阅读说明：本技术 一种风机上置型全预混锅炉及其工作方法 (Fan overhead type full-premix boiler and working method thereof ) 是由 陈健 王咏梅 许立锟 徐展 郭宇晨 于 2021-09-24 设计创作，主要内容包括：本发明公开了一种风机上置型全预混锅炉及其燃烧方法,包括锅炉、风机、冷凝系统、排污系统,锅炉包括入气口和积水管,积水管连接在锅炉尾部底端,冷凝系统包括入水管和出水管,出水管一端连接锅炉并靠近入气口,入水管一端连接锅炉并靠近锅炉尾部,入水管短于出水管,出水管上安装有调节阀,风机包括进气装置、鼓风机和出气装置,进气装置连接鼓风机,鼓风机和出气装置连通,出气装置连接至锅炉的入气口,入水管从锅炉尾部通入冷凝水冷却。实现了将燃气和空气比例混合燃烧,将热量充分吸收,快速冷却产生的烟气,进行充分中和后排放至环境中,解决了工作流程慢,环境污染大、损害人身健康的问题,具有工作流程快、环境污染小的特点。(The invention discloses a fan-overhead type full-premix boiler and a combustion method thereof, and the boiler comprises a boiler, a fan, a condensation system and a sewage discharge system, wherein the boiler comprises an air inlet and a water accumulation pipe, the water accumulation pipe is connected to the bottom end of the tail part of the boiler, the condensation system comprises a water inlet pipe and a water outlet pipe, one end of the water outlet pipe is connected with the boiler and close to the air inlet, one end of the water inlet pipe is connected with the boiler and close to the tail part of the boiler, the water inlet pipe is shorter than the water outlet pipe, an adjusting valve is arranged on the water outlet pipe, the fan comprises an air inlet device, an air blower and an air outlet device, the air inlet device is connected with the air blower, the air blower is communicated with the air outlet device, the air outlet device is connected to the air inlet of the boiler, and the water inlet pipe is cooled by introducing condensed water from the tail part of the boiler. The gas and air are mixed and combusted in proportion, heat is fully absorbed, smoke generated by rapid cooling is discharged to the environment after being fully neutralized, the problems of slow work flow, large environmental pollution and damage to human health are solved, and the gas and air mixed combustion device has the characteristics of quick work flow and small environmental pollution.)

1. The utility model provides a complete boiler that mixes of fan overhead type which characterized in that: comprises a boiler (1), a fan (2) and a condensing system (3), blowdown system (4), boiler (1) is including gas inlet (5) and long-pending water pipe (6), long-pending water pipe (6) are connected in boiler (1) afterbody bottom, condensing system (3) are including oral siphon (7) and outlet pipe (8), boiler (1) and be close to oral siphon (5) are connected to outlet pipe (8) one end, oral siphon (7) one end is connected boiler (1) and is close to boiler (1) afterbody, oral siphon (7) are short in outlet pipe (8), install governing valve (9) on outlet pipe (8), fan (2) are including air inlet unit (10), air-blower (11) and air outlet means (12), air-blower (11) are connected in air inlet unit (10), air-blower (11) and air outlet means (12) intercommunication, air outlet means (12) are connected to oral siphon (5) of boiler (1).

2. The fan-mounted fully-premixed boiler according to claim 1, wherein: boiler (1) includes heat-conducting layer (13) and combustion chamber (14), and heat-conducting layer (13) surround in combustion chamber (14) outside, and exhaust system (4) are including exhaust port (23) and leakage fluid dram (24), and establish at boiler (1) afterbody exhaust port (23), and leakage fluid dram (24) are connected on exhaust port (23), and boiler (1) outside is equipped with one and disappears bubble tube (18), and defoaming tube (18) are connected to outlet pipe (8).

3. The fan-mounted fully-premixed boiler according to claim 1, wherein: a plurality of partition plates (15) are arranged inside the boiler (1), condensing areas (16) are arranged between the partition plates (15), and a plurality of air holes (17) are formed in the partition plates (15).

4. The fan-mounted fully-premixed boiler according to claim 1, wherein: the air inlet device (10) comprises a gas inlet pipe (19) and an air inlet (20), the gas inlet pipe (19) is connected to the side face of the air inlet (20), and the air blower (11) is connected to the tail portion of the air inlet (20).

5. The fan-mounted fully-premixed boiler according to claim 1, wherein: an annular Venturi valve (22) is arranged in the air outlet device (12).

6. The fan-mounted fully-premixed boiler according to claim 4, wherein: a fuel gas control valve (21) used for regulating and controlling the fuel gas mixing proportion is arranged below the air inlet (20), a baffle (25) is arranged inside the air inlet (20), the baffle (25) is transversely arranged in the middle of the air inlet (20), and a wind shielding cover (26) is further arranged on the air inlet (20).

7. The fan-mounted fully-premixed boiler according to claim 6, wherein: a mixing pipe (27) is arranged between the gas control valve (21) and the gas outlet device (12), and the mixing pipe (27) is communicated with the gas control valve (21) and the gas outlet device (12).

8. A combustion method of a fan-mounted full-premix boiler is characterized in that: the method comprises the following steps: let in air-blower (11) from two air inlets respectively with gas and air, regulate and control gas flow through flow control valve (29), the air passes through baffle (25) and filter screen (28) and screens off impurity, the effect through venturi valve (22) makes gas and air intensive mixing obtain mist, ignite mist in boiler (1), rethread condensing system (3) lets in the comdenstion water from boiler (1) low temperature point to high temperature point, the comdenstion water all fully exerts the condensation effect of this temperature section in every condensation zone (16), discharge boiler (1) after with the flue gas and the liquid classification of production.

9. The combustion method of the fan-mounted full premix boiler according to claim 8, characterized in that: the specific implementation comprises the following steps:

the method comprises the following steps: the air blocking cover (26) is opened, the air blower (11) is started, air enters from the air inlet (20), is guided and primarily filtered by the baffle (25) when passing through the air inlet (20), and finally reaches the air outlet device (12) after being deeply filtered by the filter screen (28) in the air blower (11) when being led into the air blower (11);

step two: introducing gas from a gas inlet pipe (19), adjusting the gas flow through a flow adjusting valve (29) on the gas inlet pipe (19), introducing the gas into a gas control valve (21), mixing the gas with air, and finally reaching the gas outlet device (12) through a mixing pipe (27) for mixing;

step three: the mixed gas formed by air and fuel gas reaches the air outlet device (12), is fully mixed in the air outlet device (12) under the action of the pressure difference of the Venturi valve (22) and then reaches the combustion chamber (14), the mixed gas is ignited in the combustion chamber (14) to be combusted to generate a large amount of heat, the heat is absorbed by the heat conduction layer (13) and is conducted to required equipment and positions, and the flue gas generated by combustion is sequentially discharged to the tail part of the boiler (1) through the air holes (17) in the partition plate (15);

step four: when the flue gas is through a plurality of layers of baffles (15), the inlet pipe (7) lets in the comdenstion water, will arrange to outlet pipe (8) through the comdenstion water of condensation operation, discharge boiler (1) at last, the flue gas after the cooling reaches boiler (1) afterbody, through exhaust port (23) of boiler (1) afterbody, discharges outside boiler (1), produces partly steam simultaneously and collects to leakage fluid dram (24), discharge boiler (1) after the neutralization.

10. The combustion method of the fan-mounted full-premix boiler according to claim 9, characterized in that: the step A is also included between the step three and the step four: the small bubbles generated by combustion are collected in the defoaming pipe (18) and flow into the water outlet pipe (8), and the generated accumulated water is discharged through the water accumulating pipe (6).

Technical Field

The invention relates to the technical field of boilers, in particular to a full-premixing boiler with an upper fan and a working method thereof.

Background

A boiler is an energy conversion apparatus, which has been widely used in industrial production. The boiler heats water by means of heat exchange, so as to provide people with life and production use. In the use process of the boiler, the smoke and dust exhaust channel is generally in a direct exhaust type, so that the heat loss of fuel is large, smoke and dust fly, and the pollution is serious.

Meanwhile, most boilers cannot well mix fuel and oxygen to cause waste materials generated by combustion to be discharged and have overproof toxic and harmful substances, cannot reach the emission standard, and can cause bad influence on human bodies and the environment, so a novel fan-overhead type full-premixing boiler and a working method thereof are provided.

Disclosure of Invention

The invention aims to solve the technical problems and provides a novel fan-mounted full-premix boiler, which is beneficial to improving the combustion efficiency of fuel and reducing the emission of waste substances generated by combustion and has the characteristics of fast working process and small environmental pollution.

The technical scheme adopted by the invention for solving the technical problems is as follows: a novel fan-top-mounted full-premixing boiler comprises a boiler, a fan, a condensing system and a sewage discharge system, wherein the boiler comprises an air inlet and a water accumulating pipe, the water accumulating pipe is connected to the bottom end of the tail part of the boiler, the condensing system comprises an air inlet pipe and an air outlet pipe, one end of the air outlet pipe is connected with the boiler and is close to the air inlet, one end of the air inlet pipe is connected with the boiler and is close to the tail part of the boiler, the air inlet pipe is shorter than the air outlet pipe, a regulating valve is installed on the air outlet pipe, the fan comprises an air inlet device, an air blower and an air outlet device, the air blower is connected with the air outlet device, the air outlet device is connected to the air inlet of the boiler, condensed water is introduced from the tail part of the boiler, firstly, the flue gas with lower temperature is contacted, and then the flue gas with higher temperature is contacted in sequence, the introduced condensed water can achieve a condensing effect on the flue gas with each part temperature, the structure is reasonable, the condensing effect is better, the gas inlet is large, and the gas is fast and uniform when being introduced into the combustion chamber.

Preferably, the boiler comprises a heat conducting layer and a combustion chamber, the heat conducting layer surrounds the outside of the combustion chamber, the sewage discharge system comprises a smoke outlet and a liquid outlet, the smoke outlet is arranged at the tail of the boiler, the liquid outlet is connected to the smoke outlet, a defoaming pipe is arranged outside the boiler and connected to a water outlet pipe, heat generated by combustion in the combustion chamber is efficiently absorbed into the heat conducting layer, and the heat absorbed by the heat conducting layer is transferred to required equipment; the liquid generated by combustion in the combustion chamber is discharged from the liquid discharge port, the liquid contains components harmful to human bodies, and most harmful substances are neutralized by the liquid discharge port, so that the discharged liquid can reach the discharge safety standard degree, and the device is safe and environment-friendly; the smoke outlet collects the smoke generated by combustion and uniformly discharges the smoke from the channel port, and the smoke outlet contains a neutralizing material for reducing the concentration of toxic and harmful substances in the smoke, so that the problem of environmental pollution is greatly reduced; the defoaming pipe collects the small bubbles which are generated in the combustion chamber due to combustion and condensation reaction and adsorbed on the inner wall of the boiler and flows into the water outlet pipe, so that the condition that the heat collection is not uniform and insufficient due to the existence of the small bubbles is prevented.

As the preferred, the inside a plurality of baffles that are equipped with of boiler all are equipped with the condensation zone between the baffle, are equipped with a plurality of bleeder vents on the baffle, and the flue gas that the condensation zone will burn and produce cools off, and the baffle has set up more bleeder vents and has made things convenient for the flue gas more smoothly to pass through.

Preferably, the air inlet device comprises a fuel gas inlet pipe and an air inlet, the fuel gas inlet pipe is connected to the side face of the air inlet, and the blower is connected to the tail portion of the air inlet.

Preferably, an annular venturi valve is arranged inside the air outlet device, and the pressure difference formed by the venturi valve is beneficial to fully mixing air and fuel gas.

Preferably, a gas control valve for regulating the gas mixing proportion is arranged below the air inlet, a baffle is arranged inside the air inlet and transversely arranged in the middle of the air inlet, a wind shield cover is further arranged on the air inlet, the baffle and the dust shield can prevent dust particles from entering the air inlet, and the air inlet direction can be adjusted by the baffle.

Preferably, a mixing pipe is arranged between the gas control valve and the gas outlet device, and the mixing pipe is communicated with the gas control valve and the gas outlet device.

A combustion method of a fan-mounted full-premix boiler is characterized in that: the method comprises the following steps: let in the air-blower from two air inlets respectively with gas and air, regulate and control the gas flow through flow control valve, the air passes through baffle and filter screen and screens off impurity, effect through venturi valve makes gas and air intensive mixing obtain the mist, the mist is lighted in the boiler, rethread cooling system lets in the comdenstion water from boiler low temperature point to high temperature point, the comdenstion water is at the condensation effect of this temperature section of every condensation zone full play, discharge the boiler behind flue gas and the liquid classification that will produce.

Preferably, the specific implementation comprises the following steps:

the method comprises the following steps: the air inlet is provided with a baffle plate, and the air inlet is communicated with the air blower;

step two: introducing gas from a gas inlet pipe, adjusting the gas flow through a flow adjusting valve on the gas inlet pipe, introducing the gas into a gas control valve, mixing the gas with air, and finally delivering the gas into a gas outlet device through a mixing pipe for mixing;

step three: the mixed gas formed by air and fuel gas reaches the air outlet device, is fully mixed in the air outlet device under the action of the pressure difference of the Venturi valve and then reaches the combustion chamber, the mixed gas is ignited in the combustion chamber to be combusted to generate a large amount of heat, the heat is absorbed by the heat conduction layer and is conducted to required equipment and positions, and the flue gas generated by combustion is sequentially discharged to the tail part of the boiler through the air holes in the partition plate;

step four: when the flue gas is through a plurality of layers of baffles, the inlet pipe is introduced with condensed water, the condensed water subjected to condensation operation is discharged to the outlet pipe, and finally discharged out of the boiler, the cooled flue gas reaches the tail part of the boiler and is discharged out of the boiler through the smoke outlet at the tail part of the boiler, and a part of water vapor is generated simultaneously and collected to the liquid outlet and is discharged out of the boiler after neutralization.

Preferably, the method further comprises the step A between the third step and the fourth step: the small bubbles generated by combustion are collected in the defoaming pipe and flow into the water outlet pipe, and the generated accumulated water is discharged through the water accumulating pipe, so that the influence of the small bubbles on the heat efficiency is prevented.

The invention has the beneficial effects that:

1. the invention realizes the purposes of proportionally mixing and burning gas and air and fully absorbing heat, quickly cools the generated flue gas, fully neutralizes the flue gas and then discharges the flue gas to the environment, and solves the problems of slow working process, large environmental pollution and personal health damage;

2. the liquid outlet and the smoke outlet are converged and neutralized by the invention to discharge most harmful substances uniformly, so that the discharged waste can reach the discharge safety standard degree, and the invention is safe and environment-friendly; the smoke outlet collects the smoke generated by combustion, so that the problem of environmental pollution is greatly reduced;

3. the small bubbles adsorbed on the inner wall of the boiler, which are generated by combustion and condensation reactions in the combustion chamber, are collected to the defoaming pipe and flow into the water outlet pipe, so that the condition of uneven and insufficient heat collection caused by the existence of the small bubbles is prevented;

4. the invention has the characteristics of fast working process and little environmental pollution, and can prevent dust particles from entering the air inlet.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of a depression structure of the present invention.

Fig. 3 is a schematic view of the condensing system and the blowdown system of the present invention.

FIG. 4 is a schematic view of a partial structure of the boiler of the present invention.

In the figure: 1. boiler, 2, fan, 3, condensing system, 4, sewage system, 5, air inlet, 6, water accumulating pipe, 7, water inlet pipe, 8, water outlet pipe, 9, regulating valve, 10, air inlet device, 11, air blower, 12, air outlet device, 13, heat conducting layer, 14, combustion chamber, 15, partition board, 16, condensing area, 17, air vent, 18, defoaming pipe, 19, gas inlet pipe, 20, air inlet, 21, gas control valve, 22, venturi valve, 23, smoke outlet, 24, liquid outlet, 25, baffle, 26, wind shielding cover, 27, mixing pipe, 28, filter screen, 29, flow regulating valve

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

As shown in figures 1-4, the invention relates to a novel fan-mounted fully-premixed boiler, which comprises a boiler 1, a fan 2, a condensing system 3 and a sewage system 4, wherein the boiler 1 comprises an air inlet 5 and a water accumulating pipe 6, the water accumulating pipe 6 is connected to the bottom end of the tail part of the boiler 1, the condensing system 3 comprises an air inlet pipe 7 and a water outlet pipe 8, one end of the water outlet pipe 8 is connected with the boiler 1 and is close to the air inlet 5, one end of the water inlet pipe 7 is connected with the boiler 1 and is close to the tail part of the boiler 1, the water inlet pipe 7 is shorter than the water outlet pipe 8, an adjusting valve 9 is arranged on the water outlet pipe 8, the fan 2 comprises an air inlet device 10, an air blower 11 and an air outlet device 12, the air inlet device 10 is connected with the air blower 11, the air blower 11 is communicated with the air outlet device 12, the air outlet device 12 is connected with the air inlet 5 of the boiler 1, the water inlet pipe 7 is introduced with condensed water from the tail part of the boiler 1, firstly contacts with lower-temperature flue gas, and then sequentially contacts with higher-temperature flue gas, the condensation water energy that makes to let in all plays the condensation effect to the flue gas of each part temperature, and is rational in infrastructure, and the condensation effect is better, and it is big to go into gas port 5, and is quick, even when the gas lets in the combustion chamber.

The boiler 1 comprises a heat conducting layer 13 and a combustion chamber 14, the heat conducting layer 13 surrounds the outside of the combustion chamber 14, the sewage discharge system 4 comprises a smoke exhaust port 23 and a liquid discharge port 24, the smoke exhaust port 23 is arranged at the tail of the boiler 1, the liquid discharge port 24 is connected to the smoke exhaust port 23, a defoaming pipe 18 is arranged outside the boiler 1, the defoaming pipe 18 is connected to a water outlet pipe 8, heat generated by combustion of the combustion chamber 14 is efficiently absorbed into the heat conducting layer 13, and the heat absorbed by the heat conducting layer 13 is transferred to required equipment; the liquid discharge port 24 discharges liquid generated by combustion in the combustion chamber 14, the liquid contains components harmful to human bodies, and the liquid discharge port 24 neutralizes most harmful substances, so that the discharged liquid can reach the discharge safety standard degree, and is safe and environment-friendly; the smoke outlet 23 collects smoke generated by combustion and uniformly discharges the smoke from the channel port, and the smoke outlet 23 contains a neutralizing material for reducing the concentration of toxic and harmful substances in the smoke, so that the problem of environmental pollution is greatly reduced; the defoaming pipe 18 collects the small bubbles adsorbed on the inner wall of the boiler 1 generated by combustion and condensation reaction in the combustion chamber and flows into the water outlet pipe 8, so that the condition of uneven and insufficient heat collection caused by the existence of the small bubbles is prevented.

Boiler 1 is inside to be equipped with a plurality of baffles 15, all is equipped with condensation zone 16 between the baffle 15, is equipped with a plurality of bleeder vents 17 on the baffle 15, and the flue gas that the condensation zone 16 produced will burn cools off, and baffle 15 has set up more bleeder vents 17 and has made things convenient for the flue gas more smoothly to pass through.

The air inlet device 10 comprises a gas inlet pipe 19 and an air inlet 20, wherein the gas inlet pipe 19 is connected to the side surface of the air inlet 20, and the blower 11 is connected to the tail part of the air inlet 20.

An annular venturi valve 22 is arranged inside the air outlet device 12, and the pressure difference formed by the venturi valve 22 is beneficial to fully mixing air and fuel gas.

The gas control valve 21 for regulating the gas mixing proportion is arranged below the air inlet 20, the baffle 25 is arranged inside the air inlet 20, the baffle 25 is transversely arranged in the middle of the air inlet 20, the air inlet 20 is further provided with the wind shield cover 26, the baffle 25 and the dust shield cover 26 can prevent dust particles from entering the air inlet 20, and the air inlet direction can be adjusted by the baffle 25.

A mixing pipe 27 is provided between the gas control valve 21 and the gas outlet 12, and the mixing pipe 27 communicates the gas control valve 21 and the gas outlet 12.

A combustion method of a fan-mounted full-premix boiler is characterized in that: the method comprises the following steps: gas and air are respectively introduced into the air blower 11 from the two gas inlets, the gas flow is regulated and controlled through the flow regulating valve 29, impurities are removed through the baffle plate 25 and the filter screen 28 by the air, the gas and the air are fully mixed through the effect of the Venturi valve 22 to obtain mixed gas, the mixed gas is ignited in the boiler 1, condensed water is introduced from the low temperature point to the high temperature point of the boiler 1 through the condensing system 3, the condensing effect of the temperature section is fully exerted by the condensed water in each condensing area 16, and the generated flue gas and the generated liquid are discharged out of the boiler 1 after being classified.

The specific implementation comprises the following steps:

the method comprises the following steps: the wind shield cover 26 is opened, the blower 11 is started, air enters from the air inlet 20, is guided and primarily filtered by the baffle 25 when passing through the air inlet 20, is deeply filtered by the filter screen 28 in the blower 11 when passing through the blower 11, and finally reaches the air outlet device 12;

step two: introducing gas from a gas inlet pipe 19, adjusting the gas flow through a flow adjusting valve 29 on the gas inlet pipe 19, introducing the gas into a gas control valve 21, mixing the gas with air, and finally delivering the gas into the gas outlet device 12 through a blending pipe 27 for blending;

step three: air and fuel gas reach the air outlet device 12, are fully mixed in the air outlet device 12 through the pressure difference action of the Venturi valve 22, then reach the combustion chamber 14, ignite the mixed gas in the combustion chamber 14 to enable the mixed gas to be combusted to generate a large amount of heat, the heat is absorbed by the heat conduction layer 13 and is conducted to required equipment and positions, and the flue gas generated by combustion is sequentially discharged to the tail part of the boiler 1 through the air holes 17 on the partition plate 15;

step four: when the flue gas is through a plurality of layers of baffles 15, the inlet pipe 7 is introduced with the condensed water, the condensed water subjected to condensation operation is discharged to the water outlet pipe 8, the flue gas is discharged out of the boiler 1 at last, the cooled flue gas reaches the tail part of the boiler 1, and is discharged out of the boiler 1 through the smoke outlet 23 at the tail part of the boiler 1, and a part of water vapor is generated at the same time and is collected to the liquid discharge port 24 to be discharged out of the boiler 1 after neutralization.

The step A is also included between the step three and the step four: the small bubbles generated by combustion are collected in the defoaming pipe 18 and flow into the water outlet pipe 8, and the generated accumulated water is discharged through the water accumulating pipe 6, so that the influence of the small bubbles on the heat efficiency is prevented.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.