CN219472165U - Water-jet steam extraction device of steam turbine - Google Patents

Abstract

The utility model relates to the technical field of water injection and steam extraction devices, in particular to a water injection and steam extraction device of a steam turbine. The technical proposal comprises: protection casing, bearing, connecting cover, pivot and communicating pipe, the connecting cover is all pegged graft to protection casing both sides outer wall, connecting pipe is installed in grafting of connecting cover one side outer wall, protection casing inner wall both sides all imbeds and install the bearing, the pivot is installed in the inside rotation of bearing, the support frame is installed in the inside rotation of pivot, communicating pipe is installed to support frame one side outer wall, communicating pipe inside is provided with the filter core, through setting up pivot, filter core and connecting cover, has reached and has carried out filterable effect to the circulating water, guarantees the cleanliness of circulating water, makes the inside dirty thing of filter core break away from, guarantees the cleanliness of filter core, guarantees the filter efficiency of filter core to the circulating water.

Description

Water-jet steam extraction device of steam turbine

Technical Field

The utility model relates to the technical field of water injection and steam extraction devices, in particular to a water injection and steam extraction device of a steam turbine.

Background

The steam turbine is a rotary power machine which converts the energy of steam into mechanical work and is mainly used as a prime mover for power generation, and can also directly drive various pumps, fans, compressors, ship propellers and the like, and in the use process of the steam turbine, the water injection air extraction equipment is equipment for maintaining the vacuum of a condenser in the steam turbine, and the running state plays an important role in the safety and economy of a steam turbine unit.

Patent publication number CN202451473U discloses a water jet steam extraction device of a thermal power generation steam turbine. One end of the water pump is connected with the water steam extractor through a pipeline, the other end of the water pump is connected with the water return pipe A of the condenser, and the water steam extractor is connected with the pipeline of the condenser; the other end of the jet water steam extractor is connected with a water return pipe B of the condenser through a pipeline, and the distance between the A and the B is more than 20 meters. It is scale-proof and water-saving.

In the prior art CN202451473U, although the circulating water is treated by adding chemicals, when the new water is replenished to flow inside the pipeline, the new water contains granular foreign matters, but lacks a filtering structure for the new water.

Disclosure of Invention

The utility model aims to provide a water injection and steam extraction device of a steam turbine, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a steam turbine water jet extraction device, includes protection casing, bearing, connecting cover, pivot and communicating pipe, the connecting cover is all pegged graft and is installed to protection casing both sides outer wall, connecting pipe is pegged graft and is installed to connecting cover one side outer wall, the bearing is all embedded in protection casing inner wall both sides, the pivot is installed in bearing internal rotation, the support frame is installed in pivot internal rotation, communicating pipe is installed to support frame one side outer wall, communicating pipe inside is provided with the filter core.

When the steam turbine water-jet steam extraction device in the technical scheme is used, circulating water flows in the pipeline body and is filtered by the filter element, so that the cleanliness of the circulating water is guaranteed, the motor body drives the rotating shaft and the communicating pipe to rotate, the positions of the two communicating pipes are changed, the clean filter element is positioned between the pipeline bodies, flushing liquid enters the connecting cover through the connecting pipe and back flushing is carried out on the filter element, and dirt in the filter element is separated.

Preferably, the outer walls of two sides of the protective cover, which deviate from the connecting cover, are respectively provided with a pipeline body in an inserted connection mode, and the pipeline bodies are consistent with the inner diameter of the connecting cover. The circulating water flows inside the pipe body.

Preferably, the number of the communicating pipes is two, and the size of the communicating pipes is larger than that of the connecting cover.

Preferably, the outer walls of the two sides of the communicating pipe are respectively fixedly attached with a sealing ring, and the sealing rings are contacted with the inner wall of the protective cover. The sealing washer can guarantee the leakproofness between communicating pipe and junction housing and the pipeline body respectively.

Preferably, the rotating shaft penetrates through the outer wall of one end of the protective cover and is provided with a motor body, and the motor body is connected with the outer wall of the protective cover. The motor body can drive the rotating shaft to rotate.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the effect of filtering circulating water is achieved by arranging the rotating shaft, the filter element and the connecting cover, the circulating water flows in the pipeline body and is filtered by the filter element, so that the cleanliness of the circulating water is ensured, the motor body drives the rotating shaft and the communicating pipe to rotate, and the positions of the two communicating pipes are changed, so that the clean filter element is positioned between the pipeline bodies, flushing liquid enters the connecting cover through the connecting pipe and back-washes the filter element, dirt in the filter element is separated, the cleanliness of the filter element is ensured, and the filtering efficiency of the filter element on the circulating water is ensured.

Drawings

FIG. 1 is a schematic cross-sectional view of a protective cover structure of the present utility model;

FIG. 2 is a schematic bottom view of a shield structure according to the present utility model;

fig. 3 is an enlarged schematic view of the structure of the communication pipe of the present utility model.

In the figure: 1. a protective cover; 11. a pipe body; 12. a connection cover; 13. a connecting pipe; 2. a bearing; 21. a rotating shaft; 22. a support frame; 23. a communicating pipe; 24. a filter element; 25. a seal ring; 26. a motor body.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, two embodiments of the present utility model are provided:

embodiment one: the utility model provides a steam turbine water-jet steam extraction device, including protection casing 1, bearing 2, connecting cover 12, pivot 21 and communicating pipe 23, connecting cover 12 is all pegged graft to the outer wall of protection casing 1 both sides, connecting pipe 13 is pegged graft and is installed to connecting cover 12 one side outer wall, and bearing 2 is all embedded to the 1 inner wall both sides of protection casing, and pivot 21 is installed in bearing 2 inside rotation, and support frame 22 is installed in pivot 21 inside rotation, and communicating pipe 23 is installed to support frame 22 one side outer wall, and communicating pipe 23 inside is provided with filter core 24.

The outer walls of the two sides of the protective cover 1, which deviate from the connecting cover 12, are respectively provided with a pipeline body 11 in a plugging manner, and the inner diameters of the pipeline bodies 11 and the connecting cover 12 are consistent. The circulating water flows in the pipeline body 11, and is filtered by the filter element 24, so that the cleanliness of the circulating water is ensured.

Embodiment two: the utility model provides a steam turbine water-jet steam extraction device, including protection casing 1, bearing 2, connecting cover 12, pivot 21 and communicating pipe 23, connecting cover 12 is all pegged graft to the outer wall of protection casing 1 both sides, connecting pipe 13 is pegged graft and is installed to connecting cover 12 one side outer wall, and bearing 2 is all embedded to the 1 inner wall both sides of protection casing, and pivot 21 is installed in bearing 2 inside rotation, and support frame 22 is installed in pivot 21 inside rotation, and communicating pipe 23 is installed to support frame 22 one side outer wall, and communicating pipe 23 inside is provided with filter core 24.

The number of communication pipes 23 is two, and the size of communication pipes 23 is larger than that of connection hood 12.

The outer walls of the two sides of the communicating pipe 23 are respectively fixedly attached with a sealing ring 25, and the sealing rings 25 are contacted with the inner wall of the protective cover 1. The seal ring 25 can ensure the tightness between the communication pipe 23 and the connection cover 12 and the pipe body 11, respectively.

The shaft 21 penetrates through the outer wall of one end of the protection cover 1, and as is well known to those skilled in the art, the water-jet steam extraction device of the present utility model also needs to provide the motor body 26 to enable the motor body to work normally, and as is well known to those skilled in the art, the provision of the motor body 26 is common and known to conventional means or common general knowledge, and will not be repeated herein, and those skilled in the art can perform any optional matching according to the needs or convenience of the motor body 26 and the outer wall of the protection cover 1. The motor body 26 can drive the rotating shaft 21 to rotate, and the motor body 26 drives the rotating shaft 21 and the communicating pipes 23 to rotate, so that the positions of the two communicating pipes 23 are exchanged, the clean filter element 24 is positioned between the pipeline bodies 11, flushing liquid enters the inside of the connecting cover 12 through the connecting pipe 13 and backflushes the filter element 24, dirt in the filter element 24 is separated, the cleanliness of the filter element 24 is ensured, and the filtering efficiency of the filter element 24 to circulating water is ensured.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in 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.

Claims (5)

1. The utility model provides a steam turbine water injection extraction device, includes protection casing (1), bearing (2), connecting cover (12), pivot (21) and communicating pipe (23), its characterized in that: the utility model discloses a protection casing, including protection casing (1), connecting cover (12) one side outer wall grafting is installed, connecting pipe (13) are installed to protection casing (1) inner wall both sides embedding installation bearing (2), pivot (21) are installed in bearing (2) inside rotation, support frame (22) are installed in pivot (21) inside rotation, communicating pipe (23) are installed to support frame (22) one side outer wall, communicating pipe (23) inside is provided with filter core (24).

2. A steam turbine water jet extraction apparatus as defined in claim 1 wherein: the pipeline body (11) is inserted and installed on the outer walls of two sides of the protection cover (1) deviating from the connecting cover (12), and the inner diameter of the pipeline body (11) is consistent with that of the connecting cover (12).

3. A steam turbine water jet extraction apparatus as defined in claim 1 wherein: the number of the communicating pipes (23) adopts two designs, and the size of the communicating pipes (23) is larger than that of the connecting cover (12).

4. A steam turbine water jet extraction apparatus as defined in claim 1 wherein: the outer walls of two sides of the communicating pipe (23) are fixedly attached with sealing rings (25), and the sealing rings (25) are contacted with the inner wall of the protective cover (1).

5. A steam turbine water jet extraction apparatus as defined in claim 1 wherein: the rotating shaft (21) penetrates through the outer wall of one end of the protective cover (1) and is provided with a motor body (26), and the motor body (26) is connected with the outer wall of the protective cover (1).