CN214664342U

CN214664342U - Environment-friendly energy-saving boiler starting drainage device

Info

Publication number: CN214664342U
Application number: CN202120737287.1U
Authority: CN
Inventors: 邓山
Original assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Current assignee: Huaneng Qinmei Ruijin Power Generation Co Ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-09
Anticipated expiration: 2031-04-12

Abstract

The utility model relates to a coal-fired power generation technical field especially relates to a boiler start-up drainage device of environmental protection and energy saving, including hydrophobic flash tank, hydrophobic flash tank passes through hydrophobic collector and links to each other with the boiler, hydrophobic flash tank bottom still passes through the pipe connection header tank, the header tank is connected with condenser and water drainage tank respectively through the drain pipe, still be fixed with the drainage pump on the drain pipe, hydrophobic flash tank top is fixed with the evacuation pipe, the evacuation pipe end is fixed with the electric valve, the evacuation pipe still is connected with the oxygen-eliminating device through the connecting pipe, be fixed with the electric gate on the connecting pipe, still be fixed with inlet tube and outlet pipe on the oxygen-eliminating device respectively. Can effectively absorb boiler exhaust high temperature vapor through this device, avoid vapor to arouse the rainfall to absorb the heat of high temperature vapor through the oxygen-eliminating device, realize heat recycle.

Description

Environment-friendly energy-saving boiler starting drainage device

[ technical field ] A method for producing a semiconductor device

The utility model relates to a coal-fired power generation technical field especially relates to an environmental protection and energy saving boiler start-up drainage device.

[ background of the invention ]

The boiler steam soot blowing drainage in the process of starting drainage and normal operation of a supercritical coal-fired unit boiler is usually introduced into a drainage flash tank, after drainage flash tank expansion, steam is directly discharged to the atmosphere, and condensed water is discharged into a unit drainage tank or a condenser. At present, drainage is started and normal soot blowing drainage of a boiler is exhausted to the atmosphere through a flash tank, condensed water drops cause rain falling at the periphery, particularly the deep peak regulation scale is deepened increasingly, the wet state of a supercritical boiler becomes a normal state, the loss of water exhausted into the atmosphere after passing through the flash tank is large, the chemical water supply of a power plant is threatened, meanwhile, large-area water falling in the power plant area is caused, and the production environment is influenced.

The utility model discloses it is not enough to solve prior art and research and propose.

[ Utility model ] content

The utility model aims at overcoming the shortcoming of above-mentioned prior art, provide an environmental protection and energy saving boiler start-up drainage device.

The utility model discloses can realize through following technical scheme:

the utility model discloses an environmental protection and energy saving boiler start-up drainage device, including hydrophobic flash tank, hydrophobic flash tank passes through the hydrophobic header and links to each other with the boiler, hydrophobic flash tank bottom is still through the pipe connection header tank, the header tank is connected with condenser and water drainage tank respectively through the drain pipe, still be fixed with the drainage pump on the drain pipe, hydrophobic flash tank top is fixed with the evacuation pipe, the evacuation pipe end is fixed with the electric valve, the evacuation pipe still is connected with the oxygen-eliminating device through the connecting pipe, be fixed with the electric gate on the connecting pipe, still be fixed with inlet tube and outlet pipe on the oxygen-eliminating device respectively. Closing an electric valve on an emptying pipe, opening an electric gate on a connecting pipe, discharging steam generated by boiler starting and steam soot blowing into a drainage flash tank through a drainage collecting pipe, discharging the steam into a water collecting tank through a pipeline at the bottom of the drainage flash tank after the steam is liquefied in the drainage flash tank, recovering the water collected in the water collecting tank into a drainage tank and a condenser through a drainage pump, discharging high-temperature steam into a deaerator through the connecting pipe, feeding low-temperature water into the deaerator through a water inlet pipe, mixing the low-temperature water sprayed in the deaerator with the high-temperature steam discharged into the deaerator by the drainage flash tank, discharging the low-temperature water to a high-pressure heater through a water outlet pipe after absorbing the heat of the steam, effectively absorbing the high-temperature steam discharged by the boiler by the device, avoiding rainfall caused by the steam, and absorbing the heat of the high-temperature steam by the deaerator, and the heat recovery and utilization are realized.

Compared with the prior art, the utility model has the advantages that:

can effectively absorb boiler exhaust high temperature vapor through this device, avoid vapor to arouse the rainfall to absorb the heat of high temperature vapor through the oxygen-eliminating device, realize heat recycle.

[ description of the drawings ]

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural view of the present invention;

in the figure: 1. a hydrophobic flash tank; 2. a drain header; 3. a water collection tank; 4. a drain pipe; 5. a drain pump; 6. a condenser; 7. a water discharge tank; 8. emptying the pipe; 9. an electric valve; 10. a connecting pipe; 11. an electric gate; 12. a deaerator; 13. a water inlet pipe; 14. a water outlet pipe;

[ detailed description ] embodiments

The following detailed description of embodiments of the present invention is made with reference to the accompanying drawings:

as shown in fig. 1, the utility model discloses an environmental protection and energy saving boiler start-up drainage device, draw together hydrophobic flash tank 1, hydrophobic flash tank 1 links to each other with the boiler (not shown) through

hydrophobic header

2, 1 bottom of hydrophobic flash tank still passes through pipe connection header tank 3, header tank 3 is connected with condenser 6 and water drainage tank 7 respectively through drain pipe 4, still be fixed with drain pump 5 on the drain pipe 4, 1 top of hydrophobic flash tank is fixed with evacuation pipe 8, evacuation pipe 8 end is fixed with electric valve 9, evacuation pipe 8 still is connected with oxygen-eliminating device 12 through connecting pipe 10, be fixed with electric gate 11 on the connecting pipe 10, still be fixed with inlet tube 13 and outlet pipe 14 on the oxygen-eliminating device 12 respectively. An electric valve 9 on an emptying pipe 8 is closed, an electric gate 11 on a connecting pipe 10 is opened, steam generated by boiler starting and steam soot blowing is discharged into a drainage flash tank 1 through a drainage collecting pipe 2, the steam is liquefied in the drainage flash tank 1 and then discharged into a water collecting tank 3 through a pipeline at the bottom of the drainage flash tank 1 for collection, the water collected in the water collecting tank 3 is discharged into a drainage tank 7 and a condenser 6 through a drainage pump 5 for recovery, high-temperature steam is discharged into a deaerator 12 through the connecting pipe 10, low-temperature water enters the deaerator 12 through a water inlet pipe 13, the low-temperature water is sprayed out of the deaerator 12 and then mixed with the high-temperature steam discharged into the deaerator 12 from the drainage flash tank 1, the low-temperature water absorbs the heat of the steam and then is discharged to a high-pressure heater (not shown) through a water outlet pipe 14, and the high-temperature steam discharged from the boiler can be effectively absorbed by the device, the rainfall caused by the water vapor is avoided, and the heat of the high-temperature water vapor is absorbed by the deaerator 12, so that the heat is recycled.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes, modifications, substitutions and variations can be made to the embodiments without departing from the technical principles of the present invention, and these changes, modifications, substitutions and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an environmental protection and energy saving boiler start-up hydrophobic means, includes hydrophobic flash tank, its characterized in that: the drain flash tank passes through the drain header and links to each other with the boiler, the drain flash tank bottom still passes through the pipe connection header tank, the header tank is connected with condenser and water drainage tank respectively through the drain pipe, still be fixed with the drainage pump on the drain pipe, the drain flash tank top is fixed with the evacuation pipe, the evacuation pipe end is fixed with the electric valve, the evacuation pipe still is connected with the oxygen-eliminating device through the connecting pipe, be fixed with the electric gate on the connecting pipe, still be fixed with inlet tube and outlet pipe on the oxygen-eliminating device respectively.