CN216080041U

CN216080041U - Boiler flue gas waste heat heating equipment

Info

Publication number: CN216080041U
Application number: CN202122246928.6U
Authority: CN
Inventors: 魏一
Original assignee: Hainan Heyun Technology Co ltd
Current assignee: Hainan Heyun Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-03-18
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses boiler flue gas waste heat heating equipment, and relates to the technical field of waste heat heating. The boiler comprises a boiler body, boiler body top one side is equipped with a plurality of hot medium entry and a plurality of hot medium export, a plurality of hot medium entry below is arranged in to a plurality of hot medium exports, hot medium entry one side is equipped with first intercommunication subassembly, hot medium export one side is equipped with second intercommunication subassembly, still including hot medium return circuit and moisturizing return circuit, first intercommunication subassembly all is connected with the hot medium return circuit with second intercommunication subassembly, boiler body top opposite side is equipped with a plurality of moisturizing entries, moisturizing entry one side is equipped with third intercommunication subassembly, boiler body bottom one side is equipped with a plurality of moisturizing exports, moisturizing export subassembly one side is equipped with fourth intercommunication subassembly, third intercommunication subassembly and moisturizing return circuit are connected. The utility model has the advantage that the pipe diameters of the heat medium inlet and the heat medium outlet and the water replenishing inlet and the water replenishing outlet can be reasonably selected according to the heat extraction flow.

Description

Boiler flue gas waste heat heating equipment

Technical Field

The utility model relates to the technical field of waste heat supply, in particular to boiler flue gas waste heat supply equipment.

Background

The two major losses of a thermal power plant are the cold source loss and the exhaust heat loss. The loss of the cold source directly influences the circulating heat efficiency, and for a common generator set, the loss of the cold source is determined by the design parameters of the generator set. The heat loss of the exhaust smoke is the largest one of various heat losses of the power station boiler, and the heat loss of the exhaust smoke of the modern power station boiler is generally about 4% -8%. One important factor affecting the heat loss of the exhaust fumes is the temperature of the exhaust fumes. According to statistics, in a thermal power plant, the heat loss of exhaust gas of a boiler accounts for 60% -70% of the total heat loss of the boiler. When the exhaust gas temperature rises by 10 ℃, the boiler efficiency is reduced by 0.6-1.0%, and the standard coal consumption rises by 1.2-2.4 g/(kW.h), so that huge waste of coal for electric power is caused. At present, the high exhaust gas temperature is one of the main reasons for influencing the boiler efficiency. In order to reduce low-temperature corrosion, the exhaust gas temperature of a boiler is generally designed to be 130-l 50 ℃, but the actual operation exhaust gas temperature is higher than the designed value by more than 20 ℃ due to the influences of dust deposition, corrosion, air leakage and combustion conditions of a tail heating surface. Therefore, the reduction of the exhaust gas temperature has important practical significance for saving fuel, improving the unit efficiency and reducing pollution.

The above prior art solution has the following drawbacks: the prior device can not select proper pipe diameters of a heat medium inlet and a heat medium outlet and a water replenishing inlet and a water replenishing outlet according to heat extraction flow.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide boiler flue gas waste heat supply equipment which has the advantage that the pipe diameters of a heat medium inlet and a heat medium outlet and a water replenishing inlet and outlet can be reasonably selected according to heat extraction flow.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a boiler flue gas waste heat heating equipment, includes the boiler body, boiler body top one side is equipped with a plurality of hot medium entry and a plurality of hot medium export, and is a plurality of hot medium export is arranged in hot medium entry below, hot medium entry one side is equipped with first intercommunication subassembly, hot medium export one side is equipped with second intercommunication subassembly, still including hot medium return circuit and moisturizing return circuit, first intercommunication subassembly and second intercommunication subassembly all with hot medium return circuit connects, boiler body top opposite side is equipped with a plurality of moisturizing entries, moisturizing entry one side is equipped with third intercommunication subassembly, boiler body bottom one side is equipped with a plurality of moisturizing exports, moisturizing export subassembly one side is equipped with fourth intercommunication subassembly, third intercommunication subassembly with moisturizing return circuit connects, first intercommunication subassembly, second intercommunication subassembly, moisturizing subassembly, Third intercommunication subassembly and fourth intercommunication subassembly structure are the same, third intercommunication subassembly includes a plurality of moisturizing pipes, and is a plurality of moisturizing pipe is inserted respectively and is located a plurality of in the moisturizing is gone into, all be equipped with first valve on the moisturizing pipe, still including the pans, it is a plurality of the moisturizing pipe all with the pans intercommunication, the first connecting pipe of pans one side fixedly connected with, the first ring flange of first connecting pipe one end fixedly connected with.

By adopting the technical scheme, the first communication assembly and the second communication assembly are arranged to conveniently communicate the boiler body with the heat medium loop; the third communication assembly is arranged to facilitate the communication between the boiler body and the water replenishing loop; the fourth intercommunication subassembly that sets up is convenient for when needs, with the internal moisture of boiler body discharge. The plurality of water replenishing pipes are arranged to facilitate the selection of proper water replenishing pipes for replenishing water in the boiler body; the arranged first valve is convenient for controlling the communication state between the intermediate tank and the boiler body on one hand, and is convenient for controlling the water in the intermediate tank to enter the boiler body from which water replenishing pipe on the other hand; the arranged intermediate tank is convenient for communicating the plurality of water replenishing pipes with the first connecting pipe; the first flange plate is convenient for communicating the first connecting pipe with the water replenishing loop.

The present invention in a preferred example may be further configured to: it is a plurality of moisturizing pipe internal diameter is all inequality, and is a plurality of moisturizing pipe internal diameter increases from top to bottom in proper order.

Through adopting above-mentioned technical scheme, the moisturizing pipe internal diameter that sets up is different, conveniently draws the reasonable selection of flow according to the heat to mend water pipe diameter.

The present invention in a preferred example may be further configured to: the first connecting pipe is connected with the second connecting pipe in an inserted mode, the first connecting pipe is fixedly connected with the second connecting pipe, a second valve is arranged on the second connecting pipe, one end, far away from the second connecting pipe, of the first connecting pipe is connected with a heat exchanger through a second flange, the heat exchanger is connected with a water replenishing pump through a third connecting pipe, a fourth connecting pipe is fixedly connected to one side of the water replenishing pump, and one end of the fourth connecting pipe is connected with a slag remover.

By adopting the technical scheme, the second connecting pipe, the third connecting pipe and the fourth connecting pipe are arranged, so that the first connecting pipe, the heat exchanger, the water replenishing pump and the slag remover can be conveniently connected to form a loop, low-temperature hot water in the slag remover can enter the boiler body, and the purpose of saving energy is conveniently achieved; the second valve is arranged to control water in the slag remover to enter the first connecting pipe conveniently.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. the first communication assembly and the second communication assembly are arranged to facilitate the communication between the boiler body and the heat medium loop; the third communication assembly is arranged to facilitate the communication between the boiler body and the water replenishing loop; the fourth communication component is arranged to facilitate the discharge of water in the boiler body when needed; the plurality of water replenishing pipes are arranged to facilitate the selection of proper water replenishing pipes for replenishing water in the boiler body; the arranged first valve is convenient for controlling the communication state between the intermediate tank and the boiler body on one hand, and is convenient for controlling the water in the intermediate tank to enter the boiler body from which water replenishing pipe on the other hand; the arranged intermediate tank is convenient for communicating the plurality of water replenishing pipes with the first connecting pipe; the first flange plate is arranged to facilitate the communication between the first connecting pipe and the water replenishing loop;

3. the second connecting pipe, the third connecting pipe and the fourth connecting pipe are arranged, so that the first connecting pipe, the heat exchanger, the water replenishing pump and the slag remover can be conveniently connected to form a loop, low-temperature hot water in the slag remover can enter the boiler body, and the purpose of saving energy is conveniently achieved; the second valve is arranged to control water in the slag remover to enter the first connecting pipe conveniently.

Drawings

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

fig. 2 is an enlarged schematic view at a in fig. 1.

Reference numerals: 1. a boiler body; 2. a first communication assembly; 21. a thermal medium charging pipe; 3. a second communicating member; 31. a heat medium discharge pipe; 4. a third communicating component; 41. a water replenishing pipe; 42. a first valve; 43. an intermediate tank; 44. a first connecting pipe; 45. a first flange plate; 5. a fourth communication assembly; 51. a water return pipe; 6. a heat medium circuit; 7. a water replenishing loop; 8. a second connecting pipe; 9. a second valve; 10. a second flange plate; 11. a heat exchanger; 12. a water replenishing pump; 13. a slag remover; 14. a fourth connecting pipe; 15. and a third connecting pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the boiler flue gas waste heat supply equipment disclosed by the utility model comprises a boiler body 1, wherein one side of the top of the boiler body 1 is provided with a plurality of heat medium inlets and a plurality of heat medium outlets, the plurality of heat medium outlets are arranged below the plurality of heat medium inlets, one side of each heat medium inlet is provided with a first communicating component 2, one side of each heat medium outlet is provided with a second communicating component 3, the boiler further comprises a heat medium loop 6 and a water supplementing loop 7, the first communicating components 2 and the second communicating components 3 are both connected with the heat medium loop 6, the other side of the top of the boiler body 1 is provided with a plurality of water supplementing inlets, one side of each water supplementing inlet is provided with a third communicating component 4, one side of the bottom of the boiler body 1 is provided with a plurality of water supplementing outlets, one side of each water supplementing outlet component is provided with a fourth communicating component 5, the third communicating component 4 is connected with the water supplementing loop 7, the first communicating component 2, the second communicating components 3, The third communicating component 4 and the fourth communicating component 5 have the same structure. Third intercommunication subassembly 4 includes a plurality of moisturizing pipes 41, and a plurality of moisturizing pipes 41 internal diameter is all inequality, and a plurality of moisturizing pipes 41 internal diameter from top to bottom increase in proper order, and a plurality of moisturizing pipes 41 are inserted respectively and are located in a plurality of moisturizing entrances, all are equipped with first valve 42 on the moisturizing pipe 41, still including pans 43, a plurality of moisturizing pipes 41 all communicate with pans 43, the first connecting pipe 44 of pans 43 one side fixedly connected with, the first ring flange 45 of first connecting pipe 44 one end fixedly connected with.

As shown in fig. 1, a second connecting pipe 8 is inserted into one side of the first connecting pipe 44 and fixedly connected with the first connecting pipe and the second connecting pipe, a second valve 9 is arranged on the second connecting pipe 8, one end of the second connecting pipe 8, which is far away from the first connecting pipe 44, is connected with a heat exchanger 11 through a second flange 10, the heat exchanger 11 is connected with a water replenishing pump 12 through a third connecting pipe 15, a fourth connecting pipe 14 is fixedly connected with one side of the water replenishing pump 12, and one end of the fourth connecting pipe 14 is connected with a slag remover 13.

The implementation principle of the embodiment is as follows: the inner diameter of a heat medium discharge pipe 31 of a heat medium outlet, the inner diameter of a heat medium filling pipe 21 of a heat medium inlet, the inner diameter of a water return pipe 51 of a water replenishing outlet and the inner diameter of a water replenishing pipe 41 of a water replenishing inlet are reasonably selected through heat extraction flow; during the heating period, the heat exchanger 11 and the water replenishing pump 12 are reasonably selected according to the actual conditions and the operation parameters on site, the water replenishing pump 12 is connected with the heat exchanger 11 by using the third connecting pipe 15, the water replenishing pump 12 is connected with the slag remover 13 by using the fourth connecting pipe 14, the heat exchanger 11 is connected with the second flange 10 of the second connecting pipe 8, the second valve 9 is opened, and the water replenishing pump 12 is driven to convey low-temperature hot water in the slag remover 13 into the boiler body 1 through the water replenishing pump 12 and the heat exchanger 11.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a boiler flue gas waste heat heating equipment, includes boiler body (1), its characterized in that: one side of the top of the boiler body (1) is provided with a plurality of heat medium inlets and a plurality of heat medium outlets, the plurality of heat medium outlets are arranged below the plurality of heat medium inlets, one side of the heat medium inlets is provided with a first communicating component (2), one side of the heat medium outlets is provided with a second communicating component (3), the boiler further comprises a heat medium loop (6) and a water replenishing loop (7), the first communicating component (2) and the second communicating component (3) are both connected with the heat medium loop (6), the other side of the top of the boiler body (1) is provided with a plurality of water replenishing inlets, one side of each water replenishing inlet is provided with a third communicating component (4), one side of the bottom of the boiler body (1) is provided with a plurality of water replenishing outlets, one side of each water replenishing outlet component is provided with a fourth communicating component (5), and the third communicating component (4) is connected with the water replenishing loop (7), first intercommunication subassembly (2), second intercommunication subassembly (3), third intercommunication subassembly (4) and fourth intercommunication subassembly (5) structure are the same, third intercommunication subassembly (4) include a plurality of moisturizing pipe (41), and are a plurality of moisturizing pipe (41) are inserted respectively and are located a plurality of in the moisturizing income, all be equipped with first valve (42) on moisturizing pipe (41), still including intermediate tank (43), a plurality of moisturizing pipe (41) all with intermediate tank (43) intercommunication, the first connecting pipe (44) of intermediate tank (43) one side fixedly connected with, the first ring flange (45) of first connecting pipe (44) one end fixedly connected with.

2. The boiler flue gas waste heat heating device according to claim 1, characterized in that: a plurality of moisturizing pipe (41) internal diameter is all inequality, and is a plurality of moisturizing pipe (41) internal diameter from top to bottom increases in proper order.

3. The boiler flue gas waste heat heating device according to claim 1, characterized in that: first connecting pipe (44) one side is inserted and is equipped with second connecting pipe (8) and both fixed connection, be equipped with second valve (9) on second connecting pipe (8), second connecting pipe (8) are kept away from first connecting pipe (44) one end is connected with heat exchanger (11) through second ring flange (10), heat exchanger (11) are connected with moisturizing pump (12) through third connecting pipe (15), moisturizing pump (12) one side fixedly connected with fourth connecting pipe (14), fourth connecting pipe (14) one end is connected with slagging-off machine (13).