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A reactor waste heat boiler steam superheater three-in-one device

A waste heat boiler and reactor technology, which is applied to steam superheating, steam generating devices, heating devices, etc., can solve the problems of large temperature difference between tube sheets, large thermal stress, deformation and damage, etc., so as to improve the heat recovery rate and reduce the floor space. , The effect of convenient inspection and maintenance

Inactive Publication Date: 2011-11-30
HUNAN ANCHUN ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature difference between the tube sheet is large, the thermal stress is large and the deformation is damaged

Method used

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  • A reactor waste heat boiler steam superheater three-in-one device
  • A reactor waste heat boiler steam superheater three-in-one device
  • A reactor waste heat boiler steam superheater three-in-one device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: as figure 1As shown, the reactor waste heat boiler steam superheater three-in-one device includes a reactor 23 and a waste heat boiler shell 19; one end of the waste heat boiler shell 19 is provided with a high-pressure section, and the high-pressure section includes a high-pressure flange at the outer end The high-pressure cylinder 2 of the cover 8, the other end of the high-pressure cylinder 2 is a thick tube plate 11 adjacent to the shell 19 of the waste heat boiler; The gas distribution box cover on one side communicates with the cavity of the gas distribution box 6, and the other end of the connecting pipe 7 communicates with the reaction gas outlet of the reactor 23, and the other side of the gas distribution box 6 is a thin tube sheet 5; the thin tube sheet 5 and the thick tube plate 11 at the other end of the high-pressure cylinder 2, the cavity of the high-pressure cylinder is a cold air chamber 27, and the cold air chamber 27 is provided with a r...

Embodiment 2

[0045] Embodiment 2: The structure of the device is the same as in Embodiment 1. It is used in the ammonia synthesis industry. The outlet gas temperature of the synthesis tower (reactor 23) is 455-460 ° C. It enters the gas distribution box 6 from the high-pressure end of the device of the present invention, and turns to enter the interior. Double casing 13, such as figure 1 Shown from left to right, turn to the right end, enter outer sleeve 12, in this outer sleeve as figure 1 Shown from right to left, arrive at the cold air chamber 27 at the left end, the temperature drops to 270~280°C, and then send out the device from the gas outlet 1 at the lower end of the cold air chamber 27.

[0046] The preheated desalted water enters the waste heat boiler (saturated section 28) from the water inlet 3, and is heated to generate saturated steam with a pressure of 3.9-5.0Mpa and a temperature of 250-265°C, which rises through the defoaming screen 15 and enters the right-hand overheating...

Embodiment 3

[0050] Embodiment 3: The device structure is the same as that in Embodiment 1. It is used in the ammonia synthesis industry. The outlet gas temperature of the synthesis tower (reactor 23) is 370-395 ° C. It enters the gas distribution box 6 from the high-pressure end of the device of the present invention, and turns to enter the interior. Double casing 13, such as figure 1 Shown from left to right, turn to the right end, enter outer sleeve 12, in this outer sleeve as figure 1 Shown from right to left, enter the cold air chamber 27 at the left end, the temperature drops to ~270°C, and then send out the device from the gas outlet 1 at the lower end of the cold air chamber 27.

[0051] The preheated desalted water enters the waste heat boiler (saturated section 28) from the water inlet 3, and is heated to generate saturated steam with a pressure of 3.9Mpa and a temperature of 250°C, which rises through the defoaming screen 15 and enters the overheating section 29 at the right end...

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Abstract

A reactor waste heat boiler steam superheater three-in-one device is a chemical high-temperature reaction heat recovery and utilization device; it includes a high-pressure cylinder, a saturation section and a superheating section in the waste heat boiler shell. The saturated section has a water inlet, and the superheated section has a superheated steam outlet; the saturated section and the superheated section are connected through a demister wire mesh, and there is a gas distribution box and a cold air chamber in the high-pressure cylinder at one end of the waste heat boiler shell, and the reaction hot gas enters the three sets through the gas distribution box. After the tube is cooled, it gathers at the outlet of the cold air chamber; the longer three sleeves pass through the saturated section and extend to the superheated section, and the three shorter sleeves are located in the saturated section; one end of the outer sleeve is welded to the thick tube plate at the end of the high pressure section; through a special structure to avoid The temperature difference of the same tube plate will cause temperature difference stress and cause deformation and damage; the device can significantly save valuable materials and investment, and can improve heat recovery rate.

Description

technical field [0001] The invention relates to a high-temperature reaction heat recycling device in the chemical industry; furthermore, it refers to a three-in-one device of a reactor, a waste heat boiler and a steam superheater, which is applied to the recycling and utilization of high-temperature reaction heat in petrochemical, coal chemical, and synthetic industries. Background technique [0002] The exothermic chemical reactor produces high-temperature reaction gas. The waste heat boiler is a heat exchange device that uses the heat of chemical reaction to heat water to generate saturated steam. In order to improve the application efficiency of steam, the saturated steam should be reheated to For superheated steam, a steam superheater is also required, which requires a long high-temperature connecting pipe, occupies the ground area and space, and consumes a lot of precious metal materials for the three separate equipment, making it difficult to control. [0003] The trad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B33/18F22B1/16F22G1/14F24J1/00F24V30/00
Inventor 谢定中
Owner HUNAN ANCHUN ADVANCED TECH
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