CN215176035U

CN215176035U - Ultralow nitrogen condensation normal pressure hot water boiler

Info

Publication number: CN215176035U
Application number: CN202121331342.3U
Authority: CN
Inventors: 徐陈才; 陈清宝
Original assignee: Shanghai Siweier Energy Equipment Co ltd
Current assignee: Shanghai Siweier Energy Equipment Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-14
Anticipated expiration: 2031-06-15

Abstract

The utility model discloses an ultra-low nitrogen condensation normal pressure hot water boiler, which comprises a boiler body, wherein a heat conducting plate is arranged in the boiler body, the boiler body positioned below the heat conducting plate is a combustion chamber, the boiler body positioned above the heat conducting plate is a heating chamber, a burner is arranged on the side wall of the boiler body corresponding to the combustion chamber, and a flue is arranged on the heat conducting plate; the top end of the first smoke conveying pipe is connected with a three-way pipe, one end of the three-way pipe is connected with an oxygen supply pipe, the other end of the three-way pipe is provided with a smoke inlet pipe, the smoke inlet pipe is communicated with an alkalization box, the alkalization box is connected with a water tank through a second smoke conveying pipe, liquid replenishing pipes are arranged on the top of the water tank and the alkalization box, a third smoke conveying pipe is arranged on the side wall close to the top of the water tank, and an adsorption box is arranged on the third smoke conveying pipe. This ultralow nitrogen condensation ordinary pressure hot water boiler can effectively guarantee condensation ordinary pressure hot water boiler's ultralow nitrogen emission standard, optimizes the production link of enterprise, reduces the nitride and discharges atmospheric pollution, and the environmental protection increases ultralow nitrogen treatment facility's practicality.

Description

Ultralow nitrogen condensation normal pressure hot water boiler

Technical Field

The utility model relates to a condensation ordinary pressure hot water boiler technical field specifically is an ultralow nitrogen condensation ordinary pressure hot water boiler.

Background

The normal pressure hot water boiler is a non-pressure type hot water heating boiler as the name implies, is often used for the boiler category of civilian life, and normal pressure hot water boiler top is equipped with the blow vent for the inside normal pressure state that is in all the time of boiler moves, does not have the potential safety hazard that the boiler explodes and splits, by fields such as wide application civil heating and production hot water, normal pressure hot water boiler can divide into normal pressure electric hot water boiler, normal pressure gas-fired hot water boiler, normal pressure fuel oil hot water boiler and normal pressure coal-fired hot water boiler according to the burning raw materials.

With the continuous progress of production technology, the traditional condensing normal-pressure hot water boiler cannot meet the requirement of environmental emission, and NOX emission of the traditional condensing normal-pressure hot water boiler is 120-150 mg/m³About, far more than the required not more than 50mg/m in some areas³The emission regulation, directly discharge in the atmosphere, cause the atmosphere pollution, therefore people have designed ultralow nitrogen condensation ordinary pressure hot water boiler, through the inside nitric oxide production nitrogen dioxide of oxygen oxidation flue gas, the redissolution aquatic becomes nitric acid, absorbs the inside nitride of flue gas, however, the process of oxygen oxidation nitric oxide is an exothermic reaction, and flue gas temperature is too high, leads to oxidation nitric oxide inefficiency easily, reduces flue gas nitride treatment effeciency, causes ultralow nitrogen to handle to become invalid, reduces ultralow nitrogen treatment facility's practicality. Therefore, we propose an ultra-low nitrogen condensing atmospheric hot water boiler.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultralow nitrogen condensation ordinary pressure boiler to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the ultralow nitrogen condensation normal-pressure hot water boiler comprises a boiler body, wherein a heat-conducting plate is arranged inside the boiler body, the boiler body positioned below the heat-conducting plate is a combustion chamber, the boiler body positioned above the heat-conducting plate is a heating chamber, a burner is arranged on the side wall of the boiler body corresponding to the combustion chamber, the burner is communicated with the inside of the combustion chamber, a flue is arranged on the heat-conducting plate and is arranged inside the heating chamber, the two ends of the flue penetrate through the heat-conducting plate and the boiler body, the end of the flue positioned outside the boiler body is connected with a fan, a first smoke output pipe is arranged at the air outlet end of the fan, and a cooling box is arranged on the first smoke output pipe;

the top end of the first smoke conveying pipe is connected with a three-way pipe, one end of the three-way pipe is connected with an oxygen supply pipe, the other end of the three-way pipe is provided with a smoke inlet pipe, the smoke inlet pipe is communicated with an alkalization box, the alkalization box is arranged at the top of the furnace body, the alkalization box is connected with a water tank through a second smoke conveying pipe, liquid replenishing pipes are arranged at the tops of the water tank and the alkalization box, a third smoke conveying pipe is arranged on the side wall of the top of the water tank, an adsorption box is arranged on the third smoke conveying pipe, and a discharge pipe is connected to the side wall of the adsorption box.

Preferably, the adsorption box is provided with a support rod through a hoop, and the bottom of the support rod is fixed at the top of the furnace body.

Preferably, a water inlet pipe is arranged on the side wall of the furnace body close to one side of the cooling box, the water inlet pipe penetrates through the cooling box, and a water outlet pipe is arranged on the side wall of the furnace body far away from one side of the water inlet pipe.

Preferably, the joints among the alkalization box, the water tank and the furnace body are all provided with heat insulation pads.

Preferably, the first smoke conveying pipe and the smoke inlet pipe are both provided with one-way valves.

Preferably, two bases are arranged on two sides of the bottom of the furnace body.

Compared with the prior art, the beneficial effects of the utility model are that: according to the ultralow nitrogen condensation normal-pressure hot water boiler, the cooling box is arranged, so that the flue gas can be rapidly cooled by cooling water in the cooling box, the reaction speed of nitric oxide and oxygen in the flue gas is increased, and the effect of ensuring the nitride oxidation-reduction efficiency in the flue gas is achieved; through setting up the alkalization case, the water tank, adsorb the box, can be through the inside sulphide of alkalization case alkalization flue gas, nitride etc., combine the inside water absorption alkalization back nitride of water tank, recycle the inside poisonous and harmful gas of adsorbent absorption flue gas of adsorption box, reach the inside nitride of multiprocessing flue gas, guarantee the effect of flue gas emission standard, make this ultralow nitrogen condensation ordinary pressure hot water boiler, the structure is clear, the cost of manufacture is not high in earlier stage, can effectively guarantee condensation ordinary pressure hot water boiler's ultralow nitrogen emission standard, optimize the production link of enterprise, reduce the nitride and discharge atmospheric pollution, the environmental protection, increase the ultralow nitrogen treatment facility's practicality.

Drawings

FIG. 1 is a sectional view of the ultra-low nitrogen condensing atmospheric pressure hot water boiler according to the present invention;

fig. 2 is the utility model provides an ultra-low nitrogen condensation ordinary pressure hot water boiler alkalization case structure's stereogram.

In the figure: the device comprises a furnace body 1, a heat conducting plate 2, a combustion chamber 3, a heating chamber 4, a combustor 5, a flue outlet 6, a fan 7, a first smoke conveying pipe 8, a cooling box 9, a three-way pipe 10, an oxygen supply pipe 11, a smoke inlet pipe 12, an alkalization box 13, a liquid supplementing pipe 14, a second smoke conveying pipe 15, a water tank 16, a third smoke conveying pipe 17, an adsorption box 18, a discharge pipe 19, a support rod 20, a water inlet pipe 21, a water outlet pipe 22, a heat insulation pad 23, a one-way valve 24 and a base 25.

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.

Referring to fig. 1-2, the present invention provides a technical solution: an ultralow nitrogen condensation normal pressure hot water boiler comprises a boiler body 1, a heat conducting plate 2 is arranged in the boiler body 1, the heat conducting plate 2 is fixed in the boiler body 1 in a welding mode, the heat conducting plate 2 can bear the weight of water in a heating cavity 4 stably, the boiler body 1 positioned below the heat conducting plate 2 is a combustion cavity 3, the combustion cavity 3 is convenient for fuel such as fuel gas to generate heat in the internal combustion, the heat is supplied for the heating cavity 4, the boiler body 1 positioned above the heat conducting plate 2 is the heating cavity 4, the water to be heated is injected in the heating cavity 4 and is attached to the combustion cavity 3, the heat generated by the combustion cavity 3 is convenient to transfer into the heating cavity 4, the water to be heated is heated, a burner 5 is arranged on the side wall of the boiler body 1 corresponding to the combustion cavity 3 and communicated with the combustion cavity 3, the burner 5 is a staged ignition burner and can fully combust the fuel, fundamentally reduces the nitride production, be equipped with out flue 6 on the heat-conducting plate 2, it sets up in heating chamber 4 to go out flue 6, and the both ends of going out flue 6 all run through heat-conducting plate 2 and furnace body 1 setting, can carry out the drainage through going out flue 6 and get into heating chamber 4 inside the flue gas that the burning produced in the burning chamber 3 inside, the flue gas that goes out flue 6 inside carries a large amount of heat, receive through the water that goes out flue 6 and heating chamber 4 inside, under the effect of heat transfer, shift the heat to the water in heating chamber 4 inside, make full use of discharges fume the heat of carrying, it is connected with fan 7 to lie in the flue 6 end outside furnace body 1, the wiring end of fan 7 is external to have power and control switch through the wire, through control switch, the start-stop of control fan 7, the end of giving vent to anger of fan 7 installs first defeated tobacco pipe 8, and be equipped with cooler bin 9 on the first defeated tobacco pipe 8, cooling water is injected into the cooling box 9, so that the temperature of the flue gas can be conveniently reduced through the cooling water, and further the flue gas oxidation efficiency of the next link is improved;

it is specific, through combustor 5 to the inside fuel of spraying of combustion chamber 3 and ignition burning, the heat that produces during the fuel burning passes through 2 transmissions of heat-conducting plate and gets into the inside heating water body of heating chamber 4, open fan 7 this moment, fan 7 gas flow with higher speed under the effect of centrifugal force, the flue gas suction that will burn the inside production of chamber 3 goes out inside flue 6, it sets up inside heating chamber 4 to go out flue 6, through heat transfer, 6 inside a large amount of heat transfer of play flue transmit the aquatic of heating chamber 4, inside through going out 6 transport entering cooler bin 9 of flue, the inside cooling water of cooler bin 9 cools down the flue gas, be convenient for the oxidation reaction of the inside nitric oxide gas body of flue gas.

The top end of the first smoke conveying pipe 8 is connected with a three-way pipe 10, one end of the three-way pipe 10 is connected with an oxygen feeding pipe 11, oxygen is introduced into the oxygen feeding pipe 11, the oxygen meets nitrogen monoxide in smoke inside the three-way pipe 10 to oxidize the nitrogen monoxide into nitrogen dioxide, the other end of the three-way pipe 10 is provided with a smoke inlet pipe 12, the smoke inlet pipe 12 is communicated with an alkalization box 13, the alkalization box 13 is arranged at the top of the furnace body 1, sodium hydroxide alkali liquor is filled inside the alkalization box 13, the sodium hydroxide alkali liquor can be used for alkalizing the nitrogen dioxide and sulfide gas in the smoke to remove the nitrogen dioxide and sulfide gas in the smoke, the alkalization box 13 is connected with a water tank 16 through a second smoke conveying pipe 15, water inside the water tank 16 can absorb the nitrogen monoxide which is not fully completed inside the alkalization box 13 under the condition of oxygen, the water tank 16 and the top of the alkalization box 13 are both provided with a liquid replenishing pipe 14, and the liquid replenishing pipe 14 are communicated with the alkalization box 13 and the water tank 16, be convenient for respectively to the inside supplementary alkali lye and the water of alkalization case 13 and water tank 16, be close to and be equipped with third defeated tobacco pipe 17 on the lateral wall of water tank 16 top, install on the third defeated tobacco pipe 17 and adsorb box 18, the inside packing of absorption box 18 has the adsorbent, can adsorb the inside poisonous and harmful gas of flue gas through the adsorbent, guarantees the security of flue gas emission, is connected with discharge pipe 19 on the absorption box 18 lateral wall.

Specifically, the cooled flue gas enters the three-way pipe 10, meets oxygen conveyed by the oxygen supply pipe 11 inside the three-way pipe 10, the oxygen oxidizes nitric oxide in the flue gas into nitrogen dioxide, the nitrogen dioxide is conveyed into the alkalization box 13 through the smoke inlet pipe 12 and is alkalized by sodium hydroxide alkali liquor inside the alkalization box 13, the nitrogen dioxide is alkalized, a small amount of nitrogen dioxide which is not fully alkalized is contained in the flue gas inside the alkalized flue gas, the nitrogen dioxide is conveyed into the water tank 16 through the second smoke conveying pipe 15, the nitrogen dioxide is absorbed by water inside the water tank 16, the absorbed flue gas enters the adsorption box 18 through the third smoke conveying pipe 17, toxic and harmful gases inside the flue gas are adsorbed by an adsorbent inside the adsorption box 18, and the absorbed flue gas is discharged to the outside through the discharge pipe 19.

The operating principle, this ultralow nitrogen condensation ordinary pressure boiler is in the in-process that uses:

firstly, an external power supply of the ultralow nitrogen condensation normal-pressure hot water boiler is connected, fuel is sprayed into a combustion chamber 3 through a burner 5 and ignited for combustion, heat generated during fuel combustion is transferred into a heating water body in a heating chamber 4 through a heat conduction plate 2, a fan 7 is started at the moment, the fan 7 accelerates gas flow under the action of centrifugal force, smoke generated in the combustion chamber 3 is sucked into a smoke outlet duct 6, the smoke outlet duct 6 is arranged in the heating chamber 4, a large amount of heat in the smoke outlet duct 6 is transferred into water in the heating chamber 4 through heat transfer and is conveyed into a cooling box 9 through the smoke outlet duct 6, and the smoke is cooled by cooling water in the cooling box 9;

and secondly, the cooled flue gas enters the three-way pipe 10, meets oxygen conveyed by the oxygen supply pipe 11 in the three-way pipe 10, the oxygen oxidizes the nitric oxide in the flue gas into nitrogen dioxide, the nitrogen dioxide is conveyed into the alkalization box 13 through the smoke inlet pipe 12 and is alkalized by sodium hydroxide alkali liquor in the alkalization box 13, the nitrogen dioxide is alkalized, a small amount of nitrogen oxide which is not fully alkalized is contained in the flue gas in the alkalized flue gas, the nitrogen oxide is conveyed into the water tank 16 through the second smoke conveying pipe 15, the nitric oxide is absorbed by water in the water tank 16, the absorbed flue gas enters the adsorption box 18 through the third smoke conveying pipe 17, the toxic and harmful gas in the flue gas is adsorbed by the adsorbent in the adsorption box 18, and the adsorbed flue gas is discharged to the outside through the discharge pipe 19. Make this ultralow nitrogen condensation ordinary pressure hot water boiler, the structure is clear, and the cost of manufacture is not high in earlier stage, can effectively guarantee condensation ordinary pressure hot water boiler's ultralow nitrogen emission standard, optimizes the production link of enterprise, reduces the nitride and discharges atmospheric pollution, and the environmental protection increases ultralow nitrogen treatment facility's practicality.

Further speaking, install bracing piece 20 through the staple bolt on adsorbing box 18, and the bracing piece 20 bottom is fixed at furnace body 1 top, and bracing piece 20 can effectively support and adsorb box 18, not only convenient to detach or equipment, the stable operation of adsorbing box 18 of assurance that can also be stable.

Further, be close to and be equipped with inlet tube 21 on the 1 lateral wall of furnace body on one side of cooler bin 9, and inlet tube 21 runs through the cooler bin 9 setting, pass the inside inlet tube 21 of cooler bin 9, not only can be through inlet tube 21 to heating chamber 4 inside injection treat heating water, can also absorb the transfer with the inside heat of first defeated tobacco pipe 8 through the inside water of inlet tube 21, reach and preheat the effect of treating heating water, install outlet pipe 22 on keeping away from the 1 lateral wall of furnace body on one side of inlet tube 21, can be inside the water discharge boiler that the heating was accomplished through outlet pipe 22.

Further, the heat insulating pad 23 is all installed at the junction between alkalization case 13, water tank 16 and the furnace body 1, and inside heat that the heat insulating pad 23 can effectual isolated furnace body 1 shifted to alkalization case 13 and water tank 16, avoided high temperature to influence the processing of flue gas nitride.

Furthermore, the first smoke conveying pipe 8 and the smoke inlet pipe 12 are both provided with a one-way valve 24, and the one-way valve 24 can avoid liquid backflow, so that normal use of the ultra-low nitrogen treatment equipment is ensured.

Furthermore, two bases 25 are arranged on two sides of the bottom of the furnace body 1.

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 utility model provides an ultralow nitrogen condensation ordinary pressure boiler, includes furnace body (1), its characterized in that: the furnace body (1) is internally provided with a heat-conducting plate (2), the furnace body (1) positioned below the heat-conducting plate (2) is a combustion chamber (3), the furnace body (1) positioned above the heat-conducting plate (2) is a heating chamber (4), a burner (5) is arranged on the side wall of the furnace body (1) corresponding to the combustion chamber (3), and the burner (5) is communicated with the inside of the combustion chamber (3), the heat conducting plate (2) is provided with a flue (6), the flue (6) is arranged inside the heating chamber (4), two ends of the flue outlet (6) penetrate through the heat conducting plate (2) and the furnace body (1), the end of the flue outlet (6) positioned outside the furnace body (1) is connected with a fan (7), a first smoke conveying pipe (8) is mounted at the air outlet end of the fan (7), and a cooling box (9) is arranged on the first smoke conveying pipe (8);

the top end of the first smoke conveying pipe (8) is connected with a three-way pipe (10), one end of the three-way pipe (10) is connected with an oxygen supply pipe (11), the other end of the three-way pipe is provided with a smoke inlet pipe (12), the smoke inlet pipe (12) is communicated with an alkalization box (13), the alkalization box (13) is arranged at the top of the furnace body (1), the alkalization box (13) is connected with a water tank (16) through a second smoke conveying pipe (15), liquid replenishing pipes (14) are arranged at the tops of the water tank (16) and the alkalization box (13), a third smoke conveying pipe (17) is arranged on the side wall of the top of the water tank (16), an adsorption box (18) is arranged on the third smoke conveying pipe (17), and a discharge pipe (19) is connected to the side wall of the adsorption box (18).

2. The ultra-low nitrogen condensing atmospheric pressure hot water boiler as claimed in claim 1, wherein: the support rod (20) is installed on the adsorption box (18) through a hoop, and the bottom of the support rod (20) is fixed at the top of the furnace body (1).

3. The ultra-low nitrogen condensing atmospheric pressure hot water boiler as claimed in claim 1, wherein: be close to be equipped with inlet tube (21) on furnace body (1) lateral wall of cooling box (9) one side, and inlet tube (21) run through cooling box (9) and set up, keep away from install outlet pipe (22) on furnace body (1) lateral wall of inlet tube (21) one side.

4. The ultra-low nitrogen condensing atmospheric pressure hot water boiler as claimed in claim 1, wherein: and heat insulation pads (23) are arranged at the joints among the alkalization box (13), the water tank (16) and the furnace body (1).

5. The ultra-low nitrogen condensing atmospheric pressure hot water boiler as claimed in claim 1, wherein: the first smoke conveying pipe (8) and the smoke inlet pipe (12) are both provided with one-way valves (24).

6. The ultra-low nitrogen condensing atmospheric pressure hot water boiler as claimed in claim 1, wherein: two bases (25) are arranged on two sides of the bottom of the furnace body (1).