CN205592938U - Wind device is got to forced draught blower - Google Patents

Abstract

The utility model discloses a wind device is got to forced draught blower, wind device is got to forced draught blower includes tuber pipe (1), tuber pipe (1) pass behind the wall body of factory building can with the air intake connection of forced draught blower, tuber pipe (1) is located and has seted up at least one internal management wind gap (2) in the part of factory building, tuber pipe (1) is located and has seted up at least one outer get wind gap (3) in the outer part of factory building, wind device is got to forced draught blower still is provided with the air or the outer air admission of wind gap (3) locating of getting that can prevent internal management wind gap (2) to locate the forced draught blower stop the structure. The utility model provides a wind device is got to forced draught blower can avoid because the interior condition that produces the negative pressure and lead to factory building internal environment variation or corrode the interior equipment of harm factory building of factory building.

Description

Pressure fan takes wind apparatus

Technical field

This utility model relates to field of boilers, in particular it relates to a kind of pressure fan for boiler takes wind dress Put.

Background technology

Along with expanding economy, for the Energy Mix country based on coal, the consumption of coal is continuous Strengthening, the atmospheric pollution therefore caused by coal burning is also on the rise, and nitrogen oxides (NOx) is dirty Dye is one of major pollutants of atmospheric environment.In order to reduce NOx, the realization cleaning combustion that burning produces Burn, prior art have employed low-NO_x combustion technology to control the generation of NOx in combustion process.Low nitrogen Combustion technology is by reducing combustion reaction temperature, reduces excess air coefficient, shortens flue gas in high-temperature region The means such as time of staying reach to control the purpose of NOx.Due to low-NO_x combustion technology technical maturity, throw Money and operating cost are relatively low, have been obtained for being widely applied.Air staged combustion technology is existing rank The low-NO_x combustion technology that Duan Yingyong is wider, its cardinal principle is the combustion process segmentation of fuel to be carried out.Should Technology is that burning wind is divided into First air and secondary wind, it is therefore an objective to reduce the air capacity of fuel combustion zone (First air), improves the fuel concentration of fuel region, postpones First air and the incorporation time of secondary wind, So fuel is the formation of a fuel-rich regions when entering burner hearth, makes fuel carry out anoxia combustion at fuel-rich regions Burn, to reduce the generation of fuel type NOx.The flue gas that anoxycausis produces mixes with secondary wind again, makes Fuel burns completely.

Secondary wind, generally by the hot-air of the individual passage feeding burner hearth of burner, enters ability after burner hearth Gradually with wind facies mixing.The burning offer oxygen that secondary wind is fuel, and the disturbance of air blast can be added, Promote the backflow of high-temperature flue gas, promote the mixing of fuel and oxygen, for offer condition of burning completely.Secondary Wind is typically provided by pressure fan, sends in the individual passage of burner after air preheater heats.Existing The air port that takes of secondary wind pressure fan be arranged at the boiler hot cover of Factory Building, by obtaining at boiler hot cover relatively The air of heat, reduces the energy consumption of air preheater.But when summer, due in boiler Factory Building with outward Portion also exists more communicating passage, when second blower convulsion, negative pressure occurs in making Factory Building, And the dust foreign material outside Factory Building etc. are sucked in Factory Building so that the environment in Factory Building is deteriorated, the most right It is located along the boiler that the boiler of sea region, such as power plant, Suizhong use, outside Factory Building in some In air, salinity is higher, also can make the equipment in Factory Building in air higher for salinity is sucked Factory Building Become certain corrosion-damaged.

Utility model content

The purpose of this utility model is to provide a kind of pressure fan and takes wind apparatus, it is possible to avoid owing to producing in Factory Building Raw negative pressure and in causing Factory Building environment be deteriorated or the situation of equipment in corrosion-damaged Factory Building.

To achieve these goals, this utility model provides a kind of pressure fan to take wind apparatus, described pressure fan Taking wind apparatus and include airduct, described airduct can connect with the air inlet of pressure fan after the body of wall of Factory Building Connecing, described airduct is positioned in the part of Factory Building and offers at least one and take air port, and described airduct is positioned at Offering at least one treatment with external measures air port in part outside Factory Building, described pressure fan takes wind apparatus and is additionally provided with energy The air at air port or the blocking junction of the described pressure fan of entrance of the air at treatment with external measures air port is taken in enough preventions Structure.

Preferably, described barrier structure includes that can take the air at air port in stoping enters described pressure fan The first block piece and air at treatment with external measures air port can be stoped to enter the second block piece of described pressure fan.

Preferably, described first block piece is arranged on described airduct and takes between air port and treatment with external measures air port interior Part on.

Preferably, described first block piece include many be arranged on described in take on air port pin or gear Pipe, many described pins or gear tube side-by-side arrange, with can close described in take air port, described in every Pin or gear Guan Jun be removably attached to described in take on air port.

Preferably, the two ends of described pin or gear pipe respectively can by the first fixture and the second fixture Releasably be fixed on described in take on air port.

Preferably, described first fixture includes fixed mount and is opened on fixed mount for keeping off described in plug-in mounting Bar or the installing hole of gear pipe, described second fixture is identical with described first anchor structure, described gear Contact with each other in bar or gear pipe are inserted into described installing hole and between adjacent described pin or gear pipe, With can close described in take air port.

Preferably, described fixed mount includes channel-section steel, offers elongate holes described to be formed on described channel-section steel Installing hole.

Preferably, the bottom of described channel-section steel is uncovered is all closed by steel plate, to form envelope at both ends open The box body closed, fills heat-preservation cotton in described box body, and described installing hole is through the heat-preservation cotton in described box body With the steel plate of open-mouth bottom described channel-section steel.

Preferably, take air port in described to be arranged at boiler hot cover.

Preferably, described treatment with external measures air port is provided with and takes air port grid, described in take and be provided with on the grid of air port Protection network.Further, described protection network is steel wire.

Preferably, described second block piece is polylith dividing plate, and described polylith dividing plate is removably mounted on institute State on treatment with external measures air port, so that described treatment with external measures air port can be closed.

This utility model is with the difference of prior art, and the pressure fan that this utility model provides takes wind Device is by arranging treatment with external measures air port in the part outside being positioned at Factory Building at airduct, and arranges barrier structure, when When being in winter, stop the cold air at treatment with external measures air port to enter in pressure fan by barrier structure, open simultaneously Taking air port in opening, pressure fan passes through airduct by the interior hot-air suction taken at air port such that it is able to reach fall The purpose of low air preheater energy consumption, and due to during winter Factory Building be substantially at closed state, i.e. with factory Channel connection (in addition to the ventilation unit that Factory Building is arranged) is there is no, even if therefore in Factory Building outside room Negative pressure occurs, also will not the dust foreign material outside Factory Building etc. be sucked in Factory Building such that it is able in ensureing Factory Building Clean environment, and corrosion-damaged in the air that the outer salinity of Factory Building is higher can be avoided to enter Factory Building Equipment；When being in summer, take the air at air port in being stopped by barrier structure, open wide treatment with external measures simultaneously Air port, the air themperature outside summer Factory Building is higher, therefore by pressure fan by the air outside Factory Building Suction, also substantially without the energy consumption of increase air preheater, and owing to being at Factory Building treatment with external measures wind, therefore It can be avoided that negative pressure occurs in Factory Building and air high to outside dust foreign material or salinity is sucked Factory Building In, and pollute power house environment or the situation of corrosion-damaged equipment.Therefore, this utility model provides Pressure fan take wind apparatus it can be avoided that cause environment in Factory Building to be deteriorated owing to producing negative pressure in Factory Building or The situation of equipment in the corrosion-damaged Factory Building of person, and ensure that the economy of steam generator system.

Other features and advantages of the utility model will give in detailed description of the invention part subsequently in detail Explanation.

Accompanying drawing explanation

Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes one of description Point, it is used for explaining this utility model together with detailed description below, but is not intended that this practicality Novel restriction.In the accompanying drawings:

Fig. 1 is that this utility model pressure fan takes wind apparatus and is positioned at the airduct of Factory Building and takes the structure in air port Schematic diagram；

Fig. 2 is the structural representation that this utility model pressure fan takes the treatment with external measures air port of wind apparatus；

Fig. 3 is the structure that this utility model pressure fan takes a kind of embodiment of the first block piece of wind apparatus Schematic diagram；

Fig. 4 is the enlarged drawing in Fig. 3 at A；

Fig. 5 is the front view of Fig. 3；

Fig. 6 is that this utility model pressure fan takes the structural representation being provided with grid at the treatment with external measures air port of wind apparatus Figure；

Fig. 7 is that this utility model pressure fan takes wind apparatus and is provided with the structural representation in two treatment with external measures air ports；

Description of reference numerals

Air port is taken in 1 airduct 2

3 treatment with external measures air port 4 boiler hot covers

5 gear pipe 6 installing holes

7 channel-section steel 8 steel plates

9 grid 10 protection networks

Detailed description of the invention

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It is to be understood that It is that detailed description of the invention described herein is merely to illustrate and explains this utility model, is not used to limit This utility model processed.

In this utility model, in the case of illustrating on the contrary, the noun of locality of use such as " upper and lower, " The pressure fan that typically referring to this utility model provides takes what wind apparatus defined under normal usage, and with Above-below direction shown in accompanying drawing 5 is consistent, and " inside and outside " refers to inside and outside relative to parts own profile. These nouns of locality above-mentioned are for readily appreciating that this utility model uses, thus do not constitute this reality With novel restriction.

Firstly the need of explanation, maintain the circulation of air owing to being provided with in Factory Building and had outside Factory Building The ventilation unit of filter function, when take in only passing through winter air port take wind cause producing negative pressure in Factory Building time, logical Wind apparatus can be alleviated owing to taking negative pressure produced by wind.But when in summer, if being also only to pass through Inside take air port to take wind and cause producing in Factory Building negative pressure, due to the window opened or walkway and ventilation Air-supply in device one Factory Building in the same direction, in therefore causing Factory Building, environment is deteriorated or sets in corrosion-damaged Factory Building Standby situation.

Therefore for the problems referred to above, basic fundamental of the present utility model design is by connecting pressure fan Airduct is positioned at the part of Factory Building and takes air port and treatment with external measures wind with being positioned in the part outside Factory Building to be respectively provided with Mouthful, in and Factory Building low at the outer temperature of Factory Building be substantially at outside Factory Building do not connect time, take air port in only passing through Air (hot-air at such as boiler hot cover) hotter in obtaining Factory Building；Higher at the outer temperature of Factory Building and When there is many places communicating passage (such as People's Bank of China, vehicle driving passage, or the window opened) inside and outside Factory Building, only Wind is taken such that it is able in avoiding causing Factory Building owing to producing negative pressure in Factory Building, environment becomes by treatment with external measures air port The situation of equipment in poor or corrosion-damaged Factory Building, and the energy consumption of air heater can be reduced.At this In technology concept, this utility model pressure fan takes the protection domain of wind apparatus and is not limited to Fig. 1-Fig. 7 Shown specific detail structure, such as, treatment with external measures air port and the interior position taking air port and quantity are permissible Specifically setting according to field working conditions, the first block piece and the position of the second block piece and structure can also use Various ways, these, by the description of detailed description below, incidentally give schematic illustration.

Suitably seeing shown in Fig. 1, Fig. 2, the pressure fan of the basic embodiment that this utility model provides takes Wind apparatus can include airduct 1, and described airduct 1 is through can be with the air intake of pressure fan after the body of wall of Factory Building Mouthful connecting, described airduct 1 is positioned in the part of Factory Building and offers at least one and take air port 2.Described Inside take air port 2 can be arranged at boiler hot cover 4.Described airduct 1 is positioned in the part outside Factory Building to be offered Having at least one treatment with external measures air port 3, described pressure fan takes wind apparatus and is additionally provided with and can take air port 2 in stoping Air at the air at place or treatment with external measures air port 3 enters the barrier structure of described pressure fan.

Wherein, treatment with external measures air port 3 and the interior quantity taking air port 2 can arrange multiple as required, such as, Fig. 2 shows multiple in take air port 2, Fig. 7 shows (right side in Fig. 7, two treatment with external measures air ports 3 Treatment with external measures air port invisible, be represented by dotted lines the most in the figure 7).

Time in the winter time, control barrier structure and stop the cold air at treatment with external measures air port 3 to enter in pressure fan, with Time open wide in take air port 2, pressure fan by airduct 1 by the interior hot-air suction taken at air port 2, thus The purpose of air preheater energy consumption can be reduced；When summer, control to take wind in barrier structure stops Air at mouth 2 enters, and opens wide treatment with external measures air port 3 simultaneously, thus substantially without increasing air preheater Energy consumption, and it can be avoided that pollute power house environment or the situation of corrosion-damaged equipment.

In this utility model, described barrier structure can use various can take in stopping air port 2 or The suitable construction in treatment with external measures air port 3.

Such as, when airduct 1 is by taking the inner tube in air port in connecting, connecting the outer tube in treatment with external measures air port, Yi Jiyu Inner and outer tubes connection with the air that inner tube or outer tube are passed through is transported to the house steward of pressure fan form time, resistance Gear structure can be disposed on inner tube, outer tube and the three-way valve of house steward junction, by controlling three-way valve Door, connects with inner tube such that it is able to realize house steward, or house steward connects with outer tube, to meet outside Factory Building Wind demand is taken when temperature is low or high.Relatively big in view of airduct size, three can be controlled by reducing motor The connected state of logical valve.

So that the layout of airduct 1 is simpler, airduct 1 can be an overall pipeline, now, Described barrier structure takes the air at air port 2 in may be configured to stop and enters the first of described pressure fan Block piece enters the second block piece of described pressure fan with the air that can stop at treatment with external measures air port 3.Now First block piece and the second block piece all can use baffle plate, and baffle plate takes air port 2 in being removably mounted on Or on treatment with external measures air port 3.

Certainly, although the airduct that constituted with an overall pipeline in the above-described embodiment of this utility model As a example by illustrate that barrier structure can include the first block piece and the second block piece, but it is not limited to This utility model.In other embodiments, when airduct 1 is made up of many pipelines, barrier structure is also The first block piece and the second block piece can be included, to control respectively with the second block piece and the second block piece Inside take air port and treatment with external measures air port.

In an embodiment of the present utility model, described first block piece is arranged on described airduct 1 In the interior part taken between air port 2 and treatment with external measures air port 3.The most described first block piece can use lock Plate valve, the second block piece can use the baffle plate being arranged at treatment with external measures air port 3.When needs take air port interior When taking wind at 2, opening the first block piece, the airduct 1 taken in making between air port 2 and treatment with external measures air port 3 is protected Hold unobstructed, control the second block piece simultaneously and close treatment with external measures air port 3；When needs take wind at treatment with external measures air port 3 Time, close the first block piece so that the airduct 1 inside taken between air port 2 and treatment with external measures air port 3 is in blocking-up State, controls the second block piece simultaneously and opens treatment with external measures air port 3.

In a preferred implementation of the present utility model, with reference to shown in Fig. 3-Fig. 5, described first resistance Block piece can include many be arranged on described in take the pin on air port 2 or gear pipe 5, many described gears Bar or gear pipe 5 be arranged side by side, with can close described in take air port 2, every described pin or gear Guan Jun be removably attached to described in take on air port 2.Owing to taking air port 2, treatment with external measures air port in boiler 3 and the size of airduct 1 the biggest, therefore the size of the first block piece is the biggest, logical in this utility model Cross the first block piece is set to the many pins being arranged side by side or gear pipe 5, when mounted or dismounting time Can the operation of one one, such that it is able to reduce the condition controlled required for the first block piece, i.e. when the When one block piece is an overall baffle plate or slide valve, need bigger crane gear or bigger The motor of power (being controlled the opening and closing of flashboard by motor) operation, and the first block piece be many pins or When person keeps off pipe composition, it is possible to use less crane gear or manual operation.In order to reduce behaviour further The difficulty made, the first block piece in present embodiment preferably employs by many seamless steel pipe groups side by side Become.

Those skilled in the art are it is to be understood that the second block piece can also use the many pins being arranged side by side Or the structure of gear pipe.

For the ease of pin or the installation and removal of gear pipe, it is preferable that described pin or the two of gear pipe End respectively by the first fixture and the second fixture be removably attached to described in take on air port 2.

Wherein the first fixture and the second fixture can use and can fix pin or keep off any of pipe Appropriate configuration.

In preferred implementation of the present utility model, as shown in Figure 3, Figure 4, described first fixture Including fixed mount and be opened on fixed mount for pin described in plug-in mounting or gear pipe 5 installing hole 6, institute Stating the second fixture identical with described first anchor structure, described pin or gear pipe 5 are inserted into described Contact with each other in installing hole 6 and between adjacent described pin or gear pipe 5, described interior closing Take air port 2 or treatment with external measures air port 3.

Specifically, described fixed mount includes channel-section steel 7, offers elongate holes to be formed on described channel-section steel 7 Described installing hole 6.In view of the sealing at installing hole 6, when the first block piece uses pin, preferably Using cross section is the pin of rectangle, to be full of installing hole 6 by pin；When the pin being arranged side by side not When can fill full installing hole 6 or use gear pipe 5, can pin in installing hole 6 or gear pipe Between gap fill heat-preservation cotton.Certainly, if when the gear pipe using cross section to be circle or lever, also Can be set to installing hole 6 be made up of, now without filling heat-preservation cotton multiple tangent circular holes side by side.

It is further preferred that the bottom of described channel-section steel 7 is uncovered and is all closed by steel plate 8 at both ends open, To form the box body closed, filling heat-preservation cotton in described box body, described installing hole 6 is through described box body The steel plate of open-mouth bottom interior heat-preservation cotton and described channel-section steel 7.Thus realize the first fixture and second admittedly Insulation at locking member.Higher in view of the ambient temperature residing for the first fixture and the second fixture, described Heat-preservation cotton can use the heat-preservation cotton of existing fireproof high-temperature resistant, as used aluminosilicate refractory fiber to make Heat-preservation cotton.

Owing to treatment with external measures air port 3 is positioned at outside Factory Building, in order to avoid bigger foreign material enter through treatment with external measures air port 3 enter in airduct 1, in an embodiment of the present utility model, as shown in Figure 6, and described treatment with external measures Be provided with on air port 3 and take air port grid 9, as it is shown in fig. 7, described in take be provided with on air port grid 9 anti- Protecting wire net 10, described protection network 10 preferably employs steel wire.

In a preferred embodiment of the invention, as it is shown on figure 3, the second block piece can be polylith dividing plate, Described polylith dividing plate is removably mounted on described treatment with external measures air port 3, can close described treatment with external measures air port 3.The quantity of the dividing plate installed on each treatment with external measures air port 3 in present embodiment is three pieces, certainly, this reality Although executing in mode with three pieces of dividing plates as an example, but it is not limited to this utility model.

In this utility model, it is in time in the winter time or inside and outside Factory Building under the most disconnected operating mode, can To take the pin at air port 2 or the quantity of gear pipe 5 by adjustment in being arranged on, or adjust dividing plate Quantity, it is achieved indoor and outdoor is two-way takes wind, such that it is able to the temperature of the air being adjusted in air-introduced machine, Reach improve the economy of unit and optimize the purpose of fan operation operating mode.

Preferred implementation of the present utility model is described in detail above in association with accompanying drawing, but, this practicality is new Type is not limited to the detail in above-mentioned embodiment, in technology concept of the present utility model, The technical solution of the utility model can be carried out multiple simple variant, these simple variant belong to this reality With novel protection domain.

It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special Levy, in the case of reconcilable, can be combined by any suitable means.In order to avoid need not The repetition wanted, various possible compound modes are illustrated by this utility model the most separately.

Additionally, combination in any can also be carried out between various different embodiment of the present utility model, only Wanting it without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.

Claims (11)

1. pressure fan takes a wind apparatus, and described pressure fan takes wind apparatus and includes airduct (1), described wind Pipe (1) can be connected with the air inlet of pressure fan after the body of wall of Factory Building, and described airduct (1) is positioned at Air port (2) is taken, it is characterised in that described airduct (1) in offering at least one in part in Factory Building Being positioned in the part outside Factory Building and offer at least one treatment with external measures air port (3), described pressure fan takes wind apparatus also The air of the air or treatment with external measures air port (3) place that take air port (2) place in being provided with stoping enters institute State the barrier structure of pressure fan.

Pressure fan the most according to claim 1 takes wind apparatus, it is characterised in that described blocking junction Structure includes the first block piece and the energy that can take the air described pressure fan of entrance at air port (2) place in stoping The air enough stoping treatment with external measures air port (3) place enters the second block piece of described pressure fan.

Pressure fan the most according to claim 2 takes wind apparatus, it is characterised in that described first resistance Block piece is arranged on described airduct (1) and is positioned at the part taken between air port (2) and treatment with external measures air port (3) On.

Pressure fan the most according to claim 2 takes wind apparatus, it is characterised in that described first resistance Block piece include many be arranged on described in take the pin on air port (2) or gear pipe (5), described in many Pin or gear pipe (5) be arranged side by side, with can close described in take air port (2), every described gear Bar or gear Guan Jun be removably attached to described in take on air port (2).

Pressure fan the most according to claim 4 takes wind apparatus, it is characterised in that described pin or Person keep off the two ends of pipe respectively by the first fixture and the second fixture be removably attached to described in take On air port (2).

Pressure fan the most according to claim 5 takes wind apparatus, it is characterised in that described first is solid Locking member includes fixed mount and is opened on fixed mount for pin described in plug-in mounting or the installation of gear pipe (5) Hole (6), described second fixture is identical with described first anchor structure, described pin or gear pipe (5) Contact with each other in being inserted into described installing hole (6) and between adjacent described pin or gear pipe (5), With can close described in take air port (2).

Pressure fan the most according to claim 6 takes wind apparatus, it is characterised in that described fixed mount Including channel-section steel (7), described channel-section steel (7) is offered elongate holes to form described installing hole (6).

Pressure fan the most according to claim 7 takes wind apparatus, it is characterised in that described channel-section steel (7) Bottom is uncovered and all closed by steel plate (8) at both ends open, to form the box body of closing, in institute Filling heat-preservation cotton in stating box body, described installing hole (6) is through the heat-preservation cotton in described box body and described groove The steel plate of steel (7) bottom open-mouth.

Pressure fan the most according to claim 1 takes wind apparatus, it is characterised in that take wind in described Mouth (2) is arranged at boiler hot cover (4) place.

Pressure fan the most according to claim 1 takes wind apparatus, it is characterised in that described treatment with external measures wind Be provided with on mouthful (3) and take air port grid (9), described in take protection network (10) be installed on air port grid (9).

11. pressure fan according to claim 2 take wind apparatus, it is characterised in that described second resistance Block piece is polylith dividing plate, and described polylith dividing plate is removably mounted on described treatment with external measures air port (3), with Described treatment with external measures air port (3) can be closed.