CN208124611U - A kind of boiler heat supplying device preventing low-temperature dew point corrosion - Google Patents
A kind of boiler heat supplying device preventing low-temperature dew point corrosion Download PDFInfo
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- CN208124611U CN208124611U CN201820490462.XU CN201820490462U CN208124611U CN 208124611 U CN208124611 U CN 208124611U CN 201820490462 U CN201820490462 U CN 201820490462U CN 208124611 U CN208124611 U CN 208124611U
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- pipeline
- boiler
- temperature
- water pump
- water
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Abstract
The utility model discloses a kind of boiler heat supplying devices for preventing low-temperature dew point corrosion, including boiler and the heat cycles pipeline being connect with boiler, and the heating cycle pipeline being connect with heat supply pipeline, the heat cycles pipeline includes the pipeline one connecting with boiler water outlet, the pipeline two connecting with boiler blow-down water mouth, and the pipeline three of connecting line one and pipeline two, the fixed water pump one of setting revolving speed on the pipeline two；The heating cycle pipeline includes the pipeline four connecting with heat supply pipeline entrance and the pipeline five with heat supply pipeline outlet connection, is connected between the pipeline four and pipeline five by pipeline three, and the adjustable water pump two of revolving speed is arranged on the pipeline five；Temperature sensor is set at boiler blow-down water mouth position on the pipeline two, the temperature sensor is electrically connected by control device with water pump two, device disclosed in the utility model may insure that boiler blow-down water temperature is higher than dew-point temperature, avoid dew point corrosion, prolonged boiler service life.
Description
Technical field
The utility model relates to boiler preventing corrosion of dew points technical field, in particular to a kind of pot for preventing low-temperature dew point corrosion
Furnace heating plant.
Background technique
Currently, plain cylindrical furnace is in cold operation, and since boiler feed water temperature is too low, heat exchanger surface temperature in the boiler made
It spends lower, is easy to happen dew point corrosion, boiler is affected the use of boiler by seriously corroded, is shortened boiler service life, is caused
Economic loss, while making in the use of boiler that there are security risks.
Utility model content
It is filled in order to solve the above technical problems, the utility model provides a kind of boiler heat supplying for preventing low-temperature dew point corrosion
It sets, ensures that boiler blow-down water temperature is higher than dew-point temperature to reach, avoid the purpose of dew point corrosion.
In order to achieve the above objectives, the technical solution of the utility model is as follows：
A kind of boiler heat supplying device preventing low-temperature dew point corrosion, including boiler and the heat cycles pipe being connect with boiler
Road, and the heating cycle pipeline connecting with heat supply pipeline, the heat cycles pipeline include the pipe connecting with boiler water outlet
The pipeline three of Lu Yi, the pipeline two connecting with boiler blow-down water mouth and connecting line one and pipeline two are arranged on the pipeline two
The fixed water pump one of revolving speed；The heating cycle pipeline includes the pipeline four connecting with heat supply pipeline entrance and says with heating tube
The pipeline five of mouth connection, is connected between the pipeline four and pipeline five by pipeline three, and it is adjustable that revolving speed is arranged on the pipeline five
Water pump two；Temperature sensor is set at boiler blow-down water mouth position on the pipeline two, and the temperature sensor passes through control
Device processed is electrically connected with water pump two.
Through the above technical solutions, the boiler heat supplying device provided by the utility model for preventing low-temperature dew point corrosion is by setting
The temperature for setting the temperature sensor monitoring return water near boiler blow-down water mouth works as return water temperature to adjust the revolving speed of water pump two
When reduction, control two revolving speed of water pump decline, i.e. flow of the flow of heating cycle pipeline less than heat cycles pipeline.At this time from pot
Furnace outflow a part of hot water by the road three with the cold water mix from pipeline five, by the road two and water pump one return to boiler blow-down water
Mouthful.Temperature is lower at boiler blow-down water mouth, and two revolving speed of water pump is lower, by the road three return to boiler hot water it is more, it is ensured that pot
Furnace return water temperature is higher than dew-point temperature, can control boiler feed water temperature at 50 DEG C or more, can be to avoid heat exchanger in boiler
Dew point corrosion.
The device is mainly applied to can be used for flue gas waste heat recovery system on boiler.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Fig. 1 shows for a kind of boiler heat supplying apparatus structure for preventing low-temperature dew point corrosion disclosed in the utility model embodiment
It is intended to.
In figure, 1, boiler；2, heat supply pipeline；3, water outlet；4, pipeline one；5, water return outlet；6, pipeline two；7, pipeline three；
8, water pump one；9, pipeline four；10, pipeline five；11, water pump two；12, temperature sensor；13, control device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
The utility model provides a kind of boiler heat supplying device for preventing low-temperature dew point corrosion, as shown in Figure 1, the device can
To avoid the dew point corrosion of boiler, prolonged boiler service life.
As shown in Figure 1, a kind of boiler heat supplying device for preventing low-temperature dew point corrosion, connect including boiler 1 and with boiler 1
Heat cycles pipeline, and the heating cycle pipeline being connect with heat supply pipeline 2.
The pipeline that heat cycles pipeline includes the pipeline 1 connecting with 1 water outlet 3 of boiler, is connect with 1 water return outlet 5 of boiler
26 and connecting line 1 and pipeline 26 pipeline 37, water pump 1 is set on pipeline 26, and one 8 revolving speed of water pump is according to pot
The specification of furnace 1 is set as fixed value.
Heating cycle pipeline includes the pipeline 49 connecting with 2 entrance of heat supply pipeline and the pipe with the outlet of heat supply pipeline 2 connection
Road 5 10 is connected between pipeline 49 and pipeline 5 10 by pipeline 37, and the adjustable water pump 2 11 of revolving speed is arranged on pipeline 5 10.
Temperature sensor 12 is set at 1 water return outlet of boiler, 5 position on pipeline 26, temperature sensor 12 by control device 13 with
Water pump 2 11 is electrically connected.Temperature sensor 12 measures return water temperature and feeds back feed pump 2 11.
Working principle is as follows：
When temperature sensor 12 monitors that 1 return water temperature of boiler is higher than set temperature, the flow of water pump 2 11 is greater than water
Pump one 8 flow.Water a part in pipeline 5 10 by the road 26 and water pump 1 flow into boiler 1, another part by the road 37
Heat supply pipeline 2 is flowed to through pipeline 49 after mixing with the hot water from pipeline 1.
When temperature sensor 12 monitors 1 return water temperature of boiler lower than set temperature, water is controlled by control device 13
The reduction of 2 11 revolving speeds is pumped, one 8 revolving speed of water pump is constant.When the revolving speed of water pump 2 11 is lower than a certain numerical value, the water outlet of water pump 2 11
Amount is lower than the water yield of water pump 1, i.e. flow of the flow of heating cycle pipeline less than heat cycles pipeline.At this time from boiler 1
Outflow a part of hot water by the road 37 with the cold water mix from pipeline 5 10, by the road 26 and water pump 1 return to boiler 1
Water return outlet.Temperature is lower at 1 water return outlet of boiler, and 2 11 revolving speed of water pump is lower, by the road 37 return to boiler 1 hot water it is more,
Ensure that 1 return water temperature of boiler is higher than dew-point temperature, so as to avoid dew point corrosion.Inlet temperature set point is adjustable in 51-66
℃。
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (1)
1. a kind of boiler heat supplying device for preventing low-temperature dew point corrosion, which is characterized in that is connect including boiler and with boiler adds
Thermal cycle pipeline, and the heating cycle pipeline connecting with heat supply pipeline, the heat cycles pipeline include and boiler water outlet
The pipeline three of the pipeline one of connection, the pipeline two being connect with boiler blow-down water mouth and connecting line one and pipeline two, the pipeline
The fixed water pump 1 of revolving speed is set on two；The heating cycle pipeline include the pipeline four being connect with heat supply pipeline entrance and with confession
The pipeline five of heat pipeline outlet connection, is connected by pipeline three between the pipeline four and pipeline five, is arranged on the pipeline five
The adjustable water pump two of revolving speed；Temperature sensor, the temperature sensing are set at boiler blow-down water mouth position on the pipeline two
Device is electrically connected by control device with water pump two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820490462.XU CN208124611U (en) | 2018-04-08 | 2018-04-08 | A kind of boiler heat supplying device preventing low-temperature dew point corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820490462.XU CN208124611U (en) | 2018-04-08 | 2018-04-08 | A kind of boiler heat supplying device preventing low-temperature dew point corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208124611U true CN208124611U (en) | 2018-11-20 |
Family
ID=64193973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820490462.XU Active CN208124611U (en) | 2018-04-08 | 2018-04-08 | A kind of boiler heat supplying device preventing low-temperature dew point corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208124611U (en) |
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2018
- 2018-04-08 CN CN201820490462.XU patent/CN208124611U/en active Active
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