A multi-layer hot water storage tank, a thermal energy recovery and reuse system and a reuse method thereof

A technology for hot water storage tanks and heat energy recovery, which is applied in solar heating systems, solar thermal energy, and non-combustion exothermic chemical reactions to generate heat. It can solve the impact of ammonia recovery efficiency, failure to achieve temperature control, and affect product quality. and other issues to achieve the effect of reducing energy consumption, reducing energy consumption, and reducing production energy consumption

Active Publication Date: 2022-02-25
上海科德实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

and so on, the energy loss due to individual reactions is very considerable
Moreover, more importantly, sometimes the temperature control does not meet the temperature required by the process, which affects the quality of the product or causes environmental pollution (such as ammonia recovery, if the temperature is not low enough, the ammonia recovery efficiency will be affected, and it will be discharged to pollute the environment)

Method used

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  • A multi-layer hot water storage tank, a thermal energy recovery and reuse system and a reuse method thereof
  • A multi-layer hot water storage tank, a thermal energy recovery and reuse system and a reuse method thereof
  • A multi-layer hot water storage tank, a thermal energy recovery and reuse system and a reuse method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Heating is an indispensable process in chemical plants and traditional Chinese medicine plants. In the prior art, most of the reaction kettles are heated by stirring jacketed steam. The transfer of heat from the kettle wall to the reaction solution is contact transfer, while the inside of the reaction solution is agitation transfer. In fact, due to heat transfer, the temperature of the reaction solution on the wall of the kettle and the intermediate reaction solution may have a difference of 7-8 °C. And it is often much higher at the upper edge of the reaction liquid, which is because the temperature of the steam is too high, so that the local temperature of the kettle wall is too high. Such uneven temperature often has adverse effects on the reaction, and the quality and yield of the product are reduced. However, the aforementioned problems can be avoided by using the solution provided by the present invention. The system and method of the present invention can be app...

Embodiment 2

[0100]Concentration of aqueous solutions in traditional Chinese medicine factories and chemical factories is the most commonly used process, such as multiple effect evaporators. However, some chemical components are thermally unstable, so it is not suitable to be heated at high temperature for a long time. It is difficult to control the temperature of heating with pressure steam, and the product quality cannot be guaranteed. Adopt recovery system of the present invention, can solve this problem. If these components can withstand 65°C, vacuum distillation can be used. Since the boiling point of water at 25kPa is 65°C, the general steaming process can use a WLW-50 vacuum pump to pump the vacuum below 25kPa and choose suitable hot water. Just be heated to more than 65 ℃, and the water that comes out passes into collection water tank 11. This eliminates the need for pressurized steam. If the chemical composition has a lower temperature resistance, it can be concentrated as long ...

Embodiment 3

[0102] Extraction is a common purification process in chemical and pharmaceutical factories. Organic solvents in extraction include: halogenated hydrocarbons such as chloroform, dichloromethane, etc., aromatic hydrocarbons such as benzene, etc., aliphatic hydrocarbons such as kerosene, petroleum ether, etc., esters such as butyl acetate , ethyl acetate, etc. The organic phase after extraction needs to be distilled to remove the solvent, and the distillation process of the solvent with a boiling point lower than 100° C. can use the thermal energy recovery and reuse system and method provided by the present invention. Taking dichloromethane as an example, dichloromethane should be distilled off after extraction. The boiling point is 39.75°C. Distillation can be heated with water at 50-60°C. Use the water of higher temperature instead, as, the hot water that flows out with intermediate tank 2.

[0103] Water exiting the jacket in the endothermic process plant 12 can be returned ...

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PUM

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Abstract

The invention discloses a multi-layer hot water storage tank, which comprises: an inner tank, at least one middle tank, and an outer tank nested sequentially from inside to outside; water outlets are arranged at the bottom of the inner tank, the middle tank and the outer tank; The inner tank, the middle tank and the outer tank are separated by a heat insulation layer; the inner tank, the middle tank and the outer tank are all equipped with temperature sensors; the through holes on the tank walls of the inner tank and the middle tank make the water in the tank communicate; The tank is provided with a heating pipe; the outer tank is provided with a water inlet. The invention also discloses a heat energy recovery and reuse system and a reuse method thereof, which are used to recover and reuse heat energy in the heat-absorbing process and / or exothermic process. The multi-layer hot water storage tank is used as a heat source, and the waste heat after heating is returned to the collection water tank; the multi-layer hot water storage tank replenishes water from the collection water tank; the heat generated by the exothermic process can also be used to heat the clean water for production, and the collected water is injected into the preheated clean water storage tank for production use , to reduce energy consumption; through these ways to manage the energy and make comprehensive use of it, the total energy consumption can be greatly reduced, which is suitable for a wide range of applications.

Description

technical field [0001] The invention belongs to the technical field of energy recovery and reuse, and in particular relates to a multilayer hot water storage tank, a heat energy recovery and reuse system and a reuse method thereof. Background technique [0002] A chemical synthesis pharmaceutical factory or traditional Chinese medicine pharmaceutical factory with multiple products consumes a lot of energy in production, a large amount of which is heat energy. For example, heating is required for chemical reactions, as well as distillation of liquids, extraction of traditional Chinese medicine components, concentration of aqueous solutions, and evaporation of solvents. Processes such as spraying and recycling of aggressive chemicals also require cooling. Also, some product drying processes (such as fluidized bed dryers, spray dryers, etc.) produce a large amount of high-temperature waste gas, and some processes release a lot of high-temperature waste water (such as the bath ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H1/20F24H9/00F24H9/1818F24H15/248F24S20/40F24V30/00F28D21/00
CPCF24H1/201F24H9/0005F24H9/1818F24H9/2021F28D21/0001
Inventor 陆长德王科炜
Owner 上海科德实业有限公司
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