CN218820495U

CN218820495U - Thermal power plant unit faces stove and gets wind structure

Info

Publication number: CN218820495U
Application number: CN202220733870.XU
Authority: CN
Inventors: 王彦海; 殷威; 王鑫; 马杰
Original assignee: Dandong Power Plant of Huaneng International Power Co Ltd
Current assignee: Dandong Power Plant of Huaneng International Power Co Ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2023-04-07
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a thermal power plant unit faces stove structure of fetching wind relates to the thermal power plant unit and faces stove field of fetching wind, including being responsible for, generating set A, generating set B, hot pipeline of unit, baffle, the middle part intercommunication of being responsible for has two sets of branch pipes, and is two sets of all be provided with an electrically operated gate and a check door on the branch pipe, the electrically operated gate rotates the centrum structure that is provided with the automatically controlled baffle of multiunit and constitutes, and is a set of centrum structure point end orientation generating set A that electrically operated gate multiunit baffle on the branch pipe is organized another the centrum structure point end orientation generating set B that electrically operated gate multiunit baffle on the branch pipe is constituteed, the branch pipe is provided with the check door in the opposite direction of the most advanced orientation of centrum structure that electrically operated gate multiunit baffle is constituteed, the flow direction of check door is electrically operated gate towards generating set A or generating set B. The utility model discloses reduce fuel cost by a wide margin, guaranteed the sealing performance of electrically operated gate and the life of electrically operated gate.

Description

Thermal power plant unit faces stove and gets wind structure

Technical Field

The utility model relates to a thermal power plant unit faces stove field of getting wind specifically is a thermal power plant unit faces stove structure of getting wind.

Background

At present, when a thermal power plant unit is started in a cold state, in order to prevent metal equipment from generating excessive thermal stress, a thermal power plant specifies strict temperature rise and pressure rise rates, the cold state starting of the unit is a slow heating process, and a large thermal power generator generally needs more than ten hours to start.

The temperature of flue gas discharged from a hearth at the initial stage of ignition of the existing boiler hearth is low, and primary air entering an air preheater cannot dry pulverized coal in a coal mill at a required temperature because the primary air is not heated by high-temperature flue gas.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a thermal power plant unit faces stove and gets wind structure to it is higher owing to all be equipped with the hydraulic oil system alone and lay equipment cost to solve current thermal power plant coal pulverizer grinding roller, axial-flow type forced draught blower movable vane, and the technical problem that equipment use cost is high.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a thermal power plant unit faces stove and gets wind structure, is including being responsible for, generating set A, generating set B, hot pipeline of unit, baffle, the hot pipeline of unit that generating set A and generating set B are connected respectively at the both ends of being responsible for, the middle part intercommunication of being responsible for has two sets of branch pipes, and is two sets of all be provided with an electrically operated gate and a check door on the branch pipe, the electrically operated gate rotates the centrum structure that is provided with the automatically controlled baffle of multiunit and constitutes, and is a set of centrum structure point end orientation generating set A that the electrically operated gate multiunit baffle on the branch pipe is constituteed, another group centrum structure point end orientation generating set B that the electrically operated gate multiunit baffle on the branch pipe is constituteed, the branch pipe is provided with the check door in the opposite direction of the most end orientation of centrum structure that electrically operated gate multiunit baffle is constituteed, the flow direction of check door is electrically operated gate towards generating set A or generating set B.

By adopting the technical scheme, the fuel cost is greatly reduced, and the sealing performance of the electric door and the service life of the electric door are ensured.

The utility model discloses further set up to, the center of electrically operated gate is provided with square vent.

Through adopting above-mentioned technical scheme, through the unit heat primary pipe of vent intercommunication motor unit A and generating set B.

The utility model discloses further set up to, output motor up is installed through the motor frame to the bottom of branch pipe in electrically operated gate one side, the output of motor is connected with the reducing gear box.

By adopting the technical scheme, the motor position reduction box provides power to further rotate the driving shaft.

The utility model discloses further set up to, the output of reducing gear box is connected with the driving shaft that sets up in vent one side, the front end of driving shaft rotates through the bevel gear and connects the long transmission shaft that sets up on vent top and opposite side, one side long transmission shaft bottom rotates through the bevel gear and connects the short transmission shaft that sets up in the vent bottom.

By adopting the technical scheme, the driving shaft is rotated, so that the plurality of groups of rotating shafts around the ventilation opening can be rotated simultaneously.

The utility model discloses further set up to, the one end that the driving shaft was kept away from to the both ends of long transmission shaft, the top of driving shaft, short transmission shaft all is provided with the bevel gear.

By adopting the technical scheme, synchronous rotation of a plurality of groups of rotating shafts is ensured.

The utility model discloses further set up to, driving shaft, long transmission shaft, short transmission shaft all connect the one side at the electrically operated gate ventilation opening through the baffle pivot.

Through adopting above-mentioned technical scheme, make the connection that multiunit pivot can be stable on the electrically operated gate.

The utility model discloses further set up to, the multiunit the baffle pivot is rotated and is connected with the baffle that is triangle-shaped, the multiunit the cone structure is constituteed to the baffle when the electric door is closed.

Through adopting above-mentioned technical scheme, guarantee the sealing performance of electrically operated gate when closing, can prolong electrically operated gate's life simultaneously.

To sum up, the utility model discloses mainly have following beneficial effect:

the utility model discloses an installation two sets of contact pipelines between the hot pipeline of two adjacent unit flue-gas wind systems, install the electrically operated gate in the pipeline, when the unit cold state starts, open this motor-driven flashboard door, the hot wind of high temperature of utilizing adjacent operation unit comes the dry buggy that will start in the unit coal-grinding machine, satisfy buggy burning condition, this kind just can replace diesel oil with the buggy and carry out unit cold state start, when the exhaust gas temperature of this unit, wind temperature reaches the back of requiring, reuse the hot wind of this unit, close the motor-driven flashboard door on the contact pipe, the hot wind of the adjacent unit of parking use, reduce fuel cost by a wide margin, improve thermal power plant economic benefits, when two sets of units normally work, conical electrically operated gate point end is towards hot pipeline wind direction, wind oppresses the multi-disc baffle, the sealing performance of electrically operated gate and electrically operated gate's life has been guaranteed, prevent that electrically operated gate from not opening the production deformation in the pipeline for a long time.

Drawings

FIG. 1 is a diagram of an adjacent furnace air intake system;

FIG. 2 is a connection diagram of the pipeline of the present invention;

FIG. 3 is a front view of the electric door of the present invention;

fig. 4 is a side view of the electric door of the present invention.

In the figure: 1. a main pipe; 2. a branch pipe; 3. an electrically operated door; 4. a one-way door; 5. a motor; 6. a reduction gearbox; 7. a drive shaft; 8. a long transmission shaft; 9. a short drive shaft; 10. a baffle plate rotating shaft; 11. a baffle plate; 12. a bevel gear; 13. and a vent.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Next, an embodiment of the present invention will be described with reference to the overall structure thereof.

A thermal power plant unit faces stove and gets wind structure, as shown in figure 1-4, including being responsible for 1, generating set A, generating set B, hot primary pipe of unit, baffle 11, the hot primary pipe of unit that both ends of being responsible for 1 connect generating set A and generating set B respectively, the middle part of being responsible for 1 communicates two sets of branch pipes 2, two sets of branch pipes 2 are all provided with an electrically operated door 3 and a one-way door 4, the electrically operated door 3 rotates the cone structure formed by multiunit electrically controlled baffle 11, the cone structure pointed end formed by multiunit baffle 11 of the electrically operated door 3 on one set of branch pipe 2 faces generating set A, the cone structure pointed end formed by multiunit baffle 11 of the electrically operated door 3 on another set of branch pipe 2 faces generating set B, branch pipe 2 is provided with one-way door 4 in the opposite direction of the most advanced orientation of centrum structure that 3 multiunit baffles 11 of electrically-operated gate constitute, the flow direction of one-way door 4 is electrically-operated gate 3 towards generating set A or generating set B, the hot primary air pipe of one side unit reaches the branch pipe through being responsible for 1, be stopped by one-way door 4 in a set of branch pipe 2, electrically-operated gate 3 opened from the opposite side is through opening one-way door 4 of 3 one side branch pipes of electrically-operated gate 2, flow into the unit of opposite side through being responsible for 1, electrically-operated gate 3 is the most advanced orientation of toper structure that its multiunit baffles 11 constitute under the circumstances of closing is responsible for 1 direction of coming wind, be responsible for the interior wind pressure of 1 and move multiunit baffle 11, the toper structure that makes multiunit baffle 11 constitute is more firm, the sealing performance of electrically-operated gate 3 has been guaranteed, can prolong electrically-operated gate 3's life simultaneously.

Referring to fig. 3, a square vent 13 is disposed in the center of the electric door 3, a unit hot primary pipeline of the motor unit a and the generator unit B is communicated through the vent 13, the motor 5 with an upward output end is mounted at the bottom end of one side of the electric door 3 through a motor frame on the branch pipe 2, the output end of the motor 5 is connected with the reduction gearbox 6, power is provided through the motor 5-position reduction gearbox 6, and the drive shaft 7 is rotated, the output end of the reduction gearbox 6 is connected with the drive shaft 7 disposed at one side of the vent 13, the front end of the drive shaft 7 is rotatably connected with the long drive shaft 8 disposed at the top end of the vent 13 and the other side through a bevel gear 12, the bottom end of the long drive shaft 8 at one side is rotatably connected with the short drive shaft 9 disposed at the bottom end of the vent 13 through a bevel gear 12, so that the drive shaft 7 rotates to simultaneously, both ends of the long drive shaft 8, the top end of the drive shaft 7 and the short drive shaft 9 are both provided with bevel gears 12, thereby ensuring simultaneous and synchronous rotation of the multiple sets of the drive shafts, the drive shaft 7, the long drive shaft 8 and the short drive shaft 9 are connected to one side of the vent 13 through a baffle 10, so that the vent 3 can be stably connected to one side of the multiple sets of the drive shaft.

Referring to fig. 4, the plurality of sets of baffle rotating shafts 10 are rotatably connected with the triangular baffles 11, and the plurality of sets of baffles 11 form a cone structure when the electric door 3 is closed, so that the sealing performance of the electric door 3 when closed is ensured, and the service life of the electric door 3 can be prolonged.

The utility model discloses a theory of operation does: the hot primary air pipe of the unit on one side reaches the branch pipe through the main pipe 1 and is blocked by the one-way door 4 in the branch pipe 2, the electric door 3 opened from the other side opens the one-way door 4 of the branch pipe 2 on one side of the electric door 3, and flows into the unit on the other side through the main pipe 1, the tip of the conical structure formed by the multiple groups of baffles 11 of the electric door 3 faces the incoming air direction of the main pipe 1 under the condition of closing, the air pressure in the main pipe 1 drives the multiple groups of baffles 11, so that the conical structure formed by the multiple groups of baffles 11 is more fastened, the sealing performance of the electric door 3 is ensured, meanwhile, the service life of the electric door 3 can be prolonged, when the unit hot primary air pipes on the two sides of the main pipe 1 need to be opened by opening the electric door 3, the motor 5 is started, the output end of the motor 5 rotates the driving shaft 7 after being decelerated by the connected reduction gearbox 6, when the driving shaft 7 rotates, the bevel gears 12 of the long transmission shaft 8 and the short transmission shaft 9 rotate the two groups of the long transmission shafts 8 and the short transmission shaft 9, so that the two groups of the long transmission shafts 8 and the short transmission shaft 9 simultaneously rotate synchronously, when the driving shaft 7, the long transmission shaft 8 and the short transmission shaft 9 rotate, the multiple groups of the hot primary air pipes of the main pipe 1 and the main pipe 1, and the hot primary air pipes on the main pipe 1 need to be closed, and the motor when the main pipe 1, and the unit, and the hot primary air pipes need to be controlled by reversing.

Although embodiments of the present invention have been shown and described, it is intended that the present embodiments be illustrative only and not limiting to the invention, and that the particular features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples, and that modifications, substitutions, variations, and the like, which are not inventive in light of the above teachings, may be made to the embodiments by those skilled in the art without departing from the principles and spirit of the present invention, but are to be construed as broadly as the following claims.

Claims

1. The utility model provides a thermal power plant unit faces stove and gets wind structure, includes and is responsible for (1), generating set A, generating set B, hot pipeline of unit, baffle (11), its characterized in that: be responsible for the unit heat primary duct way that generating set A and generating set B were connected respectively at the both ends of (1), the middle part intercommunication of being responsible for (1) has two sets of branch pipes (2), and is two sets of all be provided with an electrically operated gate (3) and one check door (4) on branch pipe (2), electrically operated gate (3) are rotated and are provided with the centrum structure that multiunit automatically controlled baffle (11) is constituteed, and are a set of centrum structure point end orientation generating set A that electrically operated gate (3) multiunit baffle (11) on branch pipe (2) is constituteed, another group centrum structure point end orientation generating set B that electrically operated gate (3) multiunit baffle (11) on branch pipe (2) are constituteed, branch pipe (2) are provided with check door (4) in the opposite direction of the most advanced orientation of centrum structure that electrically operated gate (3) multiunit baffle (11) are constituteed, the flow direction of check door (4) is electrically operated gate (3) towards generating set A or generating set B.

2. The thermal power plant unit faces stove structure of getting wind of claim 1 characterized in that: the center of the electric door (3) is provided with a square ventilation opening (13).

3. The thermal power plant unit faces stove structure of intaking of claim 1 characterized by: the motor (5) with the upward output end is installed at the bottom end of the branch pipe (2) on one side of the electric door (3) through a motor frame, and the output end of the motor (5) is connected with a reduction gearbox (6).

4. The thermal power plant unit faces stove structure of intaking of claim 3, characterized in that: the output end of the reduction gearbox (6) is connected with a driving shaft (7) arranged on one side of the ventilation opening (13), the front end of the driving shaft (7) is rotatably connected with a long transmission shaft (8) arranged on the top end of the ventilation opening (13) and the other side through a bevel gear (12), and the bottom end of the long transmission shaft (8) on one side is rotatably connected with a short transmission shaft (9) arranged on the bottom end of the ventilation opening (13) through the bevel gear (12).

5. The thermal power plant unit faces stove structure of intaking of claim 4, characterized by: and bevel gears (12) are arranged at two ends of the long transmission shaft (8), the top end of the driving shaft (7) and one end of the short transmission shaft (9) far away from the driving shaft (7).

6. The thermal power plant unit faces stove structure of intaking of claim 4, characterized by: the driving shaft (7), the long transmission shaft (8) and the short transmission shaft (9) are connected to one side of a ventilation opening (13) of the electric door (3) through a baffle rotating shaft (10).

7. The thermal power plant unit faces stove structure of getting wind of claim 6 characterized in that: the baffle pivot (10) of multiunit rotate and be connected with baffle (11) that are triangle-shaped, the multiunit baffle (11) form the cone structure when electrically operated gate (3) are closed.