CN216448199U

CN216448199U - Water inlet structure for heat recovery system of thermal power plant

Info

Publication number: CN216448199U
Application number: CN202123422869.XU
Authority: CN
Inventors: 张正帅
Original assignee: Huaneng Jingtai Thermal Power Co Ltd
Current assignee: Huaneng Jingtai Thermal Power Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-06
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a water inlet structure for a heat recovery system of a thermal power plant, and relates to the technical field of thermal power plants. This water inlet structure that heat-engine plant heat recovery system used, including coal fired boiler, one side of coal fired boiler is provided with heat recovery unit, one side of heat recovery unit is provided with the interface of intaking, filtering mechanism sets up the lower surface at the interface of intaking. This water inlet structure that heat recovery system of thermal power plant used deposits a dirty section of thick bamboo through setting up, when needs avoid the inlet tube to block up, at first will intake the interface to fix in one side of inlet tube, and water flows from the kneck of intaking toward inlet tube department this moment, and impurity can be kept off down by the inside filter screen of the interface of intaking, then gets into in the fixed pipe in interface bottom of intaking and the screw thread section of thick bamboo, and the device is convenient for avoid the inlet tube to block up in the dirty section of thick bamboo of reentrant.

Description

Water inlet structure for heat recovery system of thermal power plant

Technical Field

The utility model relates to the technical field of thermal power plants, in particular to a water inlet structure for a heat recovery system of a thermal power plant.

Background

The coal-fired boiler of the thermal power plant provides the generating energy of the generating set, and simultaneously a large amount of heat energy is discharged along with the boiler chimney, under the background of advocating energy conservation and emission reduction at present, how to reduce the heat energy loss of exhaust smoke for the coal-fired boiler of the thermal power plant, thereby having great significance on energy conservation and environmental protection, the exhaust smoke loss in the operation of the boiler is the most important heat energy loss, and if the exhaust smoke heat of the boiler can be recovered to the maximum extent and is utilized in the generating set, the operation efficiency and the economic benefit of the boiler can be improved.

When the existing heat recovery device of the thermal power plant is operated, waste heat contained in high-temperature flue gas in a smoke exhaust pipeline of a coal-fired boiler needs to be timely and effectively conducted to heat conducting liquid flowing in the device, then the waste heat is discharged to the outside along with the smoke exhaust pipeline, heat recovery is convenient, waste of the waste heat is avoided, when a water inlet interface structure of the existing heat recovery device is fixed, the existing heat recovery device is very inconvenient to maintain and replace when damaged, and the workload is increased.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model discloses a water inlet structure for a heat recovery system of a thermal power plant, which aims to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a water intake structure for a heat recovery system of a thermal power plant, comprising:

the system comprises a coal-fired boiler, a heat recovery device and a water inlet interface, wherein one side of the coal-fired boiler is provided with the heat recovery device;

the filter comprises a filter mechanism, wherein the filter mechanism is arranged on the lower surface of the water inlet interface and comprises a filter screen and a fixed pipe, the filter screen is fixedly connected inside the water inlet interface, and the fixed pipe is fixedly connected on the lower surface of the water inlet interface.

Preferably, filtering mechanism still includes a screw thread section of thick bamboo, deposits a dirty section of thick bamboo and sealing ring, a screw thread section of thick bamboo fixed connection is at the lower surface of fixed pipe, deposit a dirty section of thick bamboo threaded connection at the surface of a screw thread section of thick bamboo, deposit the inside fixedly connected with sealing ring of a dirty section of thick bamboo.

Preferably, one side of the coal-fired boiler is provided with a slag outlet, the upper surface of the coal-fired boiler is fixedly connected with a chimney interface, the top of the chimney interface is provided with a connecting column, one side of the connecting column is provided with a connecting pipe, and the lower surface of the heat recovery device is fixedly connected with a bearing disc.

Preferably, the lower surface of the bearing plate is fixedly connected with a supporting column, one side of the heat recovery device is fixedly connected with a water outlet pipe, and one side of the heat recovery device is fixedly connected with a water inlet pipe.

Preferably, one side fixedly connected with sleeve of inlet tube, telescopic one side threaded connection has the screwed pipe, the fixed surface of screwed pipe is connected with the sealing strip, the seal groove has been seted up to telescopic one side, one side fixedly connected with of water inlet interface connects the water pipe.

Preferably, a threaded cylinder is fixedly connected to the lower surface of the water inlet interface, a sewage storage cylinder is rotatably connected to the lower surface of the water inlet interface, and the sealing ring is movably connected to the inside of the threaded cylinder.

Preferably, the screwed pipe rotates to be connected at the surface of inlet tube, sealing strip swing joint is in the inside of seal groove, the sleeve sets up the one side at the water inlet interface.

The utility model discloses a water inlet structure for a heat recovery system of a thermal power plant, which has the following beneficial effects:

1. this water inlet structure that heat recovery system of thermal power plant used, deposit a dirty section of thick bamboo through setting up, when needs avoid the inlet tube to block up, at first will intake the interface to fix the one side at the inlet tube, water flows from the kneck of intaking toward the inlet tube this moment, impurity can be kept off down by the inside filter screen of the interface of intaking, then get into in the fixed pipe in interface bottom of intaking and the screw thread section of thick bamboo, get into again deposit dirty section of thick bamboo in, when needs clearance at last, it makes its surface from the screw thread section of thick bamboo break away from can to rotate to deposit a dirty section of thick bamboo, the device is convenient for avoid the inlet tube to block up.

2. This water inlet structure that heat recovery system of thermal power plant used, when needs will intake the interface and fix in one side of inlet tube, at first rotate the screwed pipe and connect in telescopic one side, screwed pipe threaded connection is to telescopic inside this moment, simultaneously, the sealing strip of screwed pipe surface is located the inside of seal groove and rather than sealed, this moment when sealing strip and seal groove contact, the screwed pipe is located the sleeve most inboard, intake interface and advance water piping connection, the device is convenient for will intake the interface and fix in one side of inlet tube.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a heat recovery device according to the present invention;

FIG. 3 is a schematic view of a water inlet interface according to the present invention;

fig. 4 is a schematic structural diagram of the filter mechanism of the present invention.

In the figure: 1. a coal-fired boiler; 101. a slag outlet; 102. a chimney interface; 103. connecting columns; 104. a connecting pipe; 2. a heat recovery device; 201. a carrier tray; 202. a support pillar; 203. A water outlet pipe; 204. a water inlet pipe; 3. a water inlet interface; 301. a threaded pipe; 302. a sealing strip; 303. connecting a water pipe; 304. a sleeve; 305. a sealing groove; 4. a filtering mechanism; 401. a filter screen; 402. a fixed tube; 403. a threaded barrel; 404. a dirt storage cylinder; 405. and (4) a sealing ring.

Detailed Description

The embodiment of the utility model discloses a water inlet structure for a heat recovery system of a thermal power plant, which comprises a coal-fired boiler 1, wherein a heat recovery device 2 is arranged on one side of the coal-fired boiler 1, a water inlet interface 3 is arranged on one side of the heat recovery device 2, a slag outlet 101 is arranged on one side of the coal-fired boiler 1, a chimney interface 102 is fixedly connected to the upper surface of the coal-fired boiler 1, a connecting column 103 is arranged at the top of the chimney interface 102, a connecting pipe 104 is arranged on one side of the connecting column 103, a bearing disc 201 is fixedly connected to the lower surface of the heat recovery device 2, one side of the coal-fired boiler 1 is connected with the heat recovery device 2 through the connecting pipe 104, and the bottom of the heat recovery device 2 is stably placed on the ground surface through the support of the bearing disc 201 and the support column 202.

Referring to fig. 3 and 4, the device further includes a filtering mechanism 4, the filtering mechanism 4 is disposed on the lower surface of the water inlet port 3, the filtering mechanism 4 includes a filter screen 401 and a fixing pipe 402, the filter screen 401 is fixedly connected inside the water inlet port 3, the fixing pipe 402 is fixedly connected on the lower surface of the water inlet port 3, and impurities are blocked inside the water inlet port 3 through the filter screen 401.

Referring to fig. 3 and 4, the device further comprises a filtering mechanism 4, including a threaded cylinder 403, deposit dirty section of thick bamboo 404 and sealing ring 405, threaded cylinder 403 fixed connection is at the lower surface of fixed pipe 402, deposit dirty section of thick bamboo 404 threaded connection at the surface of threaded cylinder 403, deposit the inside fixedly connected with sealing ring 405 of dirty section of thick bamboo 404, threaded cylinder 403 fixed connection is at the lower surface of water inlet interface 3, it rotates the lower surface of connection at water inlet interface 3 to deposit dirty section of thick bamboo 404, sealing ring 405 swing joint is in the inside of threaded cylinder 403, can be kept off by filter screen 401 when connecting the inside of water pipe 303 and water inlet interface 3 and appearing the plug, then get into the inside of depositing dirty section of thick bamboo 404, so as to be convenient for later-stage clearance.

Referring to fig. 2, 3 and 4, the device further includes a support column 202 fixedly connected to the lower surface of the carrier tray 201, a water outlet pipe 203 fixedly connected to one side of the heat recovery device 2, a water inlet pipe 204 fixedly connected to one side of the heat recovery device 2, and a sleeve 304 fixedly connected to one side of the water inlet pipe 204, wherein when the threaded pipe 301 is screwed inside the sleeve 304, the sealing strip 302 is also located inside the sealing groove 305 and sealed therewith to prevent water leakage at the joint of the water inlet port 3 and the water inlet pipe 204.

Referring to fig. 3 and 4, a threaded pipe 301 is connected to one side of a sleeve 304 through threads, a sealing strip 302 is fixedly connected to the outer surface of the threaded pipe 301, a sealing groove 305 is formed in one side of the sleeve 304, a connecting water pipe 303 is fixedly connected to one side of the water inlet port 3, the threaded pipe 301 is rotatably connected to the outer surface of the water inlet pipe 204, the sealing strip 302 is movably connected to the inside of the sealing groove 305, the sleeve 304 is arranged on one side of the water inlet port 3, and the sleeve 304 is in threaded connection with the threaded pipe 301 on one side of the water inlet port 3 through the outer surface of the water inlet pipe 204.

The working principle is as follows: when the water inlet structure for the heat recovery system of the thermal power plant is used, in an initial state, firstly, one side of a coal-fired boiler 1 is connected with a heat recovery device 2 through a connecting pipe 104, the bottom of the heat recovery device 2 is stably placed on the ground surface through a bearing disc 201 and a support column 202, the side surface of the heat recovery device 2 is respectively provided with a water outlet pipe 203 and a water inlet pipe 204, a sleeve 304 on the outer surface of the water inlet pipe 204 is in threaded connection with a threaded pipe 301 on one side of a water inlet interface 3, meanwhile, a sealing strip 302 is also fixed on the side surface of the water inlet interface 3, when the threaded pipe 301 is in threaded connection with the sleeve 304, the sealing strip 302 is also positioned in a sealing groove 305 and is sealed with the sealing groove so as to avoid water leakage at the connection part of the water inlet interface 3 and the water inlet pipe 204, a filter screen 401 is also fixed in the water inlet interface 3, and a fixing pipe 402 is fixed on one side close to the filter screen 401 and the sleeve 304, the bottom of the fixed pipe 402 is provided with a dirt storage cylinder 404, when a blockage occurs in the interior connecting the water pipe 303 and the water inlet connector 3, the blockage is blocked by the filter screen 401, and then the blockage enters the interior of the dirt storage cylinder 404, so that the later cleaning is facilitated;

when need avoid inlet tube 204 to block up, at first fix the one side at inlet tube 204 with interface 3 of intaking, water flows from interface 3 department of intaking toward inlet tube 204 this moment, impurity can be kept off by the inside filter screen 401 of interface 3 of intaking, then get into in 3 fixed pipe 402 in the bottom of interface and the screw thread section of thick bamboo 403 of intaking, reentrant deposit dirty section of thick bamboo 404 in, when needs are cleared up at last, it can to rotate to deposit dirty section of thick bamboo 404 and make its surface from the screw thread section of thick bamboo 403 break away from, the device is convenient for avoid inlet tube 204 to block up.

When the water inlet connector 3 needs to be fixed on one side of the water inlet pipe 204, the threaded pipe 301 is firstly connected to one side of the sleeve 304 in a rotating mode, the threaded pipe 301 is connected to the inside of the sleeve 304 in a threaded mode, meanwhile, the sealing strip 302 on the outer surface of the threaded pipe 301 is located inside the sealing groove 305 and sealed with the sealing groove, at the moment, when the sealing strip 302 is in contact with the sealing groove 305, the threaded pipe 301 is located on the innermost side of the sleeve 304, the water inlet connector 3 is connected with the water inlet pipe 204, and the device is convenient for fixing the water inlet connector 3 on one side of the water inlet pipe 204.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A water intake structure for a heat recovery system of a thermal power plant, comprising:

the system comprises a coal-fired boiler (1), wherein a heat recovery device (2) is arranged on one side of the coal-fired boiler (1), and a water inlet interface (3) is arranged on one side of the heat recovery device (2);

filtering mechanism (4), filtering mechanism (4) set up the lower surface at water inlet (3), filtering mechanism (4) include filter screen (401) and fixed pipe (402), filter screen (401) fixed connection is in the inside of water inlet (3), fixed pipe (402) fixed connection is at the lower surface of water inlet (3).

2. The water intake structure for a heat recovery system of a thermal power plant according to claim 1, characterized in that: filtering mechanism (4) still include a screw thread section of thick bamboo (403), deposit dirty section of thick bamboo (404) and sealing ring (405), a screw thread section of thick bamboo (403) fixed connection is at the lower surface of fixed pipe (402), deposit the surface of dirty section of thick bamboo (404) threaded connection in a screw thread section of thick bamboo (403), deposit the inside fixedly connected with sealing ring (405) of dirty section of thick bamboo (404).

3. The water intake structure for a heat recovery system of a thermal power plant according to claim 1, characterized in that: one side of coal fired boiler (1) is provided with slag notch (101), the last fixed surface of coal fired boiler (1) is connected with chimney interface (102), the top of chimney interface (102) is provided with spliced pole (103), one side of spliced pole (103) is provided with connecting pipe (104), the lower fixed surface of heat reclamation device (2) is connected with and bears dish (201).

4. A water intake structure for a heat recovery system of a thermal power plant according to claim 3, characterized in that: bear lower surface fixedly connected with support column (202) of dish (201), one side fixedly connected with outlet pipe (203) of heat recovery device (2), one side fixedly connected with inlet tube (204) of heat recovery device (2).

5. The water intake structure for a heat recovery system of a thermal power plant according to claim 4, characterized in that: one side fixedly connected with sleeve (304) of inlet tube (204), one side threaded connection of sleeve (304) has screwed pipe (301), the outer fixed surface of screwed pipe (301) is connected with sealing strip (302), seal groove (305) have been seted up to one side of sleeve (304), one side fixedly connected with of interface of intaking (3) connects water pipe (303).

6. The water intake structure for a heat recovery system of a thermal power plant according to claim 2, characterized in that: a threaded cylinder (403) is fixedly connected to the lower surface of the water inlet connector (3), a dirt storage cylinder (404) is rotatably connected to the lower surface of the water inlet connector (3), and a sealing ring (405) is movably connected to the inside of the threaded cylinder (403).

7. The water intake structure for a heat recovery system of a thermal power plant according to claim 5, characterized in that: the threaded pipe (301) is rotatably connected to the outer surface of the water inlet pipe (204), the sealing strip (302) is movably connected to the inside of the sealing groove (305), and the sleeve (304) is arranged on one side of the water inlet connector (3).