SU1000731A1 - Heat exchanger - Google Patents

Description

(.54) HEAT EXCHANGER

The invention relates to heat exchanger designs and can be designed for the quenching of high-pressure, high-pressure gases, primarily in the production of synthetic ammonia, nitric acid, methanol, hydrogen and other chemical and petrochemical industries.

Heat exchangers are known for quenching high-temperature gas, containing a housing mounted on a support and filled with water, with a lid, nozzles for supplying and discharging water and a tubular serpentine bundle mounted in the housing connected to gas chambers located outside the housing 1.

The disadvantage of these devices is low reliability and poor repair, due to the fact that the walls of the gas chambers are not cooled, and the failed beam pipe cannot be repaired and replaced.

The closest to the proposed design and the effect achieved is a heat exchanger, containing a t a horizontal cylindrical body with a spherical lid, a box for distributing water with a muffled

one of its ends, placed in the crc, pushe / heat exchange pipes, placed inside the box, gas inlet and outlet pipes connected to pipes, water inlet and outlet pipes connected to the channel, and roller supports L 2 J.,

A disadvantage of the known heat exchanger is that, when otkania

10 caps need to cut the pipes for the supply and removal of gas. Since the pipes are made of thick-walled. high alloy steel, this operation complicates repairs and reduces the reliability of the device. In addition, krvi-. With a tube bundle significantly, t is more desirable than a shell, and therefore there are difficulties in carrying out roll back operations.

20

The purpose of the invention is to facilitate and simplify the installation and disassembly of the internal devices of the heat exchanger and increase its reliability:

The goal is achieved by

Claims (2)

25 that in the heat exchanger, the horizontal cylinder housing. with a spherical lid, a water distribution box with one end shut off, heat transfer tubes placed inside the housing, placed inside the duct, gas inlet and outlet nozzles connected to the pipes, water inlet and outlet nozzles connected to the duct and support rollers, duct made detachable of two parts, one of which with an open end fixed in the housing, and the other with a muffled end fixed on the lid and connected to the water inlet nozzle, the inlet and outlet connections of gas and water mounted on the lid. Additionally, the body is installed on Katkov supports, and the krym is fixedly mounted. FIG. 1 shows a heat exchange overall view, a longitudinal section in FIG. 2 -, section A-A in FIG. 1, the first embodiment of the box / in FIG. 3 - the same, the second option. The heat exchanger contains a horizontal cylindrical housing 1 with a spherical lid 2, a duct 3 for distributing water with its end 4 plugged in, placed in the housing, heat exchange tubes 5 placed inside the duct 3f by pipes 6 and 7 for gas inlet and outlet 5, nozzles 8 and 9 for water inlet and outlet, connected to box 3, and roller supports 1. Box 3 is made detachable from two parts 11 and 12, one of which 12 with an open end is fixed in the housing, and the other 11 with a muffled torus. tom 4 - "attached to the lid 2 and connected pipe 8 I of water, than straight tubes b, 7 and 8, 9 the input and output gas and water are installed on the cover 2. The housing is mounted on rollers 10 O supports, and the cover 2 is mounted fixedly on. The box 3 is formed by the walls of the cover 2 and the case 1 and adjacent to it by shaped partitions 13 and 14. The shaped partitions 13 and 14 can be made of various shapes: P-o different, V-shaped, arc-shaped, etc. Body 1 and the cover 2 is connected by studs 15. The heat exchanger operates as follows. High-pressure gas with high pressure through the pipe 6 is fed into the gas chamber 16, passes through the pipes 5, where it is quenched, goes into the gas chamber 17 and through the pipe 7 is removed from the device. The cooling water through the pipe 8 is supplied to the duct 3, passes through it and through the open end drains into the body of the housing 1 where it washes the pipes 5 and is discharged through the pipe 9. The device with the box 3 allows you to organize a good washing of the pipes 5 ts1 and eliminate stagnant zones, which increases the reliability of the device. When carrying out repairs, the studs 15 are removed, Case 1 on the Katkov supports 10 is rolled to the side, freeing access to pipes B for repairs. This does not require any additional preparatory operations, since the nozzles 6 and 7 for the supply and removal of gases and the nozzles 8 and 9 for the removal and supply of water remain together with the lid 2 in place. Technical and economic effect from the use of apparatuses, with a capacity of 230-250 thousand nm / h. gas by increasing the time between turnarounds, simplifying the overhaul, reducing the period and quality approximately amount to 120 thousand rubles. in year. Claim 1, A heat exchanger comprising a horizontal cylindrical body with a spherical lid, a water distribution box with one end shut off, placed in the body, heat exchange tubes placed inside the duct, gas inlet and outlet nozzles connected to the pipes, inlet and outlet nozzles water outlet connected to the duct and roller 6EU: 1e supports, characterized in that, in order to simplify and simplify the installation and dismantling of the internal devices of the heat exchanger and increase its reliability, the duct is made detachable and From two parts, one of which with an open end is fixed in the housing, and the other with a closed end is fixed on the roof and connected to the water inlet nozzle, the gas inlet and outlet nozzles being installed on the lid. 2, the heat exchanger according to claim 1, characterized in that the casing is mounted on Katkov supports and the lid is fixedly mounted. Sources of information taken into account in the examination 1, US Patent No. 3903628, K7I. 62-272, published. 1974. 2. US patent number 4166497, cl. 165-111, published. 1979., xJ- L t4. 9 2 A- A one t 13 (rig. 3