Environment-friendly and energy-saving power plant boiler

Abstract

The utility model discloses an environment-friendly energy-saving power plant boiler, which relates to the technical field of boilers and comprises a boiler body, a screw feeder is mounted on one side of the boiler body, the bottom end of the screw feeder is connected with a support rod, a hopper is mounted at the top end of the screw feeder, and an ash collecting box is mounted in the boiler body. Baffles are connected to the two sides of the surface of the spiral feeder correspondingly, and a first semicircular pipe and a second semicircular pipe are connected between the baffles. According to the utility model, the flue gas at the flue gas outlet of the boiler is introduced into the two semicircular pipes, and the waste heat of the flue gas is utilized to preheat the surface of the spiral feeder and the conveyed combustion material, so that on one hand, the problem of insufficient combustion of the combustion material caused by factors such as humidity can be reduced, the combustion efficiency is improved, and the fuel is more fully utilized; fuel waste is reduced; on the other hand, flue gas waste heat is fully utilized, invalid loss of energy is reduced, and the concept of environmental protection and energy conservation is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler technical field especially relates to a kind of environmental protection energy-saving power plant boiler. BACKGROUND

[0002] Power plant boiler, also known as power station boiler, is one of the key equipment of thermal power plant. Its core function is to convert the chemical energy of fuel (such as coal, natural gas, oil, etc.) into heat energy through combustion, heat water into high-temperature and high-pressure steam, drive the steam turbine to rotate, and then drive the generator to generate electricity. The current power plant boiler is usually fed into the inside of the boiler by the screw feeder during use, and due to the moisture of some materials, it is difficult to fully burn, which will produce a large amount of unburned carbon particles and harmful gases such as carbon monoxide, increasing the emission of pollutants. SUMMARY

[0003] The utility model provides a kind of environmental protection energy-saving power plant boiler, solve the problem in background art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of environmental protection energy-saving power plant boiler, including boiler body, the side of the boiler body is installed with screw feeder, and the bottom end of screw feeder is connected with support rod, and the top end of screw feeder is installed with hopper, the inside of the boiler body is installed with ash collection box;

[0006] The surface of the screw feeder is connected with baffle on both sides, and the first semicircular pipe and the second semicircular pipe are connected between the baffles;

[0007] The top of the boiler body is connected with the smoke outlet connected with the first semicircular pipe, the first semicircular pipe and the second semicircular pipe are installed with spiral guide plate in the inside, and the bottom end of the second semicircular pipe is connected with smoke pipe on one side.

[0008] As a further description of the above technical scheme:

[0009] The bottom end of the second semicircular pipe is connected with water storage pipe on the other side.

[0010] As a further description of the above technical scheme:

[0011] The first semicircular pipe is provided with a clamping groove on one side, and the second semicircular pipe is provided with a clamping block on one side.

[0012] As a further description of the above technical scheme:

[0013] The distance between the two baffles on the surface of the screw feeder is the same as the length of the first semicircular pipe and the second semicircular pipe.

[0014] As a further description of the above technical solutions:

[0015] The surface of the screw feeder is sleeved with an annular plate, an inner wall of the annular plate is connected with a rack, a surface of the rack is connected with a gear, a surface of the gear is connected with a threaded rod which is in threaded connection with the baffle, and threaded grooves in threaded connection with the threaded rod are formed in two ends of the first semicircular pipe and the second semicircular pipe.

[0016] As a further description of the above technical solutions:

[0017] An inner bottom end of the annular plate is provided with a sliding groove, and a sliding block in rotational connection with a bottom end of the threaded rod is slidably connected in the sliding groove.

[0018] As described above, due to the adoption of the above technical solutions, the beneficial effects of the present application are:

[0019] In the present application, the flue gas from the flue gas outlet of the boiler is introduced into the interiors of the two semicircular pipes, and the screw feeder surface and the conveyed combustion material are preheated by using the waste heat of the flue gas. On the one hand, the problem of insufficient combustion of the combustion material caused by moisture and other factors can be reduced, the combustion efficiency is improved, the fuel is more fully utilized, and fuel waste is reduced. On the other hand, the waste heat of the flue gas is fully utilized, the invalid dissipation of energy is reduced, and the concept of environmental protection and energy saving is met. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a schematic diagram of an environmental protection and energy saving power plant boiler structure.

[0021] Fig. 2 It is a schematic diagram of the surface structure of the first semicircular pipe and the second semicircular pipe in the present application.

[0022] Fig. 3 It is a schematic diagram of the internal part structure of the annular plate in the present application.

[0023] LEGEND:

[0024] 1, boiler body; 2, screw feeder; 3, support rod; 4, hopper; 5, baffle; 6, first semicircular pipe; 7, second semicircular pipe; 8, flue gas outlet; 9, spiral guide plate; 10, flue gas pipe; 11, water storage pipe; 12, ash collection box; 13, clamping block;

[0025] 14, annular plate; 15, rack; 16, gear; 17, threaded rod; 18, threaded groove;

[0026] 19, sliding groove; 20, sliding block. DETAILED DESCRIPTION

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] With reference to Figs. 1-3 The utility model provides an environmental protection and energy -conserving power plant boiler, including the boiler body 1, the one side of boiler body 1 is installed spiral feeder 2, and the bottom of spiral feeder 2 is connected with support rod 3, and the top of spiral feeder 2 is installed hopper 4, and the inside of boiler body 1 is installed ash collection box 12, the both sides of the surface of spiral feeder 2 are connected with baffle 5, and between baffle 5 is connected with first semicircle pipe 6 with second semicircle pipe 7, the top of boiler body 1 is connected with the smoke outlet 8 that first semicircle pipe 6 is connected, and the inside of first semicircle pipe 6 with second semicircle pipe 7 is installed spiral guide plate 9, and the bottom one side of second semicircle pipe 7 is connected with smoke pipe 10, when boiler body 1 works, the flue gas generated can be discharged into the inside of semicircle pipe through smoke outlet 8, can be preheated to the combustion material in spiral feeder 2 through the preheating of flue gas, makes it more easily reach ignition temperature, burns more fully, reduces the emission of unburnt material, reduces pollutant generation, and the flue gas in the inside of semicircle pipe can be discharged into the inside of desulfurization and denitrification and filter equipment through smoke pipe 10, and is not directly discharged to flue gas, and through the spiral guide plate 9 arranged in the inside of semicircle pipe, flue gas forms spiral flow in semicircle pipe, this can increase the contact time and contact area of flue gas and semicircle pipe inner wall and spiral feeder 2 surface, improve heat exchange efficiency, and the top of first semicircle pipe 6 is connected with connecting pipe, and the connecting pipe and smoke outlet 8 are connected through detachable mode, convenient for subsequent disassembly of semicircle pipe.

[0029] Further, the bottom of the second semicircle pipe 7 is connected with a water storage pipe 11 on the other side, which collects the water in the semicircle pipe for subsequent centralized treatment. The bottom of the water storage pipe 11 is connected with a cover.

[0030] Further, the first semicircle pipe 6 is provided with a clamping groove on one side, and the second semicircle pipe 7 is provided with a clamping block 13 on one side which is connected with the clamping groove by clamping, which is convenient for connecting the first semicircle pipe 6 and the second semicircle pipe 7 into a circular pipe by the clamping block 13 and the clamping groove, and also convenient for disassembling.

[0031] Further, the distance between the two baffles 5 on the surface of the screw feeder 2 is the same as the length of the first semicircular tube 6 and the second semicircular tube 7, which is convenient for shielding the two ends of the two semicircular tubes through the baffles 5 on both sides, and a sealing ring or other sealing device can be arranged at the connection to avoid leakage of flue gas.

[0032] Further, the surface of the screw feeder 2 is sleeved with an annular plate 14, the inner wall of the annular plate 14 is connected with a rack 15, the surface of the rack 15 is connected with a gear 16, the surface of the gear 16 is connected with a threaded rod 17 which is in threaded connection with the baffle 5, and the two ends of the first semicircular tube 6 and the second semicircular tube 7 are respectively provided with threaded grooves 18 which are in threaded connection with the threaded rod 17, which is convenient for moving the rack 15 on the surface of the gear 16 by rotating the annular plate 14, so as to drive the gear 16 and the threaded rod 17 to rotate, and since the threaded rod 17 is in threaded connection with the baffle 5, it can be rotated and moved to be inserted into the threaded groove 18 to limit the two semicircular tubes, and vice versa, which is convenient for disassembling and cleaning the surface of the semicircular tube and the screw feeder 2, avoiding dust, particulate matter and other impurities in the flue gas which may be deposited on the inner wall of the semicircular tube, affecting the heat exchange efficiency, or even blocking the semicircular tube, and the same is true for the surface of the screw feeder 2.

[0033] Further, a sliding groove 19 is formed in the inner bottom end of the annular plate 14, and a sliding block 20 which is in rotational connection with the bottom end of the threaded rod 17 is slidably connected in the sliding groove 19, which is convenient for moving the annular plate 14 through the sliding groove 19 at the top end of the sliding block 20, and also convenient for rotating the threaded rod 17 on the surface of the sliding block 20.

[0034] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An environmentally friendly and energy-saving power plant boiler, comprising a boiler body (1), characterized in that: A screw feeder (2) is installed on one side of the boiler body (1), and a support rod (3) is connected to the bottom end of the screw feeder (2). A hopper (4) is installed at the top of the screw feeder (2). An ash collection box (12) is installed inside the boiler body (1). The screw feeder (2) has baffles (5) connected to both sides of its surface, and a first semi-circular tube (6) and a second semi-circular tube (7) are connected between the baffles (5); The top of the boiler body (1) is connected to a flue gas outlet (8) connected to the first semi-circular tube (6). The first semi-circular tube (6) and the second semi-circular tube (7) are equipped with spiral guide plates (9), and the bottom end of the second semi-circular tube (7) is connected to a flue gas outlet pipe (10).

2. The environmentally friendly and energy-saving power plant boiler according to claim 1, characterized in that: A water storage pipe (11) is connected to the other side of the bottom end of the second semi-circular pipe (7).

3. The environmentally friendly and energy-saving power plant boiler according to claim 1, characterized in that: A slot is provided on one side of the first semi-circular tube (6), and a block (13) is provided on one side of the second semi-circular tube (7) to engage with the slot.

4. The environmentally friendly and energy-saving power plant boiler according to claim 1, characterized in that: The distance between the two baffles (5) on the surface of the screw feeder (2) is the same as the length of the first semicircular tube (6) and the second semicircular tube (7).

5. The environmentally friendly and energy-saving power plant boiler according to claim 1, characterized in that: The surface of the screw feeder (2) is movably fitted with an annular plate (14), and the inner wall of the annular plate (14) is connected with a rack (15). The surface of the rack (15) is connected with a gear (16), and the surface of the gear (16) is connected with a threaded rod (17) that is threaded to the baffle (5). The two ends of the first semi-circular tube (6) and the second semi-circular tube (7) are respectively provided with threaded grooves (18) that are threaded to the threaded rod (17).

6. The environmentally friendly and energy-saving power plant boiler according to claim 5, characterized in that: The annular plate (14) has a groove (19) at its bottom inside, and a slider (20) is slidably connected inside the groove (19) and is rotatably connected to the bottom of the threaded rod (17).

Images