time, the shutter can be rotated freely around the axis manually or with the help of a mechanical drive shown in FIG. 7

The attainability of the goal of the invention is based on the following

making the pivot-locking element in the form of intersecting sealing and unloading cylinders simplifies the design and improves manufacturability, since the spherical surface is replaced with a cylindrical surface;

structural rigidity while reducing metal consumption both

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0

sintered by making the discharge cylinder solid, in the form of a pipe, and the sealing cylinder of two halves welded along the discharge cylinder forming to the outer wall of the discharge cylinder and plugged further from the ends, spherical caps welded to them;

the reduction of heat losses through the valve into the environment is provided by thermal insulation of its bottom, which also excludes the clogging of the valve to the product;

reduction of the coking cycle (time) is due to the possibility of combining the operation of preparing the gasket for work, or for rotary use directly on the operating coke oven chamber, since it has two working ends: one of which is inside the chamber, and the other outside, and the next cycle of coking has - 5 with the ability to turn the locking element previously free (outer) working end into the inside of the chamber;

Performing intersecting cylinders with a deaxial allows the cylinders to be moved to a working position more quickly. With their thermal elongation - shortening, the size of the deaxial of 1-3 mm is optimal for sealing metal gaskets with a thickness of 3-5 mm, since it allows to compensate for their solid inaccuracies of fabrication.

Technical and economic efficiency of the invention is to reduce the time for opening and closing the gate and the possibility of automating this process. With regard to delayed coking plants (UT) type 21-10 / 300, the economic effect will be more than 0.1 million.

0

five

0

five

rub. in year.

Claims (1)

1. A reaction chamber shutter containing a locking element disposed in the lower part, equipped with an opening mechanism thereof, and supports, in order to improve the operational technology, the locking element is designed as intersecting sealing and unloading cylinders and the opening mechanism is made in the form of terphig. Type A “F / YY AT 6 Yr Fml Compiled by L.Nechyporenko Editor N.Kishtulinets Tehred A. Kravchuk Order 6565/30 Circulation 446 BNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 4/5, Moscow, Zh-35, Raushsk nab. 113035 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 Proofreader M.Maksimishinets Subscription