CN-224230813-U - System for high-pressure liquid heating medium utilizes upgrading unit and ORC to carry out waste heat comprehensive utilization

Abstract

The utility model discloses a system for comprehensively utilizing waste heat by utilizing a high-pressure liquid heating medium by utilizing a quality improving unit and ORC, which comprises a flash evaporation device, a steam stripping quality improving unit, an ORC generator set, a post-cooler and a condensate tank, wherein circulating cooling water is connected with the steam quality improving unit, the ORC generator set and the post-cooler through circulating cooling water supply pipelines, high-pressure condensate enters the flash evaporation device through high-pressure condensate pipelines, the top and the bottom of the flash evaporation device are respectively connected with the steam quality improving unit and the ORC generator set, the steam quality improving unit is connected with a high-pressure steam discharge pipeline, the ORC generator set is connected with the post-cooler, the post-cooler is connected with the condensate tank, and the condensate tank is connected with a hot water discharge pipeline of the ORC generator set. The method has the advantage that the efficient recovery of the waste heat resources is realized through the cooperative cooperation of the steam stripping mass unit and the ORC generator unit.

Inventors

• LIU HAOYU
• MU QINGHAO
• CAI WEI

Assignees

• 北京华航盛世能源技术有限公司

Dates

Publication Date

20260512

Application Date

20250514

Claims (7)

1. 1. A system for comprehensively utilizing waste heat by utilizing a high-pressure liquid heating medium by utilizing a quality improving unit and ORC is characterized by comprising a flash evaporation device, a steam stripping quality improving unit, an ORC generator set, a post-cooler and a condensate tank, wherein circulating cooling water is connected with the steam quality improving unit, the ORC generator set and the post-cooler through circulating cooling water supply pipelines, high-pressure condensate enters the flash evaporation device through high-pressure condensate pipelines, the top and the bottom of the flash evaporation device are respectively connected with the steam quality improving unit and the ORC generator set, the steam quality improving unit is connected with a high-pressure steam discharge pipeline, the ORC generator set is connected with the post-cooler, the post-cooler is connected with the condensate tank, and the condensate tank is connected with an ORC unit hot water discharge pipeline.
2. 2. The system for comprehensively utilizing waste heat by utilizing the high-pressure liquid heating medium and the ORC according to claim 1 is characterized by further comprising a steam backup cooler, wherein the top of the flash evaporation device is connected with the steam backup cooler, the steam backup cooler is connected with the steam upgrading unit, the high-pressure steam discharge pipeline is connected with the steam backup cooler, and a cooling water return pipeline is connected to the steam backup cooler.
3. 3. The system for comprehensively utilizing waste heat by utilizing the high-pressure liquid heating medium and the ORC according to claim 2 is characterized by further comprising a flash condensate backup cooler, wherein the bottom of the flash evaporation device is connected with the flash condensate backup cooler, the flash condensate backup cooler is connected with the ORC generator set, the flash condensate backup cooler is connected to a connecting pipeline between the ORC generator set and the aftercooler, and the flash condensate backup cooler is connected to a connecting pipeline between the flash condensate backup cooler and the steam stripping generator set.
4. 4. The system for comprehensively utilizing waste heat by utilizing the high-pressure liquid heating medium to upgrade a unit and an ORC according to claim 3, wherein the flash evaporation device comprises a main flash evaporation tank and a standby flash evaporation tank, the tops of the main flash evaporation tank and the standby flash evaporation tank are connected with the steam upgrading unit and the steam standby cooler, and the bottoms of the main flash evaporation tank and the standby flash evaporation tank are connected with the ORC generator unit and the flash evaporation condensate standby cooler.
5. 5. The system for comprehensively utilizing waste heat by utilizing the quality improving unit and the ORC for high-pressure liquid heating media according to claim 1 is characterized in that a circulating water pump is arranged on a circulating cooling water supply pipeline.
6. 6. The system for comprehensively utilizing waste heat by utilizing the high-pressure liquid heating medium and the ORC according to claim 1 is characterized in that a condensate pump is arranged on a hot water discharge pipeline of the ORC.
7. 7. The system for comprehensively utilizing waste heat by utilizing the high-pressure liquid heating medium and the ORC according to claim 4, wherein the tops of the main flash tank and the standby flash tank are respectively provided with a flash steam reserved throwing port.

Description

System for high-pressure liquid heating medium utilizes upgrading unit and ORC to carry out waste heat comprehensive utilization Technical Field The utility model relates to the technical field of vapor compression of low-temperature generators, in particular to a system for comprehensively utilizing waste heat by utilizing a high-pressure liquid heating medium by utilizing an upgrading unit and ORC. Background During industrial processes, large amounts of highly pressurized water (temperatures up to 100-150 ℃) are produced, these high Wen Ningshui containing considerable heat energy. However, the conventional process design is limited, and the high-quality waste heat cannot be effectively utilized, and only cooling treatment can be performed through equipment such as a cooling tower. This not only results in serious waste of energy, but also increases the operation load of the cooling system, resulting in a decrease in the energy utilization efficiency of the enterprise and an increase in the operation cost. Especially in the high energy consumption industries such as chemical industry, steel and the like, the energy waste phenomenon is more prominent, and the economic benefit and the energy efficiency index of enterprises are directly influenced. Disclosure of utility model The utility model aims to provide a high-pressure liquid heating medium utilization upgrading unit and an ORC waste heat comprehensive utilization system, so that the problems in the prior art are solved. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: A system for comprehensively utilizing waste heat by utilizing a high-pressure liquid heating medium by utilizing a quality improving unit and ORC comprises a flash evaporation device, a steam stripping quality unit, an ORC generator set, a post-cooler and a condensate tank, wherein circulating cooling water is connected with the steam quality improving unit, the ORC generator set and the post-cooler through circulating cooling water supply pipelines, high-pressure condensate enters the flash evaporation device through high-pressure condensate pipelines, the top and the bottom of the flash evaporation device are respectively connected with the steam quality improving unit and the ORC generator set, the steam quality improving unit is connected with a high-pressure steam discharge pipeline, the ORC generator set is connected with the post-cooler, the post-cooler is connected with the condensate tank, and the condensate tank is connected with an ORC unit hot water discharge pipeline. Preferably, the system further comprises a steam backup cooler, the top of the flash evaporation device is connected with the steam backup cooler, the steam backup cooler is connected with the steam upgrading unit, the high-pressure steam discharge pipeline is connected with the steam backup cooler, and the steam backup cooler is connected with a cooling water return pipeline. Preferably, the system further comprises a flash condensate backup cooler, wherein the bottom of the flash evaporation device is connected with the flash condensate backup cooler, the flash condensate backup cooler is connected with the ORC generator set, the flash condensate backup cooler is connected to a connecting pipeline between the ORC generator set and the aftercooler, and the flash condensate backup cooler is connected to a connecting pipeline between the steam stripping mass unit and the steam backup cooler. Preferably, the flash evaporation device comprises a main flash evaporation tank and a standby flash evaporation tank, wherein the tops of the main flash evaporation tank and the standby flash evaporation tank are connected with the steam upgrading unit and the steam standby cooler, and the bottoms of the main flash evaporation tank and the standby flash evaporation tank are connected with the ORC generator unit and the flash evaporation condensate standby cooler. Preferably, a circulating water pump is arranged on the circulating cooling water supply pipe. Preferably, the ORC unit hot water discharge line is provided with a condensate pump. Preferably, the top of the main flash tank and the top of the standby flash tank are both provided with flash steam reserved throwing openings. The utility model has the beneficial effects of 1, low operation and maintenance cost, higher integration degree of ORC equipment, high integration degree, mature vapor compression technology and low maintenance cost of a coupling system. 2. The method has the advantages of fully utilizing waste heat or renewable energy sources, reducing fossil fuel consumption and carbon emission, and meeting the aim of carbon neutralization. 3. The vapor compression and ORC coupling system remarkably improves energy efficiency and economy through temperature opposite port and energy cascade utilization, is particularly suitable for the scene of rich medium-low temperature heat sources, and is an important