CN210922321U - Device for solving drainage problem of heat exchanger module - Google Patents

Abstract

The utility model discloses a solve hydrophobic device of problem of heat exchanger module, including little collection case, heat exchange tube and blowdown return bend, the blast pipe is installed to the side end face of little collection case, and the lower terminal surface of little collection case is provided with the compression space, the right side of little collection case is installed to the heat exchange tube, and the top of heat exchange tube is provided with the incorgruous elbow, the box inner wall is installed to the upper left side in compression space, the blowdown return bend is installed in the inside of box inner wall, and the left end face flange connection of blowdown return bend has the valve, valve left end face flange connection has the blowdown to take over. The heat exchanger module has the main characteristics of simple structure, low running cost and no potential safety hazard, adopts the siphon principle, solves the problem that the heat exchange tube at the bottom of the heat exchange module is cold and rises and cracks due to excessive accumulated water, leaves a movable telescopic space in the height direction for the small header, can freely stretch and retract within an allowable range without rising and cracking, and thereby protects the heat exchange module from rising and cracking due to cold weather.

Description

Device for solving drainage problem of heat exchanger module

Technical Field

The utility model relates to a heat exchanger technical field specifically is a solve hydrophobic device of problem of heat exchanger module.

Background

China is a large country for power production and utilization, statistics shows from the last year, the electricity generation amount in China in 2018 is the first worldwide again, nearly 6.8 trillion kilowatt hours are reached, the total thermal power generation amount is 73.23% of the total national electricity generation amount, 49794.7 billion kilowatt hours are reached, the electricity generation efficiency of a thermal power plant is absolutely dominant, the highest electricity generation efficiency of the existing thermal power plant is only 40%, the boiler exhaust smoke loss is important heat loss of the power plant, generally, the boiler exhaust smoke loss is about 5% -12%, the boiler exhaust smoke loss is 60% -70% of the heat loss of the boiler, the main factor influencing the exhaust smoke heat loss is the exhaust smoke temperature, and in general, the exhaust smoke temperature is increased by 0.6% -1% when the exhaust smoke heat loss is increased by 10 ℃, and the corresponding coal consumption is increased by 1.2% -2.4%.

At present, equipment such as low temperature economizer, air heater and flue gas reheater are easy to assemble and overhaul, the heat exchange tube divides the modular design, because of the little collection case interval of adjacent module is less, consequently, the structure has leaded to heat exchange module often to face the unable discharge problem of bottommost heat exchange tube ponding, when the heat exchanger was deposited or was out of the stove and overhauld winter, there is ponding inside, and water meets cold and freezes, the volume increases, lead to the bottom heat exchange tube to cause heat exchange module bottom heat exchange tube deformation rising crack because of there being ponding icing inflation, the heat exchange tube rises after cracking, not only can cause economic loss, and overhaul the trouble, for this reason, we propose a device of solving the hydrophobic problem of heat exchanger module.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a solve device of heat exchanger module drainage problem, with solve among the above-mentioned background art at present, low temperature economizer, equipment such as air heater and flue gas reheater are easy to assemble and overhaul, the heat exchange tube divides the modular design, it is less because of the little collection case interval of adjacent module, consequently, the structure has leaded to heat exchange module to face the unable discharge problem of bottom heat exchange tube ponding often, the heat exchanger deposits or when blowing out and overhauls in winter, there is ponding inside it, and water meets cold and freezes, the volume increases, lead to the bottom heat exchange tube to cause heat exchange module bottom heat exchange tube deformation rising crack because of there being ponding frozen inflation, the heat exchange tube rises after cracking, not only can cause economic loss, and overhaul troublesome problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a solve hydrophobic device of problem of heat exchanger module, includes little collection case, heat exchange tube and blowdown return bend, the blast pipe is installed to the side end face of little collection case, and the lower terminal surface of little collection case is provided with the compression space, the right side of little collection case is installed to the heat exchange tube, and the top of heat exchange tube is provided with the incorgruous elbow, the box inner wall is installed to the upper left side in compression space, and the left end face flange connection of blowdown return bend has the valve, valve left end face flange connection has the blowdown to take over.

Preferably, the exhaust pipes penetrate through the side end faces of the small header, and the exhaust pipes are arranged at intervals on the side end faces of the small header.

Preferably, the heat exchange module body is arranged on the outer side of the heat exchange tube, and the left end face of the sewage discharge connecting tube and the left end face of the sewage discharge bent tube are connected through a valve flange to form a detachable structure.

Preferably, the blowdown connecting pipe and the blowdown elbow pipe integrally form a U-shaped structure, and U-shaped openings of the blowdown connecting pipe and the blowdown elbow pipe face downwards.

Preferably, the bottom of the right port of the sewage elbow adopts an inclined design, and the right port of the sewage elbow is lower than the lowest end of the heat exchange tube.

Preferably, the inner wall of the box body is connected with the outer surface of the sewage bent pipe in a welding mode, and the compression space adopts a double-layer hollow alloy plate.

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

1. the U-shaped pipeline structure formed by the sewage discharge connecting pipe and the sewage discharge bent pipe enables accumulated water in the small header to be automatically discharged through a siphon principle, so that the device is simple in structure and has strong water discharge capacity;

2. the right port of the sewage discharge elbow pipe of the device is positioned below the horizontal height of the bottom heat exchange pipe, so that accumulated water can be discharged in real time, the structure solves the problem that the heat exchange pipe is deformed and broken when water meets cold and freezes in winter, improves safety guarantee, reduces economic loss and maintenance times, and is reasonable in structural design;

3. the compression space of the device is designed by alloy plate materials with double-layer hollow structures, and the device can freely stretch and retract within an allowable range without expanding crack, so that the heat exchange module is protected from expanding crack caused by cold weather.

Drawings

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

FIG. 2 is a sectional view of the sewage connection pipe of the present invention;

fig. 3 is a sectional view of the compression space of the present invention.

In the figure: 1. a small header; 2. compressing the space; 3. an exhaust pipe; 4. a counter-rotating elbow; 5. a heat exchange pipe; 6. a heat exchange module body; 7. the inner wall of the box body; 8. a blowdown elbow pipe; 9. a valve; 10. a sewage discharge connecting pipe.

Detailed Description

Referring to fig. 1-3, the present invention provides a technical solution: a device for solving the drainage problem of a heat exchanger module comprises a small container 1, a heat exchange tube 5 and a sewage elbow 8, wherein an exhaust pipe 3 is arranged on the side end face of the small container 1, a compression space 2 is arranged on the lower end face of the small container 1, the heat exchange tube 5 is arranged on the right side of the small container 1, a counter elbow 4 is arranged above the heat exchange tube 5, a container inner wall 7 is arranged on the left upper side of the compression space 2, the sewage elbow 8 is arranged inside the container inner wall 7, the left end face of the sewage elbow 8 is connected with a valve 9 in a flange mode, the left end face of the valve 9 is connected with a sewage connecting pipe 10 in a flange mode, the exhaust pipe 3 penetrates through the side end face of the small container 1, the exhaust pipe 3 is arranged on the side end face of the small container 1 in a spaced mode, a heat exchange module body 6 is arranged on the outer side of the heat exchange, the device has the advantages that the device is in a U-shaped pipeline structure formed by the sewage discharge connecting pipe 10 and the sewage discharge bent pipe 8, and the lower port of the sewage discharge connecting pipe 10 is lower than the lower port of the small header 1, so that accumulated water in the small header 1 can be automatically discharged by a siphon principle, the participation of electric equipment is not needed, the structure of the device is simpler, and the device has stronger water discharge capacity;

the sewage connecting pipe 10 and the sewage bent pipe 8 integrally form a U-shaped structure, U-shaped openings of the sewage connecting pipe 10 and the sewage bent pipe 8 are downward, the bottom of the right port of the sewage bent pipe 8 is designed in an inclined mode, the right port of the sewage bent pipe 8 is lower than the lowest end of the heat exchange pipe 5, and the sewage bent pipe has the effect that the right port of the sewage bent pipe 8 is located below the horizontal height of the bottom heat exchange pipe 5, so that accumulated water can be discharged in real time, the problem that the heat exchange pipe 5 is deformed and broken when the heat exchange module body 6 is exposed to accumulated water in the bottommost heat exchange pipe 5 and water is frozen in winter is solved, safety guarantee is improved, economic loss and maintenance times are reduced, and the;

the connection mode of the inner wall 7 of the box body and the outer surface of the sewage elbow pipe 8 is welded connection, the compression space 2 adopts a double-layer hollow alloy plate, the effect is that the compression space 2 of the device is designed by the alloy plate material with a double-layer hollow structure, a movable telescopic space can be reserved in the height direction for the small header 1, the small header can freely stretch in an allowable range without expansion and cracking, and therefore the heat exchange module is protected against expansion and cracking caused by cold weather.

The working principle is as follows: for the drainage device of the heat exchanger module, the device mainly comprises a small collection box 1, a heat exchange pipe 5 and a sewage bent pipe 8, when the device is used, the device can be combined with an external object, then the exchange of the air inside the device and the external space is realized by utilizing the exhaust pipe 3, a certain amount of water can be stored in the small collection box 1 through the exchange of heat of a plurality of groups of incongruous elbows 4 and the heat exchange pipe 5 inside the heat exchange module body 6, after the water is stored in the small collection box 1, the water inside the small collection box 1 can be discharged through the sewage bent pipe 8 which is welded with the inner wall 7 of the box body, a sewage connecting pipe 10 is arranged at the left port of the sewage bent pipe 8 in a sleeved connection mode, then a valve 9 is screwed, and by utilizing the internal siphon principle, the device can be continuously discharged from the U-shaped sewage bent pipe 8 by the water stored in the small collection box 1, the condition of piling up in heat exchange tube 5 inside can not appear in the inside water of the device little collection case 1 like this, has just so avoided ponding in the heat exchange tube 5 to take place the cracked condition of heat exchange tube 5 jam when the weather is colder, and the lower terminal surface of little collection case 1 adopts the double-deck aerial alloy material in addition, utilizes hollow solution to make the inside of little collection case 1 leave certain expansion space, can freely stretch out and draw back and can not rise and split in allowable within range. Therefore, the heat exchange module is protected from being cracked due to cold weather, and the use process and the working principle of the device are the same.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a solve hydrophobic device of problem of heat exchanger module, includes little collection case (1), heat exchange tube (5) and blowdown return bend (8), its characterized in that: blast pipe (3) are installed to the side end face of little collection case (1), and the lower terminal surface of little collection case (1) is provided with compression space (2), the right side of little collection case (1) is installed in heat exchange tube (5), and the top of heat exchange tube (5) is provided with incorgruous elbow (4), the upper left side of compression space (2) is provided with box inner wall (7), install in the inside of box inner wall (7) in blowdown return bend (8), and the left end face flange connection of blowdown return bend (8) has valve (9), and valve (9) left end face flange connection has blowdown takeover (10).

2. The device for solving the problem of water drainage of the heat exchanger module as claimed in claim 1, wherein: the exhaust pipes (3) penetrate through the side end face of the small header (1), and the exhaust pipes (3) are arranged on the side end face of the small header (1) at intervals.

3. The device for solving the problem of water drainage of the heat exchanger module as claimed in claim 1, wherein: the outer side of the heat exchange tube (5) is provided with a heat exchange module body (6), and the left end face of the sewage discharge connecting tube (10) and the sewage discharge bent tube (8) are connected through a valve (9) in a flange mode to form a detachable structure.

4. The device for solving the problem of water drainage of the heat exchanger module as claimed in claim 1, wherein: the sewage draining connecting pipe (10) and the sewage draining bent pipe (8) integrally form a U-shaped structure, and U-shaped holes of the sewage draining connecting pipe (10) and the sewage draining bent pipe (8) face downwards.

5. The device for solving the problem of water drainage of the heat exchanger module as claimed in claim 1, wherein: the bottom of the right port of the sewage bent pipe (8) is designed in an inclined mode, and the right port of the sewage bent pipe (8) is lower than the lowest end of the heat exchange pipe (5).

6. The device for solving the problem of water drainage of the heat exchanger module as claimed in claim 1, wherein: the inner wall (7) of the box body is connected with the outer surface of the sewage bent pipe (8) in a welding mode, and the compression space (2) adopts a double-layer hollow alloy plate.

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