Solid-solid heat exchange device starting protection device, using method thereof and heat exchange device

A technology of protection device and heat exchange device, which is applied in the field of heat exchange equipment to achieve the effects of cost reduction, reduction of mechanical failure points, and reduction of energy consumption

Pending Publication Date: 2021-02-12
SICHUAN CHUANGUO BOILER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The present invention aims to provide a solid-solid heat exchange device startup protection device and its use method and heat exchange device. The technical problem to be solved is that when the existing solid-solid heat exchange high-temperature waste heat recovery boiler processes high-temperature materials:

Method used

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  • Solid-solid heat exchange device starting protection device, using method thereof and heat exchange device
  • Solid-solid heat exchange device starting protection device, using method thereof and heat exchange device
  • Solid-solid heat exchange device starting protection device, using method thereof and heat exchange device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Example 1 - Solid-solid heat exchange device startup protection device

[0043] Such as figure 2 As shown, the solid-solid heat exchange device starts the protection device, including the protection device heating pipe 3a, superheated steam introduction pipe 3b, mixing header 3c, evaporating heating surface tube outlet 3e and evaporating heating surface tube inlet 3f;

[0044] The protection device heating pipe 3a is arranged in the mixing header 3c, and one end of the protection device heating pipe 3a is connected to the superheated steam introduction pipe 3b outside the mixing header 3c, and several small holes for discharging steam are uniformly and densely distributed on the protection device heating pipe 3a.

[0045] It can be understood that, as a reasonable expansion, the small holes do not have to be arranged uniformly and / or densely, and the uniformly densely arranged small holes are for heating the water in the mixing header 3c as efficiently as possible and ...

Embodiment 2

[0055] Embodiment 2 - heat exchange device

[0056] The present invention also provides a heat exchange device, including a primary evaporator 1 and a secondary evaporator 4, and adopts the solid-solid heat exchange device startup protection device as described in Example 1, the primary evaporator 1 The inlet is connected to the outlet 3e of the evaporation heating surface tube of the solid-solid heat exchange device startup protection device, and the outlet of the secondary evaporator 4 is connected to the evaporation heating surface tube inlet 3f of the solid-solid heat exchange device startup protection device.

[0057] Such as image 3 As shown, an example of a heat exchange device applying a solid-solid heat exchange device to start a protection device is described in detail.

[0058] In this example, the mixing header 3c of the starting protection device of the solid-solid heat exchange device replaces the primary evaporator outlet header 1b of the primary evaporator 1 ...

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Abstract

The invention discloses a solid-solid heat exchange device starting protection device. The solid-solid heat exchange device starting protection device comprises a protection device heating pipe, a superheated steam introducing pipe, a mixing header, an evaporation heating surface pipe outlet and an evaporation heating surface pipe inlet, wherein the protection device heating pipe is arranged in the mixing header, one end of the protection device heating pipe is connected with the superheated steam introducing pipe outside the mixing header, and at least one small hole for discharging steam isformed in the protection device heating pipe; and the mixing header is provided with the evaporation heating surface pipe outlet and the evaporation heating surface pipe inlet, the evaporation heatingsurface pipe outlet is formed above the mixing header, and the evaporation heating surface pipe inlet is formed below the mixing header. The solid-solid heat exchange device starting protection device is simple in structure and reliable in performance, pipe explosion is avoided, the cost is greatly reduced, the energy consumption is reduced, and the number of mechanical fault points is also reduced. The invention further provides a using method of the solid-solid heat exchange device starting protection device. Before starting, high-temperature steam is introduced from the side to establish heat exchanger water circulation. The method is simple, feasible, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a device for protecting the heat exchange device and the heat exchange device when the heat exchange device is started. Background technique [0002] At present, the domestic cooling treatment process for high-temperature solid bulk and granular materials (such as high-temperature sintered ore and pelletized mineral materials, hereinafter referred to as "high-temperature materials") mainly adopts belt-type air coolers, ring-type air coolers or Vertical air cooling device for cooling. [0003] The dust-laden hot flue gas that cools the high-temperature material enters the waste heat boiler to generate hot water or low-parameter steam. The heat recovery system is complicated, the air leakage rate is high, the sensible heat recovery efficiency of the high-temperature material is low, and the operation and maintenance costs are high. [0004] In view of the above sit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F22B1/18F22B31/08F22G7/00
CPCF22B1/18F22B31/08F22G7/00F27D17/004Y02P10/25
Inventor 李枫弋治军孙刚张旭海汪庆刘仕杰徐定恒
Owner SICHUAN CHUANGUO BOILER
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