CN212339619U

CN212339619U - Low-nitrogen combustion device of gas boiler

Info

Publication number: CN212339619U
Application number: CN202020697727.0U
Authority: CN
Inventors: 应春辉; 马俊; 戚云辉; 毛佳杰; 芮赟耀
Original assignee: Zhejiang Xingxing New Energy Technology Co ltd
Current assignee: Zhejiang Xingxing New Energy Technology Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-01-12
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a low-nitrogen combustion device of a gas boiler, belonging to the technical field of boiler combustion equipment, comprising a supporting base, wherein the lower surface of the supporting base is provided with a control panel, the upper end of the supporting base is fixedly connected with a carrying plate, the upper surface of the carrying plate is provided with a combustion box, the combustion box is internally provided with a water storage pipe, the left side of the water storage pipe is fixedly connected with a water inlet pipe, the lower surface of the water storage pipe is fixedly connected with a water outlet pipe, the middle part of the water storage pipe is embedded and connected with a low-nitrogen burner, the tail end of the low-nitrogen burner is fixedly connected with a gas pipe, a fan and a smoke return pipe, the utility model provides a low-nitrogen combustion device of a gas boiler, which can know the internal temperature at any time, control the internal temperature, purify the harmful smoke generated by combustion, prevent, can continuously provide hot water for people, and is convenient for the life of people.

Description

Low-nitrogen combustion device of gas boiler

Technical Field

The utility model relates to a boiler combustion equipment technical field especially relates to a gas boiler low-nitrogen combustion device.

Background

With the progress of social science and technology, the enhancement of people's environmental awareness and the gradual increase of social environmental control, the emission limit value of the atmospheric pollutants in China is becoming stricter, the regulation that the NOx emission limit value of a boiler is within 80-200mg/Nm3 is being executed in many areas at present, low-nitrogen combustion modification is encouraged to be carried out on the existing boiler, the NOx emission value is reduced to 60mg/Nm3, and the environmental standard that the NOx emission concentration requirement is 30mg/Nm3 is specially established for newly built boilers in Beijing areas. The low-nitrogen combustion modification task of the current natural gas boiler is to reduce the NOx emission value to 60mg/Nm3, and is generally realized by replacing a low-nitrogen combustor and assisting a flue gas external circulation low-nitrogen combustion technology. In theory, it is possible, but in practice, it is found that the modification work is more, the investment is more, and the problems of condensed water and reduced boiler efficiency exist due to the need of adding an external circulation facility. In recent two years, novel independent low-nitrogen combustors which can basically meet the low-nitrogen combustion transformation and use requirements of natural gas boilers and can be used without using a flue gas external circulation low-nitrogen combustion technology are provided.

Patent No. 201720465987.3 discloses a flue gas recirculation type low-nitrogen boiler, wherein a combustion chamber is arranged in a boiler body, a burner is connected to the combustion chamber, a plurality of flue tubes are arranged in the boiler body, water cavities are reserved on the periphery of the combustion chamber and the periphery of the flue tubes in the boiler body, a flue is connected to the upper side of the flue tube, the combustion chamber is horizontally arranged, the burner is connected to one end of the combustion chamber, a recombustion chamber is arranged at the other end of the combustion chamber, the plurality of flue tubes are arranged on the periphery of the combustion chamber, one ends of the flue tubes are connected to the recombustion chamber, and the other ends of the flue tubes are connected to the flue tube; the upper part of the furnace body is also provided with a fan, the inlet of the fan is provided with two paths, one path is communicated with the atmosphere, the other path is communicated with the flue through a smoke and air pipe, and the outlet of the fan is connected to the burner through a hot air pipeline. The utility model discloses a flue gas recirculation finally can reduce NOX and discharge, reduces the exhaust gas temperature of boiler, and the increasing heat efficiency finally realizes environmental protection and energy-conservation.

The low-nitrogen boiler of the above technology has the following disadvantages: 1. the device is not provided with a purifying device, a large amount of harmful flue gas can be generated by combustion of gas, and environmental pollution can be caused by the fact that the gas cannot be effectively treated; 2. the device does not have a temperature detection device, can not detect the temperature inside, can not the temperature simultaneously, and the high temperature probably causes equipment to damage, probably causes personnel's injury simultaneously, for this reason, we provide a gas boiler low nitrogen burner.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gas boiler low-nitrogen combustion device can know inside temperature at any time, controls inside temperature, reduces the risk, can prevent to cause environmental pollution with the harmful gas cleaning that the burning produced simultaneously, effectively protects ecological environment, reduces the emission of nitrogen, can constantly provide hot water for people, makes things convenient for people's life.

The utility model provides a specific technical scheme as follows:

the utility model provides a pair of gas boiler low-nitrogen combustion apparatus, the on-line screen storage device comprises a supporting pedestal and is characterized by further comprising, support surface mounting has control panel under the base, support base upper end fixedly connected with and carry the thing board, it has the burning case to carry thing board upper surface to place, burning incasement internally mounted has the standpipe, standpipe left side fixedly connected with inlet tube, surface fixedly connected with outlet pipe under the standpipe, the standpipe middle part is inlayed and is connected with the low-nitrogen combustor, the terminal fixedly connected with gas pipe of low-nitrogen combustor, fan and smoke-back pipe, burning case top can be dismantled and be connected with the purifying box, the purifying box upper end is inlayed and is connected with out the tobacco pipe, go out tobacco pipe front end and smoke-back pipe fixed connection, the burning case right side is inlayed.

Optionally, the case lid is installed at the purifying box top, the case lid right side is inlayed and is connected with the gas outlet, water solution has been placed to purifying box internally mounted active carbon adsorption net and bottom, the terminal fixedly connected with air duct of play tobacco pipe, the gas outlet head has been seted up to the air duct lower surface, the gas outlet head is located inside the water solution.

Optionally, the control panel surface is provided with a plurality of display panels and control buttons, and the display panels are located on the left sides of the control buttons.

Optionally, the inlet tube, the outlet pipe and the gas pipe are internally provided with valves, and the fan and the low-nitrogen combustion box are electrically connected with the control panel through wires.

The utility model has the advantages as follows:

the embodiment of the utility model provides a gas boiler low nitrogen burner:

1. the low-nitrogen combustor burns and can produce the flue gas, a part of flue gas can get back to the low-nitrogen combustor through the smoke return pipe and is back-burnt, so that the flue gas can be circularly burnt, the emission of nitrides is reduced, a part of flue gas enters the purifying box through the smoke outlet pipe, the box cover at the top of the purifying box is opened, the aqueous solution is put into the purifying box, the tail end of the smoke outlet pipe is connected with the air guide pipe, meanwhile, the air guide pipe is immersed in the aqueous solution, the lower surface of the air guide pipe is provided with the air outlet head, the flue gas enters the aqueous solution through the air outlet head, the nitrides in the flue gas can react with the aqueous solution, the emission of the nitrides is further reduced, meanwhile, the upper end of the aqueous solution is provided with the activated carbon adsorption net, the flue gas which is purified once can pass through the activated carbon filter net at the upper end of the purifying box, the activated carbon filter net can filter, can not cause environmental pollution and protect the ecological environment.

2. The bottom end of the low-nitrogen combustor is connected with a fan, a gas pipe and a smoke returning pipe, the power input end of the fan is connected with the power output end of a control panel on a base, the power is switched on through a control button on the control panel, the fan blows air into the low-nitrogen combustor when working, meanwhile, a valve inside the gas pipe is opened, gas enters the low-nitrogen combustor and is mixed with the air to provide raw materials for the low-nitrogen combustor, the low-nitrogen combustor burns to heat a water storage pipe inside a combustion box, the front end of the water storage pipe is connected with a water inlet pipe, a valve water source inside the water storage pipe is opened to enter the water storage pipe, the bottom of the water storage pipe is connected with a water outlet pipe, heated water flows out through the water outlet valve to be used by people, so that people can use hot water at any time, meanwhile, the upper end on the right, temperature sensor's signal output part is connected with display panel's on the control panel signal input part, temperature sensor transmits temperature information to display panel on, display panel shows temperature and makes the staff know inside temperature, the speed of blowing through the last control button control fan of control panel, the speed that how much adjusted the combustor of control entering air, can control inside temperature, prevent that the high temperature from causing equipment to damage, improve device's life.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a low-nitrogen combustion device of a gas boiler according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a purification box of a low-nitrogen combustion device of a gas boiler according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a control panel of a low-nitrogen combustion device of a gas boiler according to an embodiment of the present invention;

in the figure: 1. a support base; 2. a loading plate; 3. a control panel; 4. a combustion box; 5. a water inlet pipe; 6. A water storage pipe; 7. a smoke returning pipe; 8. a water outlet pipe; 9. a low-nitrogen burner; 10. a fan; 11. a gas pipe; 12. A temperature sensor; 13. discharging the smoke tube; 14. a purification box; 15. an air outlet; 16. a box cover; 17. an active carbon filter screen; 18. an air duct; 19. an air outlet head; 20. a display panel; 21. and a control button.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, 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 efforts belong to the protection scope of the present invention.

A low-nitrogen combustion apparatus for a gas boiler according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 3.

Referring to fig. 1 to 3, a low-nitrogen combustion device for a gas boiler according to an embodiment of the present invention includes a support base 1, a control panel 3 is arranged on the lower surface of the supporting base 1, a loading plate 2 is fixedly connected with the upper end of the supporting base 1, a combustion box 4 is arranged on the upper surface of the object carrying plate 2, a water storage pipe 6 is arranged in the combustion box 4, a water inlet pipe 5 is fixedly connected on the left side of the water storage pipe 6, a water outlet pipe 8 is fixedly connected on the lower surface of the water storage pipe 6, the middle part of the water storage pipe 6 is embedded and connected with a low-nitrogen burner 9, the tail end of the low-nitrogen burner 9 is fixedly connected with a gas pipe 11, a fan 10 and a smoke returning pipe 7, the top end of the combustion box 4 is detachably connected with a purification box 14, the upper end of the purification box 14 is embedded and connected with a smoke outlet pipe 13, the front end of the smoke outlet pipe 13 is fixedly connected with the smoke return pipe 7, and the right side of the combustion box 4 is connected with a temperature sensor 12 in an embedded mode.

The example, temperature sensor 12 detects inside temperature, transmits temperature information to display panel 20 on, makes people know inside temperature at any time, controls inside temperature, reduces the risk, and purifying box 14 can prevent to cause environmental pollution with the harmful gas cleaning that the burning produced simultaneously, effectively protects the ecological environment, reduces the emission of nitrogen, can provide hot water for people's life constantly, makes things convenient for people.

Referring to fig. 2, a case cover 16 is installed at the top of the purifying case 14, an air outlet 15 is connected to the right side of the case cover 16 in an embedded manner, an activated carbon adsorption net 17 is installed inside the purifying case 14, water solution is placed at the bottom of the purifying case, an air guide tube 18 is fixedly connected to the tail end of the smoke outlet tube 13, an air outlet head 19 is arranged on the lower surface of the air guide tube 18, and the air outlet head 19 is located inside the water solution.

The example, the air duct 18 is submerged inside the aqueous solution simultaneously, the flue gas will get into in the aqueous solution through going out gas head 19, nitride in the flue gas can react with the aqueous solution, further reduce the emission of nitride, the flue gas that purifies once can pass through activated carbon filter screen 17 of purifying box 14 upper end, activated carbon filter screen 17 can filter the flue gas, adsorb the harmful substance in the flue gas, make the flue gas reach national emission standard, the flue gas that reaches emission standard can discharge out through outlet duct 15 of purifying box 14 right side upper end, can not cause environmental pollution, protect ecological environment.

Referring to fig. 3, the control panel 3 is surface-mounted with a display panel 20 and a plurality of control buttons 21, and the display panel 20 is located at the left side of the control buttons 21.

In the example, the display panel 20 displays the temperature to enable the staff to know the internal temperature, the control button 21 on the control panel 3 controls the blowing speed of the fan 10, controls the amount of air entering to adjust the speed of the burner, can control the internal temperature, prevents the equipment from being damaged due to overhigh temperature, and prolongs the service life of the device.

Referring to fig. 1, valves are arranged inside the water inlet pipe 5, the water outlet pipe 8 and the fuel gas pipe 11, and the fan 10 and the low-nitrogen combustion box 4 are electrically connected with the control panel 3 through leads.

In the example, the opening and closing of the water inlet pipe, the water storage pipe and the gas pipe can be controlled by opening each valve, the conducting speed is high by connecting the valves through the conducting wires, meanwhile, the service life is long, and the cost is saved.

When in use, the bottom end of the low-nitrogen combustor 9 is connected with a fan 10, a gas pipe 11 and a smoke-returning pipe 5, the power input end of the fan 10 is connected with the power output end of a control panel 3 on a base, a power supply is switched on through a control button 21 on the control panel 3, the fan 10 blows air into the low-nitrogen combustor 9 when working, a valve inside the gas pipe 11 is opened simultaneously, gas enters the low-nitrogen combustor 9 and is mixed with the air to provide raw materials for the low-nitrogen combustor 9, the low-nitrogen combustor 9 burns to heat a water storage pipe 6 inside a combustion box 4, the front end of the water storage pipe 6 is connected with a water inlet pipe 5, a valve water source inside the water storage pipe 6 is opened to enter the water storage pipe 6, the bottom of the water storage pipe 6 is connected with a water outlet 8, hot water can flow out through the water outlet pipe 8 to be used by people, so that the people can use the hot, part of the flue gas will return to the low-nitrogen combustor 9 through the smoke return pipe 7 for back combustion, so that the flue gas can be circularly combusted, the emission of nitrides is reduced, meanwhile, part of the flue gas enters the purifying box 14 through the smoke outlet pipe 13, the box cover 16 at the top of the purifying box 14 is opened, aqueous solution is put into the purifying box, the tail end of the smoke outlet pipe 13 is connected with the air guide pipe 18, meanwhile, the air guide pipe 18 is immersed in the aqueous solution, the lower surface of the air guide pipe 18 is provided with the air outlet head 19, the flue gas enters the aqueous solution through the air outlet head 19, the nitrides in the flue gas can react with the aqueous solution, the emission of the nitrides is further reduced, meanwhile, the upper end of the aqueous solution is provided with the activated carbon adsorption net 17, the flue gas which is purified once passes through the activated carbon filter net 17 at the upper end of the purifying box 14, the activated carbon filter net 17 can filter the flue gas, harmful substances in the, can not cause environmental pollution, protect ecological environment, 4 right sides upper ends of burning box are inlayed simultaneously and are had temperature sensor 12, temperature sensor 12 can monitor the inside temperature of burning box 4, temperature sensor 12's signal output part and the display panel 20's on the control panel 3 signal input part are connected, temperature sensor 12 is on temperature information transmits display panel 20, display panel 20 shows temperature display makes the staff can know inside temperature, the speed of blowing through control button 21 control fan 10 on the control panel 3, the speed that how much adjusted the combustor of control entering air, can control inside temperature, prevent that the high temperature from causing equipment to damage, improve the life of device.

The utility model relates to a low-nitrogen combustion device of a gas boiler, which comprises a support base 1; 2. a loading plate; 3. a control panel; 4. a combustion box; 5. a water inlet pipe; 6. a water storage pipe; 7. a smoke returning pipe; 8. a water outlet pipe; 9. a low-nitrogen burner; 10. a fan; 11. a gas pipe; 12. a temperature sensor; 13. discharging the smoke tube; 14. a purification box; 15. an air outlet; 16. a box cover; 17. an active carbon filter screen; 18. an air duct; 19. an air outlet head; 20. a display panel; 21. the control button, the specific model of the control panel is XB2BA31C, the specific model of the fan is XFC, the specific model of the temperature sensor is SIN-WZP-PT100, the specific model of the display panel is K22G20, and the specific model of the low-nitrogen burner is RS34 parts, which are all universal standard parts or parts known by technicians in the field, and the structure and the principle of the control button are known by technicians in technical manuals or conventional experimental methods.

It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The low-nitrogen combustion device of the gas boiler comprises a supporting base (1) and is characterized in that a control panel (3) is installed on the lower surface of the supporting base (1), a loading plate (2) is fixedly connected to the upper end of the supporting base (1), a combustion box (4) is placed on the upper surface of the loading plate (2), a water storage pipe (6) is installed inside the combustion box (4), a water inlet pipe (5) is fixedly connected to the left side of the water storage pipe (6), a water outlet pipe (8) is fixedly connected to the lower surface of the water storage pipe (6), a low-nitrogen combustor (9) is connected to the middle of the water storage pipe (6) in an embedded mode, a gas pipe (11), a fan (10) and a smoke return pipe (7) are fixedly connected to the tail end of the low-nitrogen combustor (9), a purifying box (14) is detachably connected to the top end of the combustion box (4), a, the front end of the smoke outlet pipe (13) is fixedly connected with the smoke return pipe (7), and the right side of the combustion box (4) is embedded and connected with a temperature sensor (12).

2. The low-nitrogen combustion device of the gas boiler according to claim 1, wherein a box cover (16) is installed at the top of the purifying box (14), an air outlet (15) is connected to the right side of the box cover (16) in an embedded manner, an activated carbon adsorption net (17) is installed inside the purifying box (14), water solution is placed at the bottom of the purifying box, an air guide pipe (18) is fixedly connected to the tail end of the air outlet pipe (13), an air outlet head (19) is arranged on the lower surface of the air guide pipe (18), and the air outlet head (19) is located inside the water solution.

3. The low-nitrogen combustion device of the gas boiler according to claim 1, wherein the control panel (3) is surface-mounted with a display panel (20) and a plurality of control buttons (21), and the display panel (20) is located at the left side of the control buttons (21).

4. The low-nitrogen combustion device of the gas boiler according to claim 1, wherein valves are arranged in the water inlet pipe (5), the water outlet pipe (8) and the gas pipe (11), and the fan (10) and the low-nitrogen combustion box (4) are electrically connected with the control panel (3) through wires.