CN204806365U - Add energy -saving boiler that is equipped with water -cooled boiler feed water reducing temperature equipment - Google Patents

Add energy -saving boiler that is equipped with water -cooled boiler feed water reducing temperature equipment Download PDF

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Publication number
CN204806365U
CN204806365U CN201520426899.3U CN201520426899U CN204806365U CN 204806365 U CN204806365 U CN 204806365U CN 201520426899 U CN201520426899 U CN 201520426899U CN 204806365 U CN204806365 U CN 204806365U
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boiler
water
cooled
feedwater
boiler feedwater
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Expired - Fee Related
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CN201520426899.3U
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Chinese (zh)
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焦武军
焦弈豪
范高峰
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Abstract

The utility model discloses an add energy -saving boiler that is equipped with water -cooled boiler feed water reducing temperature equipment, including boiler and boiler economizer, its characterized in that: still include water -cooled boiler feed water reducing temperature equipment, water -cooled boiler feed water reducing temperature equipment's boiler feed water import is connected with the boiler feed water pump, and water -cooled boiler feed water reducing temperature equipment's boiler feed water export is connected with the water inlet of boiler with boiler economizer's the 2nd boiler feed water access connection, boiler economizer's the 2nd boiler feed water export, and water -cooled boiler feed water reducing temperature equipment still is provided with reducing temperature equipment 5 and hot water export. Adopt the utility model discloses the reducing energy consumption is carried out to the boiler, boiler exhaust gas temperature 10-more than 60 DEG C, improve more than the boiler efficiency 2% can be reduced.

Description

A kind of energy-saving type boiler adding water-cooled boiler feedwater Desuperheating device
Technical field
The utility model belongs to boiler technology field, is specifically related to a kind of energy-saving type boiler adding water-cooled boiler feedwater Desuperheating device.
Background technology
As energy-consuming big country, the importance of energy problem is well known.In order to the requirement of specification boiler energy-saving, State Bureau of Technical Supervision has promulgated TSGG0002-2010 " boiler energy-saving technical supervision rule of management " on August 30th, 2010, has made requirement to the thermal efficiency of various boiler and other indexs.Energy-saving and emission-reduction work also becomes the main development direction of boiler industry.
In boiler heat loss, heat loss due to exhaust gas ranks the first position, and the mainly exhaust gas temperature that heat loss due to exhaust gas is impacted and Air Leakage Into Boilers (excess air coefficient).Wherein the having the greatest impact of exhaust gas temperature, exhaust gas temperature becomes the leading indicator of boiler energy-saving naturally, and TSGG0002-2010 " boiler energy-saving technical supervision rule of management " also specifies the highest exhaust gas temperature of various boiler and excess air coefficient.
At present, when most of station boiler and Industrial Boiler design and running, design exhaust gas temperature is generally at 150 ~ 160 DEG C, most exhaust gas temperature 160 ~ 170 DEG C during operation.Generally, heat loss due to exhaust gas is 8 ~ 11%, and exhaust gas temperature often raises 15 degree, and heat loss can increase about 1%, and the thermal efficiency of boiler will reduce about 1%.
For 35 tons of CFBBs of the II class bituminous coal that burns, TSGG0002-2010 " boiler energy-saving technical supervision code rule of management " being defined as its thermal efficiency: limit value 83%, desired value 89%.
According to the calorific capacity 5000Kcal of coal, the thermal efficiency 86% calculates, and coal consumption is 5300kg/ hours, and so exhaust gas temperature often raises 15 degree, will cause many consumption coal 53kg/H.According to general large-sized boiler and running time in station boiler year being that 8000 hours are considered, the coal consumption amount of increase is 424 tons.
Existing steam generator system adopts temperature to be the desalted water of 105 DEG C mostly, because feed temperature is too high, causes exhaust gas temperature generally can only be reduced to 150 ~ 160 DEG C.Even if can continue to reduce exhaust gas temperature, because the temperature difference is too little, need to consume a large amount of steel, cost performance also can reduce greatly.
Utility model content
The technical problems to be solved in the utility model is that existing steam generator system adopts temperature to be the desalted water of 105 DEG C mostly, because feed temperature is too high, causes exhaust gas temperature generally can only be reduced to 150 ~ 160 DEG C.Even if can continue to reduce exhaust gas temperature, because the temperature difference is too little, need to consume a large amount of steel, cost performance also can reduce greatly, and for solving the problem, the utility model provides a kind of energy-saving type boiler adding water-cooled boiler feedwater Desuperheating device.
The purpose of this utility model realizes in the following manner:
A kind of energy-saving type boiler adding water-cooled boiler feedwater Desuperheating device, comprise boiler and boiler economizer, it is characterized in that: also comprise water-cooled boiler feedwater Desuperheating device, first boiler feedwater inlet of water-cooled boiler feedwater Desuperheating device is connected with boiler feed pump, first boiler feedwater outlet of water-cooled boiler feedwater Desuperheating device is connected with the second boiler feedwater inlet of boiler economizer, second boiler feedwater outlet of boiler economizer is connected with the water inlet of boiler, and water-cooled boiler feedwater Desuperheating device is also provided with cooling water inlet and hot water outlet.
From boiler feedwater pump discharge, through water-cooled boiler feedwater Desuperheating device, to boiler water inlet between boiler feedwater loop be closed conduit connect.
Relative to prior art, the beneficial effects of the utility model are:
For most users, the shower cabinet that small-sized all can be set up in boiler room, for worker's bathing.These shower cabinets all time majority be steam heated.And the water-cooled boiler feedwater Desuperheating device using the utility model to provide, heat shower water with the high-temperature boiler feedwater that temperature is 105 DEG C ~ 130 DEG C, shower water can be heated to 60 ~ 80 DEG C like this, the needs of worker's bathing can be met completely.Boiler feed temperature can be reduced to 30 ~ 80 DEG C by 105 DEG C ~ 130 DEG C simultaneously, realize exhaust gas temperature and be reduced to 100 ~ 130 DEG C by 150 ~ 160 DEG C.
So same generation two energy-saving effects, one is the Boiler Steam of having saved original heating shower water; Two exhaust gas temperatures being reduction of boiler, improve the thermal efficiency.Certainly, the hot water that " water-cooled boiler feedwater Desuperheating device " produces, except worker's bathing, also may be used for the place that other need hot water.Such as, adopt 20 DEG C of boiler soft waters without deoxygenation as " the water-cooled boiler feedwater Desuperheating device " of refrigerant body, so same generation two energy-saving effects, one has been the reduction of the quantity of steam that original boiler heating power oxygen-eliminating device uses; Two exhaust gas temperatures being reduction of boiler, improve the thermal efficiency.
Adopt the utility model to carry out reducing energy consumption to boiler, exhaust gas temperature more than 10 ~ 60 DEG C can be reduced, improve boiler thermal output more than 2%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is when adopting air-cooled boiler feedwater Desuperheating device, structural representation of the present invention.
Fig. 3 is when adopting water-cooled boiler feedwater Desuperheating device, structural representation of the present invention.
Fig. 4 is when adopting without water-cooled boiler feedwater Desuperheating device as refrigerant body of 20 DEG C of boiler soft waters of deoxygenation, structural representation of the present invention.
Wherein, 1 is boiler; 11 is water inlets; 13 is air inlets; 2 is boiler economizers; 3 is boiler feedwater Desuperheating devices; 31 is first boiler feedwater inlet; 32 is first boiler feedwater outlets; 33 is cold medium imports; 34 is heat medium outlets; 35 is heat exchanger bodies; 4 is air-cooled boiler feedwater Desuperheating devices; 43 is inlet of cold airs; 44 is hot air outlets; 5 is water-cooled boiler feedwater Desuperheating devices; 53 is cooling water inlets; 54 is hot water outlets; 6 is thermal deaerators; 61 is oxygen-eliminating device delivery ports; 62 is oxygen-eliminating device water inlets; 7 is adopt 20 DEG C of boiler soft waters without deoxygenation as the water-cooled boiler feedwater Desuperheating device of refrigerant body; 71 is deaerated water imports; 72 is demineralized water imports; 73 is deaerated water outlets; 74 is demineralized water outlets; 8 is boiler feed pumps.
Detailed description of the invention
As shown in accompanying drawing 1-4, a kind of boiler feedwater desuperheat energy saver, it is characterized in that: comprise heat exchanger body 35, the first boiler feedwater inlet 31 be connected with boiler feed pump 8, the first boiler feedwater be connected with the second boiler feedwater inlet 21 of boiler economizer 2 exports 32, and cold medium import 33 and heat medium outlet 34.
A kind of energy-saving device of boiler, comprise boiler 1 and boiler economizer 2, also comprise boiler feedwater Desuperheating device 3, first boiler feedwater inlet 31 of boiler feedwater Desuperheating device 3 is connected with boiler feed pump 8, first boiler feedwater outlet 32 of boiler feedwater Desuperheating device 3 is connected with the second boiler feedwater inlet 21 of boiler economizer 2, second boiler feedwater outlet 22 of boiler economizer 2 is connected with the water inlet 11 of boiler 1, and boiler feedwater desuperheat fills 3 and is also provided with cold medium import 33 and heat medium outlet 34.
Described boiler feedwater Desuperheating device 3 is air-cooled boiler feedwater Desuperheating device 4, air-cooled boiler feedwater Desuperheating device 4 is provided with inlet of cold air 43 and hot air outlet 44, and hot air outlet 44 is connected with the air inlet 13 of boiler 1.
Described boiler feedwater Desuperheating device 3 is water-cooled boiler feedwater Desuperheating device 5, water-cooled boiler feedwater Desuperheating device 5 is provided with cooling water inlet 53 and hot water outlet 54.
Described boiler feedwater Desuperheating device 3 is adopt 20 DEG C of boiler soft waters without deoxygenation as the water-cooled boiler feedwater Desuperheating device 7 of refrigerant body, adopts 20 DEG C of boiler soft waters without deoxygenation to be connected with the second boiler feedwater inlet 21 of boiler economizer 2 as the deaerated water outlet 73 of the water-cooled boiler feedwater Desuperheating device 7 of refrigerant body.
In described steam generator system, export from boiler feed pump 8, through boiler feedwater Desuperheating device 3, to boiler 1 water inlet 11 between boiler feedwater loop be closed conduit and connect, guarantee that the boiler feedwater through softening and deoxygenation can not secondary pollution, reduce quality.
Described boiler feedwater Desuperheating device 3 comprises independent configuration or the combination configuration of air-cooled boiler feedwater Desuperheating device 4 and water-cooled boiler feedwater Desuperheating device 5.
A kind of boiler energy-saving method, the boiler high temperature water-supply of 105 ~ 130 DEG C is first carried out heat exchange by boiler feedwater Desuperheating device 3, its temperature is made to be reduced to 30 ~ 80 DEG C, the boiler feedwater of 30 ~ 80 DEG C is made to carry out heat exchange through boiler economizer 2 and boiler smoke more again, make exhaust gas temperature be reduced to 100 ~ 130 DEG C, the boiler high temperature water-supply through heat exchange enters boiler 1 internal system.
The course of work of the present utility model is as follows: the boiler high temperature water-supply of 105 ~ 130 DEG C enters boiler feedwater Desuperheating device 3 by the first boiler feedwater inlet 31, through carrying out heat exchange with cold medium, its temperature is reduced to 30 ~ 80 DEG C, the boiler feedwater of 30 ~ 80 DEG C flows out boiler feedwater Desuperheating device 3 by the first boiler feedwater outlet 32, and enter boiler economizer 2 by the second boiler feedwater inlet 21, carry out heat exchange with boiler smoke, make exhaust gas temperature be reduced to 100 ~ 130 DEG C.
When boiler feedwater Desuperheating device 3 is air-cooled boiler feedwater Desuperheating device 4, cold air enters air-cooled boiler feedwater Desuperheating device 4 by inlet of cold air 43, desuperheat is carried out to the boiler high temperature water-supplies of 105 ~ 130 DEG C, hot-air through heat exchange flows out air-cooled boiler feedwater Desuperheating device 4 by hot air outlet 44, and is entered in boiler 1 by the air inlet 13 of boiler 1.
When boiler feedwater Desuperheating device 3 is water-cooled boiler feedwater Desuperheating device 5, cold water enters water-cooled boiler feedwater Desuperheating device 5 by cooling water inlet 53, carry out desuperheat to the boiler high temperature water-supplies of 105 ~ 130 DEG C, the hot water through heat exchange flows out water-cooled boiler feedwater Desuperheating device 5 by hot water outlet 54.
When boiler feedwater Desuperheating device 3 be adopt without water-cooled boiler feedwater Desuperheating device 7 as refrigerant body of 20 DEG C of boiler soft waters of deoxygenation time, the oxygen-eliminating device delivery port 61 of thermal deaerator 6 connects 20 DEG C of boiler soft waters adopting without deoxygenation as the deaerated water import 71 of the water-cooled boiler feedwater Desuperheating device 7 of refrigerant body, 20 DEG C of boiler soft waters without deoxygenation are adopted to connect the oxygen-eliminating device water inlet 62 of oxygen-eliminating devices as the demineralized water outlet 74 of the water-cooled boiler feedwater Desuperheating device 7 of refrigerant body, 20 DEG C of boiler soft waters without deoxygenation are adopted to connect soft water source as the demineralized water import 72 of the water-cooled boiler feedwater Desuperheating device 7 of refrigerant body, 20 DEG C of boiler soft waters without deoxygenation are adopted also to be provided with deaerated water outlet 73 as the water-cooled boiler feedwater Desuperheating device 7 of refrigerant body.When being 105 DEG C of oxygen-eliminating device water outlet desuperheats with the demineralized water of temperature 20 DEG C to temperature, temperature is that the oxygen-eliminating device water outlet of 105 DEG C is also heating up to the demineralized water of temperature 20 DEG C, deaerated water outlet 73 is connected by pipeline with the second boiler feedwater inlet 21, the deaerated water of desuperheat enters boiler economizer 2, carry out heat exchange with boiler smoke, make exhaust gas temperature be reduced to 100 ~ 130 DEG C.
Relative to prior art, the beneficial effects of the utility model are:
1, the small-sized fast-assembling of general bituminous coal, self-contained boiler do not have air preheater, use anthracite and the in bulk boiler of evaporation capacity more than 20 tons has all installed air preheater additional, but these air preheaters are all that after utilizing boiler economizer, temperature carrys out preheating cold air at the flue gas of about 160 DEG C.For the small-sized fast-assembling, the self-contained boiler that there is no air preheater, the air-cooled boiler feedwater Desuperheating device of cold air as refrigerant body of use 10 ~ 20 DEG C can be installed additional, the energy-saving effect of two aspects can be produced like this:
1. boiler feed temperature can be reduced to 30 ~ 80 DEG C by 105 DEG C ~ 130 DEG C, more back-end surfaces can be arranged, make exhaust gas temperature be reduced to by 150 ~ 160 DEG C the possibility that 120 ~ 130 DEG C become a kind of reality;
2. temperature 10 ~ 20 DEG C of cold airs can be heated to be the hot-air of 60 ~ 80 DEG C, the combustion conditions of boiler can be improved, improve efficiency of combustion, reduce the heat loss due to unburned gas of boiler;
For the boiler installing air preheater additional, also can install the air-cooled boiler feedwater Desuperheating device of the one-level cold air of 10 ~ 20 DEG C as refrigerant body additional, out the hot-air of 60 ~ 80 DEG C can continue to enter original air preheater to continue heating.
2, for most users, the shower cabinet that small-sized can all be set up in boiler room, for worker's bathing.These shower cabinets all time majority be steam heated.And the water-cooled boiler feedwater Desuperheating device using the utility model to provide, heat shower water with the high-temperature boiler feedwater that temperature is 105 DEG C ~ 130 DEG C, shower water can be heated to 60 ~ 80 DEG C like this, the needs of worker's bathing can be met completely.Boiler feed temperature can be reduced to 30 ~ 80 DEG C by 105 DEG C ~ 130 DEG C simultaneously, realize exhaust gas temperature and be reduced to 100 ~ 130 DEG C by 150 ~ 160 DEG C.
So same generation two energy-saving effects, one is the Boiler Steam of having saved original heating shower water; Two exhaust gas temperatures being reduction of boiler, improve the thermal efficiency.Certainly, the hot water that " water-cooled boiler feedwater Desuperheating device " produces, except worker's bathing, also may be used for the place that other need hot water.Such as, adopt 20 DEG C of boiler soft waters without deoxygenation as " the water-cooled boiler feedwater Desuperheating device " of refrigerant body, so same generation two energy-saving effects, one has been the reduction of the quantity of steam that original boiler heating power oxygen-eliminating device uses; Two exhaust gas temperatures being reduction of boiler, improve the thermal efficiency.
Adopt the utility model to carry out reducing energy consumption to boiler, exhaust gas temperature more than 10 ~ 60 DEG C can be reduced, improve boiler thermal output more than 2%.
Above-described is only preferred embodiment of the present utility model; it should be pointed out that for a person skilled in the art, do not departing under the utility model general idea prerequisite; can also make some changes and improvements, these also should be considered as protection domain of the present utility model.

Claims (2)

1. one kind adds the energy-saving type boiler of water-cooled boiler feedwater Desuperheating device, comprise boiler (1) and boiler economizer (2), it is characterized in that: also comprise water-cooled boiler feedwater Desuperheating device (5), first boiler feedwater inlet (31) of water-cooled boiler feedwater Desuperheating device (5) is connected with boiler feed pump (8), first boiler feedwater outlet (32) of water-cooled boiler feedwater Desuperheating device (5) is connected with second boiler feedwater inlet (21) of boiler economizer (2), second boiler feedwater outlet (22) of boiler economizer (2) is connected with the water inlet (11) of boiler (1), water-cooled boiler feedwater Desuperheating device (5) is also provided with cooling water inlet (53) and hot water outlet (54).
2. the energy-saving type boiler adding energy-saving appliance according to claim 1, it is characterized in that: export from boiler feed pump (8), through water-cooled boiler feedwater Desuperheating device (5), to boiler (1) water inlet (11) between boiler feedwater loop be closed conduit connect.
CN201520426899.3U 2015-06-19 2015-06-19 Add energy -saving boiler that is equipped with water -cooled boiler feed water reducing temperature equipment Expired - Fee Related CN204806365U (en)

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CN201520426899.3U CN204806365U (en) 2015-06-19 2015-06-19 Add energy -saving boiler that is equipped with water -cooled boiler feed water reducing temperature equipment

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CN201520426899.3U CN204806365U (en) 2015-06-19 2015-06-19 Add energy -saving boiler that is equipped with water -cooled boiler feed water reducing temperature equipment

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990062A (en) * 2015-06-19 2015-10-21 焦武军 Energy-saving method and energy-saving device for boiler
CN109519912A (en) * 2017-09-19 2019-03-26 焦武军 A kind of energy-saving type boiler system matched with condensation water recovery system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104990062A (en) * 2015-06-19 2015-10-21 焦武军 Energy-saving method and energy-saving device for boiler
CN104990062B (en) * 2015-06-19 2017-03-01 焦武军 A kind of boiler energy-saving method and energy saver
CN109519912A (en) * 2017-09-19 2019-03-26 焦武军 A kind of energy-saving type boiler system matched with condensation water recovery system

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Granted publication date: 20151125

Termination date: 20170619