CN216320627U

CN216320627U - Flue gas collection device suitable for power plant boiler

Info

Publication number: CN216320627U
Application number: CN202122195829.XU
Authority: CN
Inventors: 姬永辉
Original assignee: Linyi Aobote Thermal Power Co ltd
Current assignee: Linyi Aobote Thermal Power Co ltd
Priority date: 2021-09-12
Filing date: 2021-09-12
Publication date: 2022-04-19
Anticipated expiration: 2031-09-12

Abstract

The utility model discloses a flue gas collecting device suitable for a power station boiler, wherein a booster pump is fixedly arranged at the bottom in a box body, an active carbon filter plate is clamped at one end of a first guide pipe, which is far away from the booster pump, an active carbon filter plate is fixedly arranged at the inner wall of the box body, a first flue gas analyzer is fixedly arranged on the inner wall of the box body, the first flue gas analyzer is electrically connected with a flow control assembly, a second flue gas analyzer is fixedly arranged at the inner top of the box body, a collecting assembly used for absorbing purified flue gas is fixedly arranged at the top of the box body, the second flue gas analyzer is electrically connected with the collecting assembly, the device can realize the purification and filtration of the flue gas through the mutual matching of the active carbon filter plate, the flow control assembly and a water tank, can reduce harmful substances in the flue gas, thus can reduce the pollution to the environment, can also prevent the influence on the health of workers, and can carry out the collection after the purification of the flue gas, can prevent the leakage of the smoke.

Description

Flue gas collection device suitable for power plant boiler

Technical Field

The utility model relates to the technical field of power station boilers, in particular to a smoke collecting device suitable for a power station boiler.

Background

So-called utility boilers are, in popular terms, boilers used by power plants to generate electricity. The general capacity is larger, the current main unit is 600MW, the current advanced is an ultra-supercritical boiler, and the capacity can reach 1000 MW. Utility boilers mainly have two types: pulverized coal furnaces and circulating fluidized bed boilers. These two types of boilers are the main types used in power stations today. The biggest differences between fluidized bed furnaces and pulverized coal furnaces are liquid and coal dust.

The utility boiler can produce a large amount of flue gases in the electricity generation process, contains a large amount of harmful gas in these flue gases, and these gases in case directly discharge in the air, will cause the pollution to the environment, and this just needs purify the collection to the flue gas, avoids directly discharging.

But current collection device, most all just collect the back to the flue gas and purify the filtration, cause leaking of flue gas very easily like this, cause the pollution to the environment easily, still be absorbed by the collection workman easily moreover, further harm workman's is healthy.

Therefore, it is necessary to provide a flue gas collecting device suitable for a utility boiler to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a flue gas collecting device suitable for a power station boiler, which can realize the purification and filtration of flue gas through the mutual matching of an activated carbon filter plate, a flow control assembly and a water tank, can reduce harmful substances in the flue gas, thus reducing the pollution to the environment and preventing the influence on the health of workers.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a flue gas collection device suitable for power plant boiler, includes the box, its characterized in that: bottom fixed mounting has the booster pump in the box, the first pipe of booster pump one side fixedly connected with, booster pump one end joint is kept away from to first pipe has the active carbon filter, box inner wall fixed mounting has first flue gas analysis appearance, box inner wall fixed mounting has the baffle, baffle fixed surface installs flow control subassembly and the water tank that is used for controlling flue gas transport flow, first flue gas analysis appearance and flow control subassembly electric connection, flow control subassembly top fixed mounting has the gas-supply pipe, flow control subassembly one end fixed mounting is kept away from in the gas-supply pipe inside the water tank, top fixed mounting has the second flue gas analysis appearance in the box, box top fixed mounting has the collection subassembly that is used for absorbing the flue gas after purifying and the backward flow subassembly that is used for the flue gas backward flow, the second flue gas analysis appearance respectively with collection subassembly, The reflow component is electrically connected.

Preferably, the flow control assembly comprises a hollowed-out casing, a first groove is formed in the hollowed-out casing, a stepping motor is fixedly mounted in the first groove, a rotating shaft is fixedly mounted at an output shaft of the stepping motor, a hollowed-out cover body is fixedly mounted at one end, far away from the stepping motor, of the rotating shaft, a second groove is formed in the hollowed-out casing, and the hollowed-out cover body is rotatably mounted in the second groove.

Preferably, the collecting assembly comprises an air pump, a second guide pipe is fixedly communicated with one side of the air pump, a suction nozzle is fixedly mounted at the inner top of the box body, one end, far away from the air pump, of the second guide pipe penetrates through the suction nozzle fixedly connected with the inner wall of the box body, a third guide pipe is fixedly communicated with the other side of the air pump, and one end, far away from the air pump, of the third guide pipe is fixedly connected with a collecting box.

Preferably, the fixed intercommunication in booster pump one side has the intake pipe, the intake pipe is kept away from booster pump one end and is extended to the box outer wall, the fixed intercommunication in box one side has the blast pipe, fixed mounting has first solenoid valve on the blast pipe, first flue gas analyzer and first solenoid valve electric connection.

Preferably, the backflow component comprises a backflow pipe, one end of the backflow pipe penetrates through the top in the box body, a second electromagnetic valve is fixedly mounted on the backflow pipe, and the other end of the backflow pipe is fixedly connected with the air inlet pipe.

Preferably, the bottom of the activated carbon filter plate is provided with an L-shaped groove, and the top of one end, away from the booster pump, of the first conduit is correspondingly provided with an L-shaped block at the position where the L-shaped groove is formed.

Preferably, the inner wall of the box body is provided with a sliding groove, and the activated carbon filter plate is slidably arranged in the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. the device is matched with the activated carbon filter plate through the booster pump, so that the flue gas can be ensured to always pass through the activated carbon filter plate at a large flow velocity, the efficiency of the primary purification and filtration of the flue gas can be improved, and the conveying speed of the flue gas after the primary purification can be controlled through the flow control assembly;

2. the first smoke detector and the second smoke detector are matched with each other, so that the purified smoke can be monitored, the harmful substances contained in the collected smoke are reduced to the minimum, and the environment protection and the worker protection can be realized;

3. through collecting the subassembly, can realize the seamless collection to the flue gas, can realize the repeated purification filtration to the flue gas through the backward flow subassembly, guarantee the purity of flue gas.

Drawings

FIG. 1 is a schematic sectional front view of the present invention;

FIG. 2 is an enlarged structural diagram A of FIG. 2;

FIG. 3 is an enlarged view of B of FIG. 2;

fig. 4 is a perspective view of a first catheter according to the present invention.

In the figure: 1. a box body; 2. a booster pump; 3. a first conduit; 4. an activated carbon filter plate; 5. a first flue gas analyzer; 6. a partition plate; 7. a flow control assembly; 701. hollowing out the shell; 702. a first groove; 703. a stepping motor; 704. a rotating shaft; 705. hollowing out the cover body; 706. a second groove; 8. a water tank; 9. a gas delivery pipe; 10. a second flue gas analyzer; 11. a collection assembly; 1101. an air pump; 1102. a second conduit; 1103. a suction nozzle; 1104. a third conduit; 1105. a collection box; 12. an air inlet pipe; 13. an exhaust pipe; 14. a first solenoid valve; 15. an L-shaped groove; 16. an L-shaped block; 17. a chute; 18. a reflow assembly; 1801. a return pipe; 1802. a second solenoid valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a flue gas collecting device suitable for a power station boiler comprises a box body 1, a booster pump 2 is fixedly installed at the bottom in the box body 1, the boosting conveying of flue gas is realized through the booster pump 2, a first guide pipe 3 is fixedly connected to one side of the booster pump 2, an activated carbon filter plate 4 is clamped at one end, far away from the booster pump 2, of the first guide pipe 3, the filtering and purifying of harmful substances in the flue gas are realized through the activated carbon filter plate 4, a first flue gas analyzer 5 is fixedly installed on the inner wall of the box body 1, the detection of the purified flue gas is realized through the first flue gas analyzer 5, a partition plate 6 is fixedly installed on the inner wall of the box body 1, a flow control component 7 and a water tank 8 for controlling the conveying flow of the flue gas are fixedly installed on the surface of the partition plate 6, the first flue gas analyzer 5 is electrically connected with the flow control component 7, a gas pipe 9 is fixedly installed at the top of the flow control component 7, one end, far away from the flow control component 7, of the gas pipe 9 is fixedly installed inside the water tank 8, the top fixed mounting has second flue gas analysis appearance 10 in the box 1, and box 1 top fixed mounting has the collection subassembly 11 that is used for absorbing the flue gas after purifying and the backward flow subassembly 18 that is used for the flue gas backward flow, and second flue gas analysis appearance 10 respectively with collection subassembly 11, backward flow subassembly 18 electric connection.

The first flue gas analyzer 5 and the second flue gas analyzer 10 are set as CS995 carbon-sulfur analyzers, and the electrochemical sensors are used for continuously analyzing and measuring the contents of CO2, CO, NOx, SO2 and other flue gases, SO that the mass fractions of carbon and sulfur in steel, iron, alloy, casting core sand, nonferrous metals, cement, ore, coke, catalyst and other materials can be quickly and accurately determined. The device introduces foreign advanced technology, is a high and new technology product integrating light collection, machine, electricity, computer and analysis technology, has the characteristics of wide measurement range, strong anti-interference capability, complete functions, simple and convenient operation, accurate and reliable analysis result and the like, and the first flue gas analyzer 5 and the second flue gas analyzer 10 are both the existing known technology.

Flow control subassembly 7 includes fretwork casing 701, first recess 702 has been seted up inside fretwork casing 701, fixed mounting has step motor 703 in the first recess 702, realize the regulation to the fretwork cover body 705 rotation speed through step motor 703, step motor 703's output shaft fixed mounting has pivot 704, step motor 703 one end fixed mounting is kept away from to pivot 704 has the fretwork cover body 705, second recess 706 has been seted up inside fretwork casing 701, the fretwork cover body 705 rotates and installs in second recess 706, the hole coincidence or the staggering of fretwork casing 701 and the fretwork cover body 705, can realize the control to the flow size that the flue gas was carried.

The collection assembly 11 comprises an air pump 1101, a second guide pipe 1102 is fixedly communicated with one side of the air pump 1101, a suction nozzle 1103 is fixedly mounted at the top of the interior of the box body 1, one end, far away from the air pump 1101, of the second guide pipe 1102 penetrates through the suction nozzle 1103 fixedly connected to the inner wall of the box body 1, a third guide pipe 1104 is fixedly communicated with the other side of the air pump 1101, the suction nozzle 1101, the second guide pipe 1102, the suction nozzle 1103 and the third guide pipe 1104 are matched with each other, absorption and conveying of smoke can be achieved, the third guide pipe 1104 is far away from a collection box 1105 fixedly connected with one end of the air pump 1101, and collection of the smoke is achieved through the collection box 1105.

The fixed intercommunication in 2 one sides of booster pump has intake pipe 12, and 2 one end of booster pump is kept away from to intake pipe 12 extends to 1 outer wall of box, and the fixed intercommunication in 1 one side of box has blast pipe 13, and fixed mounting has first solenoid valve 14 on blast pipe 13, realizes the control to fume emission through first solenoid valve 14, first flue gas analyzer 5 and first solenoid valve 14 electric connection.

The backflow component 18 comprises a backflow pipe 1801, backflow of smoke which is not in accordance with emission standards is achieved through the backflow pipe 1801, one end of the backflow pipe 1801 penetrates through the top of the interior of the box body 1, a second electromagnetic valve 1802 is fixedly mounted on the backflow pipe 1801, control over backflow of smoke is achieved through the second electromagnetic valve 1802, and the other end of the backflow pipe 1801 is fixedly connected with the air inlet pipe 12.

L type groove 15 has been seted up to 4 bottoms of active carbon filter, and first pipe 3 is kept away from 2 one end tops of booster pump and is located L type groove 15 and offers the department and correspond and install L type piece 16, mutually supports through L type groove 15 and L type piece 16, realizes the nimble installation of first pipe 3 and active carbon filter 4.

The inner wall of the box body 1 is provided with a sliding groove 17, the activated carbon filter plate 4 is slidably arranged in the sliding groove 17, and the activated carbon filter plate 4 is detached and replaced through the sliding groove 17.

When the smoke gas purification device is used, a user connects a smoke gas discharge port with a gas inlet pipe 12, then starts a booster pump 2, the booster pump 2 boosts smoke gas, the smoke gas reaches an activated carbon filter plate 4 through a first guide pipe 3, the activated carbon filter plate 4 purifies and filters the smoke gas, then the smoke gas continuously rises, when the smoke gas contacts a first smoke gas analyzer 5, the first smoke gas analyzer 5 analyzes harmful substances in the smoke gas, when the smoke gas reaches a discharge standard, the first smoke gas analyzer 5 controls a first electromagnetic valve 14 to be opened, then the smoke gas is discharged through a gas outlet pipe 13 and enters a collection box 1105, if the smoke gas detected by the first smoke gas analyzer 5 does not accord with the discharge standard, a stepping motor 703 is started, the stepping motor controls a hollow cover body to rotate, the hollow cover body 705 coincides with or is staggered with holes on a hollow shell body 701, so that the smoke gas rises, the smoke gas enters a water tank 8 with a water source through a gas conveying pipe 705, then the flue gas continues rising through the water source, when the flue gas after secondary filtration contacts the second flue gas analyzer 10, the second flue gas analyzer 10 detects the flue gas, if the flue gas meets the emission standard, the second flue gas analyzer 10 controls the air pump 1101 to start, then the flue gas enters the collection box 1105 through the second conduit 1102 and the third conduit 1104, if the flue gas does not meet the emission standard, the second flue gas analyzer 10 controls the second solenoid valve 1802 to start, then the flue gas flows back to the air inlet pipe 12 through the return pipe 1801, and then the filtration is repeated.

In the description of the present application, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to specific circumstances.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flue gas collection device suitable for power plant boiler, includes box (1), its characterized in that: the device is characterized in that a booster pump (2) is fixedly mounted at the bottom in the box body (1), a first guide pipe (3) is fixedly connected to one side of the booster pump (2), the first guide pipe (3) is far away from the booster pump (2), one end of the activated carbon filter plate (4) is clamped, a first flue gas analyzer (5) is fixedly mounted on the inner wall of the box body (1), a partition plate (6) is fixedly mounted on the inner wall of the box body (1), a flow control component (7) and a water tank (8) which are used for controlling flue gas conveying flow are fixedly mounted on the surface of the partition plate (6), the first flue gas analyzer (5) is electrically connected with the flow control component (7), a gas pipe (9) is fixedly mounted at the top of the flow control component (7), the gas pipe (9) is far away from one end of the flow control component (7) and is fixedly mounted inside the water tank (8), and a second flue gas analyzer (10) is fixedly mounted at the top in the box body (1), the top of the box body (1) is fixedly provided with a collecting assembly (11) for absorbing the purified flue gas and a backflow assembly (18) for flue gas backflow, and the second flue gas analyzer (10) is respectively electrically connected with the collecting assembly (11) and the backflow assembly (18).

2. The flue gas collection device suitable for utility boilers of claim 1, characterized in that: flow control subassembly (7) include fretwork casing (701), first recess (702) have been seted up to fretwork casing (701) inside, fixed mounting has step motor (703) in first recess (702), the output shaft fixed mounting of step motor (703) has pivot (704), step motor (703) one end fixed mounting is kept away from in pivot (704) has the fretwork cover body (705), second recess (706) have been seted up to fretwork casing (701) inside, the fretwork cover body (705) rotate to be installed in second recess (706).

3. The flue gas collection device suitable for utility boilers of claim 1, characterized in that: the collecting assembly (11) comprises an air pump (1101), a second guide pipe (1102) is fixedly communicated with one side of the air pump (1101), a suction nozzle (1103) is fixedly installed at the inner top of the box body (1), one end, far away from the air pump (1101), of the second guide pipe (1102) penetrates through the suction nozzle (1103) fixedly connected with the inner wall of the box body (1), a third guide pipe (1104) is fixedly communicated with the other side of the air pump (1101), and the third guide pipe (1104) is far away from one end, fixedly connected with the collecting box (1105) of the air pump (1101).

4. The flue gas collection device suitable for utility boilers of claim 1, characterized in that: the fixed intercommunication in booster pump (2) one side has intake pipe (12), booster pump (2) one end is kept away from in intake pipe (12) and is extended to box (1) outer wall, the fixed intercommunication in box (1) one side has blast pipe (13), fixed mounting has first solenoid valve (14) on blast pipe (13), first flue gas analyzer (5) and first solenoid valve (14) electric connection.

5. The flue gas collection device suitable for utility boilers, according to claim 4, characterized in that: the backflow component (18) comprises a backflow pipe (1801), one end of the backflow pipe (1801) penetrates through the inner top of the box body (1), a second electromagnetic valve (1802) is fixedly mounted on the backflow pipe (1801), and the other end of the backflow pipe (1801) is fixedly connected with the air inlet pipe (12).

6. The flue gas collection device suitable for utility boilers of claim 1, characterized in that: l type groove (15) have been seted up to active carbon filter (4) bottom, first pipe (3) are kept away from booster pump (2) one end top and are located L type groove (15) and set up the department and correspond and install L type piece (16).

7. The flue gas collecting device suitable for utility boilers as claimed in claim 5, wherein: the inner wall of the box body (1) is provided with a sliding groove (17), and the activated carbon filter plate (4) is slidably arranged in the sliding groove (17).