CN117145785B - High-temperature explosion-proof leakage-free centrifugal fan - Google Patents
High-temperature explosion-proof leakage-free centrifugal fan Download PDFInfo
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- CN117145785B CN117145785B CN202311433555.0A CN202311433555A CN117145785B CN 117145785 B CN117145785 B CN 117145785B CN 202311433555 A CN202311433555 A CN 202311433555A CN 117145785 B CN117145785 B CN 117145785B
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- 238000007789 sealing Methods 0.000 claims abstract description 63
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 10
- 238000001514 detection method Methods 0.000 abstract description 9
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 6
- 239000010935 stainless steel Substances 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 62
- 238000001179 sorption measurement Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
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- 239000011148 porous material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 3
- 239000002341 toxic gas Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
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- 239000003463 adsorbent Substances 0.000 description 1
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- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
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- 230000002588 toxic effect Effects 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a high-temperature explosion-proof leakage-free centrifugal fan, which relates to the technical field of fan equipment and comprises the following components: the fan comprises a fan shell and a bearing table, wherein an air outlet is formed in the top of the fan shell, and the fan shell is fixedly arranged on one side of the bearing table; and the monitoring assembly comprises a detection box. This high temperature explosion-proof does not have leakage centrifugal fan, when using, fan housing adopts stainless steel material to make, can prevent that outside fire from getting into inside the fan, with the risk of reduction explosion, stainless steel material has good corrosion resistance and high temperature performance, can enough carry high temperature gas, can carry harmful gas again, when carrying out the operation of induced drafting, through starting motor, make its output shaft drive the pivot and rotate, the pivot rotates in the I-axis, when rotating, the sealing washer just is inlayed inside the seal groove, the setting of a plurality of sealing washer can avoid gaseous leakage effectively.
Description
Technical Field
The invention relates to the technical field of fan equipment, in particular to a high-temperature explosion-proof leakage-free centrifugal fan.
Background
The centrifugal fan is a common fan type, the working principle is that air flow is generated through a rotating impeller, the air flow is sucked from the center, then the air flow is accelerated through the rotation of the impeller and is discharged, the name of the centrifugal fan is from the centrifugal force formed by the air flow around the impeller, the high-temperature explosion-proof fan can operate in a high-temperature environment and has an explosion-proof function, the high-temperature explosion-proof fan can effectively treat high-temperature air or steam, fire or explosion cannot be caused, the leakage-free fan adopts a special sealing design, the internal air cannot leak into the environment, the high-temperature explosion-proof fan is very important for occasions of treating toxic or harmful air, and the safety of workers can be protected.
In the prior art, as disclosed in Chinese patent publication No.: in CN112943643A, a centrifugal fan is disclosed, and comprises a volute, an impeller and an annular fixing strip, wherein the annular fixing strip is arranged around the impeller and is fixedly connected with the top of the outer edge of a blade, and the root of the inner edge of the blade is fixedly connected with a wheel disc; a circle of boss which is arranged around the impeller is fixed on the inner wall of the same side of the volute and the air inlet, and a gap is reserved between the boss and the outer edge of the impeller. The invention increases the backflow resistance from the impeller outlet to the inlet, and can effectively prevent the air pressure leakage at the gap between the centrifugal fan impeller and the volute; the invention can effectively improve the air output and the air output pressure of the centrifugal fan and improve the working efficiency and the working quality of the centrifugal fan under the condition of ensuring the effective working area of the impeller.
In the prior art, the function of the centrifugal fan in operation is to suck gas and accelerate and discharge the gas, when the high-temperature gas needs to be treated, the explosion-proof function of the centrifugal fan needs to be utilized, and leakage of the centrifugal fan needs to be prevented when harmful gas is treated, however, the existing leakage-proof centrifugal fan only strengthens the leakage-proof function, when leakage occurs, the leakage cannot be found timely, and the harmful gas enters the working environment and can cause harm to the environment and human body.
So we propose a high temperature explosion proof leak free centrifugal fan to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a high-temperature explosion-proof leakage-free centrifugal fan, which aims to solve the problems that the conventional leakage-proof centrifugal fan provided by the background technology only enhances the leakage-proof function, and when leakage occurs, harmful gas cannot be timely found out, and the harmful gas enters the working environment and can cause harm to the environment and human body.
In order to achieve the above purpose, the present invention provides the following technical solutions: a high temperature explosion proof no leakage centrifugal fan comprising: the fan comprises a fan shell and a bearing table, wherein an air outlet is formed in the top of the fan shell, and the fan shell is fixedly arranged on one side of the bearing table; the monitoring assembly comprises a detection box, the rear surface at the fan shell is installed to the detection box, the inside of detection box is provided with the adsorption bag, the fixed intercommunication of surface of detection box has communicating pipe, the fixed intercommunication of one end of communicating pipe has the collecting pipe, the top of plummer is close to edge fixedly connected with dead lever, the surface of dead lever is close to two locating levers of top fixedly connected with, two the cover is equipped with harmful gas detector between the surface of locating lever, harmful gas detector's operation end is inserted and is established in the inside of collecting pipe, fixedly connected with strengthens the sloping block between the surface of dead lever and the top of plummer.
Preferably, the bottom of plummer is close to four corners and all is welded the bracing piece, four the welding has fixed foot rest between the bottom of bracing piece.
Preferably, the outer surface of the fan housing is fixedly provided with a cooling component, the cooling component comprises a plurality of radiating fins, a cooling pipe is embedded between the outer surfaces of the radiating fins, one end of the cooling pipe is fixedly provided with an input interface, and the other end of the cooling pipe is fixedly provided with an output interface.
Preferably, the inner wall of the fan housing is close to the middle part and fixedly provided with an inner clamping ring, the inner wall of the fan housing is close to the outer side and fixedly provided with an outer clamping ring, the front surface of the fan housing is provided with a fixing groove, and one side of the fixing groove is provided with an air inlet.
Preferably, the inner wall of the fixed slot is fixedly provided with a protection annular plate through bolts, the inner wall of the protection annular plate is fixedly provided with an installation bucket plate through bolts, and a protection net is fixedly connected between the inner walls of the installation bucket plates.
Preferably, the back surface of fan housing has seted up the commentaries on classics hole, the inner wall fixed block in commentaries on classics hole has the I-shaped axle, the inner wall rotation of I-shaped axle is connected with the pivot, the one end fixedly connected with connecting plate of pivot, the protective sheath is installed to one side of connecting plate, connecting plate and protective sheath all set up the inside at the fan housing.
Preferably, a plurality of sealing rings are fixed on the inner wall of the I-shaped shaft, a plurality of sealing grooves are formed in the outer surface of the rotating shaft, and the outer surfaces of the sealing rings are matched with the inner walls of the sealing grooves respectively.
Preferably, a reinforced sealing outer ring is fixed on one side of the I-shaped shaft, a reinforced sealing inner ring is fixed on the other side of the I-shaped shaft, the inner wall of the reinforced sealing outer ring and the inner wall of the reinforced sealing inner ring are both in contact with the outer surface of the rotating shaft, a motor is arranged at the top of the bearing table, and an output shaft of the motor is fixedly connected with the other end of the rotating shaft.
Preferably, the inside of fan shell is provided with centrifugal subassembly, centrifugal subassembly is including first closure plate, first closure plate sets up between the surface of connecting plate and protective sheath, one side fixed mounting of first closure plate has spacing swivel, spacing swivel rotates between inner snap ring and outer snap ring.
Preferably, a plurality of impellers are fixedly connected to the other side of the first sealing plate, a plurality of second sealing plates are fixedly connected between the outer surfaces of the impellers, a plurality of connecting rods are fixedly connected to the inner wall of each second sealing plate, a rotary drum is fixedly connected between one ends of the connecting rods, and rotary blades are welded on the inner wall of each rotary drum.
Compared with the prior art, the invention has the beneficial effects that:
1. when the novel high-temperature-resistant air blower is used, the blower housing is made of stainless steel materials, an external fire source can be prevented from entering the blower, so that the risk of explosion is reduced, the stainless steel materials have good corrosion resistance and high-temperature performance, high-temperature air can be conveyed, harmful air can be conveyed, when the novel high-temperature-resistant air blower is in induced draft operation, the output shaft of the novel high-temperature-resistant air blower drives the rotating shaft to rotate, the rotating shaft rotates in the I-shaped shaft, the sealing rings are just embedded in the sealing grooves during rotation, the plurality of sealing rings can be effectively prevented from leaking air due to the setting, the sealing performance is enhanced, the air leakage is effectively prevented, the sealing outer ring and the sealing inner ring are in full contact with the outer wall of the rotating shaft through the reinforcing, the sealing outer ring and the sealing inner ring are symmetrically arranged, the arc is inclined, and the air is difficult to drill between the I-shaped shaft and the rotating shaft through the contact surface.
2. When the fan is used, the first sealing plate is driven to rotate when the rotating shaft rotates, the impeller can be rotated by driving the first sealing plate to rotate, the formed rotating airflow is high in speed under the high-speed rotation of the impeller, the air flow rate inside the fan shell is high, the air pressure is low, the air flow rate outside the fan shell is low, the air pressure is high, the air at the air inlet can be quickly sucked into the inside of the fan shell, the air is continuously rotated by the impeller, and is discharged along the inner wall of the fan shell at the air outlet, at the moment, the rotating drum and the rotating blade are continuously rotated through the first sealing plate, the second sealing plate and the impeller, the air at the air inlet is firstly absorbed by the rotating blade and then conveyed through the impeller, and the double air supply can enhance the air force, so that the processing efficiency of the centrifugal fan on the air is effectively improved.
3. When the detecting box is used, the detecting box is arranged at the rotating position of the rotating shaft, the contact area between the rotating shaft and the I-shaped shaft as well as the fan shell is covered, if harmful gas leaks, the harmful gas can be timely adsorbed by the adsorption bag, the harmful gas is prevented from entering the environment or being inhaled into the body by people, however, when the harmful gas leaks in a large amount, the harmful gas enters the collecting pipe through the communicating pipe, the communicating pipe is arranged in a multi-path manner, the multi-angle ventilation of the detecting box can be realized, the harmful gas detector detects the gas in the collecting pipe, an alarm can be generated when the harmful gas is detected, the action of workers is reminded, the gas treatment work can be timely stopped, and the harmful gas can be prevented from being inhaled by the human body at the first time.
4. When in use, the protection annular plate is mounted on the fixing groove by bolts, and the mounting bucket plate is fixed on the protection annular plate by bolts, so that the protection net is mounted, the protection net is of a net-shaped structure, the protection net has the advantage of blocking external impurities on the premise of not affecting air suction, and the protection effect on the centrifugal fan is achieved.
Drawings
FIG. 1 is a front perspective view of a high temperature explosion-proof leakage-free centrifugal fan of the present invention;
FIG. 2 is a rear perspective view of a high temperature explosion-proof leakage-free centrifugal fan of the present invention;
FIG. 3 is an expanded perspective view of a protection net part structure of the high-temperature explosion-proof leakage-free centrifugal fan;
FIG. 4 is a perspective view, partially in section, of a blower housing of a high temperature explosion-proof leak-free centrifugal blower of the present invention;
FIG. 5 is an expanded cross-sectional perspective view of a blower housing portion of a high temperature explosion-proof leak-free centrifugal blower of the present invention;
FIG. 6 is a partially developed perspective view of the shaft of a high temperature explosion-proof leakage-free centrifugal fan according to the present invention;
FIG. 7 is a partial perspective view of a centrifugal assembly of a high temperature explosion-proof leak-free centrifugal fan of the present invention;
FIG. 8 is a partially expanded rear perspective view of a monitoring assembly of the high temperature explosion-proof leakage-free centrifugal fan of the present invention;
FIG. 9 is a partially developed cross-sectional perspective view of a monitoring assembly of a high temperature explosion-proof leakage-free centrifugal fan of the present invention.
In the figure:
1. a cooling component; 101. a heat radiation fin; 102. a cooling pipe; 103. an input interface; 104. an output interface; 2. a centrifuge assembly; 201. a first closure plate; 202. a limiting swivel; 203. an impeller; 204. a protective sleeve; 205. a second closure plate; 206. a connecting rod; 207. a rotating drum; 208. rotating the blades; 3. a monitoring component; 301. a fixed rod; 302. a detection box; 303. an adsorption bag; 304. a communicating pipe; 305. a manifold; 306. a positioning rod; 307. a harmful gas detector; 308. reinforcing the oblique block; 4. a blower housing; 5. an air outlet; 6. a protective ring plate; 7. mounting a bucket plate; 8. a protective net; 9. a motor; 10. a carrying platform; 11. a support rod; 12. fixing the foot rest; 13. a fixing groove; 14. an inner snap ring; 15. an outer snap ring; 16. a connecting plate; 17. an I-shaped shaft; 18. a seal ring; 19. reinforcing the seal outer ring; 20. reinforcing the seal inner ring; 21. sealing grooves; 22. a rotating shaft; 23. and (5) rotating the hole.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: a high temperature explosion proof no leakage centrifugal fan comprising: the air conditioner comprises a fan shell 4 and a bearing table 10, wherein an air outlet 5 is formed in the top of the fan shell 4, and the fan shell 4 is fixedly arranged on one side of the bearing table 10; the monitoring assembly 3, the monitoring assembly 3 is including detecting the box 302, detect the rear surface that the box 302 installs at fan housing 4, detect the inside of box 302 and be provided with the adsorption bag 303, detect the fixed intercommunication of surface of box 302 and have communicating pipe 304, communicating pipe 304's one end fixed intercommunication has manifold 305, the top of plummer 10 is close to edge fixedly connected with dead lever 301, the surface of dead lever 301 is close to top department fixedly connected with two locating lever 306, the cover is equipped with harmful gas detector 307 between the surface of two locating lever 306, the operation end of harmful gas detector 307 is inserted and is established in the inside of manifold 305, fixedly connected with between the surface of dead lever 301 and the top of plummer 10 strengthens sloping block 308.
As shown in fig. 1 and 2, the bottom of the loading platform 10 is welded with supporting rods 11 near four corners, a fixed foot stand 12 is welded between the bottom ends of the four supporting rods 11, the loading platform 10 is erected by the four supporting rods 11 at this time, the fan housing 4 installed on the loading platform 10 can be supported for operation, and the connection of the bottom is completed through the fixed foot stand 12.
As shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the outer surface of the fan housing 4 is fixed with a cooling component 1, the cooling component 1 comprises a plurality of cooling fins 101, a cooling pipe 102 is embedded between the outer surfaces of the cooling fins 101, one end of the cooling pipe 102 is fixedly provided with an input interface 103, the other end of the cooling pipe 102 is fixedly provided with an output interface 104, when the temperature of the conveyed gas is too high, heat dissipation and cooling can be performed through the cooling fins 101, the inner explosion of the fan housing 4 is prevented, the input interface 103 is connected with a water pump, and the output interface 104 is connected with a drain pipe, so that cold water continuously flows through the cooling pipe 102, and the cooling and explosion-proof effects are achieved.
As shown in fig. 3 and 5, an inner clamping ring 14 is fixedly mounted on the inner wall of the fan housing 4 near the middle, an outer clamping ring 15 is fixedly mounted on the inner wall of the fan housing 4 near the outer side, a fixing groove 13 is formed in the front surface of the fan housing 4, an air inlet is formed in one side of the fixing groove 13, a rotating groove can be formed through the fixing of the inner clamping ring 14 and the outer clamping ring 15, and the fixing groove 13 is formed to facilitate the installation of the protection ring plate 6.
As shown in fig. 1 and 3, the inner wall of the fixing groove 13 is fixedly provided with the protection annular plate 6 through bolts, the inner wall of the protection annular plate 6 is fixedly provided with the installation bucket plate 7 through bolts, the protection net 8 is fixedly connected between the inner walls of the installation bucket plates 7, the protection annular plate 6 is installed on the fixing groove 13 through bolts, the installation bucket plate 7 is fixed on the protection annular plate 6 through bolts, and therefore the protection net 8 is installed, the protection net 8 is of a net-shaped structure, has the benefit of blocking external impurities on the premise of not affecting air suction, and has a protection effect on the centrifugal fan.
As shown in fig. 5, 6 and 7, the rear surface of the fan housing 4 is provided with a rotating hole 23, an i-shaft 17 is fixedly clamped on the inner wall of the rotating hole 23, a rotating shaft 22 is rotatably connected on the inner wall of the i-shaft 17, one end of the rotating shaft 22 is fixedly connected with a connecting plate 16, a protecting sleeve 204 is installed on one side of the connecting plate 16, the connecting plate 16 and the protecting sleeve 204 are both arranged in the fan housing 4, the centrifugal assembly 2 is installed in the fan housing 4, the i-shaft 17 is clamped in the rotating hole 23, and the connecting plate 16 and the protecting sleeve 204 clamp the first sealing plate 201 in the middle and are connected by using a plurality of bolts.
As shown in fig. 6, the inner wall of the i-shaft 17 is fixed with a plurality of sealing rings 18, the outer surface of the rotating shaft 22 is provided with a plurality of sealing grooves 21, the outer surfaces of the plurality of sealing rings 18 are respectively matched with the inner walls of the plurality of sealing grooves 21, the sealing rings 18 are just embedded in the sealing grooves 21, the plurality of sealing rings 18 can be set to effectively avoid gas leakage, the sealing performance is enhanced, and in order to more effectively prevent gas leakage.
As shown in fig. 2, 5 and 6, a reinforced seal outer ring 19 is fixed on one side of the i-shaped shaft 17, a reinforced seal inner ring 20 is fixed on the other side of the i-shaped shaft 17, the inner wall of the reinforced seal outer ring 19 and the inner wall of the reinforced seal inner ring 20 are both in contact with the outer surface of the rotating shaft 22, a motor 9 is arranged at the top of the bearing table 10, an output shaft of the motor 9 is fixedly connected with the other end of the rotating shaft 22, the reinforced seal outer ring 19 and the reinforced seal inner ring 20 are in full contact with the outer wall of the rotating shaft 22 through the reinforced seal outer ring 19 and the reinforced seal inner ring 20, the reinforced seal outer ring 19 and the reinforced seal inner ring 20 are symmetrically arranged and have inclined radians, gas is difficult to drill between the i-shaped shaft 17 and the rotating shaft 22 through contact surfaces, and the sealing ring 18, the reinforced seal outer ring 19 and the reinforced seal inner ring 20 are made of special sealing materials suitable for high-temperature and high-pressure environments.
As shown in fig. 4, 5 and 7, the centrifugal assembly 2 is disposed in the fan housing 4, the centrifugal assembly 2 includes a first sealing plate 201, the first sealing plate 201 is disposed between the connecting plate 16 and the outer surface of the protective sleeve 204, a limiting rotating ring 202 is fixedly mounted on one side of the first sealing plate 201, the limiting rotating ring 202 rotates between the inner clamping ring 14 and the outer clamping ring 15, and the limiting rotating ring 202 rotates between the inner clamping ring 14 and the outer clamping ring 15 in a limiting manner, so that the position of the limiting rotating ring 202 can be limited, and the first sealing plate 201 is more stable during rotation.
As shown in fig. 4, fig. 5 and fig. 7, the other side of the first sealing plate 201 is fixedly connected with a plurality of impellers 203, a second sealing plate 205 is fixedly connected between the outer surfaces of the plurality of impellers 203, the inner wall of the second sealing plate 205 is fixedly connected with a plurality of connecting rods 206, a rotary drum 207 is fixedly connected between one ends of the plurality of connecting rods 206, rotating blades 208 are welded on the inner wall of the rotary drum 207, the rotary drum 207 is installed through the plurality of connecting rods 206, the rotating blades 208 in a spiral state are fixed inside the rotary drum 207, when the first sealing plate 201, the second sealing plate 205 and the impellers 203 continuously rotate, the rotary drum 207 can be driven to rotate simultaneously, so that the rotating blades 208 rotate, gas at the air inlet is conveyed through the impellers 203 after being absorbed by the rotating blades 208, and the double air supply can enhance the wind force, so that the processing efficiency of the centrifugal fan on the gas is effectively improved.
The application method and the working principle of the device are as follows: when in use, the protection ring plate 6 is arranged on the fixing groove 13 by bolts, the installation bucket plate 7 is fixed on the protection ring plate 6 by bolts, thereby completing the installation of the protection net 8, the protection net 8 is of a net-shaped structure, having the advantage of blocking external impurities on the premise of not influencing air suction, protecting the centrifugal fan, after the installation is completed, the fan housing 4 is fixed on the bearing table 10, at the moment, the bearing table 10 is erected by the four supporting rods 11, the fan housing 4 arranged on the bearing table 10 can be supported for operation, the fan housing 4 is made of explosion-proof materials, external fire sources can be prevented from entering the inside of the fan, the explosion risk is reduced, the adopted explosion-proof materials are stainless steel, the stainless steel materials have good corrosion resistance and high temperature performance, can convey high-temperature gas and harmful gas, when the temperature of the conveyed gas is too high, the heat dissipation and the temperature reduction can be carried out through the heat dissipation fins 101 to prevent the explosion inside the fan shell 4, the input interface 103 is connected with the water pump, the output interface 104 is connected with the water drain pipe, so that cold water continuously flows through the cooling pipe 102 to play a role of temperature reduction and explosion prevention, the centrifugal assembly 2 is arranged inside the fan shell 4, the I-shaped shaft 17 is clamped in the rotating hole 23, the connecting plate 16 and the protective sleeve 204 clamp the first sealing plate 201 in the middle and are connected through a plurality of bolts, when in induced draft operation, the motor 9 is started to enable the output shaft of the motor 9 to rotate in an electrified state, the output shaft rotates to drive the rotating shaft 22 to rotate, the rotating shaft 22 rotates inside the I-shaped shaft 17, the sealing ring 18 is just embedded inside the sealing groove 21 during rotation, the setting of the sealing rings 18 can effectively avoid gas leakage, in order to enhance the tightness and prevent the gas leakage more effectively, the reinforced seal outer ring 19 and the reinforced seal inner ring 20 are symmetrically arranged by fully contacting the outer wall of the rotating shaft 22, and the reinforced seal outer ring 19 and the reinforced seal inner ring 20 have inclined radians, the gas is difficult to drill between the I-shaped shaft 17 and the rotating shaft 22 through the contact surface, the sealing ring 18, the reinforced seal outer ring 19 and the reinforced seal inner ring 20 are all made of special sealing materials suitable for high-temperature and high-pressure environments, high-temperature fluororubber is selected to prevent the gas leakage effectively, the first sealing plate 201 is driven to rotate when the rotating shaft 22 rotates, the impellers 203 can rotate by driving the first sealing plate 201 to rotate due to the fact that the first sealing plate 201 and the second sealing plate 205 are fixed at two side positions of the impellers 203, the formed rotating airflow speed is high under the high-speed rotation of the impellers 203, according to Bernoulli principle, the air flow rate inside the fan housing 4 is high, the air pressure is low, the air flow rate outside the fan housing 4 is low, the air pressure is high, so the air at the air inlet can be quickly sucked into the inside of the fan housing 4, and is discharged along the inner wall of the fan housing 4 and at the air outlet 5 under the continuous rotation of the impeller 203, at this time, the rotating blades 208 which are arranged in a spiral state are fixed in the rotating drum 207 by using a plurality of connecting rods 206, when the first closing plate 201, the second closing plate 205 and the impeller 203 continuously rotate, the rotating drum 207 is driven to rotate simultaneously, the air at the air inlet is firstly absorbed by the rotating blades 208 and then conveyed by the impeller 203, the double air supply can enhance the wind power, the processing efficiency of the centrifugal fan on the air is effectively improved, when harmful gas is treated, leakage can cause negative effects on human body and environment, at the moment, through installing the detection box 302 at the rotating position of the rotating shaft 22, the contact area between the rotating shaft 22 and the I-shaped shaft 17 and between the detection box and the fan shell 4 is covered, if harmful gas leaks, the harmful gas can be timely absorbed by the absorption bag 303, the harmful gas is prevented from being carried out into the environment or inhaled by a human body, however, when the leakage amount of the harmful gas is large, the harmful gas enters the collecting pipe 305 through the communicating pipe 304, wherein the communicating pipe 304 is in multi-path arrangement, multi-angle ventilation of the detection box 302 can be realized, an alarm can be generated when the harmful gas is detected through the harmful gas detector 307, and the working personnel can be reminded of stopping the gas treatment in time, so that the harmful gas can be prevented from being inhaled by the human body in the first time, the harmful gas detector 307 can be conveniently supported by the fixing rod 306 which can be inserted into the installation hole of the harmful gas detector 307, and the fixing rod 301 can conveniently support the harmful gas detector 307 to the collecting pipe 305, and the inclined supporting rod 308 can be conveniently supported by the inclined supporting the harmful gas detector 305, and the inclined supporting rod 308 can be reinforced by the inclined supporting the collecting pipe 308;
wherein, when the centrifugal fan is used for absorbing harmful gases, the selection of the adsorbent in the adsorption bag 303 is determined according to the working environment of the centrifugal fan, if some toxic gases such as benzene, formaldehyde, ammonia gas and the like are absorbed, activated carbon is selected, the activated carbon is an adsorption material with a high pore structure and can adsorb various gases and organic compounds, if some toxic gases such as sulfur dioxide, chlorine gas and the like are absorbed, molecular sieve is selected, molecular sieve is a material with a regular pore structure and can selectively adsorb some specific molecules, common molecular sieve is zeolite, aluminosilicate and the like, if toxic gases such as hydrogen sulfide, ammonia gas and the like are adsorbed, activated alumina is a material with a high specific surface area and pore structure, and in addition, the harmful gas detector 307 is an existing device, the composition structure of which mainly comprises: the infrared sensor is used for detecting the existence and concentration of harmful gases in the environment, the signal processor is used for receiving the signals of the sensor and converting the signals into readable electric signals, the signals can be amplified, filtered, corrected and the like to provide accurate concentration data, the display is used for displaying the concentration value or alarm state of the harmful gases, the alarm is used for giving an alarm when detecting that the concentration of the harmful gases exceeds a set threshold value so as to remind people to take corresponding measures, and the working principle is as follows: the infrared sensor uses the absorption characteristics between specific infrared wavelength and harmful gas molecules, when harmful gas passes through the sensor, the intensity of infrared radiation changes, the existence and concentration of the gas are judged by detecting the change of infrared radiation, and the detected concentration of the harmful gas exceeds a set threshold value to give an alarm, so that the internal structure of the harmful gas detector 307 is not repeated too much.
The wiring diagrams of the motor 9 and the harmful gas detector 307 in the present invention are common knowledge in the art, the operation principle thereof is a known technology, and the model thereof is selected to be an appropriate model according to actual use, so that the control manner and wiring arrangement will not be explained in detail for the motor 9 and the harmful gas detector 307.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. A high temperature explosion-proof leak-free centrifugal fan, comprising:
the novel air conditioner comprises a fan housing (4) and a bearing table (10), wherein an air outlet (5) is formed in the top of the fan housing (4), the fan housing (4) is fixedly arranged on one side of the bearing table (10), a rotating hole (23) is formed in the rear surface of the fan housing (4), an I-shaped shaft (17) is fixedly clamped on the inner wall of the rotating hole (23), a rotating shaft (22) is rotatably connected to the inner wall of the I-shaped shaft (17), a connecting plate (16) is fixedly connected to one end of the rotating shaft (22), a protective sleeve (204) is arranged on one side of the connecting plate (16), and the connecting plate (16) and the protective sleeve (204) are arranged inside the fan housing (4);
monitoring component (3), monitoring component (3) is including detecting box (302), detect the rear surface at fan housing (4) is installed to box (302), the inside of detecting box (302) is provided with adsorbs package (303), the fixed intercommunication of surface of detecting box (302) has communicating pipe (304), the fixed intercommunication of one end of communicating pipe (304) has collecting pipe (305), the top of plummer (10) is close to edge fixedly connected with dead lever (301), the surface of dead lever (301) is close to top department fixedly connected with two locating levers (306), two cover between the surface of locating lever (306) is equipped with harmful gas detector (307), the inside at collecting pipe (305) is inserted to the operating end of harmful gas detector (307), fixedly connected with boss (308) between the surface of dead lever (301) and the top of plummer (10), installs the position at pivot (22) pivoted, covers the contact between pivot (22) and I-shaped shaft (17), fan housing (4).
2. The high temperature explosion-proof no-leakage centrifugal fan according to claim 1, wherein: the bottom of plummer (10) is close to four corners and all welds bracing piece (11), four welding between the bottom of bracing piece (11) has fixed foot rest (12).
3. The high temperature explosion-proof no-leakage centrifugal fan according to claim 1, wherein: the cooling assembly comprises a fan housing (4), wherein a cooling assembly (1) is fixed on the outer surface of the fan housing (4), the cooling assembly (1) comprises a plurality of cooling fins (101), a cooling pipe (102) is embedded between the outer surfaces of the cooling fins (101), an input interface (103) is fixedly arranged at one end of the cooling pipe (102), and an output interface (104) is fixedly arranged at the other end of the cooling pipe (102).
4. The high temperature explosion-proof no-leakage centrifugal fan according to claim 1, wherein: the inner wall of the fan housing (4) is close to the middle part and fixedly provided with an inner clamping ring (14), the inner wall of the fan housing (4) is close to the outer side part and fixedly provided with an outer clamping ring (15), the front surface of the fan housing (4) is provided with a fixing groove (13), and one side of the fixing groove (13) is provided with an air inlet.
5. The high temperature explosion-proof no-leakage centrifugal fan according to claim 4, wherein: the inner wall of fixed slot (13) is through bolt fixed mounting having protection annular plate (6), the inner wall of protection annular plate (6) is through bolt fixed mounting having installation bucket plate (7), fixedly connected with protection network (8) between the inner wall of installation bucket plate (7).
6. The high temperature explosion-proof no-leakage centrifugal fan according to claim 5, wherein: the inner wall of the I-shaped shaft (17) is fixedly provided with a plurality of sealing rings (18), the outer surface of the rotating shaft (22) is provided with a plurality of sealing grooves (21), and the outer surfaces of the sealing rings (18) are respectively matched with the inner walls of the sealing grooves (21).
7. The high temperature explosion-proof no-leakage centrifugal fan according to claim 6, wherein: one side of the I-shaped shaft (17) is fixed with a reinforced sealing outer ring (19), the other side of the I-shaped shaft (17) is fixed with a reinforced sealing inner ring (20), the inner wall of the reinforced sealing outer ring (19) and the inner wall of the reinforced sealing inner ring (20) are both contacted with the outer surface of the rotating shaft (22), the top of the bearing table (10) is provided with a motor (9), and an output shaft of the motor (9) is fixedly connected with the other end of the rotating shaft (22).
8. The high temperature explosion-proof no-leakage centrifugal fan according to claim 7, wherein: the inside of fan shell (4) is provided with centrifugal subassembly (2), centrifugal subassembly (2) are including first closure plate (201), first closure plate (201) set up between the surface of connecting plate (16) and protective sheath (204), one side fixed mounting of first closure plate (201) has spacing swivel (202), spacing swivel (202) rotates between snap ring (14) and outer clamping ring (15).
9. The high temperature explosion-proof no-leakage centrifugal fan according to claim 8, wherein: the other side fixedly connected with a plurality of impellers (203) of first closure plate (201), a plurality of fixedly connected with second closure plate (205) between the surface of impeller (203), the inner wall fixedly connected with a plurality of connecting rods (206) of second closure plate (205), a plurality of fixedly connected with rotary drum (207) between the one end of connecting rod (206), the inner wall welding of rotary drum (207) has rotary vane (208).
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| CN202311433555.0A CN117145785B (en) | 2023-11-01 | 2023-11-01 | High-temperature explosion-proof leakage-free centrifugal fan |
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| CN1279359A (en) * | 2000-04-13 | 2001-01-10 | 丁震华 | Boosting centrifugal blower for delivering hot gas and its sealing method |
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| CN210113398U (en) * | 2019-04-30 | 2020-02-25 | 天津祥顺科技发展有限公司 | Fire-fighting explosion-proof centrifugal fan |
| CN212297005U (en) * | 2020-05-14 | 2021-01-05 | 中国石油化工股份有限公司 | Fan shaft end sealing device |
| CN214698393U (en) * | 2021-03-15 | 2021-11-12 | 江苏泰隆风机制造有限公司 | Carbon steel main shaft protection structure of anti-corrosion fan |
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2023
- 2023-11-01 CN CN202311433555.0A patent/CN117145785B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1279359A (en) * | 2000-04-13 | 2001-01-10 | 丁震华 | Boosting centrifugal blower for delivering hot gas and its sealing method |
| CN210113398U (en) * | 2019-04-30 | 2020-02-25 | 天津祥顺科技发展有限公司 | Fire-fighting explosion-proof centrifugal fan |
| CN110441003A (en) * | 2019-07-19 | 2019-11-12 | 北京航空航天大学 | A kind of adjustable rotation axis seal leakage amount measuring device for electricity of pressure and temp and method |
| CN212297005U (en) * | 2020-05-14 | 2021-01-05 | 中国石油化工股份有限公司 | Fan shaft end sealing device |
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