CN213840872U

CN213840872U - Water recycling system for waste heat power generation boiler

Info

Publication number: CN213840872U
Application number: CN202022764925.7U
Authority: CN
Inventors: 房守平; 景兆华; 姚亮
Original assignee: Ningxia Sanyuan Zhongtai Metallurgy Co ltd
Current assignee: Ningxia Sanyuan Zhongtai Metallurgy Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-30
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a waste heat power generation boiler water cyclic utilization system, including preheating the subassembly, waste heat boiler, the steam turbine, the condenser, the pond, oxygen-eliminating device and water purifier, from preheating the subassembly, waste heat boiler, the steam turbine, the condenser, the pond, the water purifier, adopt the pipeline to be linked together to form a closed circulation circuit between the oxygen-eliminating device, at the circulation in-process at every turn, all water that get into waste heat subassembly all need get rid of through the calcium magnesium ion of purifier aquatic, the problem of pipeline scale deposit has been solved, adopt the dust that washs the subassembly with snakelike preheating tube surface to wash, waste water after the washing is handling at backward flow to pond through the filtering ponds, the cyclic utilization of completion water, the efficiency of lasting electricity generation has been kept in the using water wisely.

Description

Water recycling system for waste heat power generation boiler

Technical Field

The utility model belongs to the technical field of the waste heat power generation application technique and specifically relates to a waste heat power generation boiler water cyclic utilization system is related to.

Technical Field

The conventional waste heat power generation boiler accelerates molecular motion by means of pressure generated in the boiler, so that water vapor in the boiler reaches a saturated state to generate certain pressure, the steam engine is pushed to work to drive a generator to generate power, and heat energy is converted into kinetic energy and then converted into electric energy.

However, in actual use, water is heated in the process of repeated circulation in the waste heat boiler, and the problem of low power generation efficiency due to scaling of the inner wall of the pipeline caused by long-term accumulation occurs.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an install hot stove in ore deposit and use for a long time the waste heat power generation boiler water cyclic utilization system that back generating efficiency still can stably keep.

A water recycling system for a waste heat power generation boiler comprises a preheating component, a waste heat boiler, a steam turbine, a condenser, a water tank and a deaerator, wherein a water outlet pipe of the preheating component is communicated with a water inlet pipe of the waste heat boiler; the preheating assembly comprises a shell and a plurality of groups of snakelike preheating pipes, a high-temperature smoke inlet is formed in the bottom of the shell, a high-temperature smoke outlet is formed in the top of the shell, the shell is made of high-temperature-resistant materials, the plurality of groups of snakelike preheating pipes are uniformly distributed in the shell, the high-temperature smoke inlet of the preheating assembly is communicated with the smoke outlet of the submerged arc furnace, the waste heat boiler is provided with a high-temperature smoke inlet, and the high-temperature smoke inlet of the waste heat boiler is communicated with the high-temperature smoke outlet of the shell.

Preferably, waste heat power generation boiler water cyclic utilization system still includes washs the subassembly, washs the subassembly and includes water tank, third water pump, a plurality of shower nozzle, and water tank and pipeline intercommunication for the third water pump, third water pump and every shower nozzle are respectively with the pipeline intercommunication, and a plurality of shower nozzles distribute around shells inner wall, and the shower nozzle delivery port all faces snakelike surplus heat pipe.

Preferably, the bottom of the shell is provided with a wastewater discharge port and a slag discharge port, the wastewater discharge port is communicated with the filtering tank, and the filtering type is communicated with the water tank.

In the water recycling system for the waste heat power generation boiler, the preheating assembly absorbs the temperature of high-temperature flue gas of the submerged arc furnace to heat water in the waste heat assembly, the waste heat assembly conveys the heated water into the waste heat boiler, the waste heat boiler absorbs the heat of the high-temperature flue gas of the submerged arc furnace again, the water in the waste heat boiler is heated and boiled to form a high-temperature steam-water mixture and then conveyed to the steam pocket, the steam pocket separates steam of the high-temperature steam-water mixture and conveys the high-temperature steam-water mixture to the steam turbine, the steam enters the condenser to form water and the water after the steam pocket is separated and then circulates to the waste heat assembly again, and in each circulation process, all water entering the waste heat assembly needs to be removed through calcium and magnesium ions in water of the purifier, so that the problem of pipeline scaling is solved; the preheating assembly has the advantages that more and more dust is deposited on the snake-shaped preheating pipe after the preheating assembly is used for a long time, so that the heat absorption performance of the snake-shaped preheating pipe is influenced, the dust on the surface of the snake-shaped preheating pipe is cleaned by the cleaning assembly, the cleaned wastewater flows back to the water tank after being treated by the filtering tank, the water is recycled, and the efficiency of durable power generation is kept while the water is saved.

Drawings

Fig. 1 is a block diagram of a water recycling system for a cogeneration boiler.

In the figure: the water recycling system comprises a waste heat power generation boiler water recycling system 10, a preheating assembly 11, a waste heat boiler 12, a steam drum 13, a steam turbine 14, a condenser 15, a water tank 16, a deaerator 17, a cleaning assembly 18, a filter tank 19, a first water pump connection 151, a water purifier 161, a second water pump 171, a shell 111, a serpentine preheating pipe 112, a high-temperature flue gas inlet 113, a water tank 181, a third water pump 182, a plurality of spray heads 183, a waste water outlet 114 and a slag discharge port 115.

Detailed Description

The following combines the utility model discloses an attached drawing does further elaboration to the technical scheme and the technological effect of utility model embodiment.

Referring to fig. 1, a water recycling system 10 for a waste heat power generation boiler comprises a preheating assembly 11, a waste heat boiler 12, a steam drum 13, a steam turbine 14, a condenser 15, a water tank 16, a deaerator 17, a cleaning assembly 18 and a filtering tank 19, wherein a water outlet pipe of the preheating assembly 11 is communicated with a water inlet pipe of the waste heat boiler 12, a steam exhaust pipe of the waste heat boiler 12 is communicated with the steam drum 13, a high-pressure steam delivery pipe of the steam drum 13 is communicated with the steam turbine 14, a descending pipe of the steam drum 13 is communicated with a water outlet pipe of the condenser 15, the steam turbine 14 is communicated with the steam cooler 15 through a pipeline, a water outlet pipe of the steam cooler 15 is communicated with a water inlet pipe of the preheating assembly 11, a first water pump connection 151 is installed on the water outlet pipe of the steam cooler 15, a water purifier 161 is installed on the water outlet pipe of the water tank 16, the water purifier 161 is communicated with the deaerator 17 through a pipeline, a water outlet pipe of the deaerator 17 is communicated with a water inlet pipe of the preheating assembly 11, a second water pump 171 is arranged on a water outlet pipe of the deaerator 17; the preheating assembly 11 comprises a shell 111 and a plurality of groups of serpentine preheating pipes 112, a high-temperature flue gas inlet 113 is arranged at the bottom of the shell 111, a high-temperature flue gas outlet is arranged at the top of the shell 111, the shell 111 is made of high-temperature resistant materials, the plurality of groups of serpentine preheating pipes 112 are uniformly distributed in the shell 111, the high-temperature flue gas inlet 113 of the preheating assembly 11 is communicated with the flue gas outlet of the submerged arc furnace, the waste heat boiler 12 is provided with a high-temperature flue gas inlet, and the high-temperature flue gas inlet of the waste heat boiler 12 is communicated with the high-temperature flue gas outlet of the shell 111. The cleaning assembly 18 comprises a water tank 181, a third water pump 182, a plurality of spray heads 183, the water tank 181 is communicated with the third water pump 182 through pipelines, the third water pump 182 is communicated with each spray head 183 through pipelines, the spray heads 183 are distributed around the inner wall of the shell 111, water outlets of the spray heads 183 face the snake-shaped residual heat pipe 112, a waste water outlet 114 and a slag discharge port 115 are formed in the bottom of the shell 111, waste water discharged from the waste water outlet 114 flows into the filtering tank 19 for water conservation, the filtering tank 19 is communicated with the water tank 16, and the slag discharge port 115 is convenient for cleaning deposited large granular impurities.

Claims

1. A water recycling system for a waste heat power generation boiler is characterized by comprising a preheating assembly, the waste heat boiler, a steam turbine, a condenser, a water pool and a deaerator, wherein a water outlet pipe of the preheating assembly is communicated with a water inlet pipe of the waste heat boiler; the preheating assembly comprises a shell and a plurality of groups of snakelike preheating pipes, a high-temperature smoke inlet is formed in the bottom of the shell, a high-temperature smoke outlet is formed in the top of the shell, the shell is made of high-temperature-resistant materials, the plurality of groups of snakelike preheating pipes are uniformly distributed in the shell, the high-temperature smoke inlet of the preheating assembly is communicated with the smoke outlet of the submerged arc furnace, the waste heat boiler is provided with a high-temperature smoke inlet, and the high-temperature smoke inlet of the waste heat boiler is communicated with the high-temperature smoke outlet of the shell.

2. The water recycling system for the cogeneration boiler of claim 1, further comprising a cleaning assembly, wherein the cleaning assembly comprises a water tank, a third water pump and a plurality of spray heads, the water tank is communicated with the third water pump through a pipeline, the third water pump is communicated with each spray head through a pipeline, the plurality of spray heads are distributed around the inner wall of the housing, and water outlets of the spray heads face the serpentine residual heat pipe.

3. The water recycling system for the cogeneration boiler of claim 2, wherein the bottom of the housing is provided with a waste water discharge port and a slag discharge port, the waste water discharge port is communicated with the filtering tank, and the filter is communicated with the water tank.