CN212272319U

CN212272319U - Integrated steam turbine generator unit

Info

Publication number: CN212272319U
Application number: CN202020386321.0U
Authority: CN
Inventors: 陈巨龙; 杨勋; 柴立峰; 李参
Original assignee: Zhejiang Juyuan Power Equipment Co ltd
Current assignee: Zhejiang Juyuan Power Equipment Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2021-01-01
Anticipated expiration: 2030-03-24

Abstract

The utility model provides an integrated turbo generator set, the integrated turbo generator set main shaft rotor comprises an integrated cylinder body, a turbo set rotor, a power generation set rotor and a main shaft, the main shaft is arranged between the integrated cylinder bodies, the turbo set rotor and the power generation set rotor are both sleeved on the circumferential surface of the main shaft, the turbo set rotor and the power generation set rotor are both positioned in the integrated cylinder body, the integrated cylinder body comprises an upper cylinder body and a lower cylinder body, the upper cylinder body is detachably connected with the lower cylinder body, the upper cylinder body comprises an upper left cylinder body, an upper T-shaped connecting cylinder body and an upper right cylinder body, the upper T-shaped connecting cylinder body is fixed between the upper left cylinder body and the upper right cylinder body, the lower cylinder body comprises a lower left cylinder body, a lower T-shaped connecting cylinder body and a lower right cylinder body, the lower T-shaped connecting cylinder body is fixed between the lower left cylinder body and the lower right cylinder body, the integration of a steam, the assembly is convenient, and the integration of the turbine sleeved rotor, the power generation sleeved rotor and the main shaft is realized.

Description

Integrated steam turbine generator unit

Technical Field

The utility model belongs to the technical field of the steam turbine, concretely relates to integration turbo generator set.

Background

In the prior art, a steam turbine, also called a steam turbine engine, is a rotary steam power plant, and high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and is then sprayed onto blades, so that a rotor provided with blade rows rotates and works externally. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.

In the conventional steam turbine, a steam turbine set and a generator set are usually assembled separately, a rotor of the steam turbine set and a rotor of the generator set are connected by a coupling, and a torque of the steam turbine is transmitted to a generator. The steam turbine set and the generator set are independently assembled, so that the overall assembly volume is increased, the number of parts is large, and the assembly requirement is high; meanwhile, the rotor needs to be centered through coupling connection, vibration can be caused by slight deviation, the rotating speed of the rotor cannot reach high, and therefore working efficiency is low. Chinese patent No. CN 209780975U discloses a 135MW ultrahigh pressure back pressure heat supply reforming steam turbine. The high-pressure generator comprises a high-pressure cylinder, a medium-pressure cylinder, a low-pressure generating cylinder, a generator rotor, a high-medium pressure cylinder rotor, a medium-pressure steam exhaust short pipe, an end adjusting coupler bolt, a low-pressure generating optical axis heat supply rotor, an electric end coupler bolt, a communicating pipe short pipe and a communicating pipe. However, in the above technical solution, the high-pressure wheel cylinder, the intermediate pressure cylinder and the low-pressure power generation cylinder are independent, and a plurality of mechanisms are required to realize connection among them, so that they need to be installed separately when being installed, which causes abnormal trouble in installation.

And use the installation of same root main shaft integration with turboset and generating set and can bring very much benefit, for example turbogenerator's volume will be dwindled, the noise step-down, work efficiency improves, the assembly requirement step-down, product quality obtains promoting etc..

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integration turbo generator set.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an integration turbo generator set, includes integration cylinder body, turbo set rotor, electricity generation set rotor and main shaft, the main shaft is installed between the integration cylinder body, turbo set rotor and electricity generation set rotor all cup joint in the circumference surface of main shaft, and turbo set rotor and electricity generation set rotor all are located the integration cylinder body, the integration cylinder body includes cylinder body and lower cylinder body, and can dismantle between last cylinder body and the lower cylinder body and be connected, go up the cylinder body and connect cylinder body and upper right cylinder body on including upper left cylinder body, T type, and connect the cylinder body on the T type and be fixed in between upper left cylinder body and the upper right cylinder body, the cylinder body includes cylinder body, T type down and connects cylinder body and right lower cylinder body under left cylinder body, T type down, and connect the cylinder body under the T type and be fixed in between lower left cylinder body and the right lower cylinder body.

As an optimization of the utility model, go up and realize dismantling through bolted connection between cylinder body and the lower cylinder body and be connected.

The shaft hole has been seted up with the junction of left side upper cylinder body and left side lower cylinder body, the shaft hole has equally been seted up with the junction of connecting the cylinder body under the T type to connect the cylinder body on the T type, the shaft hole has equally been seted up with the junction of right side lower cylinder body to the upper right cylinder body, the main shaft runs through three shaft hole in proper order, the circumference in shaft hole is fixed with three vapor seal on the surface, and three vapor seal is located three shaft hole respectively, clearance fit between vapor seal and the shaft hole.

The turbine set rotor comprises a turbine impeller, a turbine oil seal ring and a turbine shaft seal sleeve, wherein the turbine oil seal ring and the turbine shaft seal sleeve are arranged in two groups, the two groups of turbine oil seal rings and the two groups of turbine shaft seal sleeves are bilaterally symmetrical, the turbine impeller, the turbine oil seal ring and the turbine shaft seal sleeve are all sleeved on the circumferential surface of the main shaft, and the turbine impeller, the turbine oil seal ring and the turbine shaft seal sleeve are in interference fit with the main shaft.

As an optimization of the utility model, turbine wheel includes turbine wheel blade and turbine movable vane bars, turbine wheel blade and turbine movable vane bars all are provided with a plurality ofly, and turbine movable vane bars are fixed in turbine wheel blade's outer end, and are a plurality of turbine wheel blade uses highly to increase progressively in proper order from the left hand to the right hand for the ladder, and is a plurality of turbine movable vane bar specification is the same.

As an optimization, electricity generation suit rotor includes power generation core, electricity generation retaining ring and electricity generation sliding ring, power generation core, electricity generation retaining ring and electricity generation sliding ring all cup joint in the circumferential surface of main shaft, interference fit between power generation core, electricity generation retaining ring and the electricity generation sliding ring and the main shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) this scheme is through upper left cylinder body, lower left cylinder body, connect the cylinder body and T type down on the T type and connect and form the vapour wheel cylinder between the cylinder body, connect the cylinder body under through T type, the T type, form the electricity generation jar between upper right cylinder body and the lower right cylinder body to realized the integration of vapour wheel cylinder and electricity generation jar, it is fixed through bolted connection spare between upper cylinder body and the lower cylinder body, practiced thrift installation steps, be convenient for simultaneously installation and later maintenance.

(2) The circumference surface of main shaft is located to the cover of this scheme through the turbine suit rotor and electricity generation suit rotor cover, realizes the integration between turbine suit rotor and the electricity generation suit rotor and the main shaft, and the installation is swift convenient.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

fig. 2 is a schematic structural view of the upper cylinder body of the present invention.

In the figure: the main shaft comprises an upper cylinder body 1, an upper left cylinder body 11, an upper right cylinder body 12T-shaped upper connecting cylinder body 13, an upper right cylinder body 2, a lower left cylinder body 21, a lower 22T-shaped connecting cylinder body, a lower right cylinder body 23, a bolt connecting piece 3, a turbine sleeved rotor 4, a turbine impeller 41, a turbine oil seal ring 42, a turbine shaft sleeve 43, a power generation sleeved rotor 5, a power generation iron core 51, a power generation retaining ring 52, a power generation slip ring 53, a shaft hole 6, a steam seal 7 and a main shaft 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, in an embodiment of the present invention, an integrated steam turbine generator set main shaft rotor includes an integrated cylinder, a steam turbine set rotor 4, a power generation set rotor 5 and a main shaft 8, the main shaft 8 is installed between the integrated cylinder, the steam turbine set rotor 4 and the power generation set rotor 5 are both sleeved on the circumferential surface of the main shaft 8, and the turbine rotor 4 and the power generation rotor 5 are both positioned in an integrated cylinder body which comprises an upper cylinder body 1 and a lower cylinder body 2, the upper cylinder body 1 is detachably connected with the lower cylinder body 2, the upper cylinder body 1 comprises a left upper cylinder body 11, a T-shaped upper connecting cylinder body 12 and a right upper cylinder body 13, and the T-shaped upper connecting cylinder 12 is fixed between the left upper cylinder 11 and the right upper cylinder 13, the lower cylinder 2 comprises a left lower cylinder 21, a T-shaped lower connecting cylinder 22 and a right lower cylinder 23, and the T-shaped lower connecting cylinder 22 is fixed between the left lower cylinder 21 and the right lower cylinder 23.

In this embodiment: the left upper cylinder body 11, the left lower cylinder body 21, the T-shaped upper connecting cylinder body 12 and the T-shaped lower connecting cylinder body 22 are connected to form a steam cylinder, the T-shaped upper connecting cylinder body 12, the T-shaped lower connecting cylinder body 22, the right upper cylinder body 13 and the right lower cylinder body 23 are connected to form a power generation cylinder, and due to the connection of the T-shaped upper connecting cylinder body 12 and the T-shaped lower connecting cylinder body 22, the steam cylinder and the power generation cylinder are integrated, so that the problem that the subsequent installation is required to be sequentially carried out to cause installation trouble is solved, and the other structures are elaborated below.

Specifically, the upper cylinder body 1 and the lower cylinder body 2 are detachably connected through a bolt connecting piece 3.

In this embodiment: the bolt connecting piece 3 is composed of a bolt and a nut matched with the bolt, and when the bolt connecting piece is installed, screw holes which correspond to the left upper cylinder body 11, the right upper cylinder body 13, the left lower cylinder body 21 and the right lower cylinder body 23 up and down in position and are matched with threads need to be formed in the left upper cylinder body, the right upper cylinder body, the left lower cylinder body 21 and the right lower cylinder body 23, so that the bolt and the nut matched with the bolt are used for assembling.

Specifically, shaft hole 6 has been seted up to the junction of upper left cylinder 11 and lower left cylinder 21, and shaft hole 6 has been seted up equally to the junction of connecting cylinder body 12 and lower T type connection cylinder body 22 on the T type, and shaft hole 6 has been seted up equally to the junction of upper right cylinder 13 and lower right cylinder 23, and main shaft 8 runs through three shaft hole 6 in proper order, is fixed with three vapor seal 7 on the circumference surface in shaft hole 6, and three vapor seal 7 is located three shaft hole 6 respectively, clearance fit between vapor seal 7 and the shaft hole 6.

In this embodiment: through gland 7's setting, can effectively reduce the gas leakage loss, because be clearance fit between gland 7 and the shaft hole 6, the business turn over of the steam of being convenient for, it needs to explain that, here only explains main shaft 8 and last cylinder 1 and the connection between the lower cylinder 2, in actual operation, still install through the bearing main shaft 8's both ends about, as to how to install and which installation component that needs are technical personnel's in the field well-known technique, simultaneously not the utility model discloses the required technical problem who solves, so do not explain it.

Specifically, the turbine assembly rotor 4 includes a turbine impeller 41, a turbine oil seal ring 42 and a turbine shaft seal sleeve 43, the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 are provided with two sets, and the two sets of the turbine oil seal rings 42 and the turbine shaft seal sleeve 43 are bilaterally symmetrical, one set of the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 is one, the turbine impeller 41, the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 are all sleeved on the circumferential surface of the main shaft 8, and the turbine impeller 41, the turbine oil seal ring 42, the turbine shaft seal sleeve 43 and the main shaft 8 are in interference fit.

In this embodiment: the turbine impeller 41, the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 are all mounted on the main shaft 8 in a shrink fit mode, the turbine impeller 41, the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 are located in a turbine cylinder, the turbine impeller 41, the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 are in clearance fit with the left upper cylinder body 11 and the left lower cylinder body 21, and the turbine oil seal ring 42 and the turbine shaft seal sleeve 43 are all used for keeping good sealing.

Specifically, the turbine wheel 41 includes turbine wheel blade and turbine movable vane grid, and turbine wheel blade and turbine movable vane grid all are provided with a plurality ofly, and turbine movable vane grid is fixed in turbine wheel blade's outer end, and a plurality of turbine wheel blade use highly to increase progressively in proper order from left to right as the ladder to arrange, and a plurality of turbine movable vane grid specifications are the same.

Specifically, the power generation set rotor 5 includes a power generation core 51, a power generation guard ring 52 and a power generation slip ring 53, the power generation guard ring 52 and the power generation slip ring 53 are both sleeved on the circumferential surface of the main shaft 8, and the power generation core 51, the power generation guard ring 52 and the power generation slip ring 53 are in interference fit with the main shaft 8.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an integration turbo generator unit, includes integration cylinder body, turbo set rotor (4), electricity generation set rotor (5) and main shaft (8) are installed between the integration cylinder body, turbo set rotor (4) and electricity generation set rotor (5) all cup joint in the circumference surface of main shaft (8), and turbo set rotor (4) and electricity generation set rotor (5) all are located integration cylinder body, its characterized in that: the integrated cylinder body comprises an upper cylinder body (1) and a lower cylinder body (2), the upper cylinder body (1) is detachably connected with the lower cylinder body (2), the upper cylinder body (1) comprises an upper left cylinder body (11), a T-shaped upper connecting cylinder body (12) and an upper right cylinder body (13), the T-shaped upper connecting cylinder body (12) is fixed between the upper left cylinder body (11) and the upper right cylinder body (13), the lower cylinder body (2) comprises a lower left cylinder body (21), a lower T connecting cylinder body (22) and a lower right cylinder body (23), and the lower T-shaped connecting cylinder body (22) is fixed between the lower left cylinder body (21) and the lower right cylinder body (23).

2. The integrated steam turbine generator unit of claim 1, wherein: go up and realize dismantling through bolted connection spare (3) between cylinder body (1) and the lower cylinder body (2) and be connected, realize dismantling through two bolted connection spare (3) between upper left cylinder body (11) and the lower left cylinder body (21) and be connected, realize dismantling through two bolted connection spare (3) between upper right cylinder body (13) and the lower right cylinder body (23) equally and be connected.

3. The integrated steam turbine generator unit of claim 1, wherein: shaft hole (6) have been seted up to the junction of cylinder body (11) and lower left cylinder body (21) on a left side, shaft hole (6) have been seted up equally to the junction of connecting cylinder body (22) under connecting cylinder body (12) and the T type on the T type, shaft hole (6) have been seted up equally to the junction of cylinder body (13) and lower right cylinder body (23) on the upper right side, main shaft (8) run through three shaft hole (6) in proper order, the circumference of shaft hole (6) is fixed with three vapor seal (7) on the surface, and three vapor seal (7) are located three shaft hole (6) respectively, clearance fit between vapor seal (7) and shaft hole (6).

4. The integrated steam turbine generator unit of claim 1, wherein: the turbine set rotor (4) comprises a turbine impeller (41), a turbine oil seal ring (42) and a turbine shaft envelope (43), the turbine oil seal ring (42) and the turbine shaft envelope (43) are arranged in two groups, the two groups of turbine oil seal rings (42) and the turbine shaft envelope (43) are bilaterally symmetrical, the number of the one group is one, the turbine impeller (41), the turbine oil seal ring (42) and the turbine shaft envelope (43) are all sleeved on the circumferential surface of the main shaft (8), and the turbine impeller (41), the turbine oil seal ring (42), the turbine shaft seal sleeve (43) and the main shaft (8) are in interference fit.

5. An integrated turbo unit according to claim 4, wherein: the turbine impeller (41) comprises turbine impeller blades and turbine movable blade grids, the turbine impeller blades and the turbine movable blade grids are multiple in number, the turbine movable blade grids are fixed at the outer ends of the turbine impeller blades, the turbine impeller blades are sequentially arranged in an increasing mode from left to right by taking the height as a step, and the turbine movable blade grids are the same in specification.

6. The integrated steam turbine generator unit of claim 1, wherein: the power generation set rotor (5) comprises a power generation iron core (51), a power generation protective ring (52) and a power generation slip ring (53), wherein the power generation iron core (51), the power generation protective ring (52) and the power generation slip ring (53) are all sleeved on the circumferential surface of the main shaft (8), and the power generation iron core (51), the power generation protective ring (52), the power generation slip ring (53) and the main shaft (8) are in interference fit.