CN-224215313-U - Improved auxiliary machine circulating water device of turbine room

Abstract

The utility model discloses an improved circulating water device for auxiliary machines of a steam turbine room, which relates to the technical field of circulating water for auxiliary machines of a steam turbine room. According to the utility model, through the plate-type steam-water heat exchanger, the steam inlet pipe, the condensed water return pipe, the cold water inlet pipe and the hot water outlet pipe, auxiliary machine circulating water of the steam turbine room flows into the plate-type steam-water heat exchanger when a unit is stopped, high-temperature steam during operation of the boiler enters the plate-type steam-water heat exchanger, so that the circulating water and the high-temperature steam are subjected to heat exchange treatment, water in an auxiliary machine circulating water system is heated to about fifteen DEG, manual water discharge treatment is not needed, the operation difficulty is reduced, and the water resource waste is reduced.

Inventors

• LI YANBIN
• LIU BO
• BAI XUHUI
• WANG XIAOJUN
• WANG WENHUAN
• Guang Jiangbing

Assignees

• 山西昔阳华新热电有限公司

Dates

Publication Date

20260508

Application Date

20250529

Claims (6)

1. 1. The utility model provides an improved generation steam turbine room auxiliary engine circulating water device, includes board-like soda heat exchanger (1), its characterized in that board-like soda heat exchanger (1) side is connected with cold water and advances pipe (4), cold water advances pipe (4) one side and is provided with hot water exit tube (5), cold water advances pipe (4) downside and is provided with steam and advances pipe (2), hot water exit tube (5) outer loop side is provided with supporting rib (12), supporting rib (12) keep away from hot water exit tube (5) one end is provided with supporting ring (11), the supporting ring (11) outside is provided with interior aluminium foil layer (10), interior aluminium foil layer (10) outside is provided with and aerifys sponge layer (9), it is provided with outer aluminium foil layer (8) to aerify sponge layer (9) outside, be formed with air chamber (13) between supporting rib (12).
2. 2. The improved auxiliary machine circulating water device for the steam turbine room, as claimed in claim 1, is characterized in that an adhesive layer (15) is arranged on the outer side of the steam inlet pipe (2), an insulating layer (16) is arranged on the outer side of the adhesive layer (15), and a protective aluminum foil layer (17) is arranged on the outer side face of the insulating layer (16).
3. 3. The improved auxiliary machine circulating water device for the steam turbine room, as claimed in claim 2, is characterized in that an electric tracing band (14) is wound on the outer side surface of the cold water inlet pipe (4), a condensate return pipe (3) is arranged on one side of the steam inlet pipe (2), and valves (6) are arranged on the steam inlet pipe (2), the condensate return pipe (3), the cold water inlet pipe (4) and the hot water outlet pipe (5).
4. 4. The improved auxiliary machine circulating water device for the steam turbine room, as claimed in claim 3, is characterized in that the cold water inlet pipe (4) and the hot water outlet pipe (5) are connected with an evaporative cooling tower (7), and the steam inlet pipe (2) is connected with the plate-type steam-water heat exchanger (1) through a flange.
5. 5. The improved auxiliary machine circulating water device for the steam turbine room, as claimed in claim 1, is characterized in that the steam inlet pipe (2) is connected with the plate-type steam-water heat exchanger (1) through a flange, and the cold water inlet pipe (4) is connected with the plate-type steam-water heat exchanger (1) through a flange.
6. 6. The improved auxiliary machine circulating water device for the steam turbine room, as claimed in claim 4, is characterized in that the cold water inlet pipe (4) and the hot water outlet pipe (5) are connected with the evaporative cooling tower (7) through flanges.

Description

Improved auxiliary machine circulating water device of turbine room Technical Field The utility model relates to the technical field of auxiliary machine circulating water of a turbine room, in particular to an improved auxiliary machine circulating water device of the turbine room. Background During peak regulation of a turbine room in winter, after the unit is shut down, because the temperature of the external environment is lower, an auxiliary machine circulating water pipeline is not heated by a heat source, and an evaporative cooling tower and the pipeline belong to an auxiliary machine circulating water system and are arranged outdoors, so that the auxiliary machine circulating water pipeline is extremely easy to freeze. In order to prevent the pipeline from being frozen and cracked in winter, the conventional circulating water device has the problems that an operator needs to drain water to an auxiliary machine circulating water system after stopping, so that an operation task is increased, and water resources are seriously wasted ‌. Disclosure of utility model The utility model aims to overcome the existing defects and provide an improved auxiliary machine circulating water device of a steam turbine room, through the arrangement of the plate-type steam-water heat exchanger, the steam inlet pipe, the condensed water return pipe, the cold water inlet pipe and the hot water outlet pipe, auxiliary machine circulating water of the steam turbine room flows into the plate-type steam-water heat exchanger when a machine set stops running, high-temperature steam during boiler operation enters the plate-type steam-water heat exchanger, so that the circulating water and the high-temperature steam perform heat exchange treatment, water in an auxiliary machine circulating water system is heated to about fifteen degrees, manual water discharge treatment is not needed, the operation difficulty is reduced, the water resource waste is reduced, and the problems in the background art can be effectively solved. In order to achieve the aim, the improved auxiliary machine circulating water device of the steam turbine room comprises a plate-type steam-water heat exchanger, wherein one side face of the plate-type steam-water heat exchanger is connected with a cold water inlet pipe, one side of the cold water inlet pipe is provided with a hot water outlet pipe, the lower side of the cold water inlet pipe is provided with a steam inlet pipe, the outer ring side of the hot water outlet pipe is provided with a support rib, one end, far away from the hot water outlet pipe, of the support rib is provided with a support ring, the outer side of the support ring is provided with an inner aluminum foil layer, the outer side of the inner aluminum foil layer is provided with an inflatable sponge layer, the outer side of the inflatable sponge layer is provided with an outer aluminum foil layer, and an air cavity is formed between the support ribs. Further, the steam advances the pipe outside and is provided with the adhesion layer, the adhesion layer outside is provided with the heat preservation, the heat preservation lateral surface is provided with the protection aluminium foil layer. Further, an electric tracing band is wound on the outer side surface of the cold water inlet pipe, a condensate return pipe is arranged on one side of the steam inlet pipe, and valves are arranged on the steam inlet pipe, the condensate return pipe, the cold water inlet pipe and the hot water outlet pipe. Furthermore, the cold water inlet pipe and the hot water outlet pipe are both connected with an evaporative cooling tower, and the steam inlet pipe is connected with the plate type steam-water heat exchanger through a flange. Further, the steam inlet pipe is connected with the plate-type steam-water heat exchanger through a flange, and the cold water inlet pipe is connected with the plate-type steam-water heat exchanger through a flange. Further, the cold water inlet pipe and the hot water outlet pipe are connected with the evaporative cooling tower through flanges. Compared with the prior art, the utility model has the beneficial effects that: 1. According to the utility model, through the plate-type steam-water heat exchanger, the steam inlet pipe, the condensed water return pipe, the cold water inlet pipe and the hot water outlet pipe, auxiliary machine circulating water of the steam turbine room flows into the plate-type steam-water heat exchanger when a unit is stopped, high-temperature steam during boiler operation enters the plate-type steam-water heat exchanger, so that the circulating water and the high-temperature steam are subjected to heat exchange treatment, water in an auxiliary machine circulating water system is heated to about fifteen ℃, manual water discharge treatment is not needed, the operation difficulty is reduced, and the water resource waste is reduced. Drawings FIG. 1 is a schematic diagram of a front view of the present utili