Search

CN-224230758-U - Technical transformation device for improving vacuum degree of steam turbine

CN224230758UCN 224230758 UCN224230758 UCN 224230758UCN-224230758-U

Abstract

The utility model relates to the technical field of steam turbine vacuum degree technical transformation, in particular to a technical transformation device for improving the vacuum degree of a steam turbine; the technical scheme is that the technical transformation device for improving the vacuum degree of the steam turbine comprises an exhaust device main body, a branch pipeline, an electric regulating valve, a main pipe of a water supply pipeline, an electric water diversion valve, a water supply hole, a fan-shaped atomizing nozzle, a mounting base and a temperature monitoring probe, wherein the branch pipeline is arranged on one side of the exhaust device main body; compared with the prior art that the vacuum size of the steam turbine is related to various factors of cooling water in a condenser, when the exhaust temperature is increased, the pressure of an exhaust device is reduced, the vacuum degree is reduced, and the efficiency of the steam turbine is directly affected.

Inventors

  • CHEN WEI
  • ZHOU JUNWEI
  • LIU YANYUN
  • ZHANG HAIJIN
  • ZHANG QIANG
  • LIANG SHUQING

Assignees

  • 陕西有色榆林新材料集团有限责任公司

Dates

Publication Date
20260512
Application Date
20250506

Claims (7)

  1. 1. The technical transformation device for improving the vacuum degree of the steam turbine comprises an exhaust device main body (1) and is characterized by further comprising a branch pipeline (301), an electric regulating valve (302), a water supply pipeline main pipe (303), an electric water distribution valve (304), a water supply hole (305), fan-shaped atomizing nozzles (306), a mounting base (307) and a temperature monitoring probe (308), wherein the branch pipeline (301) is arranged on one side of the exhaust device main body (1), two groups of branch pipelines (301) are arranged, the electric regulating valve (302) is arranged on the outer side of the branch pipeline (301), one ends of the two groups of branch pipelines (301) are connected with a water supply pipeline main pipe (303), the electric water distribution valve (304) is arranged on the outer side of the water supply pipeline main pipe (303), the water supply hole (305) is arranged on one end surface of the inside the exhaust device main body (1), a plurality of groups of water supply holes (305) are formed, the fan-shaped atomizing nozzles (306) are arranged on the surface of the water supply hole (305), the mounting base (307) is arranged on one side of the inner wall of the exhaust device main body (1), and the temperature monitoring probe (308) is arranged on one side of the mounting base (307).
  2. 2. The technical transformation device for improving the vacuum degree of the steam turbine according to claim 1, wherein an air inlet pipe (201) is arranged on one side of the air exhaust device main body (1), the air inlet pipe (201) is located above a main pipe (303) of a water supply pipeline, an air inlet connecting piece (202) is arranged at one end of the air inlet pipe (201), an air inlet valve (203) is arranged on the outer side of the air inlet pipe (201), and a first air filtering plate (204) is arranged at one end port of the air inlet pipe (201) located inside the air exhaust device main body (1).
  3. 3. The improvement of a steam turbine vacuum degree according to claim 1, wherein a mounting frame (401) is provided in the exhaust device main body (1), and a dispersion water guide plate (402) is provided in the inner side of the mounting frame (401).
  4. 4. The improvement of a steam turbine vacuum degree according to claim 3, wherein a cooler (501) is arranged on one side of the exhaust device main body (1), supporting bases (502) are arranged on two sides of the inside of the exhaust device main body (1), the supporting bases (502) are located below the dispersion water guide plates (402), and a cooling pipeline (503) is arranged on one side of the supporting bases (502).
  5. 5. The device for improving the vacuum degree of the steam turbine according to claim 4, wherein a water storage tank (601) is arranged in the exhaust device main body (1), the water storage tank (601) is positioned below the cooling pipeline (503), a water diversion groove (602) is formed in the surface of the water storage tank (601), and a condensing pump (603) is arranged on the bottom surface of the water storage tank (601).
  6. 6. The technical transformation device for improving the vacuum degree of a steam turbine according to claim 1, wherein a deaerator (701) is arranged on the bottom surface of the exhaust device main body (1), and a data controller (702) is arranged on the surface of the deaerator (701).
  7. 7. The technical transformation device for improving the vacuum degree of the steam turbine according to claim 1, wherein a mounting groove (801) is formed in the other side of the inside of the exhaust device main body (1), a second air filtering plate (802) is arranged in the mounting groove (801), a waterproof baffle plate (803) is arranged above the mounting groove (801), an exhaust pipe (804) is arranged on the other side of the exhaust device main body (1), and a vacuum pump (805) is arranged on the outer side of the exhaust pipe (804).

Description

Technical transformation device for improving vacuum degree of steam turbine Technical Field The utility model relates to the technical field of steam turbine vacuum degree technical transformation, in particular to a technical transformation device for improving the vacuum degree of a steam turbine. Background In the power generation production process of a power plant, a steam turbine is core equipment for converting steam heat energy into mechanical energy, and vacuumizing of the steam turbine is an essential link for starting and normal operation of the steam turbine, a specific low-pressure environment can be created through vacuumizing operation, multiple positive effects are generated on high-efficiency, safe and stable operation of the steam turbine, the important guarantee of reliable power generation and optimal operation of the power plant is achieved, the problem of insufficient vacuum degree of a condenser in the operation process of the steam turbine is a technical problem generally faced by the power industry, and the problem not only affects the operation efficiency of the steam turbine, but also can cause frequent equipment faults. In the working process of the steam turbine, the steam loses kinetic energy through the impact and friction of the blades, so that high-temperature and high-pressure exhaust steam is generated, the exhaust steam enters the condenser through the exhaust device, the inside of the exhaust device always presents a negative pressure state due to the counter-force action of the condenser, when the exhaust temperature rises, the density of smoke is reduced, the volume is enlarged, the pressure in the exhaust device also reduces along with the reduction, the internal pressure of the exhaust device reduces, the exhaust system presents a negative pressure state, the vacuum is reduced, the vacuum of the steam turbine is related to the factors such as the temperature of cooling water in the condenser, the pressure in the exhaust pipe and the like, and when the exhaust temperature rises, the pressure of the exhaust device reduces along with the reduction, and the vacuum degree directly influences the efficiency of the steam turbine. The method aims at the problems that the vacuum degree of the existing steam turbine is related to factors such as the temperature of cooling water in a condenser and the pressure in an exhaust pipe, when the exhaust steam temperature rises, the pressure of an exhaust device is reduced, and the vacuum degree is reduced, so that the efficiency of the steam turbine is directly affected. Disclosure of utility model In order to solve the problems that the vacuum degree of the existing steam turbine is related to the temperature of cooling water in a condenser, the pressure in an exhaust pipe and the like, when the temperature of exhaust steam is increased, the pressure of an exhaust device is reduced, and the vacuum degree is reduced, so that the efficiency of the steam turbine is directly influenced. The technical scheme includes that the technical transformation device for improving the vacuum degree of the steam turbine comprises an exhaust device main body, branch pipelines, electric regulating valves, a water supply pipeline main pipe, electric water distributing valves, water supply holes, fan-shaped atomizing nozzles, a mounting base and a temperature monitoring probe, wherein the branch pipelines are arranged on one side of the exhaust device main body, two groups of the branch pipelines are arranged, the electric regulating valves are arranged on the outer sides of the branch pipelines, one ends of the two groups of the branch pipelines are connected with the water supply pipeline main pipe, the electric water distributing valves are arranged on the outer sides of the water supply pipeline main pipe, the water supply holes are formed in the surface of one end, which is located in the exhaust device main body, of the branch pipelines, a plurality of groups of the water supply holes are formed in the surface of the water supply holes, the fan-shaped atomizing nozzles are arranged on the surface of the water supply holes, the mounting base is arranged on one side of the inner wall of the exhaust device main body, and the temperature monitoring probe is arranged on one side of the mounting base. Preferably, carry power plant demineralized water through feed pipe main pipe, evenly distribute the branch road pipeline with demineralized water through electronic shunt valve, carry the demineralized water to the exhaust apparatus main part inside through the branch road pipeline, dynamically adjust the inflow of branch road pipeline through the electric control valve, carry to fan-shaped atomizer department through the feed water hole with carrying the demineralized water to the inside of exhaust apparatus main part, be fan-shaped evenly spouted to the inside top of exhaust apparatus main part with the demineralized water through fan-shaped atomizer,