CN211781192U

CN211781192U - Smoke exhaust pipe with waste heat recovery function for thermal power plant

Info

Publication number: CN211781192U
Application number: CN202020352539.4U
Authority: CN
Inventors: 朱青; 王东亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-27
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a pipe of discharging fume that thermal power plant has waste heat recovery function, including discharging fume the pipe, the pipe circumference outer wall of discharging fume has cup jointed the cooling tube, and discharges fume a tub one side outer wall and install the cooling casing, it has the inlet tube to peg graft in cooling casing top outer wall one side, and inside the inlet tube other end extends to the cooling casing, the disk cooling tube was installed to the inlet tube other end, the outlet pipe is installed to the disk cooling tube other end, and inside the outlet pipe other end extends to the cooling tube, it has the fin that the equidistance distributes to discharge fume the pipe outer wall grafting, and the fin is close to the one end of discharging fume. The utility model discloses in, through fin and the arc of setting on discharging fume the pipe, increased with the area of contact of flue gas, the heat of absorption flue gas that can be better has improved the cooling effect, and arc one side is provided with the ventilation hole, guarantees that the circulation of flue gas is smooth and easy, and can utilize the hot water that the drain pipe clapped out, facilitates the use.

Description

Smoke exhaust pipe with waste heat recovery function for thermal power plant

Technical Field

The utility model relates to a thermal power plant technical field especially relates to a thermal power plant has exhaust pipe of waste heat recovery function.

Background

A thermal power plant, referred to as a thermal power plant, is a plant that produces electric energy using a combustible (e.g., coal) as a fuel. The basic production process is as follows: when the fuel is burnt, water is heated to generate steam, chemical energy of the fuel is converted into heat energy, the steam pressure pushes a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy. The prime mover is typically a steam or gas turbine, and in some smaller power plants, it is also possible to use an internal combustion engine. They generate electricity by taking advantage of the pressure drop during the conversion of high temperature, high pressure steam or gas through a turbine to low pressure air or condensate.

The pipe of discharging fume in the work of thermal power plant can discharge out a large amount of flue gases, but contains a large amount of heats in these flue gases, directly discharges and can cause thermal very big waste to the extravagant resource, consequently the pipe of discharging fume that has waste heat recovery function of a thermal power plant is needed urgently to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the pipe of discharging fume that thermal power plant has the waste heat recovery function that proposes, the problem that can effectual solution background art proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a thermal power plant has pipe of discharging fume of waste heat recovery function, is including discharging fume the pipe, the pipe circumference outer wall of discharging fume has cup jointed the cooling tube, and discharges fume a tub one side outer wall and install the cooling casing, it has the inlet tube to peg graft in cooling casing top outer wall one side, and the inlet tube other end extends to inside the cooling casing, and the disk cooling tube is installed to the inlet tube other end, the outlet pipe is installed to the disk cooling tube other end, and the outlet pipe other end extends to inside the cooling tube.

Preferably, the outer wall of the smoke exhaust pipe is inserted with radiating fins distributed at equal intervals, and one end of each radiating fin close to the smoke exhaust pipe is provided with an arc-shaped plate.

Preferably, the outer wall of one side of the arc-shaped plate is provided with a vent hole.

Preferably, a drain pipe is inserted into one side of the outer wall of the top of the cooling pipe.

Preferably, the outer wall of the top of the cooling shell is inserted with a connecting pipe, and the connecting pipe extends to the outside of the cooling shell.

Preferably, the outer wall of the bottom of the connecting pipe is provided with a cleaning pipe, and the outer wall of the bottom of the cleaning pipe is provided with cleaning nozzles distributed at equal intervals.

Preferably, the outer wall of the bottom of the cooling shell is spliced with a sewage discharge pipe, and an arc-shaped baffle is installed on the inner wall of one side of the bottom of the cooling shell.

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

1. through fin and the arc of setting on the pipe of discharging fume, increased with the area of contact of flue gas, the heat of absorption flue gas that can be better has improved the cooling effect, and arc one side is provided with the ventilation hole, guarantees that the flue gas circulation is smooth and easy, and can utilize drain pipe exhaust hot water, facilitates the use.

2. Through being provided with the disk cooling tube, can carry out the secondary cooling to the flue gas on the pipe of discharging fume, guarantee the cooling quality, avoid discharging fume the direct external world of discharging fume of steam on the pipe for the heat can be by waste heat recovery, has practiced thrift the resource.

3. Embodiment 2 washes the disk-shaped cooling tube surface through being provided with connecting pipe, scavenge pipe and washing mouth, the washing mouth through the scavenge pipe bottom, avoids the dust to save on the disk-shaped cooling tube, has guaranteed the cooling effect of disk-shaped cooling tube to the flue gas, through being provided with cowl, avoids abluent water to scatter everywhere, makes things convenient for the staff to use.

Drawings

Fig. 1 is a schematic structural view of a smoke exhaust pipe with a waste heat recovery function in a thermal power plant according to the present invention;

fig. 2 is a schematic view of a cross-sectional structure of a cooling pipe of a smoke exhaust pipe with a waste heat recovery function in a thermal power plant according to the present invention;

fig. 3 is the utility model provides an embodiment 2 of thermal power plant's pipe of discharging fume that has waste heat recovery function cools off casing sectional structure schematic diagram.

In the figure: the device comprises a water discharge pipe 1, a cooling shell 2, a water inlet pipe 3, a disc-shaped cooling pipe 4, a water outlet pipe 5, a cooling pipe 6, a smoke exhaust pipe 7, radiating fins 8, an arc-shaped plate 9, a ventilation hole 10, a cleaning pipe 11, a connecting pipe 12, an arc-shaped baffle 13, a sewage discharge pipe 14 and a cleaning nozzle 15.

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, rather than all embodiments, and in the present invention, unless explicitly specified or limited otherwise, the terms "mounting", "setting", "connecting", "fixing", "screwing", and the like are to be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Example 1

Referring to fig. 1-2, a pipe of discharging fume that thermal power plant has waste heat recovery function, including

discharging fume

7, 7 circumference outer walls of discharging fume cup

joint cooling tube

6, and 7 one side outer walls of discharging fume install

cooling shell

2, 2 top outer walls of cooling shell one side pegs graft there is inlet tube 3, and the 3 other ends of inlet tube extend to inside the cooling shell 2, disc cooling tube 4 is installed to the 3 other ends of inlet tube, outlet pipe 5 is installed to the 4 other ends of disc cooling tube, and the 5 other ends of outlet pipe extend to inside the cooling tube 6.

The utility model discloses in, 7 outer walls of pipe of discharging fume are pegged graft and are had the fin 8 that the equidistance distributes, and fin 8 is close to the one end of discharging fume pipe 7 and installs arc 9, and ventilation hole 10 has been seted up to the outer wall of arc 9 one side, and 6 top outer walls of cooling tube one side are pegged graft and are had drain pipe 1.

The working principle is as follows: during the use with the external cold water of inlet tube 3, then enter into cooling shell 2 through disk cooling tube 4, then enter into cooling tube 6 through outlet pipe 5, arrange toward external world through drain pipe 1, at first the inside cold water of cooling tube 6 carries out the first heat absorption cooling to the steam of discharging fume 7 inside of pipe, through fin 8 and the arc 9 of setting on discharging fume 7, the area of contact with the flue gas has been increased, the heat of absorption flue gas that can be better, the cooling effect has been improved, and arc 9 one side is provided with the ventilation hole, it is smooth and easy to guarantee the circulation of flue gas, then disk cooling tube 4 carries out the secondary cooling to the flue gas on discharging fume 7, the cooling quality has been guaranteed, the direct discharge of steam on the pipe 7 of avoiding discharging fume is external, make the heat can be by waste heat recovery, resources are saved.

Example 2

Referring to fig. 1-3, a thermal power plant has exhaust pipe of waste heat recovery function, still includes that cooling casing 2 top outer wall pegs graft and has connecting pipe 12, and connecting pipe 12 extends to cooling casing 2 outsidely, and the scavenge pipe 11 is installed to connecting pipe 12 bottom outer wall, and the scavenge pipe 11 bottom outer wall is installed the washing mouth 15 that the equidistance distributes and is cooled casing 2 bottom outer wall pegs graft and have blow off pipe 14, and cools off casing 2 bottom one side inner wall and install cowl 13.

The working principle is as follows: compared with the embodiment 1, the external water source of the connecting pipe 12 is used for washing the surface of the disc-shaped cooling pipe 4 through the cleaning nozzle 15 at the bottom of the cleaning pipe 11, dust is prevented from being accumulated on the disc-shaped cooling pipe 4, the cooling effect of the disc-shaped cooling pipe 4 on smoke is guaranteed, and the cleaning water is prevented from scattering everywhere through the arc-shaped baffle 13, so that the cleaning water is convenient for workers to use.

The utility model discloses the standard part that well used all can be purchased from market, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt conventional model among the prior art.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a thermal power plant has pipe of discharging fume of waste heat recovery function, is including discharging fume pipe (7), its characterized in that, it has cooling tube (6) to discharge fume pipe (7) circumference outer wall cup joint, and discharges fume pipe (7) one side outer wall and install cooling casing (2), it has inlet tube (3) to peg graft in cooling casing (2) top outer wall one side, and inside inlet tube (3) other end extended to cooling casing (2), disk cooling tube (4) were installed to the inlet tube (3) other end, outlet pipe (5) are installed to disk cooling tube (4) other end, and inside the outlet pipe (5) other end extended to cooling tube (6).

2. The smoke exhaust pipe with the waste heat recovery function for the thermal power plant as claimed in claim 1, wherein the outer wall of the smoke exhaust pipe (7) is inserted with radiating fins (8) distributed equidistantly, and one end of each radiating fin (8) close to the smoke exhaust pipe (7) is provided with an arc-shaped plate (9).

3. The smoke exhaust pipe with the waste heat recovery function for the thermal power plant as claimed in claim 2, wherein the outer wall of one side of the arc-shaped plate (9) is provided with a vent hole (10).

4. The smoke exhaust pipe with the waste heat recovery function for the thermal power plant as claimed in claim 1, wherein the water discharge pipe (1) is inserted into one side of the outer wall of the top of the cooling pipe (6).

5. The smoke exhaust pipe with the waste heat recovery function for the thermal power plant as claimed in claim 1, wherein a connecting pipe (12) is inserted into the outer wall of the top of the cooling shell (2), and the connecting pipe (12) extends to the outside of the cooling shell (2).

6. The smoke exhaust pipe with the waste heat recovery function for the thermal power plant as claimed in claim 5, wherein the outer wall of the bottom of the connecting pipe (12) is provided with a cleaning pipe (11), and the outer wall of the bottom of the cleaning pipe (11) is provided with cleaning nozzles (15) which are distributed equidistantly.

7. The smoke exhaust pipe with the waste heat recovery function for the thermal power plant as claimed in claim 6, wherein a blow-off pipe (14) is inserted into the outer wall of the bottom of the cooling shell (2), and an arc-shaped baffle (13) is installed on the inner wall of one side of the bottom of the cooling shell (2).