CN211397982U - Long-life steady operation dust exhausting fan - Google Patents
Long-life steady operation dust exhausting fan Download PDFInfo
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- CN211397982U CN211397982U CN201922116762.9U CN201922116762U CN211397982U CN 211397982 U CN211397982 U CN 211397982U CN 201922116762 U CN201922116762 U CN 201922116762U CN 211397982 U CN211397982 U CN 211397982U
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Abstract
The application discloses long-life steady operation dust exhausting fan, including water supply equipment, four flange ball valves, two pipeline booster pumps, low-speed pneumatic ball valve that washes, wash pneumatic ball valve and fan at a high speed, pipeline booster pump both sides respectively are equipped with a flange ball valve and form a water control pipeline, four flange ball valves and two pipeline booster pumps form two independent water control pipelines altogether, the water supply equipment delivery port falls into two branch roads, link to each other with two independent water control pipelines respectively, the delivery port of two independent water control pipelines links to each other, the moisture through two independent water control pipelines promotion pot pressure becomes two branch roads, the water of one of them branch road links to each other with the water inlet that low-speed washed pneumatic ball valve, the water of another branch road links to each other with the water inlet that high-speed washed pneumatic ball valve, the delivery port that low-speed washed pneumatic ball valve washes by water for the impeller of two dust exhausting fans respectively through the, the water outlet of the high-speed flushing pneumatic ball valve is connected with the fan, and water mist is formed after the speed of the fan is increased, so that the smoke of the two dust removing fans is cooled, and dust in the smoke is settled.
Description
Technical Field
The application belongs to the technical field of dust exhausting fan, in particular to a long-life stable operation dust exhausting fan.
Background
The converter flue gas primary wet dust removal system has the advantages that the flue gas washed by the washing system also contains a certain amount of smoke dust and water drops and higher temperature, when the flue gas passes through the impeller of the primary dust removal fan, the smoke dust and the water drops in the flue gas are easily adsorbed on the impeller, particularly blades at dead corners of a flow field, if the blades cannot be washed in time, the dynamic balance of the impeller is damaged, the vibration is increased during the operation of the impeller, the maintenance workload is large, the production and the safety are unfavorable, and the maintenance cost is increased.
When the existing one-time dust removal fan is originally designed, only the outer surface of the impeller is washed, and the air channel on the inner side of the impeller is not washed, namely the impeller surface which is easy to deposit scale is not washed, so that the scale cannot be washed in time, and the dynamic balance damage of the impeller is reduced.
Disclosure of Invention
The technical problem to be solved is as follows: this application mainly provides a long-life steady operation dust exhausting fan, and the maintenance work volume of solving to exist among the prior art is big, causes unfavorable to production and safety, increases technical problem such as cost of maintenance.
The technical scheme is as follows:
a long-life stable operation dust removal fan comprises a water supply device, four flange ball valves, two pipeline booster pumps, a low-speed flushing pneumatic ball valve, a high-speed flushing pneumatic ball valve and a fan, wherein the two sides of the pipeline booster pumps are respectively provided with a flange ball valve to form a water control pipeline, the four flange ball valves and the two pipeline booster pumps together form two independent water control pipelines, a water outlet of the water supply device is divided into two branches which are respectively connected with the two independent water control pipelines, water of the pressure of a boiler is lifted through the two independent water control pipelines to be divided into two branches, water of one branch is connected with a water inlet of the low-speed flushing pneumatic ball valve, water of the other branch is connected with a water inlet of the high-speed flushing pneumatic ball valve, and water outlets of the low-speed flushing pneumatic ball valves are respectively used for flushing impellers of the two dust removal fans through nozzles, the water outlet of the high-speed flushing pneumatic ball valve is connected with the fan, and water mist is formed after the speed of the fan is increased, so that the smoke of the two dust removing fans is cooled, and dust in the smoke is settled.
As a preferred technical scheme of the application: and the water outlet of the low-speed flushing pneumatic ball valve is used for flushing the impeller large disc and the impeller blades of the two dust removal fans through the nozzles respectively.
As a preferred technical scheme of the application: the air pipe connected with the fan is a DN2000 air pipe.
As a preferred technical scheme of the application: one of the two independent water control pipelines is used daily, and the other water control pipeline is standby when the other water control pipeline needs to be overhauled, so that long-term stability and permission of the equipment are guaranteed.
Has the advantages that: this application long-life steady operation dust exhausting fan compares with prior art more than adopting technical scheme, has following technological effect:
1. the fan impeller is effectively washed in the high-speed and low-speed running process of the fan, and scaling on the impeller is reduced, so that the vibration of the fan is reduced, the maintenance cost and the maintenance workload are effectively reduced, the risk factors are reduced, and the production efficiency is improved;
2. operators check and replace the nozzles according to the water flow every day, so that the vibration of the fan is effectively reduced, the service life of the fan is prolonged, the working efficiency is improved, the maintenance cost is reduced, and potential safety hazards are reduced;
3. the maintenance workload is small, the production and the safety are facilitated, and the maintenance cost is reduced;
4. the scale deposit is washed in time, and the dynamic balance damage of the impeller is reduced.
Drawings
Fig. 1 is the utility model discloses a long-life steady operation dust exhausting fan's schematic structure diagram.
Description of reference numerals: 1. a water supply device; 2. a flange ball valve; 3. a pipeline booster pump; 4. flushing the pneumatic ball valve at a low speed; 5. flushing the pneumatic ball valve at a high speed; 6. a fan.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to explain the advantages of the embodiments and others by reference. The following detailed description of embodiments of the present application is provided in connection with the accompanying drawings.
Example 1
As shown in fig. 1, the long-life stable operation dust-removing fan comprises a water supply device 1, a flange ball valve 2, a pipeline booster pump 3, a low-speed flushing pneumatic ball valve 4, a high-speed flushing pneumatic ball valve 5 and a fan 6, wherein two sides of the pipeline booster pump 3 are respectively provided with a flange ball valve 2 to form a water control pipeline, four flange ball valves 2 and two pipeline booster pumps 3 form two independent water control pipelines together, a water outlet of the water supply device 1 is divided into two branches which are respectively connected with the two independent water control pipelines, water outlets of the two independent water control pipelines are connected, water under the pressure of a lifting pot is divided into two branches through the two independent water control pipelines, water of one branch is connected with a water inlet of the low-speed flushing pneumatic ball valve 4, water of the other branch is connected with a water inlet of the high-speed flushing pneumatic ball valve 5, water outlets of the low-speed flushing pneumatic ball valve 4 are respectively used, the water outlet of the high-speed flushing pneumatic ball valve 5 is connected with the fan 6, and water mist is formed after the speed of the fan 6 is increased, so that the flue gas of the two dust removal fans is cooled, and dust in the flue gas is settled.
In this embodiment, the water outlet of the low-speed flushing pneumatic ball valve 4 is respectively flushed by the impeller large disc and the impeller blades of the two dust removal fans through the nozzles.
In this embodiment, the duct connected to the blower 6 is a DN2000 duct.
In the embodiment, only one of the two independent water control pipelines is used daily, and the other water control pipeline is standby when the other water control pipeline needs to be overhauled, so that long-term stability and permission of the equipment are ensured.
The method for checking the overflow method of the water supply equipment comprises the following steps:
the first step is as follows: the water supply device 1 supplies water into two independent water control pipelines, wherein one water control pipeline is reserved;
the second step is that: when the rotating speed of the dust removal fan is more than or equal to 1400rpm, the high-speed flushing pneumatic ball valve 5 is opened, water mist is sprayed out under the action of the fan 6, so that the flue gas in the dust removal fan is quickly cooled, dust in the flue gas is quickly settled, and the dust with high moisture content does not generate more scales on the fan;
the third step: when the rotating speed of the fan is less than or equal to 500 rpm, the low-speed flushing pneumatic ball valve 4 is opened, water outlets of the low-speed flushing pneumatic ball valve 4 respectively flush impellers of the two dust removal fans through nozzles, water flow is sprayed out, dust of the fans is effectively flushed, and scaling of the fans is reduced;
the fourth step: the nozzle is inspected and replaced by an operator every day according to water flow, so that the vibration of the fan is effectively reduced, the service life of the fan is prolonged, the working efficiency is improved, the maintenance cost is reduced, and the potential safety hazard is reduced.
Example 2
As shown in fig. 1, the long-life stable operation dust-removing fan comprises a water supply device 1, a flange ball valve 2, a pipeline booster pump 3, a low-speed flushing pneumatic ball valve 4, a high-speed flushing pneumatic ball valve 5 and a fan 6, wherein two sides of the pipeline booster pump 3 are respectively provided with a flange ball valve 2 to form a water control pipeline, four flange ball valves 2 and two pipeline booster pumps 3 form two independent water control pipelines together, a water outlet of the water supply device 1 is divided into two branches which are respectively connected with the two independent water control pipelines, water outlets of the two independent water control pipelines are connected, water under the pressure of a lifting pot is divided into two branches through the two independent water control pipelines, water of one branch is connected with a water inlet of the low-speed flushing pneumatic ball valve 4, water of the other branch is connected with a water inlet of the high-speed flushing pneumatic ball valve 5, water outlets of the low-speed flushing pneumatic ball valve 4 are respectively used, the water outlet of the high-speed flushing pneumatic ball valve 5 is connected with the fan 6, and water mist is formed after the speed of the fan 6 is increased, so that the flue gas of the two dust removal fans is cooled, and dust in the flue gas is settled.
In this embodiment, the duct connected to the blower 6 is a DN2000 duct.
In the embodiment, only one of the two independent water control pipelines is used daily, and the other water control pipeline is standby when the other water control pipeline needs to be overhauled, so that long-term stability and permission of the equipment are ensured.
The method for checking the overflow method of the water supply equipment comprises the following steps:
the first step is as follows: the water supply device 1 supplies water into two independent water control pipelines, wherein one water control pipeline is reserved;
the second step is that: when the rotating speed of the dust removal fan is more than or equal to 1400rpm, the high-speed flushing pneumatic ball valve 5 is opened, water mist is sprayed out under the action of the fan 6, so that the flue gas in the dust removal fan is quickly cooled, dust in the flue gas is quickly settled, and the dust with high moisture content does not generate more scales on the fan;
the third step: when the rotating speed of the fan is less than or equal to 500 rpm, the low-speed flushing pneumatic ball valve 4 is opened, water outlets of the low-speed flushing pneumatic ball valve 4 respectively flush impellers of the two dust removal fans through nozzles, water flow is sprayed out, dust of the fans is effectively flushed, and scaling of the fans is reduced;
the fourth step: the nozzle is inspected and replaced by an operator every day according to water flow, so that the vibration of the fan is effectively reduced, the service life of the fan is prolonged, the working efficiency is improved, the maintenance cost is reduced, and the potential safety hazard is reduced.
Example 3
As shown in fig. 1, the long-life stable operation dust-removing fan comprises a water supply device 1, a flange ball valve 2, a pipeline booster pump 3, a low-speed flushing pneumatic ball valve 4, a high-speed flushing pneumatic ball valve 5 and a fan 6, wherein two sides of the pipeline booster pump 3 are respectively provided with a flange ball valve 2 to form a water control pipeline, four flange ball valves 2 and two pipeline booster pumps 3 form two independent water control pipelines together, a water outlet of the water supply device 1 is divided into two branches which are respectively connected with the two independent water control pipelines, water outlets of the two independent water control pipelines are connected, water under the pressure of a lifting pot is divided into two branches through the two independent water control pipelines, water of one branch is connected with a water inlet of the low-speed flushing pneumatic ball valve 4, water of the other branch is connected with a water inlet of the high-speed flushing pneumatic ball valve 5, water outlets of the low-speed flushing pneumatic ball valve 4 are respectively used, the water outlet of the high-speed flushing pneumatic ball valve 5 is connected with the fan 6, and water mist is formed after the speed of the fan 6 is increased, so that the flue gas of the two dust removal fans is cooled, and dust in the flue gas is settled.
In this embodiment, the water outlet of the low-speed flushing pneumatic ball valve 4 is respectively flushed by the impeller large disc and the impeller blades of the two dust removal fans through the nozzles.
In the embodiment, only one of the two independent water control pipelines is used daily, and the other water control pipeline is standby when the other water control pipeline needs to be overhauled, so that long-term stability and permission of the equipment are ensured.
The method for checking the overflow method of the water supply equipment comprises the following steps:
the first step is as follows: the water supply device 1 supplies water into two independent water control pipelines, wherein one water control pipeline is reserved;
the second step is that: when the rotating speed of the dust removal fan is more than or equal to 1400rpm, the high-speed flushing pneumatic ball valve 5 is opened, water mist is sprayed out under the action of the fan 6, so that the flue gas in the dust removal fan is quickly cooled, dust in the flue gas is quickly settled, and the dust with high moisture content does not generate more scales on the fan;
the third step: when the rotating speed of the fan is less than or equal to 500 rpm, the low-speed flushing pneumatic ball valve 4 is opened, water outlets of the low-speed flushing pneumatic ball valve 4 respectively flush impellers of the two dust removal fans through nozzles, water flow is sprayed out, dust of the fans is effectively flushed, and scaling of the fans is reduced;
the fourth step: the nozzle is inspected and replaced by an operator every day according to water flow, so that the vibration of the fan is effectively reduced, the service life of the fan is prolonged, the working efficiency is improved, the maintenance cost is reduced, and the potential safety hazard is reduced.
The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present application, and equivalent alternatives or modifications according to the technical solutions and the application concepts of the present application, which are within the technical scope of the present application.
Claims (4)
1. The utility model provides a long-life steady operation dust exhausting fan which characterized in that: including water supply equipment (1), four flange ball valves (2), two pipeline booster pumps (3), low-speed wash pneumatic ball valve (4), high-speed wash pneumatic ball valve (5) and fan (6), pipeline booster pump (3) both sides respectively are equipped with a flange ball valve (2) and form a accuse water pipeline, four flange ball valves (2) and two pipeline booster pumps (3) form two independent accuse water pipelines altogether, water supply equipment (1) delivery port divide into two branch roads, link to each other with two independent accuse water pipelines respectively, the delivery port of two independent accuse water pipelines links to each other, through two independent accuse water pipelines moisture that promote pot pressure become two branch roads, the water of one of them branch road links to each other with the water inlet that low-speed washed pneumatic ball valve (4), the water of another branch road links to each other with the water inlet that high-speed washed pneumatic ball valve (5), the delivery port that low-speed washed pneumatic ball valve (4) passes through the nozzle and is two dust exhausting fan's impeller bath water respectively and and the water outlet of the high-speed flushing pneumatic ball valve (5) is connected with the fan (6), and water mist is formed after the speed of the fan (6) is increased so that the flue gas of the two dust removing fans is cooled and dust in the flue gas is settled.
2. The long life stably operating dust exhausting fan of claim 1, wherein: and the water outlet of the low-speed flushing pneumatic ball valve (4) is used for flushing the impeller large disc and the impeller blades of the two dust removal fans through the nozzles respectively.
3. The long life stably operating dust exhausting fan of claim 2, wherein: and the air pipe connected with the fan (6) is a DN2000 air pipe.
4. The long life stably operating dust exhausting fan of claim 1, wherein: one of the two independent water control pipelines is used daily, and the other water control pipeline is standby when the other water control pipeline needs to be overhauled, so that long-term stability and permission of the equipment are guaranteed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922116762.9U CN211397982U (en) | 2019-12-02 | 2019-12-02 | Long-life steady operation dust exhausting fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922116762.9U CN211397982U (en) | 2019-12-02 | 2019-12-02 | Long-life steady operation dust exhausting fan |
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| Publication Number | Publication Date |
|---|---|
| CN211397982U true CN211397982U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922116762.9U Active CN211397982U (en) | 2019-12-02 | 2019-12-02 | Long-life steady operation dust exhausting fan |
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| CN (1) | CN211397982U (en) |
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