CN213362409U

CN213362409U - Boiler waste heat recycling device

Info

Publication number: CN213362409U
Application number: CN202021695310.7U
Authority: CN
Inventors: 陈水泉; 冯琦; 张军; 倪洪炜; 沈艺强; 王斌; 徐定海
Original assignee: Anji Lingang Thermal Power Co ltd
Current assignee: Anji Lingang Thermal Power Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-06-04
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a boiler waste heat retrieval and utilization device, including the boiler, the boiler top is equipped with the pipe of discharging fume, discharge fume and be equipped with vapour and liquid separator on the pipe, the last outlet duct that is equipped with of vapour and liquid separator, outlet pipe one, the intake pipe is equipped with in the boiler both sides, inlet tube one, outlet duct intercommunication intake pipe, intake-tube connection boiler burner, inlet tube one connects holding water tank, the boiler bottom is equipped with waste residue export one, waste residue export one bottom is connected with mixed water tank, mixed water tank's bottom is equipped with the discharge gate, the discharge gate bottom is connected with the separator box, the separator box bottom is connected with outlet. During the use, the flue gas gets into under the vapour and liquid separator effect, and high-temperature gas can enter into the boiler and burn once more, and high-temperature liquid is in entering into holding water box, realizes the retrieval and utilization to the flue gas in, and cold water and waste residue mix the back, and the waste residue is retrieved, and the water that has risen to is taken out through water pump two and is gone into in the holding water box, has realized the utilization to the waste residue energy, has reduced the energy consumption.

Description

Boiler waste heat recycling device

Technical Field

The utility model relates to a boiler field, concrete field is a boiler waste heat retrieval and utilization device.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator.

At present, the utilization ratio of energy resources in China is low, mainly the utilization ratio of industrial waste heat is low, the energy resources are not fully and comprehensively utilized, and the energy resources are also the main emission source of pollutants, so that the ecological environment is greatly damaged, the energy is saved, the emission is reduced, the energy consumption is reduced, and the comprehensive utilization ratio of the energy resources is improved. In the prior art, the flue gas reflux technology mainly applied still has certain energy loss, and can not fully utilize the energy of waste residues.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler waste heat retrieval and utilization device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a boiler waste heat recycling device comprises a boiler, wherein a smoke exhaust pipe is installed at the top of the boiler, a gas-liquid separator is installed at the top of the smoke exhaust pipe, an outlet pipe and a first water outlet pipe are installed on two sides of the gas-liquid separator respectively, an inlet pipe and a first water inlet pipe are installed on two sides of the boiler respectively, one end, far away from the gas-liquid separator, of the outlet pipe is communicated with the inlet pipe, one end, far away from the boiler, of the inlet pipe is connected with a boiler burner, one end, far away from the boiler, of the first water inlet pipe is connected with a heat preservation water tank, one end, far away from the gas-liquid separator, of the outlet pipe is connected with the top of the heat preservation water tank, a first waste residue outlet is arranged at the bottom of the boiler, a mixed, the bottom of the mixed water tank is provided with a discharge port, the bottom of the discharge port is connected with a separation box, the bottom of the separation box is connected with a second water outlet pipe, one end, away from the separation box, of the second water outlet pipe is connected with a second water inlet end of a water pump, the second water outlet end of the water pump is connected with a third water outlet pipe, and one end, away from the third water outlet pipe, of the second water pump is connected with the heat preservation water.

Preferably, the boiler is provided with a feed inlet.

Preferably, the boiler burner is connected with the air inlet pipe through a flange.

Preferably, install valve one on the inlet tube one, install valve two on the inlet tube two, install valve three on the outlet pipe two, install valve four on the outlet pipe three.

Preferably, the top end in the separation box is fixed with the purification filter screen of slope placing, the border of purifying the filter screen is all fixed the inner wall of separation box.

Preferably, the outer wall of the separation box is provided with a second waste residue outlet which is positioned at the bottom end of the edge of the purification filter screen.

Preferably, the outer wall of the separation box is provided with an observation window, and the observation window is made of transparent materials.

Preferably, the bottom of the waste residue outlet II is provided with a recycling bin.

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

1. the boiler burner is started to enable fuel in the boiler to burn, high-temperature flue gas generated by burning enters the gas-liquid separator through the smoke exhaust pipe to be subjected to gas-liquid separation, the high-temperature gas enters the air inlet pipe through the air outlet pipe, the high-temperature gas enters the boiler to be burned again under the driving of the boiler burner, the separated high-temperature liquid enters the heat preservation water tank through the first water outlet pipe, water used for boiler burning is supplied, the heat preservation water tank is heated simultaneously, the energy consumption of the heat preservation water tank is reduced, the flue gas is recycled, and the boiler burner is energy-saving and efficient.

2. The first valve, the second valve, the third valve and the fourth valve are opened in sequence, waste residues are generated after fuel in the boiler is combusted, the waste residues enter the mixed water tank through the first waste residue outlet, the first water pump is started, the first water pump enables pumped cold water to enter the mixed water tank, the temperature of the cold water rises at the high temperature of the waste residues and flows to the separation box, the waste residues soaked by the cold water enter the recovery barrel through the second waste residue outlet under the action of the purification filter screen, and the waste residues are recovered.

3. The water heated by the waste residues enters the bottom of the separation box through the purification filter screen, the second water pump is started, the heated water is pumped into the heat-preservation water tank, hot water required by boiler combustion is supplemented, the utilization of waste residue energy is realized, and the energy consumption is reduced.

Drawings

Fig. 1 is a schematic structural view of the boiler waste heat recycling device of the present invention.

In the figure: 1. a boiler; 2. a smoke exhaust pipe; 3. a gas-liquid separator; 4. an air outlet pipe; 5. a first water outlet pipe; 6. An air inlet pipe; 7. a first water inlet pipe; 8. a boiler burner; 9. a heat preservation water tank; 10. a waste residue outlet I; 11. A mixing water tank; 12. a water inlet pipe II; 13. a first water pump; 14. a discharge port; 15. a separation tank; 16. a water outlet pipe II; 17. a second water pump; 18. a water pipe III; 19. a feed inlet; 20. a flange; 21. a first valve; 22. A second valve; 23. a third valve; 24. a fourth valve; 25. purifying a filter screen; 26. a waste residue outlet II; 27. An observation window; 28. and (6) recycling the barrel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Example 1: referring to fig. 1, the present invention provides a technical solution: a boiler waste heat recycling device comprises a boiler 1, wherein a smoke exhaust pipe 2 is installed at the top of the boiler 1, a gas-liquid separator 3 is installed at the top of the smoke exhaust pipe 2, an outlet pipe 4 and a first water outlet pipe 5 are installed on two sides of the gas-liquid separator 3 respectively, an inlet pipe 6 and a first water inlet pipe 7 are installed on two sides of the boiler 1 respectively, one end, far away from the gas-liquid separator 3, of the outlet pipe 4 is communicated with the inlet pipe 6, one end, far away from the boiler 1, of the inlet pipe 6 is connected with a boiler burner 8, one end, far away from the boiler 1, of the first water inlet pipe 7 is connected with a heat preservation water tank 9, one end, far away from the gas-liquid separator 3, of the first water outlet pipe 5 is connected with the top of the heat preservation water tank 9, a first waste residue outlet 10 is arranged, the one end that the inlet tube two 12 kept away from mix water tank 11 is connected with water pump 13, the bottom of mix water tank 11 is equipped with discharge gate 14, discharge gate 14 bottom is connected with separator box 15, be provided with feed inlet 19 on the boiler 1, boiler combustor 8 with connect through flange 20 between the intake pipe 6.

Through the above technical scheme of the utility model, make 1 interior fuel burning work of boiler through starting boiler combustor 8, the high temperature flue gas that the burning produced carries out gas-liquid separation in entering into vapour and liquid separator 3 through discharging fume pipe 2, high temperature gas passes through in outlet duct 4 enters into intake pipe 6, enter into boiler 1 in the reburning under boiler combustor 8's drive, the high temperature liquid of separation enters into holding water box 9 through outlet pipe one 5 in, supply boiler 1 burns used water, give holding water box 9 simultaneously and heat, reduce holding water box 9 energy consumption, the realization is to the retrieval and utilization of flue gas, energy-conservation and high efficiency.

Example 2: referring to fig. 1, a first valve 21 is installed on the first water inlet pipe 7, a second valve 22 is installed on the second water inlet pipe 12, a third valve 23 is installed on the second water outlet pipe 16, a fourth valve 24 is installed on the third water outlet pipe 18, a purification filter screen 25 which is obliquely placed is fixed at the top end inside the separation box 15, the edges of the purification filter screen 25 are fixed on the inner wall of the separation box 15, a second waste residue outlet 26 located at the bottom end of the edge of the purification filter screen 25 is formed in the outer wall of the separation box 15, and a recycling bin 28 is arranged at the bottom of the second waste residue outlet 26.

Through the above technical scheme of the utility model, open valve one 21 in proper order, valve two 22, valve three 23, valve four 24, produce the waste residue after the fuel burning in the boiler 1, enter into mixed water tank 11 through waste residue export 10 in, start water pump 13, water pump 13 enters into mixed water tank 11 with the cold water of taking out in, cold water temperature risees under the waste residue high temperature, and flow to in separator box 15, under the effect of purifying and filtering net 25, the waste residue that has been soaked by cold water can enter into in the recycling bin 28 through waste residue export two 26, realize the recovery to the waste residue.

Example 3: referring to fig. 1, a second water outlet pipe 16 is connected to the bottom of the separation tank 15, a second water inlet end of a second water pump 17 is connected to one end of the second water outlet pipe 16, which is far away from the separation tank 15, a third water outlet end of the second water pump 17 is connected to a third water outlet pipe 18, one end of the third water outlet pipe 18, which is far away from the second water pump 17, is connected to the heat-preservation water tank 9, an observation window 27 is arranged on the outer wall of the separation tank 15, and the observation window 27 is.

Through the above technical scheme of the utility model, the water that is heaied up by the waste residue can get into the bottom of separator box 15 through purifying and filtering net 25, observes through observation window 27 after the water level rises to suitable position, opens two 17 water pumps, takes out holding water tank 9 with the water after heaing up in, supplements the required hot water of boiler 1 burning, has realized the utilization to the waste residue energy, has reduced the energy consumption.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

When in actual use, start boiler burner 8 and make 1 interior fuel combustion work of boiler, the high temperature flue gas that the burning produced carries out gas-liquid separation in entering into vapour and liquid separator 3 through exhaust pipe 2, high temperature gas enters into in intake pipe 6 through outlet duct 4, enter into boiler 1 under boiler burner 8's the drive and burn once more, the high temperature liquid of separation enters into holding water box 9 through outlet pipe one 5 in, supply boiler 1 used water of burning, give holding water box 9 simultaneously and heat, reduce holding water box 9 energy consumption, realize the retrieval and utilization to the flue gas, it is energy-conserving high-efficient. The first valve 21, the second valve 22, the third valve 23 and the fourth valve 24 are opened in sequence, waste slag is generated after fuel in the boiler 1 is combusted, the waste slag enters the mixed water tank 11 through the first waste slag outlet 10, the first water pump 13 is started, the first water pump 13 pumps cold water into the mixed water tank 11, the temperature of the cold water is raised at high temperature of the waste slag, the cold water flows into the separation tank 15, the waste slag soaked by the cold water enters the recovery barrel 28 through the second waste slag outlet 26 under the action of the purification filter screen 25, and the waste slag is recovered. The water heated by the waste residue can enter the bottom of the separation box 15 through the purification filter screen 25, the water level is observed to rise to a proper position through the observation window 27, the second water pump 17 is opened, the heated water is pumped into the heat preservation water tank 9, the hot water required by combustion of the boiler 1 is supplemented, the utilization of the energy of the waste residue is realized, and the energy consumption is reduced.

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

1. The boiler waste heat recycling device is characterized by comprising a boiler (1), wherein a smoke exhaust pipe (2) is installed at the top of the boiler (1), a gas-liquid separator (3) is installed at the top of the smoke exhaust pipe (2), an air outlet pipe (4) and a water outlet pipe (5) are installed on two sides of the gas-liquid separator (3), an air inlet pipe (6) and a water inlet pipe (7) are installed on two sides of the boiler (1) respectively, one end, far away from the gas-liquid separator (3), of the air outlet pipe (4) is communicated with the air inlet pipe (6), one end, far away from the boiler (1), of the air inlet pipe (6) is connected with a boiler burner (8), one end, far away from the boiler (1), of the water inlet pipe (7) is connected with a heat preservation water tank (9), one end, far away from the gas-liquid separator (3, the bottom of boiler (1) is equipped with waste residue export (10), waste residue export (10) bottom is connected with mixing tank (11), one side of mixing tank (11) is connected with inlet tube two (12), keep away from inlet tube two (12) the one end of mixing tank (11) is connected with water pump one (13), the bottom of mixing tank (11) is equipped with discharge gate (14), discharge gate (14) bottom is connected with separator box (15), separator box (15) bottom is connected with outlet pipe two (16), keep away from outlet pipe two (16) the one end of separator box (15) is connected with water pump two (17) and intakes the end, water pump two (17) play water end is connected with outlet pipe three (18), keep away from outlet pipe three (18) the one end of water pump two (17) is connected holding water box (9).

2. The boiler waste heat recycling device according to claim 1, characterized in that the boiler (1) is provided with a feeding port (19).

3. The boiler waste heat recycling device according to claim 1, wherein the boiler burner (8) is connected with the air inlet pipe (6) through a flange (20).

4. The boiler waste heat recycling device according to claim 1, wherein a first valve (21) is installed on the first water inlet pipe (7), a second valve (22) is installed on the second water inlet pipe (12), a third valve (23) is installed on the second water outlet pipe (16), and a fourth valve (24) is installed on the third water outlet pipe (18).

5. The boiler waste heat recycling device according to claim 1, wherein a purification filter screen (25) is fixed at the top end inside the separation box (15) and is placed obliquely, and edges of the purification filter screen (25) are fixed on the inner wall of the separation box (15).

6. The boiler waste heat recycling device according to claim 5, characterized in that a second waste residue outlet (26) located at the bottom end of the edge of the purification filter screen (25) is formed in the outer wall of the separation box (15).

7. The boiler waste heat recycling device according to claim 1, wherein an observation window (27) is provided on an outer wall of the separation box (15), and the observation window (27) is made of a transparent material.

8. The boiler waste heat recycling device according to claim 6, wherein a recycling bin (28) is arranged at the bottom of the second waste residue outlet (26).