Hot and humid gas energy recovery high-temperature heat production system

A technology of energy recovery and thermal system, which is applied in the direction of steam generation using heat carrier, climate sustainability, energy-saving heating/cooling, etc. The effect of thermal quality, convenient application and low energy loss

Active Publication Date: 2014-03-26
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent only recovers a small amount of latent heat in the exhaust gas, and the temperature rise of the hot air is not large

Method used

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  • Hot and humid gas energy recovery high-temperature heat production system
  • Hot and humid gas energy recovery high-temperature heat production system
  • Hot and humid gas energy recovery high-temperature heat production system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the hot and humid gas energy recovery high-temperature heat generation system in Example 1 includes a primary absorber 1, a secondary absorber 2, a primary generator 3, a secondary generator 4, a first absorption heat exchange tube 5, a second Two absorption heat exchange pipes 6 , a first heat supply pipe 7 , a second heat supply pipe 8 , a fan 9 , a first solution pump 10 , a second solution pump 11 , a first throttle valve 12 and a second throttle valve 13 .

[0047] The liquid absorbent used in the system is lithium bromide aqueous solution, and the working fluid in the absorption heat exchange tube is water; the external heat source of the heat supply tube is steam; , Circulating flow in the secondary generator 4. The gas passes through the fan 14, the gas inlet of the primary absorber 1, and the gas outlet of the primary absorber 1 to complete the gas circuit. The first heat supply pipe 7 and the second heat supply pipe 8 provide heat ...

Embodiment 2

[0049] Such as figure 2 As shown, the hot and humid gas energy recovery high-temperature heat generation system in Example 2 includes a primary absorber 1, a secondary absorber 2, a primary generator 3, a secondary generator 4, a first absorption heat exchange tube 5, a second Two absorption heat exchange pipes 6, a first heat supply pipe 7, a second heat supply pipe 8, a fan 9, a first solution pump 10, a second solution pump 11, a first throttle valve 12, a second throttle valve 13 and Solution heat exchanger 14. The solution heat exchanger 14 includes a first heat exchange pipeline (low temperature pipeline) and a second heat exchange pipeline (high temperature pipeline).

[0050] The liquid absorbent used in the system is lithium bromide aqueous solution, and the working fluid in the absorption heat exchange tube is water; the external heat source of the heat supply tube is steam; , Circulating flow in the secondary generator 4. The gas passes through the fan 14, the g...

Embodiment 3

[0052] Such as image 3 As shown, the hot and humid gas energy recovery high-temperature heat production system in Example 3 includes a primary absorber 1, a secondary absorber 2, a primary generator 3, a secondary generator 4, a first absorption heat exchange tube 5, a second Two absorption heat exchange pipes 6, a first heat supply pipe 7, a second heat supply pipe 8, a fan 9, a first solution pump 10, a second solution pump 11, a first throttle valve 12, a second throttle valve 13 and Solution heat exchanger 14. The solution heat exchanger includes a first heat exchange line (also known as a low temperature line) and a second heat exchange line (also known as a high temperature line). The difference between this embodiment and the system of Embodiment 2 is that the arrangement position of the solution heat exchanger 14 is different. In this embodiment, the liquid absorbent outlet of the secondary absorber 2 is connected with the liquid absorbent inlet of the primary genera...

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Abstract

The invention discloses a hot and humid gas energy recovery high-temperature heat production system. The hot and humid gas energy recovery high-temperature heat production system is characterized by comprising a first-stage absorber, a second-stage absorber, a first-stage generator and a second-stage generator; absorption heat exchange pipes are arranged inside the first-stage absorber and the second-stage absorber; heat supplying pipes are arranged inside the first-stage generator and the second-stage generator; a liquid absorbent outlet of the first-stage absorber is connected with a liquid absorbent inlet of the second-stage absorber, a liquid absorbent outlet of second-stage absorber is connected with a liquid absorbent inlet of the first-stage generator, a liquid absorbent outlet of the first-stage generator is connected with a liquid absorbent inlet of the second-stage generator, and a liquid absorbent outlet of the second-stage generator is connected with a liquid absorbent inlet of the first-stage absorber; besides, the second-stage absorber is communicated with the second-stage generator through a steam pipeline so that the second-stage generator can convey steam to the second-stage absorber; the first-stage generator is provided with a steam outlet which conveys steam outward; the first-stage absorber is provided with a hot and humid gas inlet and a hot and humid gas outlet. According to the hot and humid gas energy recovery high-temperature heat production system, a liquid absorbent is used for absorbing the steam in humid and hot waste gas, and the steam is converted into steam at a high temperature and high pressure to be used in the industrial production process.

Description

technical field [0001] The invention belongs to the field of waste heat recovery, and in particular relates to a high-temperature heat generation system for energy recovery of hot and humid gas. Background technique [0002] The industrial field creates huge wealth for the society and consumes a lot of energy at the same time. Therefore, it is particularly important to improve energy utilization efficiency and reduce energy consumption per unit of production capacity. A large amount of industrial waste gas is often produced in the production process of food processing, printing and dyeing, papermaking, wood, chemical, pharmaceutical and other industries. Generally speaking, the temperature of these waste gases is relatively low, between 60 ° C and 200 ° C, but contains The amount is high, and the amount of latent heat contained is enormous. If it is directly discharged into the atmosphere, it will waste a lot of energy and pollute the environment. The traditional method of...

Claims

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Application Information

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IPC IPC(8): F22B1/18F25B15/02
CPCY02B30/625
Inventor 陈光明叶碧翠刘骏郑皎
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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