CN210772111U - Device capable of reducing energy consumption of boiler - Google Patents

Device capable of reducing energy consumption of boiler Download PDF

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Publication number
CN210772111U
CN210772111U CN201921162073.5U CN201921162073U CN210772111U CN 210772111 U CN210772111 U CN 210772111U CN 201921162073 U CN201921162073 U CN 201921162073U CN 210772111 U CN210772111 U CN 210772111U
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boiler
water
cooling water
pipeline
tank
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CN201921162073.5U
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冯晓文
欧阳天生
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Jiangxi O&t Technology Co ltd
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Jiangxi O&t Technology Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

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Abstract

The utility model discloses a device capable of reducing energy consumption of a boiler, which belongs to the technical field of waste heat recovery in industrial production, and has the technical scheme that the device comprises a sodium metasilicate pentahydrate crystallization cooling device, a boiler device and a cooling water treatment device, wherein the sodium metasilicate pentahydrate crystallization cooling device comprises a crystallization tank and a cooling water pool, the crystallization tank is externally connected with a tap water pipe, the crystallization tank is connected with the cooling water pool through a pipeline, a heat exchanger is additionally arranged inside the crystallization tank, a water inlet of the heat exchanger is connected with the tap water pipe, a water outlet is connected with the cooling water pool through a pipeline, and the tap water pipe is provided with a control valve; the boiler device comprises an economizer and a boiler. This kind of device that can reduce boiler energy consumption has improved the temperature of boiler intake, is showing the energy consumption that reduces boiler production steam to effectively solved sodium metasilicate pentahydrate production and used the too high problem of back temperature by cyclic utilization.

Description

Device capable of reducing energy consumption of boiler
Technical Field
The utility model relates to a waste heat recovery technical field in the industrial production, in particular to can reduce device of boiler energy consumption.
Background
The mother liquor circulation method for producing sodium metasilicate pentahydrate needs to cool the raw material in a crystallizing tank, crystals of the sodium metasilicate pentahydrate can be generated, the crystallization of the sodium metasilicate pentahydrate is an exothermic reaction, the crystallization reaction can be started only when the temperature is reduced to about 40 ℃, the cooling method generally adopts the method that a coil type heat exchanger is additionally arranged in the crystallizing tank, tap water is used as a medium for cooling, cooling water flows between the heat exchanger and a circulation tank, the water temperature of the water out of the heat exchanger of the crystallizing tank can be increased to 80-90 ℃ due to the heat of the raw material in the tank, the high-temperature cooling water is repeatedly recycled after being cooled by a cooling tower, but the cooling effect is not obvious, the temperature of the cooling water is also too high, and the cooling effect of the cooling water after multiple circulations is not good.
On the other hand, in industrial production, a boiler is an important device for producing water glass, the energy consumption is high and low, and the production cost of the water glass is related, generally, water for the boiler is basically tap water or well water, the principle is that the boiler barrel is heated after fuel is combusted to generate steam, the reaction condition for producing the water glass is met through high-temperature steam, and if the temperature of boiler inlet water can be increased, the energy consumption for producing the steam by the boiler can be obviously reduced.
SUMMERY OF THE UTILITY MODEL
The problem to prior art exists, the utility model aims at providing a can reduce device of boiler energy consumption, this kind of can reduce device of boiler energy consumption has improved the temperature that the boiler intake, is showing the energy consumption that reduces boiler production steam to effectively solved sodium metasilicate pentahydrate production and used the too high problem of cooling water by cyclic utilization after-temperature.
The above technical purpose of the present invention can be achieved by the following technical solutions: a device capable of reducing energy consumption of a boiler comprises a sodium metasilicate pentahydrate crystallization cooling device, a boiler device and a cooling water treatment device, wherein the sodium metasilicate pentahydrate crystallization cooling device comprises a crystallization tank and a cooling water tank, a tap water pipe is externally connected with the crystallization tank, the crystallization tank is connected with the cooling water tank through a pipeline, a heat exchanger is additionally arranged inside the crystallization tank, a water inlet of the heat exchanger is connected with the tap water pipe, a water outlet of the heat exchanger is connected with the cooling water tank through a pipeline, and a control valve is arranged on the tap water pipe; the boiler device comprises an economizer and a boiler, a water inlet pipe and a boiler tail flue are connected between the economizer and the boiler, and a smoke exhaust pipe is also connected to the economizer; the cooling water treatment device is connected between the sodium metasilicate pentahydrate crystallization cooling device and the boiler device through a pipeline, a first clean water pump and a control valve are arranged on the pipeline between the cooling water treatment device and the cooling water tank, and a multistage pump and a control valve are arranged on the pipeline between the cooling water treatment device and the economizer.
Further, the cooling water treatment facilities is including filter, water softener and header tank, the filter the water softener with the header tank is established ties in proper order from sodium metasilicate pentahydrate crystallization cooling device's position to boiler plant's position through the pipeline, the filter with be provided with second clean water pump and control valve on the pipeline between the water softener, just the water softener with also be provided with the control valve on the pipeline between the header tank.
Furthermore, a plurality of 'snake-shaped' heat exchange tubes are arranged inside the economizer, one ends of the heat exchange tubes are connected with a water inlet tube between the economizer and the boiler, and the other ends of the heat exchange tubes are connected with the water collecting tank through pipelines.
Furthermore, a temperature sensor is arranged on the crystallizing tank.
Furthermore, the outer wall of the water collecting tank is attached with heat insulation cotton.
To sum up, the utility model discloses following beneficial effect has:
this kind of can reduce device of boiler energy consumption, the cooling water that will be used for sodium metasilicate pentahydrate production is used in introducing the boiler, the temperature that the boiler intake has been improved, show the energy consumption that reduces boiler production steam, and the cooling water also need not rethread cooling tower cooling back circulation use, after the higher cooling water transmission of used temperature gives the boiler, it is new directly to mend again, the lower cooling water of temperature comes to cool down sodium metasilicate pentahydrate's production, thereby effectively solved sodium metasilicate pentahydrate production and used the too high problem of cooling water behind the cyclic utilization.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a crystallization tank; 2. a cooling water pool; 3. a first clean water pump; 4. a filter; 5. a second clean water pump; 6. a water softener; 7. a water collection tank; 8. a multi-stage pump; 9. a coal economizer; 10. a boiler.
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.
Example 1
Referring to fig. 1, a device for reducing energy consumption of a boiler comprises a sodium metasilicate pentahydrate crystallization cooling device, a boiler device and a cooling water treatment device, wherein the sodium metasilicate pentahydrate crystallization cooling device comprises a crystallization tank 1 and a cooling water tank 2, a tap water pipe is externally connected with the crystallization tank 1, the crystallization tank 1 is connected with the cooling water tank 2 through a pipeline, a heat exchanger is additionally arranged inside the crystallization tank 1, a water inlet of the heat exchanger is connected with the tap water pipe, a water outlet of the heat exchanger is connected with the cooling water tank 2 through a pipeline, and a control valve is arranged on the tap water pipe; the boiler device comprises an economizer 9 and a boiler 10, a water inlet pipe and a boiler tail flue are connected between the economizer 9 and the boiler 10, and a smoke exhaust pipe is also connected to the economizer 9; the cooling water treatment device is connected between the sodium metasilicate pentahydrate crystallization cooling device and the boiler device through a pipeline, a first clean water pump 3 and a control valve are arranged on the pipeline between the cooling water treatment device and the cooling water tank 2, and a multistage pump 8 and a control valve are arranged on the pipeline between the cooling water treatment device and the economizer 9.
Through the technical scheme, the sodium metasilicate pentahydrate raw material is put into the crystallizing tank 1 for crystallization reaction, a large amount of heat is generated, a control valve on a tap water pipe is opened, tap water is used as cooling water, the cooling water continuously flows in from a water inlet of a heat exchanger in the crystallizing tank 1 and then flows out from an outlet of the heat exchanger, the heat generated by the sodium metasilicate pentahydrate crystallization reaction in the process is transferred to the cooling water, the heat in the crystallizing tank 1 is continuously transferred to the outside of the crystallizing tank 1 along with the flowing of the cooling water, and the cooling of the sodium metasilicate pentahydrate crystal is realized; cooling water from the crystallization tank 1 carries a large amount of heat and is high in temperature, flows into the cooling water pool 2 along a pipeline, then all control valves are opened, power is supplied to the cooling water through the first clean water pump 3 and the multistage pump 8, the cooling water flows through the cooling water treatment device quickly, the water quality of the cooling water is improved, and the damage to the boiler 10 caused by excessive impurities in the cooling water is avoided; the multi-stage pump 8 drives the cooling water to flow through the economizer 9 and finally flow into the boiler 10 along the water inlet pipe, in the process, high-temperature flue gas generated by the combustion of fuel in the boiler 10 enters the economizer 9 along the tail flue of the boiler, and finally discharged to the outside from the smoke discharge pipe of the economizer 9, so that the high-temperature smoke and the cooling water flowing through the interior of the economizer 9 are subjected to heat exchange, the temperature of the smoke is reduced, the temperature of the cooling water is raised again, thereby obviously reducing the energy consumption of the boiler 10 for producing steam, simultaneously, the cooling water for producing sodium metasilicate pentahydrate is not required to be recycled after being cooled by a cooling tower, the used cooling water with higher temperature is transmitted to the boiler 10, the production of the sodium metasilicate pentahydrate is cooled by directly supplementing new cooling water with lower temperature through a tap water pipe, thereby effectively solving the problem of overhigh temperature after the cooling water for producing the sodium metasilicate pentahydrate is recycled.
Example 2
Referring to fig. 1, an apparatus for reducing energy consumption of a boiler, which is substantially the same as that of embodiment 1, further, a cooling water treatment apparatus includes a filter 4, a water softener 6 and a header tank 7, the filter 4, the water softener 6 and the header tank 7 are connected in series in sequence from the position of a sodium metasilicate pentahydrate crystal cooling apparatus to the position of a boiler apparatus through a pipeline, cooling water is filtered and softened by the filter 4 and the water softener 6, respectively, and then collected in the header tank 7, a second clean water pump 5 and a control valve are provided on the pipeline between the filter 4 and the water softener 6, and a control valve is also provided on the pipeline between the water softener 6 and the header tank 7, the second clean water pump 5 further provides power for the transmission of the cooling water, and the control valve is used for controlling the transmission of the cooling water.
Example 3
Referring to fig. 1, a device for reducing boiler energy consumption is substantially the same as that of embodiment 1, further, a plurality of 'snake' heat exchange tubes are arranged inside an economizer 9, one ends of the heat exchange tubes are connected with a water inlet tube between the economizer 9 and a boiler 10, the other ends of the heat exchange tubes are connected with a water collecting tank 7 through a pipeline, cooling water flows along the plurality of 'snake' heat exchange tubes after flowing into the economizer 9 from the water collecting tank 7, and then enters the boiler 10 along the water inlet tube, and in the process, the heat exchange efficiency of the cooling water and high-temperature flue gas is greatly increased.
Example 4
An apparatus for reducing energy consumption of a boiler, which is substantially the same as that of embodiment 1, further comprising a temperature sensor provided on the crystallization tank 1 for observing the progress of the crystallization reaction of sodium metasilicate pentahydrate in the crystallization tank 1 by temperature change.
Example 5
The device for reducing the energy consumption of the boiler is basically the same as that in the embodiment 1, and furthermore, the heat preservation cotton is attached to the outer wall of the water collecting tank 7, so that the heat loss of cooling water in the water collecting tank 7 is effectively reduced.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (5)

1. The utility model provides a can reduce device of boiler energy consumption, includes sodium metasilicate pentahydrate crystallization cooling device, boiler plant and cooling water treatment facilities, its characterized in that:
the sodium metasilicate pentahydrate crystallization cooling device comprises a crystallization tank (1) and a cooling water pool (2), wherein the crystallization tank (1) is externally connected with a tap water pipe, meanwhile, the crystallization tank (1) is connected with the cooling water pool (2) through a pipeline, a heat exchanger is additionally arranged inside the crystallization tank (1), a water inlet of the heat exchanger is connected with the tap water pipe, a water outlet of the heat exchanger is connected with the cooling water pool (2) through a pipeline, and a control valve is arranged on the tap water pipe;
the boiler device comprises a coal economizer (9) and a boiler (10), a water inlet pipe and a boiler tail flue are connected between the coal economizer (9) and the boiler (10), and a smoke exhaust pipe is also connected to the coal economizer (9);
the cooling water treatment device is connected between the sodium metasilicate pentahydrate crystallization cooling device and the boiler device through a pipeline, a first clean water pump (3) and a control valve are arranged on the pipeline between the cooling water treatment device and the cooling water tank (2), and a multistage pump (8) and a control valve are arranged on the pipeline between the cooling water treatment device and the economizer (9).
2. The apparatus for reducing energy consumption of a boiler according to claim 1, wherein: cooling water treatment facilities is including filter (4), water softener (6) and header tank (7), filter (4) water softener (6) with header tank (7) are established ties in proper order to boiler plant's position from sodium metasilicate pentahydrate crystallization cooling device's position through the pipeline, filter (4) with be provided with second clear water pump (5) and control valve on the pipeline between water softener (6), just water softener (6) with also be provided with the control valve on the pipeline between header tank (7).
3. The apparatus for reducing energy consumption of a boiler according to claim 2, wherein: a plurality of 'snake-shaped' heat exchange tubes are arranged inside the economizer (9), one ends of the heat exchange tubes are connected with a water inlet tube between the economizer (9) and the boiler (10), and the other ends of the heat exchange tubes are connected with the water collecting tank (7) through a pipeline.
4. The apparatus for reducing energy consumption of a boiler according to claim 1, wherein: and a temperature sensor is arranged on the crystallizing tank (1).
5. The apparatus for reducing energy consumption of a boiler according to claim 2, wherein: the outer wall of the water collecting tank (7) is attached with heat insulation cotton.
CN201921162073.5U 2019-07-23 2019-07-23 Device capable of reducing energy consumption of boiler Active CN210772111U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921162073.5U CN210772111U (en) 2019-07-23 2019-07-23 Device capable of reducing energy consumption of boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921162073.5U CN210772111U (en) 2019-07-23 2019-07-23 Device capable of reducing energy consumption of boiler

Publications (1)

Publication Number Publication Date
CN210772111U true CN210772111U (en) 2020-06-16

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ID=71040986

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921162073.5U Active CN210772111U (en) 2019-07-23 2019-07-23 Device capable of reducing energy consumption of boiler

Country Status (1)

Country Link
CN (1) CN210772111U (en)

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