CN216741641U - Hydraulic speed regulating device of steam turbine - Google Patents
Hydraulic speed regulating device of steam turbine Download PDFInfo
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- CN216741641U CN216741641U CN202220014834.8U CN202220014834U CN216741641U CN 216741641 U CN216741641 U CN 216741641U CN 202220014834 U CN202220014834 U CN 202220014834U CN 216741641 U CN216741641 U CN 216741641U
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- nozzle
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- ejector rod
- air inlet
- hydraulic ejector
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Abstract
A hydraulic speed regulating device of a steam turbine comprises a nozzle and an air inlet cavity, wherein the nozzle is arranged in the air inlet cavity in a penetrating mode, a hydraulic ejector rod is arranged on the side edge of the nozzle, a piston of the hydraulic ejector rod is arranged in the air inlet cavity in a penetrating mode, and a mechanical seal is arranged between the hydraulic ejector rod and the wall surface of the air inlet cavity; the end of the piston of the hydraulic ejector rod is provided with a supporting plate, and the supporting plate is arranged corresponding to the nozzle; the bottom surface of the supporting plate is integrally provided with a nozzle plug, the nozzle plug is in a cylindrical form, and the lower part of the nozzle plug, namely the end head facing the direction of the nozzle, is in a slope form. The utility model has simple structure, convenient use, low manufacturing cost or modification cost and easy maintenance, solves various problems of the speed regulation of the existing steam turbine through the simple structure, ensures the safe and stable operation of the equipment by jointly controlling a single air nozzle through two cooperative hydraulic push rods, prolongs the service life of the equipment and has great market popularization value.
Description
Technical Field
The utility model relates to the field of electromechanical equipment, in particular to a hydraulic speed regulating device of a steam turbine.
Background
The turbine is also called a steam turbine engine, is a rotary steam power device and is also the main equipment of modern thermal power plants. The working principle is that high-temperature high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates, and simultaneously, the rotor does work outwards. The rotation speed of the steam turbine is related to the power generation frequency, so that the rotation speed is required to be constant, and the realization of the constant rotation speed is generally realized by adjusting the opening degree of the nozzle. The existing opening degree adjustment often has the condition of unreasonable design, so that the service life of an opening degree adjusting mechanism is short, frequent maintenance is needed, and corresponding solving means or equipment is lacked at present aiming at the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the hydraulic speed regulating device of the steam turbine, which has the advantages of simple structure, safety, reliability and convenience in use.
The equipment comprises a nozzle and an air inlet cavity, wherein the nozzle is arranged in the air inlet cavity in a penetrating way;
a hydraulic ejector rod is arranged on the side edge of the nozzle, a piston of the hydraulic ejector rod penetrates through the air inlet chamber, and a mechanical seal is arranged between the hydraulic ejector rod and the wall surface of the air inlet chamber;
the end of the piston of the hydraulic ejector rod is provided with a supporting plate, and the supporting plate is arranged corresponding to the nozzle;
the bottom surface of the supporting plate is integrally provided with a nozzle plug, the nozzle plug is in a cylindrical form, and the lower part of the nozzle plug, namely the end head facing the direction of the nozzle, is in a slope form.
Furthermore, the side of the nozzle is provided with two hydraulic ejector rods, and the support plate is fixedly arranged on the piston ends of the two hydraulic ejector rods.
Furthermore, a spring is arranged between the support plate and the inner wall surface of the air inlet cavity.
The utility model has the beneficial effects that: the utility model has simple structure, convenient use, low manufacturing cost or modification cost and easy maintenance, solves various problems of the speed regulation of the existing steam turbine through the simple structure, ensures the safe and stable operation of the equipment by jointly controlling a single air nozzle through two cooperative hydraulic push rods, prolongs the service life of the equipment and has great market popularization value.
Drawings
FIG. 1 is a schematic structural diagram of a hydraulic governor of a steam turbine according to the present invention;
FIG. 2 is a schematic view of a partial structure of a hydraulic governor of a steam turbine according to the present invention;
reference numerals:
1-support plate 2-air inlet chamber 3-hydraulic ejector rod 4-spring 5-nozzle plugging
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
Referring to fig. 1 and 2, the hydraulic speed regulating device of the steam turbine according to the present invention includes a nozzle and an air inlet chamber 2, wherein the nozzle is arranged in the air inlet chamber 2 in a penetrating manner;
a hydraulic ejector rod 3 is arranged on the side edge of the nozzle, a piston of the hydraulic ejector rod 3 penetrates through the air inlet chamber 2, and a mechanical seal is arranged between the hydraulic ejector rod 3 and the wall surface of the air inlet chamber 2;
a supporting plate 1 is arranged at the end head of the piston of the hydraulic ejector rod 3, and the supporting plate 1 is arranged corresponding to the nozzle;
a nozzle plug 5 is integrally arranged on the bottom surface of the support plate 1, the nozzle plug 5 is in a cylindrical form, and the lower part of the nozzle plug 5, namely the end head facing the nozzle direction, is in a slope form.
Furthermore, the side of the nozzle is provided with two hydraulic push rods 3, and the support plate 1 is fixedly arranged on the piston ends of the two hydraulic push rods 3.
Further, a spring 4 is arranged between the support plate 1 and the inner wall surface of the air inlet chamber 2.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The utility model provides a steam turbine hydraulic pressure speed adjusting device, includes nozzle and air intake cavity, the nozzle wears to locate in the air intake cavity, its characterized in that: a hydraulic ejector rod is arranged on the side edge of the nozzle, a piston of the hydraulic ejector rod penetrates through the air inlet chamber, and a mechanical seal is arranged between the hydraulic ejector rod and the wall surface of the air inlet chamber;
the end of the piston of the hydraulic ejector rod is provided with a supporting plate, and the supporting plate is arranged corresponding to the nozzle;
the bottom surface of the supporting plate is integrally provided with a nozzle plug, the nozzle plug is in a cylindrical form, and the lower part of the nozzle plug, namely the end head facing the direction of the nozzle plug, is in a slope form.
2. The hydraulic speed regulating device for the steam turbine according to claim 1, wherein the nozzle is provided with two hydraulic ejector rods at the side, and the support plate is fixedly arranged at the piston ends of the two hydraulic ejector rods.
3. The hydraulic speed regulating device for the steam turbine according to claim 1, wherein a spring is further provided between the support plate and the inner wall surface of the inlet chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220014834.8U CN216741641U (en) | 2022-01-06 | 2022-01-06 | Hydraulic speed regulating device of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220014834.8U CN216741641U (en) | 2022-01-06 | 2022-01-06 | Hydraulic speed regulating device of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216741641U true CN216741641U (en) | 2022-06-14 |
Family
ID=81911836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220014834.8U Active CN216741641U (en) | 2022-01-06 | 2022-01-06 | Hydraulic speed regulating device of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216741641U (en) |
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2022
- 2022-01-06 CN CN202220014834.8U patent/CN216741641U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221214 Address after: 272300 in Luwa Industrial Park, Zhanghuang Town, Yutai County, Jining City, Shandong Province Patentee after: Shandong Lutai Thermal Power Co.,Ltd. Address before: 272300 in Luwa Industrial Park, Zhanghuang Town, Yutai County, Jining City, Shandong Province Patentee before: Shandong Lutai Thermal Power Co.,Ltd. Patentee before: SHANDONG LUTAI HOLDING GROUP Co.,Ltd. |