CN214581199U

CN214581199U - Boiler air supply heating system

Info

Publication number: CN214581199U
Application number: CN202120421681.4U
Authority: CN
Inventors: 高鑫; 张磊; 周小三; 程锦; 葛宇
Original assignee: Zhongye Northwest Engineering Technology Co ltd
Current assignee: Zhongye Northwest Engineering Technology Co ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-11-02
Anticipated expiration: 2031-02-25

Abstract

The utility model relates to a boiler air supply heating system, include: the withdrawable warm air furnace is arranged in the warm air flue in a sliding manner and is used for supplying heat to the warm air flue; the heat storage facility is connected with the warm air furnace and provides heat for the warm air furnace, and the heat storage facility is used for storing soil heat; and the heat collector is connected with the heat storage facility and is used for collecting solar energy, and the heat storage facility is also used for storing the heat of the heat collector. The withdrawable warm air furnace is arranged in the warm air flue, so that renewable energy sources such as solar energy, soil heat and the like are utilized to supply heat to the warm air furnace in low-temperature seasons, the air supply temperature of the warm air flue is met, and the heat supply energy consumption of the warm air flue is reduced; the withdrawable warm air furnace is moved out of the flue in non-low-temperature seasons, so that the resistance loss of the flue is effectively reduced, the power consumption of a fan is reduced, and the energy conservation and emission reduction are facilitated.

Description

Boiler air supply heating system

Technical Field

The utility model belongs to the boiler trade, concretely relates to boiler air supply heating system.

Background

The air supply temperature of the boiler is generally designed according to 20 ℃, but for a power plant or a boiler room with low temperature seasons, when the air temperature is low, the temperature of flue gas at the outlet of the air preheater is possibly low, so that low-temperature corrosion of a flue at the tail part of the boiler is caused, and meanwhile, the heat efficiency of the boiler is reduced and the fuel consumption is increased due to the low air supply temperature. Therefore, a heater is generally provided between the blower and the air preheater to ensure the temperature of the air. The air heater usually adopts a tubular heat exchanger, and the heat source of the air heater mostly adopts low-pressure steam.

The steam is used as the heat source of the air heater, the steam consumption exists, the generated energy of a power plant or the steam supply quantity of a boiler room can be reduced, meanwhile, the heat exchange part of the conventional air heater is always fixed in the air channel, the air channel resistance loss is large, and the power consumption of the air feeder is increased.

SUMMERY OF THE UTILITY MODEL

For solving above-mentioned part or whole problem, the utility model provides a boiler air supply heating system utilizes renewable energy such as solar energy to provide the air supply temperature that satisfies warm braw flue under the low temperature environment to the warm braw stove, shifts out the warm braw stove when need not heating the boiler, effectively reduces the forced draught blower power consumption.

The utility model relates to a boiler air supply heating system, include: the withdrawable warm air furnace is arranged in the warm air flue in a sliding manner and is used for supplying heat to the warm air flue; the heat storage facility is connected with the warm air furnace and provides heat for the warm air furnace, and the heat storage facility is used for storing soil heat; and the heat collector is connected with the heat storage facility and used for collecting solar energy, and the heat storage facility is also used for storing the heat of the heat collector.

Further, still including being used for connecting the slide mechanism of warm-air flue and warm-air furnace, slide mechanism including set up in the worm device of warm-air flue bottom, set up in warm-air furnace bottom and with transmission that the worm device tooth is connected and can drive worm device pivoted drive arrangement, drive arrangement can drive the worm device rotates in order to drive transmission removes, and then drives the warm-air furnace gets into or withdraws from the warm-air flue.

Further, the worm means comprises a pair of worms; the transmission device comprises a pair of gear transmission shafts, and each gear transmission shaft comprises a transmission shaft and gears which are arranged at two ends of the transmission shaft and are matched with the pair of worms.

Furthermore, the driving device comprises a first bevel gear arranged at the tail end of the worm, a second bevel gear matched with the first bevel gear, and a driving rod penetrating through the second bevel gear, wherein the driving rod can drive the second bevel gear to rotate so as to drive the first bevel gear to rotate.

Further, still include and be used for the intercommunication warm braw stove and heat-retaining facility's first inlet tube and first blast pipe, and set up in hot water pump on the first inlet tube.

Furthermore, the warm braw stove includes the furnace casing, crooked arrange in heat transfer pipeline in the furnace casing, with the water inlet hose that links to each other and be used for connecting the inlet channel of heat transfer pipeline, with the outlet of heat transfer pipeline links to each other and is used for connecting drainage pipe's drainage hose.

Furthermore, the heat collector is a solar heat collector and is arranged at the top of a power plant or a boiler house.

Furthermore, the solar water heater also comprises a second water inlet pipe which is connected with the water inlet end of the solar heat collector and is used for communicating with the first water inlet pipe, and a second water discharge pipe which is connected with the water discharge end of the solar heat collector and is used for communicating with the first water discharge pipe.

Furthermore, the system also comprises a fan arranged at one end of the warm air flue, which is far away from the boiler, and a boiler air preheater arranged between the warm air flue and the boiler.

Further, the heat storage facility is arranged on a soil porous medium heat storage layer.

The withdrawable warm air furnace is arranged in the warm air flue, renewable energy sources such as solar energy, soil heat and the like are utilized to supply heat to the warm air furnace in low temperature seasons, the air supply temperature of the warm air flue is met, and the heat supply energy consumption of the warm air flue is reduced; the withdrawable warm air furnace is moved out of the flue in non-low-temperature seasons, so that the resistance loss of the flue is effectively reduced, the power consumption of a fan is reduced, and the energy conservation and emission reduction are facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural view of a boiler supply air heating system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the warm air furnace shown in FIG. 1;

fig. 3 is a schematic structural diagram of a sliding mechanism according to an embodiment of the present invention.

Description of reference numerals: the boiler air supply heating system comprises a boiler air supply heating system 100, a warm air furnace 1, a furnace shell 101, a heat exchange pipeline 102, a water inlet hose 103, a water discharge hose 104, a warm air flue 2, a heat storage facility 3, a heat collector 4, a fan 5, a boiler air preheater 6, a sliding mechanism 7, a worm device 701, a worm 711, a transmission device 702, a transmission shaft 721, a gear 722, a driving device 703, a first bevel gear 712, a second bevel gear 731, a driving rod 732, a hand wheel 733, a first water inlet pipe 8, a first water discharge pipe 9, a hot water pump 10, a second water inlet pipe 11 and a second water discharge pipe 12.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 3, the present embodiment provides a boiler supply air heating system 100, comprising: the withdrawable warm air furnace 1 is arranged in the warm air flue 2 in a sliding manner, and the warm air furnace 1 is used for supplying heat to the warm air flue 2; the heat storage facility 3 is connected with the warm air furnace 1 and provides heat for the warm air furnace 1, and the heat storage facility 3 is used for storing soil heat; a heat collector 4 connected with the heat storage facility 3 and used for collecting solar energy, the heat storage facility 3 is also used for storing the heat of the heat collector 4.

In the embodiment, the withdrawable warm air furnace 1 is arranged in the warm air flue 2, renewable energy sources such as solar energy, soil heat and the like are utilized to supply heat to the warm air furnace 1 in low-temperature seasons, so that the air supply temperature of the warm air flue 2 is met, and the heat supply energy consumption of the warm air flue 2 is reduced; the withdrawable warm air furnace 1 is moved out of the flue in non-low-temperature seasons, so that the resistance loss of the flue is effectively reduced, the power consumption of the fan 5 is reduced, and the energy conservation and emission reduction are facilitated.

The boiler air supply heating system of this embodiment still includes and sets up in the fan 5 of warm braw flue keeping away from boiler one end, sets up the boiler air preheater 6 between warm braw flue 2 and boiler. The air supply of the boiler is powered by a fan 5, and the cold air is heated by the withdrawable warm air furnace 1 and the boiler air preheater 6 and then is used by the boiler.

The boiler air supply heating system 100 shown in this embodiment further includes a sliding mechanism 7 for connecting the warm air flue 2 and the warm air furnace 1, the sliding mechanism 7 includes a worm device 701 disposed at the bottom of the warm air flue 2, a transmission device 702 disposed at the bottom of the warm air furnace 1 and in tooth connection with the worm device 701, and a driving device 703 capable of driving the worm device 701 to rotate, and the driving device 703 can drive the worm device 701 to rotate so as to drive the transmission device 702 to move, so as to drive the warm air furnace 1 to enter or exit from the warm air flue 2.

The sliding mechanism 7 in this embodiment can realize the sliding connection between the warm air furnace 1 and the warm air flue 2, and in low temperature seasons, the driving device 703 drives the worm device 701 to rotate, so that the transmission device 702 moves towards the direction close to the warm air flue 2 to drive the warm air furnace 1 to enter the warm air flue 2, and the warm air furnace 1 supplies heat to the warm air flue 2; similarly, when the warm air flue 2 is not required to be heated in non-low-temperature seasons, the worm device 701 is driven to rotate by the driving device 703, so that the transmission device 702 moves in the direction away from the warm air flue 2 to drive the warm air furnace 1 to withdraw from the warm air flue 2, and compared with the fixed warm air furnace 1 arranged in the warm air flue 2, the resistance loss of hot air in the warm air flue 2 is effectively reduced, the power consumption of the fan 5 is reduced, and the market demand of modern energy conservation and emission reduction is met.

In a particular embodiment, in the boiler feed air heating system 100, the worm arrangement 701 comprises a pair of worms 711; the transmission 702 includes a pair of gear transmission shafts including a transmission shaft 721 and a gear 722 disposed at both ends of the transmission shaft 721 and engaged with the pair of worms 711. When the gear 722 rotates along the worm 711, the transmission shaft 721 moves to drive the warm air furnace 1 to move, so that the warm air furnace 1 enters or exits the warm air flue 2.

In this embodiment, the driving device 703 includes a first bevel gear 712 disposed at the end of the worm 711, a second bevel gear 731 engaged with the first bevel gear 712, and a driving rod 732 passing through the second bevel gear 731, wherein the driving rod 732 can drive the second bevel gear 731 to rotate so as to drive the first bevel gear 712 to rotate. In a preferred embodiment, the other end of the driving rod 732 is provided with a hand wheel 733, when the driving hand wheel 733 rotates, the driving rod 732 drives the second bevel gear 731 to rotate, the second bevel gear 731 and the first bevel gear 712 engage to drive the worm 711 to rotate, and then the gear 722 on the driving gear transmission shaft rotates to drive the driving gear transmission shaft to move, so as to drive the warm air furnace 1 to enter or exit the warm air flue 2, thereby realizing effective control of the position of the warm air furnace 1 relative to the warm air flue 2.

The boiler supply air heating system 100 in this embodiment further includes a first water inlet pipe 8 and a first water discharge pipe 9 for communicating the warm air furnace 1 and the heat storage facility 3, and a hot water pump 10 disposed on the first water inlet pipe 8. In a preferred embodiment, the heat exchange medium in the warm air furnace 1 and the heat storage facility 3 is hot water, the circulation of the hot water in the heating system is realized by arranging a first water inlet pipe 8 and a first water outlet pipe 9 for communicating the warm air furnace 1 and the heat storage facility 3, and the hot water in the heat storage facility 3 is pumped out by utilizing the power provided by the hot water pump 10 to provide the circulation power for the hot water in the pipeline.

In the boiler air supply heating system 100 of the present embodiment, the air heating furnace 1 includes a furnace casing 101, a heat exchange pipe 102 arranged in the furnace casing 101 in a bent manner, a water inlet hose 103 connected to a water inlet of the heat exchange pipe 102 and used for connecting to a water inlet pipe, and a water outlet hose 104 connected to a water outlet of the heat exchange pipe 102 and used for connecting to a water outlet pipe. Through setting up into water hose 103 and drainage hose 104, reserve the safety stroke for warm braw stove 1 gets into or withdraws from warm braw flue 2, guaranteed the effective removal of warm braw stove 1.

In a preferred embodiment, the heat collector 4 is a solar heat collector 4 and is arranged at the top of a power plant or a boiler house, so that the occupied area is effectively reduced, the heat collected by the solar heat collector 4 when the temperature is higher is stored to be used when the temperature is lower, the seasonal transfer and balance of heat are realized, and the energy is saved. The heat storage facility 3 is arranged on the soil porous medium heat storage layer and can absorb heat in the soil as much as possible. In a preferred embodiment, the heat storage facility 3 may be a hot water tank or a buried pipe. When the air temperature is low, the heat collected by the solar heat collector 4 and stored by the heat storage facility 3 is used for heating the air supplied by the boiler, so that the air supply temperature can be increased, the heat efficiency of the boiler is ensured, and the low-temperature corrosion risk of the air preheater is reduced.

The boiler air supply heating system 100 in this embodiment further includes a second water inlet pipe 11 connected to the water inlet end of the solar heat collector 4 and used for communicating with the first water inlet pipe 8, and a second water outlet pipe 12 connected to the water outlet end of the solar heat collector 4 and used for communicating with the first water outlet pipe 9. In this embodiment, hot water in the underground heat storage facility 3 is pumped out by the power of the hot water pump 10. In low-temperature seasons, a part of hot water is sent to the withdrawable air heating furnace 1 along the first water inlet pipe 8 to heat cold air, and the hot water after heat exchange returns to the underground heat storage facility 3 along the first water discharge pipe 9 to absorb heat in the soil heat storage layer; the other part of the hot water is sent to the solar heat collector 4 along the second water inlet pipe 11 to continuously absorb the solar heat, and then flows back to the underground heat storage facility 3 along the second water outlet pipe 12 to supplement heat for the underground heat storage facility 3.

In the embodiment, the heat collected by the solar heat collector 4 is stored in the underground heat storage facility 3 for the air supply of the heat source heating boiler of the withdrawable warm air furnace 1 in low-temperature seasons; meanwhile, the withdrawable warm air furnace 1 is removed from the warm air flue 2 in non-low-temperature seasons, so that the flue resistance loss is effectively reduced, the power consumption of the fan 5 is reduced, and the energy conservation and emission reduction are facilitated.

In the description of the present application, it is to be understood that the terms "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and 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.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A boiler supply air heating system, comprising:

the withdrawable warm air furnace is arranged in the warm air flue in a sliding manner and is used for supplying heat to the warm air flue;

the heat storage facility is connected with the warm air furnace and provides heat for the warm air furnace, and the heat storage facility is used for storing soil heat;

and the heat collector is connected with the heat storage facility and used for collecting solar energy, and the heat storage facility is also used for storing the heat of the heat collector.

2. The boiler supply air heating system of claim 1, further comprising a sliding mechanism for connecting the warm air flue and the warm air furnace, wherein the sliding mechanism comprises a worm device arranged at the bottom of the warm air flue, a transmission device arranged at the bottom of the warm air furnace and in tooth connection with the worm device, and a driving device capable of driving the worm device to rotate, and the driving device can drive the worm device to rotate so as to drive the transmission device to move, so that the warm air furnace is driven to enter or exit the warm air flue.

3. The boiler supply air heating system of claim 2, wherein the worm means comprises a pair of worms; the transmission device comprises a pair of gear transmission shafts, and each gear transmission shaft comprises a transmission shaft and gears which are arranged at two ends of the transmission shaft and are matched with the pair of worms.

4. The boiler air supply heating system of claim 3, wherein the driving device comprises a first bevel gear disposed at a distal end of the worm, a second bevel gear engaged with the first bevel gear, and a driving rod penetrating through the second bevel gear, wherein the driving rod is capable of driving the second bevel gear to rotate so as to drive the first bevel gear to rotate.

5. The boiler supply air heating system of claim 1, further comprising a first inlet tube and a first drain tube for communicating the warm air furnace and the heat storage facility, and a hot water pump disposed on the first inlet tube.

6. The boiler supply air heating system of claim 5, wherein the warm air furnace comprises a furnace shell, a heat exchange pipeline arranged in the furnace shell in a bent mode, a water inlet hose connected with a water inlet of the heat exchange pipeline and used for being connected with a water inlet pipeline, and a water drainage hose connected with a water outlet of the heat exchange pipeline and used for being connected with a water drainage pipeline.

7. The boiler air supply heating system of claim 5, wherein the heat collector is a solar heat collector disposed at a top of a power plant or boiler house.

8. The boiler supply air heating system of claim 7, further comprising a second inlet tube connected to the water inlet end of the solar collector and adapted to communicate with the first inlet tube, and a second drain tube connected to the drain end of the solar collector and adapted to communicate with the first drain tube.

9. The boiler supply air heating system of claim 1, further comprising a fan disposed on an end of the warm air flue remote from the boiler, and a boiler air preheater disposed between the warm air flue and the boiler.

10. The boiler supply air heating system of claim 1, wherein the heat storage facility is disposed in a soil porous medium heat storage layer.