CN205859974U - A kind of boiler reducing emitting nitride - Google Patents

A kind of boiler reducing emitting nitride Download PDF

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Publication number
CN205859974U
CN205859974U CN201620876149.0U CN201620876149U CN205859974U CN 205859974 U CN205859974 U CN 205859974U CN 201620876149 U CN201620876149 U CN 201620876149U CN 205859974 U CN205859974 U CN 205859974U
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China
Prior art keywords
boiler
heat exchanger
cooling heat
water inlet
outlet
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Active
Application number
CN201620876149.0U
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Chinese (zh)
Inventor
邱尔鹏
陈国良
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Zhejiang Liju thermal energy equipment Co.,Ltd.
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Zhejiang Unipower Boiler Co Ltd
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Priority to CN201620876149.0U priority Critical patent/CN205859974U/en
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Abstract

The utility model discloses a kind of boiler reducing emitting nitride, belong to boiler technology field, solve the technical problem that in prior art, flue gas amount of nitrides is higher, the boiler that reduction of the present utility model is nitrogen discharged, including combustor and boiler body, the burner hearth connected with combustor it is additionally provided with in described boiler body, the cooling heat exchanger for reducing flame temperature it is additionally provided with in described burner hearth, described boiler body is externally provided with water inlet pipe and outlet pipe, it is also associated with coolant circulation pump between water inlet and the described water inlet pipe of described cooling heat exchanger, the outlet of described cooling heat exchanger connects with described outlet pipe.

Description

A kind of boiler reducing emitting nitride
[technical field]
This utility model related to boiler technology field, particularly related to a kind of boiler reducing emitting nitride.
[background technology]
Nitride is one of major pollutants of air at present, and contains in the flue gas that boiler of the prior art is discharged Substantial amounts of nitride, environment can be caused severe contamination, bring threat to human survival by these nitride being discharged in air.
[utility model content]
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art to provide a kind of and reduce nitridation The boiler of thing discharge, it is possible to effectively conservation of nature environment.
Solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of boiler reducing emitting nitride, including combustor and boiler body, be additionally provided with in described boiler body with The burner hearth of combustor connection, is additionally provided with the cooling heat exchanger for reducing flame temperature, outside described boiler body in described burner hearth It is provided with water inlet pipe and outlet pipe, between water inlet and the described water inlet pipe of described cooling heat exchanger, is also associated with coolant circulation pump, The outlet of described cooling heat exchanger connects with described outlet pipe.
Further scheme, described boiler body is provided with heat exchanger, the two ends of described heat exchanger respectively with described water inlet Pipe connects with described outlet pipe.
Further scheme, described boiler also includes that water charging system, described water charging system include the first control valve and first Check valve, described first control valve is connected between described cooling heat exchanger outlet and described outlet pipe, described first unidirectional Valve is connected between described outlet pipe and described boiler body.
Further scheme, described water charging system also includes that softened water tank, the second control valve, small pump and second are unidirectional Valve, described second control valve is connected between described cooling heat exchanger outlet and described softened water tank, described softened water tank respectively with Described water inlet pipe and described small pump connect, and described second check valve is connected between described small pump and described boiler body.
Further scheme, the water inlet of described cooling heat exchanger and outlet are arranged on described cooling heat exchanger with described The corresponding side of combustor.
The beneficial effects of the utility model:
This utility model reduces nitrogen discharged boiler, including combustor and boiler body, is additionally provided with and fires in boiler body The burner hearth of burning machine connection, is additionally provided with the cooling heat exchanger for reducing flame temperature in burner hearth, boiler body is externally provided with water inlet pipe And outlet pipe, it is also associated with coolant circulation pump between water inlet and the water inlet pipe of cooling heat exchanger, the outlet of cooling heat exchanger Connect with outlet pipe.Compared with prior art, cooling heat exchanger of the present utility model can be lowered the temperature in burner hearth, to reduce fuel combustion The temperature of reaction during burning, thus the formation condition of nitride cannot be met, the nitride produced when decreasing fuel combustion, fall In low flue gas, the content of nitride, effectively protects natural environment.
Boiler body is provided with heat exchanger, and the two ends of heat exchanger connect with water inlet pipe and outlet pipe respectively.It is so designed that, changes Hot device can make the steam in boiler body be condensed into water, it is achieved with extraneous heat exchange, it is simple to the output of heat.
Boiler also includes water charging system, and water charging system includes that the first control valve and the first check valve, the first control valve connect Between cooling heat exchanger outlet and outlet pipe, the first check valve is connected between outlet pipe and boiler body.It is so designed that, Realize recycling of water, save water resource.
Water charging system also includes softened water tank, the second control valve, small pump and the second check valve, and the second control valve is connected to cold But between heat exchanger outlet and softened water tank, softened water tank is connected with water inlet pipe and small pump respectively, and the second check valve is connected to mend Between water pump and boiler body.Being so designed that, in boiler in the case of moisturizing deficiency, boiler also can be mended by softened water tank further Water, it is ensured that the water yield in boiler.
These features of the present utility model and advantage will be detailed in following detailed description of the invention, accompanying drawing exposure.
[accompanying drawing explanation]
Below in conjunction with the accompanying drawings this utility model is described further:
Fig. 1 is the structural representation of the boiler reducing emitting nitride in this utility model embodiment one;
Fig. 2 is the structural representation of the boiler reducing emitting nitride in this utility model embodiment two.
[detailed description of the invention]
Below in conjunction with the accompanying drawing of this utility model embodiment the technical scheme of this utility model embodiment explained and Illustrate, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the embodiment in embodiment, Those skilled in the art are obtained other embodiments on the premise of not making creative work, broadly fall into of the present utility model Protection domain.
Embodiment one,
With reference to shown in Fig. 1, the boiler reducing emitting nitride in the present embodiment is vacuum or atmospheric hot-water boiler, and it includes Boiler body 1 and combustor 2, be provided with burner hearth (not shown) in boiler body 1, burner hearth connects smoke pipe, smoke pipe and pot Exhaust opening 4 on furnace body 1 connects, and is also loaded with liquid, in boiler body 1 as a example by water.
Being additionally provided with cooling heat exchanger 3 in burner hearth of the present utility model, boiler body 1 is externally provided with water inlet pipe 5 and outlet pipe 6, Wherein be connected between the water inlet of cooling heat exchanger 3 with water inlet pipe 5 and have coolant circulation pump 7, the outlet of cooling heat exchanger 3 with go out Water pipe 6 connects, and boiler body 1 is additionally provided with heat exchanger 8.
During work, combustor 2 produces flame in burner hearth and lights fuel, so that the water in boiler body 1 is heated, and hot water Or cold water enters in cooling heat exchanger 3 from the cooled circulating pump of water inlet pipe 57, a part of heat produced during fuel combustion is cold But the water in heat exchanger 3 absorbs, and thus causes the reduction of flame temperature.Containing nitride in the flue gas produced after fuel combustion NOX, NOXFormed with oxygen combustion oxidation by nitrogen, and NOXGenerate and need higher reaction temperature, the most once flame temperature fall Low, will be unable to meet NOXFormation condition, the nitride produced when decreasing fuel combustion, thus reduce in flue gas and nitrogenize The content of thing, effectively protects natural environment, and the water heat absorption in cooling heat exchanger 3 flows in outlet pipe 6 after heating up.Due to burner hearth In high temperature action, the water in boiler body 1 can absorb heat formation steam, and the water in water inlet pipe 5 also can be in inflow heat exchanger 8, this Time heat exchanger 8 in cold water heat absorption, steam exothermic condensation formed water, and in heat exchanger 8 water heat absorption heat up and flow into outlet pipe 6 In.Achieve in this process and the exchange of extraneous heat, it is simple to the output of heat.
Embodiment two,
With reference to shown in Fig. 2, unlike embodiment one, the boiler in the present embodiment does not include heat exchanger, but includes The nitrogen discharged boiler that reduces in water charging system, and the present embodiment is steam oven or steam generator, the boiler in the present embodiment Body 1 is provided with evaporation mouth 15, and water charging system includes the first control valve 9 and the first check valve 10, and the first control valve 9 is connected to cold But, between heat exchanger outlet 32 and outlet pipe 6, the first check valve 10 is connected between outlet pipe 6 and boiler body 1.
Additionally, the water charging system in the present embodiment also includes that softened water tank the 12, second control valve 11, small pump 13 and second are single To valve 14, the second control valve 11 is connected between cooling heat exchanger outlet 32 and softened water tank 12, softened water tank 12 respectively with water inlet Pipe 5 and small pump 13 connect, and the second check valve 14 is connected between small pump 13 and boiler body 1.In the present embodiment first Control valve 9 and the second control valve 11 are electromagnetic valve or electrodynamic valve, and the first check valve 10 and the second check valve 14 can prevent hot water from returning Stream.
During work, when the discharge reduction in boiler body 1 requires supplementation with water, the first control valve 9 is opened, the second control valve 11 close, and now the cooled circulating pump of water 7 in softened water tank 12 enters in cooling heat exchanger 3, and the water after intensification controls through first Valve 9 enters in outlet pipe 6, and so that it is carried out moisturizing in the first check valve 10 flows into boiler body 1, if boiler body 1 Moisturizing or not enough time, then open small pump 8, the water in softened water tank 12 enters boiler through small pump 8 and the second check valve 14 In body 1, it is carried out further moisturizing.If the water yield of boiler body 1 is enough, then close the first control valve 9 and small pump 13, open the second control valve 11, now the water in cooling heat exchanger 3 realizes circulation with softened water tank 5.Compared with prior art, exist Above-mentioned whole during, the water charging system in the present embodiment can make full use of water resource, it is to avoid the waste of water resource.
In the above two embodiments, water inlet and the outlet of cooling heat exchanger 3 is arranged on cooling heat exchanger 3 and burning The corresponding side of machine 2.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to In this, it is familiar with this those skilled in the art and should be understood that this utility model includes but not limited to accompanying drawing and specific embodiment party above Content described in formula.Any amendment without departing from function of the present utility model and structural principle is intended to be included in claims Scope in.

Claims (5)

1. reduce a boiler for emitting nitride, including combustor and boiler body, be additionally provided with in described boiler body and fire The burner hearth of burning machine connection, it is characterised in that: it is additionally provided with the cooling heat exchanger for reducing flame temperature, described pot in described burner hearth Furnace body is externally provided with water inlet pipe and outlet pipe, is also associated with cooling between water inlet and the described water inlet pipe of described cooling heat exchanger Circulating pump, the outlet of described cooling heat exchanger connects with described outlet pipe.
The boiler of reduction emitting nitride the most according to claim 1, it is characterised in that: described boiler body is provided with and changes Hot device, the two ends of described heat exchanger connect with described water inlet pipe and described outlet pipe respectively.
The boiler of reduction emitting nitride the most according to claim 1, it is characterised in that: described boiler also includes moisturizing system System, described water charging system includes that the first control valve and the first check valve, described first control valve are connected to described cooling heat exchanger Between outlet and described outlet pipe, described first check valve is connected between described outlet pipe and described boiler body.
The boiler of reduction emitting nitride the most according to claim 3, it is characterised in that: described water charging system also includes soft Water tank, the second control valve, small pump and the second check valve, described second control valve be connected to described cooling heat exchanger outlet with Between described softened water tank, described softened water tank is connected with described water inlet pipe and described small pump respectively, and described second check valve connects Between described small pump and described boiler body.
The boiler of reduction emitting nitride the most according to claim 1, it is characterised in that: the water inlet of described cooling heat exchanger Mouth and outlet are arranged on the side that described cooling heat exchanger is corresponding with described combustor.
CN201620876149.0U 2016-08-10 2016-08-10 A kind of boiler reducing emitting nitride Active CN205859974U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620876149.0U CN205859974U (en) 2016-08-10 2016-08-10 A kind of boiler reducing emitting nitride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620876149.0U CN205859974U (en) 2016-08-10 2016-08-10 A kind of boiler reducing emitting nitride

Publications (1)

Publication Number Publication Date
CN205859974U true CN205859974U (en) 2017-01-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620876149.0U Active CN205859974U (en) 2016-08-10 2016-08-10 A kind of boiler reducing emitting nitride

Country Status (1)

Country Link
CN (1) CN205859974U (en)

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CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 313023 Zhejiang Liju water heater Co., Ltd., east of Jianshe North Road, shangqiang industrial functional zone, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province

Patentee after: Zhejiang Liju thermal energy equipment Co.,Ltd.

Address before: 313023 Zhejiang Liju water heater Co., Ltd., east of Jianshe North Road, shangqiang industrial functional zone, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province

Patentee before: ZHEJIANG UNIPOWER BOILER Co.,Ltd.