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Cascade direct heat exchange hydrothermal reaction device

A technology of hydrothermal reactor and thermal reaction, which is applied in direct heating dry distillation, combined direct and indirect heating dry distillation, heat treatment, etc., to achieve the effect of simplifying the heat exchange structure and shortening the heat exchange time

Pending Publication Date: 2021-03-12
北京市科学技术研究院资源环境研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of indirect heat exchange is that the components in each reactor are not affected by the outside world, but the disadvantage is that factors such as temperature difference, heat exchange area, and heat exchange time need to be considered, and there are many constraints in actual engineering.

Method used

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  • Cascade direct heat exchange hydrothermal reaction device

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Embodiment

[0016] Such as figure 1 The shown cascade direct heat exchange thermal hydrolysis reaction device is composed of five hot water reactors 1 and circulation pump 2; left valve 1-1 and right valve 1-2 are installed on the said hot water reactor 1, so The left valve 1-1 is connected with the left tee 1-3, the right valve 1-2 is connected with the right tee 1-4, and the left tee 1-3 and the right tee 1-4 are connected There are isolation valves 1-5; the hydrothermal reactor 1 is connected with the circulation pump 2 in the following way: the outlet of the circulation pump 2 is connected with the left tee 1-3 on the first hydrothermal reactor 1, and the first hydrothermal reaction The right tee 1-4 on the device 1 is connected with the left tee 1-3 on the second hydrothermal reactor 1, and the right tee 1-4 on the second hydrothermal reactor 1 is connected with the third water The left tee 1-3 on the thermal reactor 1 is connected, and so on, until all five reactors are connected; ...

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Abstract

The invention discloses a cascade direct heat exchange hydrothermal reaction device. The device consists of more than three hydrothermal reactors and a circulating pump, wherein a left valve and a right valve are mounted on the hydrothermal reactor, the left valve is connected with a left tee joint, the right valve is connected with a right tee joint, and a partition valve is connected between theleft tee joint and the right tee joint; the hydrothermal reactors are connected with the circulating pump in the following manner: an outlet of the circulating pump is connected with the left tee joint on the first hydrothermal reactor, the right tee joint on the first hydrothermal reactor is connected with the left tee joint on the second hydrothermal reactor, the right tee joint on the second hydrothermal reactor is connected with the left tee joint on the third hydrothermal reactor, and so on, and the operation is repeated until all the reactors are connected; the right tee joint on the last hydrothermal reactor is connected with the inlet of the circulating pump; each hydrothermal reactor is provided with a heating device; the device is characterized in that two filters for solid-liquid separation are mounted in each hydrothermal reactor, one of the filters is connected with the left valve through a pipeline, and the other filter is connected with the right valve through a pipeline.

Description

technical field [0001] The invention relates to a hydrothermal reaction device, in particular to a device for preparing biochar by a hydrothermal method. Background technique [0002] Patent CN 106830603B discloses a cascade heat exchange method, but its device is an indirect heat exchange device. The advantage of indirect heat exchange is that the components in each reactor are not affected by the outside world, but the disadvantage is that factors such as temperature difference, heat exchange area, and heat exchange time need to be considered, and there are many constraints in actual engineering. [0003] For some products that are easy to separate from solids and liquids and whose reaction products are not sensitive to changes in the components in the reactor (such as hydrothermal biochar from garden waste), direct heat exchange is easier to achieve. This patent improves the patent CN 106830603B, and intends to realize heat recovery by means of direct heat exchange. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J6/00B01J3/04C10B53/02C10B49/14C10B51/00
CPCB01J6/00B01J3/04C10B53/02C10B49/14C10B51/00Y02E50/10
Inventor 张建中张翘楚张成梁姚晶晶郝润琴
Owner 北京市科学技术研究院资源环境研究所
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