CN215524316U

CN215524316U - External steam cooler in heat recovery system of power plant

Info

Publication number: CN215524316U
Application number: CN202121498315.5U
Authority: CN
Inventors: 岳增刚; 席晓明; 刘春雷
Original assignee: Jining Huayuan Thermal Power Co Ltd
Current assignee: Jining Huayuan Thermal Power Co Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-01-14
Anticipated expiration: 2031-07-02

Abstract

The utility model relates to the technical field of steam coolers, in particular to an external steam cooler in a heat regenerative system of a power plant. The utility model overcomes the defects of the prior art, the heat absorbed by steam cooled by cooling liquid can be absorbed by the radiating fins by arranging the radiating fins and the radiating pipes and the radiating fins at the bottom of the sealing cover, and then the heat is conducted to the top of the sealing cover by the radiating fins arranged at the top of the sealing cover in an annular array manner, so that the heat is radiated by the radiating pipes to avoid the influence on the cooling effect of the cooling liquid caused by the high temperature in the cooler after the steam is cooled for a long time, and the radiating pipes are vertically arranged to avoid rainwater from entering the cooler through the radiating pipes.

Description

External steam cooler in heat recovery system of power plant

Technical Field

The utility model relates to the technical field of steam coolers, in particular to an external steam cooler in a heat regenerative system of a power plant.

Background

Coolers are a class of heat exchange devices for cooling a fluid, usually water or air, as a coolant to remove heat, and include dividing wall coolers, shower coolers, jacketed coolers, and coil coolers, among others, while steam coolers are lid-type steam coolers that have both the function of a pan seal and the ability to operate continuously.

However, in the actual use process of the external steam cooler in the existing heat recovery system of the power plant, because a large amount of high-temperature steam is generated in the power generation process, in the process of cooling the steam by the cooler, the temperature of the cooler is increased along with the steam after the steam is cooled by cooling liquid because the cooler is in a sealed state, and the cooling effect of the cooling liquid on the steam is reduced because the cooler is difficult to dissipate heat; simultaneously, the external steam cooler among the existing power plant regenerative system is at the in-service use in-process, after through inlet tube supply coolant liquid, because the inlet tube lacks sealedly for temperature in the cooler will conduct other positions department through the inlet tube, thereby influences its performance.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides an external steam cooler in a heat recovery system of a power plant, which overcomes the defects of the prior art, has simple structural design and effectively solves the problems that in the actual use process of the external steam cooler in the heat recovery system of the power plant, because a large amount of high-temperature steam is generated in the power generation process, the temperature of the cooler is increased along with the increase of the temperature of cooling liquid after the steam is cooled by the cooling liquid because the cooler is in a sealed state, and the cooling effect of the cooling liquid on the steam is reduced because the cooler is difficult to radiate the heat; simultaneously, the external steam cooler among the existing power plant regenerative system is at the in-service use in-process, after through inlet tube supply coolant liquid, because the inlet tube lacks sealedly for temperature in the cooler will conduct other positions department through the inlet tube, thereby influences its performance's problem.

In order to solve the technical problems, the utility model provides the following technical scheme:

an external steam cooler in a heat regenerative system of a power plant comprises a cooler, wherein a sealing cover is arranged at the top of the cooler;

the bottom of the sealing cover is provided with a radiating fin;

the top of the sealing cover is connected with a radiating pipe;

the radiating pipe is vertically arranged, and the area of the radiating fin is smaller than that of the sealing cover.

Preferably, the both sides of cooler all are provided with the support frame, the inside of support frame is provided with the ladder, the cooling tube is provided with a plurality ofly, just the cooling tube is the distribution of annular array form, the top of sealed lid is provided with a plurality of screws.

Preferably, the outer surface of the cooler is respectively connected with an air inlet pipe and an air outlet pipe, and the air inlet pipe is positioned under the air outlet pipe.

Preferably, the bottom of cooler is connected with the drain pipe, the bottom of drain pipe is provided with the valve, just the drain pipe is the toper setting.

Preferably, one side of cooler is connected with the inlet tube, the spout has all been seted up to the inside both sides of inlet tube, the internally mounted of spout has the spring, the one end of spring is connected with the slider, the inlet tube is located the support frame directly over.

Preferably, one side of the sliding block is provided with a sealing plate, the diameter of the sealing plate is equal to the inner diameter of the water inlet pipe, and the sealing plate is connected with the sliding groove in a sliding mode through the sliding block and the spring.

The embodiment of the utility model provides an external steam cooler in a heat regenerative system of a power plant, which has the following beneficial effects: through being provided with the fin, make the fin can effectually with the heat effluvium in the cooler, the radiating tube of annular array form distribution of rethread, make the heat effluvium through the radiating tube again, with avoid carrying out the high and influence the cooling effect of coolant liquid of the temperature in the cooler after long-time cooling steam, and when supply coolant liquid in to the cooler, the accessible closing plate carries out automatic opening and closing to the inlet tube, thereby make the closing plate seal the inlet tube, with high temperature in avoiding the cooler through inlet tube conduction to other positions departments.

1. Through setting up fin and cooling tube, be provided with the fin through the bottom at sealed lid, make and absorb through the coolant liquid heat accessible fin after cooling steam, make the fin conduct the top to sealed lid with the heat again afterwards, be provided with the cooling tube that annular array form distributes through the top at sealed lid this moment, make the heat spill through the cooling tube again, with the cooling effect of avoiding cooling the interior higher and influence coolant liquid of temperature of aftercooler to steam for a long time, and the cooling tube is vertical setting in order to avoid having rainwater to get into the cooler through the cooling tube inside.

2. Through setting up the closing plate, the spout, spring and slider, when injecting the coolant liquid into the cooler through the inlet tube, this moment because the coolant liquid that injects has certain pressure, thereby make the coolant liquid open the closing plate, the closing plate drives the slider and slides and extension spring in the spout, after finishing the coolant liquid supply afterwards, alright carry out cooling to steam through the coolant liquid, thereby because the spring will resume elasticity and pulling slider after receiving the extension and make the closing plate reset and close the inlet tube, thereby make the closing plate seal to the inlet tube, in order to avoid the high temperature in the cooler to pass through the inlet tube conduction to other positions departments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic diagram of the structure of the water inlet pipe of the present invention;

fig. 3 is a schematic view of the structure of the sealing cover of the present invention.

In the figure: 1. a cooler; 2. a support frame; 201. a step; 3. a drain pipe; 301. a valve; 4. an air inlet pipe; 5. an air outlet pipe; 6. a water inlet pipe; 601. a chute; 602. a spring; 7. a sealing plate; 701. a slider; 8. a sealing cover; 9. a radiating pipe; 10. and a heat sink.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, an external steam cooler in a regenerative system of a power plant comprises a cooler 1, wherein a sealing cover 8 is arranged on the top of the cooler 1;

the bottom of the sealing cover 8 is provided with a radiating fin 10;

the top of the sealing cover 8 is connected with a radiating pipe 9;

the radiating pipe 9 is vertically arranged, and the area of the radiating fin 10 is smaller than that of the sealing cover 8.

Wherein, the both sides of cooler 1 all are provided with support frame 2, and the inside of support frame 2 is provided with ladder 201, and cooling tube 9 is provided with a plurality ofly, and cooling tube 9 is the distribution of annular array form, and the top of sealed lid 8 is provided with a plurality of screws.

In this embodiment, through this kind of design for after cooling down high temperature steam through cooler 1, the coolant liquid will absorb a large amount of heats and lead to the temperature rise of cooler, and accessible fin 10 absorbs this part of heat and scatters this moment, makes heat rethread cooling tube 9 subsequently and scatters, with avoid cooling down the cooling effect that the temperature is higher and influence the coolant liquid in cooler 1 after long-time steam.

Wherein, the surface of cooler 1 is connected with intake pipe 4 and outlet duct 5 respectively, and intake pipe 4 is located outlet duct 5 under.

In this embodiment, through this kind of design to let in high temperature steam in to cooler 1 through intake pipe 4, make cooler 1 cool off high temperature steam and discharge by outlet duct 5 again after, and lie in outlet duct 5 through intake pipe 4 under, make the time of high temperature steam dwell longer in cooler 1.

Wherein, the bottom of cooler 1 is connected with drain pipe 3, and the bottom of drain pipe 3 is provided with valve 301, and drain pipe 3 is the toper setting.

In this embodiment, through this kind of design for after cooling down high temperature steam through the coolant liquid, open valve 301, accessible drain pipe 3 is handled the coolant liquid drainage and change the coolant liquid, is the toper setting through drain pipe 3 simultaneously, makes the coolant liquid can concentrate the discharge.

Wherein, one side of cooler 1 is connected with inlet tube 6, and spout 601 has all been seted up to inlet tube 6's inside both sides, and the internally mounted of spout 601 has spring 602, and the one end of spring 602 is connected with slider 701, and inlet tube 6 is located support frame 2 directly over.

In this embodiment, through this kind of design to in the coolant liquid pours into cooler 1 into through inlet tube 6 into, closing plate 7 drives slider 701 and slides and extension spring 602 in spout 601 this moment, makes closing plate 7 open inlet tube 6, finishes the back with the coolant liquid supply afterwards, thereby makes the coolant liquid carry out cooling to high temperature steam and handles.

Wherein, one side of slider 701 is provided with sealing plate 7, and the diameter size of sealing plate 7 equals the internal diameter size of inlet tube 6, and sealing plate 7 passes through slider 701 and spring 602 and spout 601 sliding connection.

In this embodiment, due to the design, the spring 602 will recover its elasticity after being stretched and pull the slider 701, so that the sealing plate 7 resets and closes the water inlet pipe 6, and the sealing plate 7 seals the water inlet pipe 6, thereby preventing the high temperature in the cooler from being conducted to other positions through the water inlet pipe 6.

The working principle is as follows: firstly, the cooling liquid is injected into the cooler 1 through the water inlet pipe 6, at the moment, the injected cooling liquid has certain pressure, so that the cooling liquid opens the sealing plate 7, the sealing plate 7 drives the sliding block 701 to slide in the sliding groove 601 and stretches the spring 602, then, after the cooling liquid is supplied, the steam can be cooled through the cooling liquid, the spring 602 is stretched and then recovers elasticity and pulls the sliding block 701, so that the sealing plate 7 resets and closes the water inlet pipe 6, so that the water inlet pipe 6 is sealed by the sealing plate 7, the high temperature in the cooler is prevented from being conducted to other positions through the water inlet pipe 6, then, the high-temperature steam can be introduced into the cooler 1 through the air inlet pipe 4, so that the cooling liquid cools the high-temperature steam, the cooled high-temperature steam is discharged through the air outlet pipe 5, and the cooling fins 10 are arranged at the bottom of the sealing cover 8, so that absorb heat accessible fin 10 after cooling steam through the coolant liquid, make fin 10 conduct the heat to the top of sealed lid 8 again afterwards, be provided with the cooling tube 9 of annular array form distribution through the top at sealed lid 8 this moment, make heat rethread cooling tube 9 effluvium, with avoid cooling the cooling effect that the temperature is higher and influence the coolant liquid in back cooler 1 for a long time steam, and cooling tube 9 is vertical setting in order to avoid having the rainwater to get into inside cooler 1 through cooling tube 9.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An external steam cooler in a regenerative system of a power plant comprises a cooler (1) and is characterized in that: a sealing cover (8) is arranged at the top of the cooler (1);

the bottom of the sealing cover (8) is provided with a radiating fin (10);

the top of the sealing cover (8) is connected with a radiating pipe (9);

the radiating pipe (9) is vertically arranged, and the area of the radiating fin (10) is smaller than that of the sealing cover (8).

2. The external steam cooler in the heat recovery system of a power plant of claim 1, wherein: the both sides of cooler (1) all are provided with support frame (2), the inside of support frame (2) is provided with ladder (201), cooling tube (9) are provided with a plurality ofly, just cooling tube (9) are the distribution of annular array form, the top of sealed lid (8) is provided with a plurality of screws.

3. The external steam cooler in the heat recovery system of a power plant of claim 1, wherein: the outer surface of the cooler (1) is connected with an air inlet pipe (4) and an air outlet pipe (5) respectively, and the air inlet pipe (4) is located under the air outlet pipe (5).

4. The external steam cooler in the heat recovery system of a power plant of claim 1, wherein: the bottom of cooler (1) is connected with drain pipe (3), the bottom of drain pipe (3) is provided with valve (301), just drain pipe (3) are the toper setting.

5. The external steam cooler in the heat recovery system of a power plant of claim 1, wherein: one side of cooler (1) is connected with inlet tube (6), spout (601) have all been seted up to the inside both sides of inlet tube (6), the internally mounted of spout (601) has spring (602), the one end of spring (602) is connected with slider (701), inlet tube (6) are located support frame (2) directly over.

6. The external steam cooler in the heat recovery system of power plant of claim 5, wherein: one side of the sliding block (701) is provided with a sealing plate (7), the diameter of the sealing plate (7) is equal to the inner diameter of the water inlet pipe (6), and the sealing plate (7) is connected with the sliding groove (601) in a sliding mode through the sliding block (701) and the spring (602).