CN213175733U

CN213175733U - Leakage protection device for thermal power plant

Info

Publication number: CN213175733U
Application number: CN202022326319.7U
Authority: CN
Inventors: 范开文; 郑星; 林璐; 张斌; 安邦; 林鹏飞; 张敏
Original assignee: Linhe Thermal Power Plant of Northern United Power Co Ltd
Current assignee: Linhe Thermal Power Plant of Northern United Power Co Ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-05-11
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a thermal power factory leaks protection device relates to thermal power technical field. The utility model discloses a steam turbine pipeline with valve, the outside of steam turbine pipeline with valve sets up guard box mechanism, and guard box mechanism bottom side is provided with chassis structure, and guard box mechanism includes the main tank subassembly and sets up the auxiliary tank subassembly in main tank subassembly one side, and the main tank subassembly is including protecting the main tank, and the main pipe groove has been seted up to the side of protection main tank, and the equal fixed mounting in bottom side both ends of protection main tank has main stopper. The utility model discloses a steam turbine pipeline that main protection case and auxiliary protection case mutually supported will have the valve seals, can prevent effectively that steam from leaking and take place dangerously, and audible-visual annunciator work in time reminds personnel steam turbine pipeline to take place steam leakage during steam leakage, is convenient for maintain the maintenance to steam turbine pipeline and handles, is favorable to improving the maintenance work efficiency of steam turbine pipeline.

Description

Leakage protection device for thermal power plant

Technical Field

The utility model belongs to the technical field of thermal power, especially, relate to a thermal power factory leaks protection device.

Background

A thermal power plant, called thermal power plant for short, is a plant for producing electric energy by using combustible materials as fuel, and the basic production process is as follows: the fuel heats water to generate steam when burning, chemical energy of the fuel is converted into heat energy, the steam pressure pushes the steam turbine to rotate, the heat energy is converted into mechanical energy, then the steam turbine drives the generator to rotate, the mechanical energy is converted into electric energy, the power is generated by utilizing the pressure drop in the process that high-temperature and high-pressure steam or steam is converted into low-pressure air or condensed water through the turbine, and in order to prevent potential safety hazards caused by steam leakage, the steam turbine pipeline with a valve needs to be matched with a leakage protection device.

However, the traditional leakage protection device for the thermal power plant cannot timely remind people of steam turbine pipelines with valves to generate steam leakage in the using process, the protection box mechanism is difficult to disassemble and assemble on the steam turbine pipelines, the steam turbine pipelines are inconvenient to maintain, overhaul and process, and the maintenance and overhaul work efficiency of the steam turbine pipelines is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thermal power factory leaks protection device, through setting up guard box mechanism and chassis mechanism, solved traditional thermal power factory and leaked protection device in the use, can not in time remind the steam turbine pipeline that the personnel have the valve to take place steam leakage, guard box mechanism is difficult to dismantle the installation on the steam turbine pipeline, is not convenient for maintain the turbine pipeline and overhauls the processing, reduces the problem of the maintenance work efficiency of steam turbine pipeline.

In order to solve the technical problem, the utility model discloses a realize through following technical side:

the utility model relates to a leakage protection device of a thermal power plant, which comprises a steam turbine pipeline with a valve, wherein a protection box mechanism is arranged outside the steam turbine pipeline with the valve, a bottom frame mechanism is arranged at the bottom side of the protection box mechanism, and the protection box mechanism comprises a main box assembly and an auxiliary box assembly arranged at one side of the main box assembly;

the main box assembly comprises a main protection box, a main pipe groove is formed in the side face of the main protection box, a controller is fixedly mounted at one end of the main protection box, an audible and visual alarm is fixedly mounted at the upper end of the controller, main limiting blocks are fixedly mounted at two ends of the bottom side of the main protection box, a main transmission block is fixedly mounted on the surface of the bottom end of the main protection box, a steam pressure sensor is fixedly mounted on the inner side of the main protection box, and a sealing gasket is fixedly mounted on the surface of the main protection box;

the auxiliary box assembly comprises a protection auxiliary box, an auxiliary pipe groove is formed in the side face of the protection auxiliary box, auxiliary limit blocks are fixedly mounted at two ends of the bottom side of the protection auxiliary box, an auxiliary transmission block is fixedly mounted at the bottom end of the protection auxiliary box, a sealing groove is formed in the surface of the protection auxiliary box, the chassis mechanism comprises a fixed chassis, a motor is fixedly mounted at one end of the fixed chassis, an output shaft of the motor is fixedly connected with an assembling screw rod, the main transmission block and the auxiliary transmission block are connected with the assembling screw rod in a threaded mode, two limit rods are symmetrically and fixedly mounted at the upper end of the fixed chassis, the limit rods penetrate through the main limit blocks and the auxiliary limit blocks in a movable mode, and a support column is fixedly connected to the bottom end of.

Preferably, the cross-sectional shapes of the main pipe groove and the auxiliary pipe groove are both semicircular, and the diameter sizes of the main pipe groove and the auxiliary pipe groove are both matched with the outer diameter size of a steam turbine pipeline with a valve.

Preferably, the output end of the steam pressure sensor is electrically connected with the input end of the controller, and the output end of the controller is electrically connected with the input end of the audible and visual alarm.

Preferably, the front end surface of the assembling screw is provided with a positive thread, the rear end surface of the assembling screw is provided with a negative thread, and the thread theory of the positive thread is opposite to that of the negative thread.

Preferably, a bearing seat is fixedly installed on the side face of the fixed underframe, and one end of the assembling screw is rotatably connected with the bearing seat.

Preferably, the sealing gasket is a rubber component, and the size of the sealing gasket is matched with that of the sealing groove.

The utility model discloses following beneficial effect has:

the utility model discloses a steam turbine pipeline that main protection case and auxiliary protection case mutually supported will have the valve seals, can prevent effectively that steam from leaking and take place dangerously, and steam pressure sensor can carry out real-time supervision to steam, and audible-visual annunciator work in time reminds personnel steam turbine pipeline to take place steam leakage during steam leakage, and the convenient simple of installation is dismantled to protection case mechanism on steam turbine pipeline, is convenient for maintain the maintenance to steam turbine pipeline and handles, is favorable to improving the maintenance work efficiency of steam turbine pipeline.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a leakage protection device of a thermal power plant;

FIG. 2 is a perspective view of the main tank assembly;

FIG. 3 is a cross-sectional view of the main tank assembly;

FIG. 4 is a schematic structural view of the subtank assembly;

FIG. 5 is a schematic structural view of the undercarriage mechanism;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a turbine pipeline with a valve; 2. a protection box mechanism; 3. a main tank assembly; 301. protecting the main box; 302. a main pipe groove; 303. an audible and visual alarm; 304. a controller; 305. a main limiting block; 306. a main transmission block; 307. a steam pressure sensor; 308. a gasket; 4. a sub-tank assembly; 401. protecting the auxiliary box; 402. a secondary pipe groove; 403. an auxiliary limiting block; 404. a secondary transmission block; 405. a sealing groove; 5. an undercarriage mechanism; 501. fixing the underframe; 502. a motor; 503. a bearing seat; 504. assembling a screw rod; 505. a limiting rod; 506. and (4) a support column.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention relates to a leakage protection device for a thermal power plant, which includes a steam turbine pipeline 1 with a valve, a protection box mechanism 2 is disposed outside the steam turbine pipeline 1 with the valve, a chassis mechanism 5 is disposed on the bottom side of the protection box mechanism 2, and the protection box mechanism 2 includes a main box assembly 3 and an auxiliary box assembly 4 disposed on one side of the main box assembly 3;

the main tank assembly 3 comprises a main protection tank 301, a main pipe groove 302 is formed in the side surface of the main protection tank 301, a controller 304 is fixedly mounted at one end of the main protection tank 301, an audible and visual alarm 303 is fixedly mounted at the upper end of the controller 304, main limiting blocks 305 are fixedly mounted at two ends of the bottom side of the main protection tank 301, a main transmission block 306 is fixedly mounted on the surface of the bottom end of the main protection tank 301, a steam pressure sensor 307 is fixedly mounted on the inner side of the main protection tank 301, and a sealing gasket 308 is fixedly mounted on the surface of the main protection tank 301;

auxiliary tank subassembly 4 is including protection auxiliary tank 401, auxiliary pipe groove 402 has been seted up to protection auxiliary tank 401's side, the equal fixed mounting in bottom side both ends of protection auxiliary tank 401 has vice stopper 403, the bottom fixed surface of protection auxiliary tank 401 installs vice driving block 404, seal groove 405 has been seted up on protection auxiliary tank 401's surface, chassis mechanism 5 is including fixed chassis 501, the fixed mounting in one end of fixed chassis 501 has motor 502, the output shaft fixedly connected with assembly screw 504 of motor 502, main driving block 306 all with assembly screw 504 threaded connection with vice driving block 404, the upper end symmetry fixed mounting of fixed chassis 501 has two gag lever posts 505, gag lever post 505 activity runs through in main stopper 305 and vice stopper 403, the bottom fixedly connected with support column 506 of fixed chassis 501.

Further, the cross-sectional shapes of the main pipe groove 302 and the auxiliary pipe groove 402 are both semicircular, and the diameter sizes of the main pipe groove 302 and the auxiliary pipe groove 402 are both matched with the outer diameter size of the turbine pipeline 1 with a valve, so that the purpose that the turbine pipeline 1 with the valve can be matched with and pass through the main pipe groove 302 and the auxiliary pipe groove 402 is achieved.

Further, the output end of the steam pressure sensor 307 is electrically connected with the input end of the controller 304, and the output end of the controller 304 is electrically connected with the input end of the audible and visual alarm 303, so that the purpose of controlling the audible and visual alarm 303 to work is achieved.

Further, the front end surface of the assembling screw 504 is provided with a positive thread, the rear end surface of the assembling screw 504 is provided with a negative thread, the thread theory of the positive thread is opposite to that of the negative thread, and the purpose that the protection main box 301 and the protection auxiliary box 401 can be driven to move close to or away from each other by the forward and reverse rotation of the assembling screw 504 is achieved.

Further, a bearing seat 503 is fixedly installed on the side surface of the fixed base frame 501, and one end of the assembling screw 504 is rotatably connected with the bearing seat 503, so that the purpose of enabling the assembling screw 504 to stably rotate is achieved.

Further, the sealing gasket 308 is a rubber component, and the size of the sealing gasket 308 is matched with that of the sealing groove 405, so that the purpose that the sealing gasket 308 can be embedded into the sealing groove 405 in a matched manner is achieved.

In the process of using the protection device, when steam leakage occurs in the steam turbine pipeline 1 with the valve, the protection main box 301 and the protection auxiliary box 401 are matched with each other to seal the steam turbine pipeline 1 with the valve, the danger caused by the steam leakage can be effectively prevented, the steam pressure sensor 307 (the model is PTC305H steam pressure sensor) can monitor the steam in real time, the steam pressure sensor 307 transmits monitoring information to the controller 304, the controller 304 controls the audible and visual alarm 303 (the model is HS01 audible and visual alarm) to work to remind personnel of the steam turbine pipeline 1 with the valve of the steam leakage, when the maintenance and repair treatment needs to be performed on the steam turbine pipeline 1 with the valve, the motor 502 is used for driving the assembling screw rod 504 to rotate in the forward direction, so that the protection main box 301 and the protection auxiliary box 401 move away from each other, the protection box mechanism 2 is detached from the steam turbine pipeline 1 with the valve, the steam turbine pipeline 1 with the valve can be maintained and overhauled, when the protection box mechanism 2 is installed on the steam turbine pipeline 1 with the valve, the motor 502 is used for driving the assembling screw 504 to rotate reversely, and the protection main box 301 and the protection auxiliary box 401 are close to each other and are attached to each other.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a thermal power factory leaks protection device, includes steam turbine pipeline (1) with valve, its characterized in that: a protection box mechanism (2) is arranged on the outer side of the steam turbine pipeline (1) with the valve, an underframe mechanism (5) is arranged on the bottom side of the protection box mechanism (2), and the protection box mechanism (2) comprises a main box assembly (3) and an auxiliary box assembly (4) arranged on one side of the main box assembly (3);

the main box assembly (3) comprises a main protection box (301), a main pipe groove (302) is formed in the side face of the main protection box (301), a controller (304) is fixedly installed at one end of the main protection box (301), an audible and visual alarm (303) is fixedly installed at the upper end of the controller (304), main limiting blocks (305) are fixedly installed at two ends of the bottom side of the main protection box (301), a main transmission block (306) is fixedly installed on the surface of the bottom end of the main protection box (301), a steam pressure sensor (307) is fixedly installed on the inner side of the main protection box (301), and a sealing gasket (308) is fixedly installed on the surface of the main protection box (301);

the auxiliary box assembly (4) comprises a protection auxiliary box (401), an auxiliary pipe groove (402) is formed in the side face of the protection auxiliary box (401), auxiliary limit blocks (403) are fixedly mounted at two ends of the bottom side of the protection auxiliary box (401), an auxiliary transmission block (404) is fixedly mounted at the bottom end surface of the protection auxiliary box (401), a sealing groove (405) is formed in the surface of the protection auxiliary box (401), the chassis mechanism (5) comprises a fixed chassis (501), a motor (502) is fixedly mounted at one end of the fixed chassis (501), an assembly screw (504) is fixedly connected to an output shaft of the motor (502), the main transmission block (306) and the auxiliary transmission block (404) are both in threaded connection with the assembly screw (504), two limit rods (505) are symmetrically and fixedly mounted at the upper end of the fixed chassis (501), and the limit rods (505) movably penetrate through the main limit blocks (305) and the auxiliary limit blocks (403), the bottom end of the fixed bottom frame (501) is fixedly connected with a supporting column (506).

2. A thermal power plant leakage protection arrangement according to claim 1, characterized in that the cross-sectional shape of the main duct groove (302) and the secondary duct groove (402) is semicircular, and the diameter size of the main duct groove (302) and the secondary duct groove (402) is adapted to the outer diameter size of the turbine pipeline (1) with valve.

3. A thermal power plant leakage protection arrangement according to claim 1, characterized in that the output of said steam pressure sensor (307) is electrically connected to the input of a controller (304), and the output of said controller (304) is electrically connected to the input of an audible and visual alarm (303).

4. The leakage protection device of a thermal power plant as claimed in claim 1, wherein the front end surface of the assembly screw (504) is provided with a positive thread, the rear end surface of the assembly screw (504) is provided with a negative thread, and the thread theory of the positive thread and the negative thread are opposite to each other.

5. A leakage protection device for a thermal power plant according to claim 1, wherein a bearing seat (503) is fixedly installed on the side of the fixed chassis (501), and one end of the assembling screw rod (504) is rotatably connected with the bearing seat (503).

6. A thermal power plant leakage protection arrangement according to claim 1, wherein said sealing gasket (308) is a rubber member, said sealing gasket (308) having dimensions adapted to the dimensions of said sealing groove (405).