CN212746535U - Two side pressure supplementing device of flue gas pipeline in power plant - Google Patents

Abstract

The utility model relates to a two side pressure supplementing devices of flue gas pipeline of power plant, including the flue gas pipeline, the flue gas pipeline both sides are equipped with the ponding chamber, the ponding chamber is the volute form, be equipped with the pressure boost impeller in the ponding chamber, be equipped with suction hole and exhaust hole on the ponding chamber respectively, be equipped with inlayer mouth platform on the exhaust hole, the exhaust hole is equipped with outward and changes the board, the lower part of changeing the board is equipped with the pivot, the upper portion of changeing the board is equipped with the extension spring, the one end of extension spring is connected with the interior pore wall hook in exhaust hole, the other end of extension spring is connected with the inboard hook of commentaries on classics board, change the board be equipped with the rank sealed platform all around, rank sealed platform and inlayer mouth. The utility model discloses an install the ponding chamber in vertically flue gas pipeline both sides and can see off the air current pressure boost, guarantee that flue gas pipeline discharges fume extremely smooth and easy, supplementary flue gas pipeline's the supplemental pressure of discharging fume can be adjusted, has saved the consumption of electric energy, guarantees the reinforcing of the smooth and easy rationality of flue gas pipeline discharging fume.

Description

Two side pressure supplementing device of flue gas pipeline in power plant

Technical Field

The utility model belongs to the technical field of mechanical device, in particular to two side pressure compensating device of flue gas pipeline in power plant.

Background

Nowadays, incineration power generation technology is developed relatively rapidly in China. The coal burning incineration power generation is a more traditional power generation technology in China, and along with the continuous attack of technologies such as environmental protection, energy recycling and the like in recent years, the incineration and the like are also key technologies for solving the problems of human waste consumption and energy recycling power generation. In the process of burning type furnace thermal power generation, the burned flue gas can be discharged through a flue gas pipeline and a chimney. In order to reach the environmental standard of flue gas emission, the flue gas can be subjected to dust removal, desulfurization and other treatments in the exhaust process. However, with the environment-friendly flue gas treatment equipment such as a spray tower connected in the flue gas exhaust pipeline, the smoothness of the flue gas exhaust pipeline can be poor, the smoothness of the flue gas exhaust is reduced, and the poor smoothness of the flue gas exhaust can affect the burning effect of the incinerator; in addition, the air current can change along with the change of outdoor weather climate, in order to guarantee smooth and easy smoke exhaust of the outlet of the chimney, the pressure of smoke exhaust in the smoke pipeline also needs to be correspondingly increased, if the air outlet pressure in the smoke pipeline is always larger, not only electric energy is wasted, but also harmful substances mixed with the quick smoke exhaust can be increased to bring harm to the environment, if the air outlet pressure in the smoke pipeline is smaller, the smoke is difficult to be smoothly discharged, the existing smoke pipeline can not change and increase the pressure of the smoke according to the weather condition, the adjustable performance of the air outlet pressure of the smoke pipeline is poor, and the reasonability of the pressure supply of the smoke exhaust is poor.

SUMMERY OF THE UTILITY MODEL

The invention provides a bilateral pressure supplementing device for a flue gas pipeline of a power plant, which aims to solve the technical problems of poor smoothness of smoke discharge and poor regulation performance of smoke discharge pressure of the flue gas pipeline.

The utility model provides a technical scheme that above-mentioned technical problem took is: the utility model provides a two side pressure supplementing device of flue gas pipeline of power plant, a structural feature is characterized in that, including the flue gas pipeline, the flue gas pipeline both sides are equipped with the ponding chamber, the ponding chamber is the volute form, be equipped with pressure boost impeller in the ponding chamber, be equipped with suction hole and exhaust hole on the ponding chamber respectively, be equipped with inlayer mouth platform on the exhaust hole, the exhaust hole is equipped with outward and changes the board, the lower part of changeing the board is equipped with the pivot, the upper portion of changeing the board is equipped with the extension spring, the one end of extension spring is connected with the interior pore wall hook in exhaust hole, the other end and the inboard hook of commentaries on classics board of extension spring are connected, change the board be equipped with the rank sealed platform all around, rank sealed.

Furthermore, a shell is arranged outside the flow accumulation cavity, a motor is arranged on one side of the shell and is in bolted connection with the shell, and a shaft of the motor is in pin connection with the supercharging impeller.

Further, the motor is electrically connected with the controller.

Furthermore, the number of the flow accumulating cavities is two, and the flow accumulating cavities are symmetrically arranged on the smoke pipeline.

Further, the air suction hole is arranged below the air exhaust hole.

Further, the outside of changeing the board is equipped with spacing fender, changes the board and contacts and keep off through spacing when rotatory less than 90 degrees of pivot and spacing, changes the board and lengthens the extension spring around the pivot after rotating.

Further, the lower end of the flue gas pipeline is provided with a first air pressure sensor, the upper end of the flue gas pipeline is provided with a second air pressure sensor, and the first air pressure sensor and the second air pressure sensor are respectively electrically connected with the controller.

The utility model has the advantages that: the utility model can pressurize and send out the airflow through the flow accumulation cavities arranged at the two sides of the vertical flue gas pipeline, thereby ensuring the flue gas pipeline to discharge fume extremely smoothly; in addition, the controller carries out corresponding regulation to the revolution of motor according to the actual data of the first baroceptor and the second baroceptor at both ends about the flue gas pipeline, guarantees that the supplementary pressure of supplementary flue gas pipeline exhaust fume can be adjusted, has saved the consumption of electric energy, can carry out the supplementary pressure of exhausting fume to the flue gas pipeline according to weather simultaneously, guarantees the reinforcing of the smooth and easy rationality of flue gas pipeline exhaust fume.

Drawings

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

fig. 2 is a partially enlarged structural diagram at B of the present invention;

fig. 3 is a schematic view of an embodiment of the present invention at B;

fig. 4 is a left side schematic view of the present invention;

fig. 5 is a schematic view of the partial structure of fig. 4 according to the present invention;

fig. 6 is a schematic diagram of an embodiment of the invention;

fig. 7 is an enlarged partial schematic airflow flow diagram of fig. 6 of the present invention;

in the figure: the gas-liquid separator comprises a gas pipeline 1, a flow accumulating cavity 2, a shell 21, a motor 22, a booster impeller 3, a suction hole 4, an exhaust hole 5, an inner layer opening platform 51, a rotating plate 6, a rotating shaft 61, a tension spring 62, a stage sealing platform 63, a limiting baffle 64, a controller 7, a first air pressure sensor 8 and a second air pressure sensor 9.

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. The components of the embodiments of the present invention, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

As an example, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, and fig. 7, a double-side pressure compensation device for a flue gas duct of a power plant is structurally characterized in that the device includes a flue gas duct 1, the flue gas duct 1 may be a steel structure chimney, the flue gas duct 1 may be bolted to a flange of an environmental protection device for flue gas treatment such as a spray tower, etc., two sides of the flue gas duct 1 may be provided with flow collection chambers 2, the number of the flow collection chambers 2 may be two and may be symmetrically arranged on the flue gas duct 1, the flow collection chambers 2 may be approximately volute-shaped, a casing 21 may be arranged outside the flow collection chambers 2, the casing 21 may be bolted or welded to the flue gas duct 1, one side of the casing 21 may be provided with a motor 22, the motor 22 may be bolted to the casing 21, and in practical applications, a rain shield may be installed above the motor 22. The flow cavity 2 can be internally provided with a booster impeller 3, the booster impeller 3 can be two circular plates which are uniformly provided with inclined blades and welded to form qualified fan blades after plastic spraying, and the shaft of the motor 22 can be inserted into the shaft center of the booster impeller 3 and then connected with the shaft center by pins. The accumulating cavity 2 can be respectively provided with an air suction hole 4 and an exhaust hole 5, the air suction hole 4 can be arranged below the exhaust hole 5, an air inlet of a fan formed by the accumulating cavity 2 and the booster impeller 3 can be communicated with an air suction hole 4 pipeline, an air outlet of the fan formed by the accumulating cavity 2 and the booster impeller 3 can be communicated with an exhaust hole 5 pipeline, and the fan formed by the accumulating cavity 2 and the booster impeller 3 can adopt a preferred fan brand high-temperature-resistant exhaust fan produced by Zhejiang preferred fan limited company. Can be equipped with inlayer mouth platform 51 on the exhaust hole 5, inlayer mouth platform 51 can be the step form of stair, exhaust hole 5 can be equipped with outward changes board 6, it adopts steel blank machining to make to change board 6, the lower part of changeing board 6 can be equipped with pivot 61, it is connected with the terminal surface rotation of exhaust hole 5 through pivot 61 to change board 6, the upper portion of changeing board 6 can be equipped with extension spring 62, extension spring 62's one end can be connected with the interior pore wall hook of exhaust hole 5, extension spring 62's the other end can be connected with the inboard hook of changeing board 6, the inboard of changeing board 6 can be equipped with step sealed platform 63, step sealed platform 63 can adopt integrative mode of making for bellied echelonment and commentaries on classics board 6. The step sealing platform 63 can be in clearance fit with the inner layer opening platform 51, the rotating plate 6 can be inserted into the inner layer opening platform 51 after rotating around the rotating shaft 61, and the rotating plate 6 can form end face shielding type sealing with the inner layer opening platform 51 of the exhaust hole 5 through the step sealing platform 63; the outer side of the rotating plate 6 can be provided with a limit block 64, and the limit block 64 can be bolted with the inner wall of the flue gas pipeline 1; the angle that the board 6 rotated around rotation 61 and opened is less than 90 degrees, can elongate extension spring 62 around rotation 61 after board 6 rotated, and board 6 can keep off 64 contact with spacing and keep off 64 and spacing through spacing fender 64. The flue gas pipeline 1 can be externally provided with a controller 7, and the two motors 22 on the left and right sides of the flue gas pipeline 1 can be respectively electrically connected with the controller 7. The lower end of the flue gas pipeline 1 can be provided with a first air pressure sensor 8, the upper end of the flue gas pipeline 1 can be provided with a second air pressure sensor 9, and the first air pressure sensor 8 and the second air pressure sensor 9 can be respectively electrically connected with the controller 7.

In the embodiment of the present invention, the controller 7 can receive the digital signals of the first air pressure sensor 8 and the second air pressure sensor 9, and the controller 7 controls the two motors 22 to rotate at an increasing speed or a decreasing speed according to the received air pressure signals. When the controller 7 controls the two motors 22 to rotate, as an example, as shown in fig. 2 to 7, the air flow is sucked from the suction hole 4, the air flow is pressurized by the pressurizing impeller 3 in the accumulating chamber 2 to discharge the air flow from the exhaust hole 5, the air flow pushes the rotating plate 6 away when the exhaust hole 5 is discharged, the rotating plate 6 rotates around the rotating shaft 61 to elongate the tension spring 62, the gas discharged from the exhaust hole 5 flows to the upper part of the flue gas pipe 1, and the process of pressurizing and discharging the air flow is realized, the effect of symmetric pressurizing and smoke discharging is excellent, the smoothness of smoke discharging is enhanced, the smoothness of smoke discharging is good, the rotating plate 6 can be limited by the limiting baffle 64 to ensure that the air flow is smoothly discharged from the exhaust hole 5, and when the air flow in the exhaust hole 5 flows out less, the rotating plate 6 can be pulled back by the tension spring 62 to reduce the opening; when the air current is not discharged from the exhaust hole 5, the tension spring 62 pulls the rotating plate 6 to rotate around the rotating shaft 61 to close the exhaust hole 5, so that the rotating plate 6 closes the exhaust hole 5 when the motor 22 is not started, and normal smoke discharge of the smoke pipeline 1 is not influenced.

The utility model can pressurize and send out the airflow through the flow accumulating cavities 2 arranged at the two sides of the vertical flue gas pipeline 1, thereby ensuring the flue gas pipeline 1 to discharge fume extremely smoothly; in addition, the controller 7 can carry out corresponding regulation to the revolution of motor 22 according to the actual data of the first baroceptor 8 and the second baroceptor 9 at both ends about flue gas pipeline 1, guarantee that the supplementary pressure that supplementary flue gas pipeline 1 discharged fume can be adjusted, the air-out pressure's of flue gas pipeline 1 adjustability is better, the consumption of electric energy has been saved, can carry out the supplementary pressure of discharging fume to flue gas pipeline 1 according to weather, guarantee the reinforcing of the smooth and easy rationality of discharging fume of flue gas pipeline 1, the rationality of discharging fume for pressing is better, the good burning effect reinforcing that makes burning furnace burns of the smooth and easy nature of discharging fume.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be dominated by the protection scope of the claims.

Claims (7)

1. The utility model provides a two side pressure compensating device of flue gas pipeline of power plant which characterized in that: including the flue gas pipeline, the flue gas pipeline both sides are equipped with the ponding chamber, the ponding chamber is the volute form, be equipped with pressure boost impeller in the ponding chamber, be equipped with suction hole and exhaust hole on the ponding chamber respectively, be equipped with inlayer mouth platform in the exhaust hole, the exhaust hole is equipped with outward and changes the board, the lower part of changeing the board is equipped with the pivot, the upper portion of changeing the board is equipped with the extension spring, the one end of extension spring is connected with the interior pore wall hook in exhaust hole, the other end and the inboard hook of changeing the board of extension spring are connected, it is equipped with the rank sealed platform to change board all around, rank sealed platform and inlayer mouth platform clearance fit are and insert.

2. The double-side pressure supplementing device for the flue gas pipeline of the power plant according to claim 1, characterized in that: the outside of the flow accumulating cavity is provided with a shell, one side of the shell is provided with a motor, the motor is in bolted connection with the shell, and a shaft of the motor is in pin connection with the supercharging impeller.

3. The double-side pressure supplementing device for the flue gas pipeline of the power plant according to claim 2, characterized in that: the motor is electrically connected with the controller.

4. The double-side pressure supplementing device for the flue gas pipeline of the power plant according to claim 1, characterized in that: the number of the flow accumulating cavities is two, and the flow accumulating cavities are symmetrically arranged on the smoke pipeline.

5. The double-side pressure supplementing device for the flue gas pipeline of the power plant according to claim 1, characterized in that: the air suction hole is arranged below the exhaust hole.

6. The double-side pressure supplementing device for the flue gas pipeline of the power plant according to claim 1, characterized in that: the outside of commentaries on classics board is equipped with spacing fender, changes the board and contacts and keep off through spacing when rotatory less than 90 degrees of pivot and spacing, changes the board and lengthens the extension spring around the pivot after rising.

7. The double-side pressure supplementing device for the flue gas pipeline of the power plant according to claim 1, characterized in that: the lower end of the flue gas pipeline is provided with a first air pressure sensor, the upper end of the flue gas pipeline is provided with a second air pressure sensor, and the first air pressure sensor and the second air pressure sensor are respectively electrically connected with the controller.

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