CN218608466U

CN218608466U - Environmental protection nature gas recirculation device

Info

Publication number: CN218608466U
Application number: CN202222734324.0U
Authority: CN
Inventors: 诸育枫; 周科; 武振新; 徐党旗; 陈锋; 吴乃新; 陈胜军; 刘煜; 晋中华
Original assignee: Xian Thermal Power Research Institute Co Ltd; Shanghai Boiler Works Co Ltd; Huaneng Zhejiang Energy Development Co Ltd Yuhuan Branch
Current assignee: Xian Thermal Power Research Institute Co Ltd; Shanghai Boiler Works Co Ltd; Huaneng Zhejiang Energy Development Co Ltd Yuhuan Branch
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-03-14
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses an environmental protection type flue gas recirculation device, which comprises a flue gas recirculation box body, wherein a mounting pad is fixed at the bottom of the flue gas recirculation box body, a mounting seat is arranged at the bottom of the mounting pad, and one side of the flue gas recirculation box body is connected with a first connecting pipe; when the device is used, the smoke in the tower boiler has a large amount of heat, the smoke can be filtered through the corresponding dust collecting mechanism in the smoke recycling box, and meanwhile, after the smoke is filtered, a stable electric energy source can be stored in the storage battery, so that the effect of waste heat recovery is achieved, and the smoke is converted into the electric energy to achieve the purpose of environmental protection; the device is provided with the reinforcing mechanism, one end of the flue gas circulating pipe is embedded in the mounting sleeve, the reinforcing of the fixed sleeve and the rotating sleeve can be conveniently completed, the reinforcing of the connecting part of the flue gas circulating pipe and the outer side of the mounting sleeve can be improved, the auxiliary heat-insulating effect is achieved, and the heat loss of the connecting part of the flue gas circulating pipe and the mounting sleeve is reduced.

Description

Environmental protection nature gas recirculation device

Technical Field

The utility model relates to a flue gas recirculation device technical field specifically is feature of environmental protection flue gas recirculation device.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, the boiler is a device for heating working medium water or other fluids to certain parameters by using the heat energy released by fuel combustion or other heat energy, the tower boiler is a tower-type boiler with a hearth at the lower part and a convection flue at the upper part, a large-capacity (generally more than 300 MW) boiler rarely adopts a full-tower type, but only adopts a half-tower type, namely, an air preheater and a draught fan are arranged on the zero-meter ground, and the smoke in the tower boiler has a large amount of heat and can also emit a lot of heat;

the Chinese patent discloses a low-temperature flue gas recirculation device (No. CN 206257658U) for preventing high-temperature corrosion of a tower boiler, a tower boiler smoke-pumping port of the patent technology is installed in a low-temperature flue gas area of a tower boiler flue, a dust remover is installed at the front end of the tower boiler smoke-pumping port, the tower boiler smoke-pumping port is connected with a recirculation flue gas flue, a flue gas fan is arranged on the recirculation flue gas flue, the recirculation flue gas flue is connected with a tower boiler smoke-spraying port through an expansion joint, and the tower boiler smoke-spraying port is installed on a hearth area of the tower boiler easy to cause high-temperature corrosion. The utility model is applied to the high temperature corrosion prevention of the tower type power station pulverized coal boiler;

however, in the using process of the above-mentioned flue gas recirculation device, the heat emitted is lost greatly, the utilization rate is not high, and the waste heat is not easy to be utilized, and there are problems of not enough environmental protection and relatively wasting resources, therefore, those skilled in the art provide an environmental protection flue gas recirculation device to solve the problems proposed in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an environmental protection nature gas recirculation device to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: environmental protection nature gas recirculation device, including the gas recirculation box, the bottom of gas recirculation box is fixed with the mounting pad, the bottom of mounting pad is provided with the mount pad, one side of gas recirculation box is connected with first connecting pipe, the outside of gas recirculation box is connected with the second connecting pipe, the top of gas recirculation box is provided with waste heat recovery mechanism, the top of gas recirculation box is connected with the flue gas circulating pipe, the top of gas recirculation box is provided with the installation cover, reinforcing mechanism is installed at the top of installation cover, the top of gas recirculation box is provided with the flue gas and handles the pipe.

As a further aspect of the present invention: the waste heat recovery mechanism comprises a mounting rack, a connecting plate is fixed to one side of the mounting rack, a heat insulation plate is installed at the top of the connecting plate, a storage battery is arranged at the top of the heat insulation plate, an inverter is installed on one side of the storage battery, a ceramic plate is arranged at the top of the mounting rack, a plurality of metal plates are installed at the top of the ceramic plate and correspond to the top of each metal plate, a P-type semiconductor is arranged at the top of each metal plate, and an N-type semiconductor is connected to the top of each metal plate.

As a further aspect of the present invention: the metal plate is electrically connected with the inverter, and the lower bottom surface of the inverter is fixedly connected with the heat insulation plate.

As a further aspect of the present invention: one side of the mounting frame is embedded in the smoke recycling box body, and the connecting plate is fixedly bonded with the heat insulation plate.

As the utility model discloses further scheme again: reinforcing mechanism is including fixed cover, the outside of fixed cover articulates through the pivot has the rotation cover, fixed cover with the inside of rotating the cover all is provided with coupling spring, coupling spring's one end is connected with spacing pad, the outside of spacing pad is fixed with the connecting rod, the outside of connecting rod is provided with the activity and fills up, fixed cover with the outside of rotating the cover all is provided with the installation piece, the fixed cover outside the top of installation piece is fixed with fixed half threaded rod, the rotation cover outside the top of installation piece is fixed with movable half threaded rod, fixed half threaded rod with the gasket has been cup jointed in the outside activity of activity half threaded rod, fixed half threaded rod with the outside threaded connection of activity half threaded rod has metal nut.

As a further aspect of the present invention: the fixed cover with the inside of rotating the cover all is seted up flutedly, and the size of this recess with the size adaptation of activity pad.

As the utility model discloses further scheme again: the fixed cover with the through-hole has all been seted up to the inside of rotating the cover, and the size of this through-hole with the size adaptation of connecting rod.

As the utility model discloses further scheme again: the radius of the fixed half threaded rod is equal to that of the movable half threaded rod, and anti-skidding threads are arranged on the outer side of the metal nut.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. when the device is used, the device can be communicated with a tower boiler through a first connecting pipe and a flue gas recirculation box body, meanwhile, flue gas in the tower boiler has a large amount of heat, the flue gas can be filtered through a corresponding dust collecting mechanism in the flue gas recirculation box body, and meanwhile, after the flue gas is filtered, a stable electric energy source can be stored in a storage battery, so that the effect of waste heat recovery is achieved, the flue gas is converted into electric energy, the utilization rate is improved, the waste of resources is reduced, and the purpose of environmental protection is realized;

2. the device is provided with the reinforcing mechanism, when the flue gas circulating pipe is communicated with the flue gas recirculation box body, one end of the flue gas circulating pipe is embedded into the mounting sleeve, the reinforcing of the fixing sleeve and the rotating sleeve can be conveniently completed, the reinforcing of the connecting part of the flue gas circulating pipe and the outer side of the mounting sleeve can be improved, the auxiliary heat-insulating effect is achieved, and the heat loss of the connecting part of the flue gas circulating pipe and the mounting sleeve is reduced.

Drawings

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

fig. 1 is a front view of the present invention;

fig. 2 is a schematic structural view of the waste heat recovery mechanism of the present invention;

fig. 3 is a schematic structural diagram of the outer side of the mounting sleeve of the present invention;

fig. 4 is a schematic structural view of the reinforcing mechanism of the present invention;

FIG. 5 is a schematic view of the outer side structure of the metal nut of the present invention

FIG. 6 is a schematic view of the internal structure of the fixing sleeve of the present invention

In the figure: 1. a flue gas recirculation tank; 2. a mounting mat; 3. a mounting seat; 4. a first connecting pipe; 5. a second connecting pipe; 6. a waste heat recovery mechanism; 61. a mounting frame; 62. a connecting plate; 63. a heat insulation plate; 64. a battery; 65. an inverter; 66. a ceramic plate; 67. a metal plate; 68. a P-type semiconductor; 69. an N-type semiconductor; 7. a flue gas circulating pipe; 8. installing a sleeve; 9. a reinforcement mechanism; 91. fixing a sleeve; 92. rotating the sleeve; 93. a movable pad; 94. mounting a block; 95. fixing the half-threaded rod; 96. a movable half-threaded rod; 97. a gasket; 98. a metal nut; 99. a connecting spring; 910. a limiting pad; 911. a connecting rod; 10. a flue gas treatment pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the utility model provides an environmental protection type flue gas recirculation device, including a flue gas recirculation box 1, a mounting pad 2 is fixed at the bottom of the flue gas recirculation box 1, a mounting seat 3 is arranged at the bottom of the mounting pad 2, a first connecting pipe 4 is connected to one side of the flue gas recirculation box 1, a second connecting pipe 5 is connected to the outer side of the flue gas recirculation box 1, a waste heat recovery mechanism 6 is arranged at the top of the flue gas recirculation box 1, a flue gas circulating pipe 7 is connected to the top of the flue gas recirculation box 1, a mounting sleeve 8 is arranged at the top of the flue gas recirculation box 1, a reinforcing mechanism 9 is arranged at the top of the mounting sleeve 8, and a flue gas treatment pipe 10 is arranged at the top of the flue gas recirculation box 1;

waste heat recovery mechanism 6 includes mounting bracket 61, one side of mounting bracket 61 is fixed with connecting plate 62, heat insulating board 63 is installed at the top of connecting plate 62, one side embedding of mounting bracket 61 is in the inside of flue gas recirculation box 1, it is fixed to bond between connecting plate 62 and the heat insulating board 63, the top of heat insulating board 63 is provided with battery 64, inverter 65 is installed to one side of battery 64, the top of mounting bracket 61 is provided with ceramic plate 66, a plurality of metal sheets 67 are installed at the top of ceramic plate 66, the top that corresponds metal sheet 67 is provided with P type semiconductor 68, the top that corresponds metal sheet 67 is connected with N type semiconductor 69, electric connection between metal sheet 67 and the inverter 65, the lower bottom surface and heat insulating board 63 fixed connection of inverter 65.

This device is in the use, accessible first connecting pipe 4 and gas recirculation box 1 and tower boiler intercommunication, the flue gas has a large amount of heats in the tower boiler simultaneously, can filter the flue gas through the dust collecting mechanism that corresponds in the gas recirculation box 1, simultaneously after filtering, partial flue gas that has the waste heat can with the ceramic plate 66 side contact on the mounting bracket 61, and form the difference in temperature with N type semiconductor 69, under the mating reaction of P type

semiconductor ceramic plate

68 and 66, form the potential difference between the metal sheet 67 of both sides, can produce electric current, the electric current that produces passes through inverter 65 and converts, form and stabilize the electric energy source and store in the battery 64, waste heat recovery's effect has been reached, and convert into the electric energy, and the utilization ratio is improved, reduce the waste to the resource, realized comparatively environmental protection's purpose, and the bottom of inverter 65 and battery 64 all is provided with heat insulating board 63 and connecting plate 62, can play thermal-insulated and strengthen the effect of protecting inverter 65 and battery 64.

Please refer to fig. 1 and fig. 3-6, the utility model provides an environmental protection nature gas recirculation device, reinforcing mechanism 9 includes fixed cover 91, the outside of fixed cover 91 articulates through the pivot has rotating sleeve 92, the inside of fixed cover 91 and rotating sleeve 92 all is provided with coupling spring 99, the one end of coupling spring 99 is connected with spacing pad 910, the outside of spacing pad 910 is fixed with connecting rod 911, the outside of connecting rod 911 is provided with movable pad 93, fixed cover 91 and rotating sleeve 92 all seted up the recess, and the size of this recess and the size adaptation of movable pad 93, the outside of fixed cover 91 and rotating sleeve 92 all is provided with installation piece 94, the top of fixed cover 91 outside installation piece 94 is fixed with fixed semithreaded rod 95, the top of rotating sleeve 92 outside installation piece 94 is fixed with movable semithreaded rod 96, the outside activity of fixed semithreaded rod 95 and movable semithreaded rod 96 cup joints gasket 97, the outside threaded connection of fixed semithreaded rod 95 and movable semithreaded rod 96 has metal nut 98, the inside of fixed cover 91 and rotating sleeve 92 all has seted up the through-hole, and the size of this through-hole and the size adaptation of connecting rod 911, the radius adaptation of fixed semithreaded rod 95 and the outside of movable semithreaded rod 96 are provided with anti-skid-thread nut 98.

In the use process of the device, when the flue gas circulation pipe 7 is communicated with the flue gas recirculation box body 1, one end of the flue gas circulation pipe 7 is embedded into the installation sleeve 8, then the rotating sleeve 92 on the outer side of the fixed sleeve 91 can be shifted to rotate, the installation block 94 on the outer side of the fixed sleeve 91 is attached to the corresponding surface of the installation block 94 on the outer side of the rotating sleeve 92, at the moment, the elastic force is provided through the connecting spring 99 in the fixed sleeve 91 and the rotating sleeve 92, the limiting pad 910 and the connecting rod 911 can be pushed to move, the connecting rod 911 drives the movable pad 93 to be attached to the outer side of the corresponding flue gas circulation pipe 7, at the moment, the fixed semi-threaded rod 95 on the top of the installation block 94 on the outer side of the fixed sleeve 91 can be attached to the corresponding surface of the movable semi-threaded rod 96 on the top of the installation block 94 on the outer side of the rotating sleeve 92, the gasket 97 and the metal nut 98 can be sleeved on the outer sides of the fixed semi-threaded rod 95 and the movable semi-threaded rod 96, then the metal nut 98 can be rotated clockwise, the metal nut 98 is connected with the fixed semi-threaded rod 95 and the movable semi-threaded rod 96, thereby conveniently completing the reinforcement of the fixed sleeve 91 and the auxiliary heat insulation of the flue gas circulation pipe 7 and the auxiliary heat insulation connection of the flue gas circulation pipe 8.

Finally, it should be noted that: 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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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. Environmental protection nature gas recirculation device, including gas recirculation box (1), its characterized in that, the bottom of gas recirculation box (1) is fixed with mounting pad (2), the bottom of mounting pad (2) is provided with mount pad (3), one side of gas recirculation box (1) is connected with first connecting pipe (4), the outside of gas recirculation box (1) is connected with second connecting pipe (5), the top of gas recirculation box (1) is provided with waste heat recovery mechanism (6), the top of gas recirculation box (1) is connected with flue gas circulating pipe (7), the top of gas recirculation box (1) is provided with installing sleeve (8), reinforcing mechanism (9) are installed at the top of installing sleeve (8), the top of gas recirculation box (1) is provided with flue gas treatment pipe (10).

2. The environmental protection nature gas recirculation device of claim 1, characterized in that, waste heat recovery mechanism (6) includes mounting bracket (61), one side of mounting bracket (61) is fixed with connecting plate (62), heat insulating board (63) are installed at the top of connecting plate (62), the top of heat insulating board (63) is provided with battery (64), dc-to-ac converter (65) are installed to one side of battery (64), the top of mounting bracket (61) is provided with ceramic plate (66), a plurality of metal sheets (67) are installed at the top of ceramic plate (66), correspond the top of metal sheet (67) is provided with P type semiconductor (68), correspond the top of metal sheet (67) is connected with N type semiconductor (69).

3. The environmentally friendly flue gas recirculation apparatus according to claim 2, wherein the metal plate (67) is electrically connected to the inverter (65), and a lower bottom surface of the inverter (65) is fixedly connected to the heat shield (63).

4. An environmentally friendly flue gas recirculation device according to claim 2, wherein one side of the mounting bracket (61) is embedded in the flue gas recirculation tank body (1), and the connecting plate (62) and the heat insulation plate (63) are fixedly bonded.

5. The environmentally friendly flue gas recirculation device according to claim 1, wherein the reinforcement mechanism (9) comprises a fixed sleeve (91), the outer side of the fixed sleeve (91) is hinged with a rotating sleeve (92) through a rotating shaft, the fixed sleeve (91) and the inner part of the rotating sleeve (92) are both provided with connecting springs (99), one end of the connecting spring (99) is connected with a limiting pad (910), the outer side of the limiting pad (910) is fixed with a connecting rod (911), the outer side of the connecting rod (911) is provided with a movable pad (93), the fixed sleeve (91) and the outer side of the rotating sleeve (92) are both provided with a mounting block (94), the top of the mounting block (94) is fixed with a fixed semi-threaded rod (95) outside the rotating sleeve (92), the top of the mounting block (94) is fixed with a movable semi-threaded rod (96), the outer side of the fixed semi-threaded rod (95) and the movable semi-threaded rod (96) is movably sleeved with a gasket (97), and the outer side of the fixed semi-threaded rod (95) and the movable semi-threaded rod (96) is connected with a metal nut (98).

6. The environmentally friendly flue gas recirculation device according to claim 5, wherein the fixed sleeve (91) and the rotating sleeve (92) are both internally provided with grooves, and the size of the grooves is matched with that of the movable pad (93).

7. The environmentally friendly flue gas recirculation device according to claim 5, wherein the fixed sleeve (91) and the rotating sleeve (92) are provided with through holes inside, and the size of the through holes is adapted to the size of the connecting rod (911).

8. The environmentally friendly flue gas recirculation device according to claim 5, characterized in that the radius of the fixed half-threaded rod (95) is equal to the radius of the movable half-threaded rod (96), and the outer side of the metal nut (98) is provided with anti-slip threads.