CN112160930A - Fan system for recovering waste heat of gas - Google Patents
Fan system for recovering waste heat of gas Download PDFInfo
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- CN112160930A CN112160930A CN202011044274.2A CN202011044274A CN112160930A CN 112160930 A CN112160930 A CN 112160930A CN 202011044274 A CN202011044274 A CN 202011044274A CN 112160930 A CN112160930 A CN 112160930A
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- Prior art keywords
- air
- adjusting
- waste heat
- heat recovery
- air inlet
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- 239000007789 gas Substances 0.000 title claims abstract description 81
- 239000002918 waste heat Substances 0.000 title claims abstract description 53
- 238000011084 recovery Methods 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 27
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000010795 gaseous waste Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F04D25/00—Pumping installations or systems
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
-
- 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
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- 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
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
-
- 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
-
- 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
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- 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
- F04D29/40—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
- F04D29/4246—Fan casings comprising more than one outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a fan system for recovering gas waste heat, which comprises a base and a plurality of fans, wherein the plurality of fans are provided with air inlets and air outlets, the plurality of fans share one shell, a plurality of air inlet cavities and fan blade cavities are arranged in the shell at intervals, the air inlet cavities are provided with the air inlets, the fan blade cavities are provided with the air outlets, the air inlet cavities are communicated with the centers of the fan blade cavities at the rear sides of the air inlet cavities, and the centers of the fan blade cavities at the foremost sides are provided with recovered gas inlets; a slide way is arranged on one side of each of the fans, the air inlets and the air outlets are respectively arranged on the slide way in two rows at equal intervals, a slide block is arranged on the slide way, an adjusting air inlet and an adjusting air outlet are arranged on the slide block, and a plurality of circulating air ducts are also arranged on the slide block and positioned behind the adjusting air inlet and the adjusting air outlet; the adjusting air inlet and the adjusting air outlet at the adjacent rear side of the adjusting air inlet are connected with the outlet and the inlet of the waste heat recovery device through a telescopic hose. Such a fan system can allocate appropriate recovery devices according to the temperature.
Description
Technical Field
The invention belongs to the technical field of fans, and particularly relates to a fan system for recovering waste heat of gas.
Background
The fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Fans are widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, and for ventilation and draught of boilers and industrial furnaces and kilns; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grain, wind tunnel wind source and air cushion boat inflating and propelling.
With the gradual increase of the awareness of energy conservation and emission reduction of people, in the prior art, high-temperature steam, flue gas and the like generated in a factory are often recycled to be recycled in production. The gas generated in each process step of the factory has different temperatures, so the recovery modes are different, the gas with different temperatures needs to be introduced into different recovery devices, for example, the recovery device needs to heat materials at 200 ℃, then the gas with the temperature higher than 200 ℃ needs to be introduced to recover the gas waste heat, and the other recovery device needs to heat water at 30 ℃, so the gas waste heat can be recovered as long as the gas temperature is higher than 30 ℃; the existing fan is difficult to convey gas into different recovery devices according to different gas temperatures.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the fan system for recovering the waste heat of the gas, and the fan system can switch channels of the gas with different temperatures according to the temperature and allocate proper recovery devices according to the temperature, so that the waste heat of the gas can be recovered in an optimal recovery mode.
In order to solve the technical problem, the invention is solved by the following technical scheme: a fan system for recovering gas waste heat comprises a base and a plurality of fans, wherein the plurality of fans are provided with air inlets and air outlets, the plurality of fans share a shell, a plurality of air inlet cavities and fan blade cavities are arranged in the shell at intervals, the air inlets are arranged on the air inlet cavities, the air outlets are arranged on the fan blade cavities, the air inlet cavities are communicated with the centers of the fan blade cavities on the rear sides of the air inlet cavities, a recovered gas inlet is arranged at the center of the fan blade cavity on the foremost side, a rotating shaft driven by a fan blade motor penetrates through the shell, and a centrifugal fan blade is arranged on the rotating shaft in each fan blade cavity; a slide way is arranged on one side of the plurality of fans, the plurality of air inlets and the plurality of air outlets are respectively arranged on the slide way in two rows at equal intervals, a slide block is arranged on the slide way, an adjusting air inlet and an adjusting air outlet which are in one-to-one correspondence with the plurality of air inlets and the plurality of air outlets are arranged on the slide block, a plurality of circulating air channels are also arranged on the rear sides of the adjusting air inlets and the adjusting air outlets on the slide block, and the plurality of circulating air channels can be aligned to and communicated with the air inlets and the air outlets on the rear sides adjacent to the; the adjusting air inlet and the adjusting air outlet on the adjacent rear side of the adjusting air inlet are connected with an outlet and an inlet of the waste heat recovery device through a telescopic hose, and the recovery temperature of the waste heat recovery device is gradually reduced from one side to the other side. The fan system can drive a plurality of centrifugal fan blades to rotate through a fan blade motor, the slider is moved according to the temperature of recovered gas to adjust the waste heat recovery device communicated with each air outlet and each air inlet, when the temperature of the recovered gas is higher, the recovered gas firstly enters the waste heat recovery device with the higher temperature recovered at the front side, the gas with the reduced temperature enters the waste heat recovery device with the lower temperature recovered at the rear side after being accelerated by the centrifugal fan blades, and the gas is discharged after being recovered for multiple times; if the temperature of the recovered gas is slightly lower, the air outlet at the forefront side is directly connected with a waste heat recovery device for recovering the slightly lower temperature through the movable sliding block, and the air outlet at the tail part is directly communicated with the air inlet through the circulating air duct; the fan can switch the channels of the gas with different temperatures according to the temperature, and a proper recovery device is distributed according to the temperature, so that the waste heat of the gas can be recovered in an optimal recovery mode.
In the above technical scheme, preferably, the fan system further includes a waste heat recovery device connecting plate, a plurality of air inlet connectors and air outlet connectors are arranged on the waste heat recovery device connecting plate, the air inlet connectors and the air outlet connectors are in one-to-one correspondence and are connected through the telescopic hoses to adjust the air inlets and adjust the air outlets, and inlets and outlets of the waste heat recovery devices are respectively connected with the air outlet connectors and the air inlet connectors. Adopt this structure to make waste heat recovery device lug connection on the connecting plate, waste heat recovery device's pipeline is fixed, changes the installation.
Among the above-mentioned technical scheme, it is preferred, scalable hose is the bellows, and is a plurality of adjust the air intake with all be provided with the bulge loop on the regulation air outlet, bellows one end is fixed in through the clamp on the bulge loop.
In the above technical scheme, preferably, a plurality of adjusting air inlets and adjusting air outlets are movably provided with a sealing sleeve, a spring is arranged between the tail of the sealing sleeve and the convex ring, a plurality of elastic sealing rings are arranged on the air inlets and the air outlets, and when the sealing sleeve is aligned with the air inlets or the air outlets, the sealing sleeve tightly pushes the elastic sealing rings for sealing. By adopting the structure, the spring can prop against the sealing sleeve and apply pressure to the elastic sealing ring, so that the sealing property is improved, and the leakage of the recovered gas is prevented.
In the above technical solution, preferably, the fan system further includes a slider driving mechanism driven by the adjustment motor. Adopt this structure can move through the convenient control slider of accommodate motor.
In the above technical solution, preferably, the slider driving mechanism includes a screw rod driven by an adjusting motor and arranged along the direction of the slide way, the screw rod is in threaded fit with the slider, and the adjusting motor rotates to adjust the position of the slider on the slide way.
In the above technical solution, preferably, the slider driving mechanism includes a rack arranged along the direction of the slide, a gear driven by an adjusting motor is arranged on the slider, the gear is combined with the rack, and the adjusting motor rotates to adjust the position of the slider on the slide.
In the above technical solution, preferably, a plurality of normally closed temperature control switches with different open circuit temperatures or normally open temperature control switches with different open circuit temperatures are arranged in the recycled gas inlet, a plurality of contact blocks with the same center distance with the adjacent air inlets are arranged along the slide way, the contact blocks are separated by insulating layers, the adjacent contact blocks are connected in series with one of the temperature control switches, the open circuit temperature or the open circuit temperature of the connected temperature control switch gradually increases from one end of the contact blocks to the other end of the contact blocks, the slide block is provided with two contact pieces, the distance between the two contact pieces is equal to the center distance between the adjacent air inlets, and the two contact pieces are respectively in contact with the adjacent contact blocks for conducting electricity, the two ends of the slide way are respectively provided with a first normally closed travel switch and a second normally closed travel switch which are matched with the slide block, and the two contact pieces, the contact blocks, The first normally closed travel switch, the adjusting motor, the adjusting switch and the power supply are connected in series to form an adjusting circuit, and the second normally closed travel switch, the adjusting motor, the reset switch and the power supply are connected in series to form a reset circuit. Before beginning to retrieve, intercommunication reset circuit accommodate motor corotation with the slider reset to with the contact of second normally closed travel switch after the circuit breaks, start the fan blade motor and inhale the recovered gas entry with recovered gas, the intraoral temperature detect switch of recovered gas entry is heated, intercommunication accommodate circuit, accommodate motor can be automatic with slider drive to suitable position, distribute suitable recovery unit according to the temperature automatically to make gaseous waste heat can be retrieved through the optimal recovery mode.
In the above technical solution, preferably, two ends of the power supply are connected to a main switch.
Compared with the prior art, the invention has the following beneficial effects: the fan system can drive a plurality of centrifugal fan blades to rotate through a fan blade motor, the slider is moved according to the temperature of recovered gas to adjust the waste heat recovery device communicated with each air outlet and each air inlet, when the temperature of the recovered gas is higher, the recovered gas firstly enters the waste heat recovery device with the higher temperature recovered at the front side, the gas with the reduced temperature enters the waste heat recovery device with the lower temperature recovered at the rear side after being accelerated by the centrifugal fan blades, and the gas is discharged after being recovered for multiple times; if the temperature of the recovered gas is slightly lower, the air outlet at the forefront side is directly connected with a waste heat recovery device for recovering the slightly lower temperature through the movable sliding block, and the air outlet at the tail part is directly communicated with the air inlet through the circulating air duct; the fan system can switch the channels of the gas with different temperatures according to the temperature and distribute the appropriate recovery device according to the temperature, so that the waste heat of the gas can be recovered in an optimal recovery mode.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic sectional view taken along the line a-a in fig. 1.
Fig. 3 is a schematic structural diagram of the present invention.
FIG. 4 is a schematic structural diagram of another embodiment of the present invention.
Fig. 5 is a connection circuit diagram of the adjustment motor of the present invention.
Fig. 6 is an exploded view of the present invention.
FIG. 7 is a schematic view of the connection structure between the back of the slider and the slider driving mechanism according to the present invention.
FIG. 8 is a schematic cross-sectional view of the slide and the slider of the present invention.
Fig. 9 is a schematic structural diagram of another slide block driving mechanism adopted in the invention.
Detailed Description
The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 9, a fan system for recovering gas waste heat includes a base 1 and five fans 2, each of the five fans 2 is provided with an air inlet 21 and an air outlet 22, the five fans 2 share a housing 23, four air inlet chambers 24 and five fan blade chambers 25 are arranged in the housing 23 at intervals, the air inlet chamber 24 is provided with the air inlet 21, the fan blade chambers 25 are provided with the air outlet 22, the air inlet chamber 24 is communicated with the center of the fan blade chamber 25 at the rear side thereof, the center of the fan blade chamber 25 at the front side is provided with a recovered gas inlet 26, a rotating shaft 28 driven by a fan blade motor 27 penetrates through the housing 23, and the rotating shaft 28 in each fan blade chamber 25 is provided with a centrifugal fan blade 29; two parallel slideways 3 are arranged on one side of each of the five fans 2, four air inlets 21 and five air outlets 22 are respectively arranged on the slideways 3 in two rows at equal intervals, the four air inlets 21 are arranged on one slideway 3 in one row at equal intervals, the five air outlets 22 are arranged on the other slideway 3 in one row at equal intervals, the interval between the air inlets 21 is the same as that between the air outlets 22, a sliding block 4 is arranged on each slideway 3 in a sliding manner, each sliding block 4 is matched with the two slideways in a sliding manner, adjusting air inlets 41 and adjusting air outlets 42 which correspond to the four air inlets 21 and the five air outlets 22 one by one are arranged on each sliding block 4, four circulating air ducts 43 are also arranged on the sliding block 4 at the rear sides of the adjusting air inlets 41 and the adjusting air outlets 42, and the four circulating air ducts 43 can be; the adjusting air inlet 41 and the adjusting air outlet 42 on the adjacent rear side are connected with the outlet and the inlet of the waste heat recovery device through the telescopic hose 5, and the recovery temperature of the waste heat recovery device is gradually reduced from one side to the other side. The fan system can drive a plurality of centrifugal fan blades 29 to rotate through a fan blade motor 27, the slider 4 is moved according to the temperature of the recovered gas to adjust the waste heat recovery device communicated with each air outlet 22 and each air inlet 21, when the temperature of the recovered gas is higher, the recovered gas firstly enters the waste heat recovery device with the higher temperature recovered at the front side, the gas with the reduced temperature enters the waste heat recovery device with the lower temperature recovered at the rear side, and the gas is discharged after being recovered for multiple times; if the temperature of the recovered gas is slightly lower, the air outlet 22 at the forefront side is directly connected with a waste heat recovery device for recovering slightly lower temperature through the movable sliding block 4, and the air outlet 22 at the tail part is directly communicated with the air inlet 21 through the circulating air duct 43; the fan system can switch the channels of the gas with different temperatures according to the temperature and distribute the appropriate recovery device according to the temperature, so that the waste heat of the gas can be recovered in an optimal recovery mode.
In order to fix the pipeline of the waste heat recovery device when the fan system operates and to facilitate installation, the fan system further comprises a waste heat recovery device connecting plate 6, an air inlet connecting port 61 and an air outlet connecting port 62 are arranged on the waste heat recovery device connecting plate 6, the air inlet connecting port 61 and the air outlet connecting port 62 are connected with an adjusting air inlet 41 and an adjusting air outlet 42 through a telescopic hose 5 in one-to-one correspondence, and an inlet and an outlet of the waste heat recovery device are respectively connected with the air outlet connecting port 62 and the air inlet connecting port 61.
Referring to fig. 8, in the present embodiment, the flexible hose 5 is a corrugated tube, the adjusting air inlet 41 and the adjusting air outlet 42 are both provided with a protruding ring 44, and one end of the corrugated tube is fixed on the protruding ring 44 through the clip 7.
A sealing sleeve 45 is movably arranged in each of the adjusting air inlet 41 and the adjusting air outlet 42, a spring 46 is arranged between the tail part of the sealing sleeve 45 and the convex ring 44, elastic sealing rings 48 are arranged on the air inlet 21 and the air outlet 22, and when the sealing sleeve 45 is aligned with the air inlet 21 or the air outlet 22, the sealing sleeve 45 tightly pushes the elastic sealing rings 48 for sealing. When the adjusting air inlet 41 is aligned with the air inlet 21 or the adjusting air outlet 42 is aligned with the air outlet 22, the spring 46 can abut against the sealing sleeve 56 and apply pressure to the elastic sealing ring 48, so that the sealing performance is improved, and the leakage of the recovered gas is prevented.
The fan system further comprises a slider drive mechanism 8 driven by a regulating motor 81.
Referring to fig. 2, 3, 4, 6 and 7, the slide block driving mechanism 8 includes a screw rod 82 provided in the slide way direction and driven by an adjusting motor 81, the screw rod 82 is screw-engaged with the slide block 4, and the adjusting motor 81 rotates to adjust the position of the slide block 4 on the slide way 3.
Referring to fig. 9, another embodiment of the slide block driving mechanism 8 is shown, the slide block driving mechanism 8 includes a rack 83 disposed along the direction of the slide way 3, a gear 84 driven by an adjusting motor 81 is disposed on the slide block 4, the gear 84 is combined with the rack 83, and the adjusting motor 81 rotates to adjust the position of the slide block 4 on the slide way 3.
Referring to fig. 2 to 5, taking the temperature control switch 91 as a normally closed temperature control switch as an example, the temperature control switch 91 is a thermal sensitive bimetallic strip temperature control switch, four normally closed temperature control switches 91 with different open circuit temperatures are arranged in the recovered gas inlet 26, five contact blocks 92 with the same distance with the center of the adjacent air inlet 21 are arranged along the direction of the chute 3, the contact blocks 92 are spaced by an insulating layer 93, the adjacent contact blocks 92 are connected in series with one of the normally closed temperature control switches 91, the open circuit temperature of the connected normally closed temperature control switch 91 is gradually increased from one end to the other end of the five contact blocks 92, the slider 4 is provided with two contact pieces 94, the distance between the two contact pieces 94 is equal to the center distance of the adjacent air inlet 21, and the two contact pieces 94 are respectively in contact with the adjacent contact block 92, the two ends of the chute 3 are respectively provided with a first normally closed travel switch 95 and a second normally closed travel switch 96, The normally closed temperature control switch 91, the first normally closed travel switch 95, the adjusting motor 81, the adjusting switch 97 and the power supply 98 are connected in series to form an adjusting circuit, the second normally closed travel switch 96, the adjusting motor 81, the reset switch 99 and the power supply 98 are connected in series to form a reset circuit, and the two ends of the power supply 98 are connected with a main switch 910. Before recovery begins, the main switch 910 is turned on, the reset switch 99 is turned on to connect the reset circuit to adjust the motor 81 to rotate forward to reset the sliding block 4 to be in contact with the second normally closed travel switch 96, the adjusting motor 81 stops rotating automatically, namely the position shown in FIG. 3, and then the reset switch 99 turns off the reset circuit; the fan motor 27 is started to suck the recovered gas into the recovered gas inlet 26, four normally closed temperature control switches 91 in the recovered gas inlet 26 are all heated, the open circuit temperatures of the normally closed temperature control switches 91 in the embodiment are respectively 100 ℃, 200 ℃, 300 ℃ and 400 ℃, in fig. 3 and 4, the open circuit temperatures of the normally closed temperature control switches 91 connected with the adjacent contact blocks 92 gradually rise from left to right, after the recovered gas is introduced into the recovered gas inlet 26 for a period of time, the normally closed temperature control switches 91 may be partially opened due to temperature rise, or may be completely opened or completely closed, the temperature control switches 91 are all closed when the temperature of the recovered gas is lower than 100 ℃, when the temperature of the recovered gas is higher than 100 ℃ and lower than 400 ℃, the normally closed temperature control switches 91 are partially closed, when the temperature of the recovered gas is higher than 400 ℃, the temperature control switches 91 are all opened, and then the adjusting switches 97 are opened to connect the adjusting circuit, when the recovered gas temperature is higher than 400 ℃, the closed temperature control switch 91 is completely switched off, the normally closed temperature control switch 91 between the two contact blocks 92 at the rightmost side is switched off, so that the adjusting motor 81 does not operate, and when the recovered gas temperature is higher than 100 ℃ and lower than 400 ℃, the normally closed temperature control switch 91 between the two contact blocks 92 at the rightmost side is inevitably switched on, and the adjusting motor 81 reversely rotates to drive the sliding block 4 to move leftwards until the two contact blocks 94 move to the position where the normally closed temperature control switch 91 between the two contact blocks 92 in contact with the sliding block is switched off; when the temperature of the recovered gas is lower than 100 ℃, the normally closed temperature control switch 91 is completely closed, and the adjusting motor 81 rotates reversely to drive the sliding block 4 to move leftwards to be in contact with the first normally closed travel switch 95 to stop running, namely the position shown in fig. 4. In the position, the four air outlets 22 on the tail part, namely the right side, and the four air inlets 21 are directly communicated through the four circulating air ducts 43, and recovered air can be directly exhausted from the air outlet connecting port 62 on the rightmost side of the waste heat recovery device connecting plate 6 through the recovered air inlet 26, the air outlet 22 on the leftmost side, the adjusting air outlet 42 on the rightmost side and the telescopic hose 5.
Referring to fig. 2 to 5 as well, taking the temperature control switch 91 as a normally open temperature control switch as an example, the temperature control switch 91 is a thermal sensitive bimetallic strip temperature control switch, and the circuit diagram of the connection is not changed, but the difference is that the positions of the first normally closed travel switch 95 and the second normally closed travel switch 96 on the slideway 3 are exchanged, and the rotation directions of the adjusting motor 81 during resetting and adjusting are opposite, that is, the position in fig. 4 is an initial position, and the position in fig. 3 is a position where all the normally open temperature control switches 91 are closed. Before recovery begins, the main switch 910 is turned on, the reset switch 99 is turned on, the reset circuit adjusting motor 81 is turned on, the sliding block 4 is reset to be in contact with the second normally closed travel switch 96, the adjusting motor 81 stops automatically, namely the position shown in FIG. 4, and then the reset circuit is turned off by the reset switch 99; the open circuit temperature of the normally open temperature controlled switch 91 is 100 ℃, 200 ℃, 300 ℃ and 400 ℃, respectively, in fig. 3 and 4, the open circuit temperature of the normally closed temperature controlled switch 91 connected with the adjacent contact block 92 gradually rises from left to right, after the recovered gas is introduced into the recovered gas inlet 26 for a period of time, the normally open temperature controlled switch 91 may be partially closed due to temperature rise, or may be completely opened or completely closed, when the recovered gas temperature is lower than 100 ℃, the normally open temperature controlled switch 91 is completely opened, when the recovered gas temperature is higher than 100 ℃ and lower than 400 ℃, the normally open temperature controlled switch 91 is partially opened, the normally open temperature controlled switch 91 is partially closed, when the recovered gas temperature is higher than 400 ℃, the normally open temperature controlled switch 91 is completely closed, then the adjusting switch 97 is opened to connect the adjusting circuit, when the recovered gas temperature is higher than 400 ℃, the adjusting motor 81 positively moves to drive the slide block 4 to be contacted with the first normally closed travel switch 95 to stop operation, i.e., the figure 3 position; when the temperature of the recovered gas is lower than 100 ℃, the sliding block 4 stays at the initial position because the normally open temperature control switch 91 between the two contact blocks 92 at the leftmost side is switched off, so that the adjusting motor 81 does not operate; when the temperature of the recovered gas is higher than 100 ℃ and lower than 400 ℃, the normally open temperature control switch 91 between the two contact blocks 92 at the leftmost side is closed inevitably, the regulating motor 81 rotates forwards to drive the sliding block 4 to move rightwards until the two contact pieces 94 move to the position where the normally open temperature control switch 91 between the two contact blocks 92 contacted with the sliding block is opened.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a fan system for gaseous waste heat recovery, includes base (1) and a plurality of fan (2), and is a plurality of all be provided with air intake (21) and air outlet (22), its characterized in that on fan (2): the fan structure comprises a plurality of fans (2) sharing a shell (23), wherein a plurality of air inlet cavities (24) and air blade cavities (25) are arranged in the shell (23) at intervals, air inlets (21) are formed in the air inlet cavities (24), air outlets (22) are formed in the air blade cavities (25), the air inlet cavities (24) are communicated with the centers of the air blade cavities (25) on the rear sides of the air inlet cavities, a recovered air inlet (26) is formed in the center of the air blade cavity (25) on the foremost side, rotating shafts (28) driven by a fan blade motor (27) penetrate through the shell (23), and centrifugal fan blades (29) are arranged on the rotating shafts (28) in each air blade cavity (25); a slide way (3) is arranged on one side of the plurality of fans (2), the plurality of air inlets (21) and the plurality of air outlets (22) are respectively arranged on the slide way (3) in two rows at equal intervals, a sliding block (4) is arranged on the slide way (3), adjusting air inlets (41) and adjusting air outlets (42) which are in one-to-one correspondence with the plurality of air inlets (21) and the plurality of air outlets (22) are arranged on the sliding block (4), a plurality of circulating air ducts (43) are also arranged on the rear sides of the adjusting air inlets (41) and the adjusting air outlets (42) on the sliding block (4), and the plurality of circulating air ducts (43) can be aligned to and communicated with the air inlets (21) and the air outlets (22) on the rear sides adjacent to the air; the adjusting air inlet (41) and the adjusting air outlet (42) on the adjacent rear side of the adjusting air inlet are connected with an outlet and an inlet of the waste heat recovery device through a telescopic hose (5), and the recovery temperature of the waste heat recovery device is gradually reduced from one side to the other side.
2. The fan system for gas waste heat recovery of claim 1, wherein: the fan system is characterized by further comprising a waste heat recovery device connecting plate (6), wherein a plurality of air inlet connectors (61) and air outlet connectors (62) are arranged on the waste heat recovery device connecting plate (6), the air inlet connectors (61) and the air outlet connectors (62) are in one-to-one correspondence to each other and are connected through telescopic hoses (5) to adjust the air inlets (41) and the air outlets (42), and the inlets and the outlets of the waste heat recovery devices are respectively connected with the air outlet connectors (62) and the air inlet connectors (61).
3. The fan system for gas waste heat recovery according to claim 1 or 2, wherein: scalable hose (5) are the bellows, and are a plurality of adjust air intake (41) with all be provided with bulge loop (44) on adjusting air outlet (42), bellows one end is fixed in through clamp (7) on bulge loop (44).
4. The fan system for gas waste heat recovery according to claim 3, wherein: a sealing sleeve (45) is movably arranged in the plurality of adjusting air inlets (41) and the adjusting air outlet (42), a spring (46) is arranged between the tail portion of the sealing sleeve (45) and the convex ring (44), a plurality of elastic sealing rings (48) are arranged on the air inlets (21) and the air outlet (22), and when the sealing sleeve (45) is aligned to the air inlets (21) or the air outlet (22), the sealing sleeve (45) is tightly propped against the elastic sealing rings (48) for sealing.
5. The fan system for gas waste heat recovery of claim 1, wherein: the fan system also comprises a slide block driving mechanism (8) driven by the adjusting motor (81).
6. The fan system for gas waste heat recovery of claim 1, wherein: slider actuating mechanism (8) include and follow the slide direction is provided with by accommodate motor (81) driven screw rod (82), screw rod (82) with slider (4) screw-thread fit, accommodate motor (81) rotate in order to adjust slider (4) is in position on slide (3).
7. The fan system for gas waste heat recovery of claim 1, wherein: slider actuating mechanism (8) include and follow slide (3) direction is provided with rack (83), be provided with on slider (4) by adjusting motor (81) driven gear (84), gear (84) with rack (83) combine, adjusting motor (81) rotate in order to adjust slider (4) are in position on slide (3).
8. The fan system for gas waste heat recovery according to any one of claims 5 to 7, wherein: a plurality of normally closed temperature control switches (91) with different open circuit temperatures or normally open temperature control switches with different access temperatures are arranged in the recovered gas inlet (26), a plurality of contact blocks (92) with the same center distance as that of the adjacent air inlets (21) are arranged in the direction of the slide way (3), the contact blocks (92) are spaced through insulating layers (93), the adjacent contact blocks (92) are connected with one temperature control switch (91) in series, the open circuit temperature or access temperature of the connected temperature control switches (91) is gradually increased from one end to the other end of the plurality of contact blocks (92), two contact sheets (94) are arranged on the slide block (4), the distance between the two contact sheets (94) is the same as that of the adjacent air inlets (21) and is respectively in contact conduction with the adjacent contact blocks (92), a first travel switch (95) and a second travel switch (96) which are matched with the slide block (4) are respectively arranged at two ends of the slide way (3), the two contact pieces (94), the contact block (92), the temperature control switch (91), the first normally-closed travel switch (95), the adjusting motor (81), the adjusting switch (97) and the power supply (98) are connected in series to form an adjusting circuit, and the second normally-closed travel switch (96), the adjusting motor (81), the reset switch (99) and the power supply (98) are connected in series to form a reset circuit.
9. The fan system for gas waste heat recovery of claim 8, wherein: and a main switch (910) is connected to two ends of the power supply (98).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011044274.2A CN112160930B (en) | 2020-09-28 | 2020-09-28 | Fan system for recovering waste heat of gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011044274.2A CN112160930B (en) | 2020-09-28 | 2020-09-28 | Fan system for recovering waste heat of gas |
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| CN112160930A true CN112160930A (en) | 2021-01-01 |
| CN112160930B CN112160930B (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011044274.2A Active CN112160930B (en) | 2020-09-28 | 2020-09-28 | Fan system for recovering waste heat of gas |
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| US20040184927A1 (en) * | 2001-07-30 | 2004-09-23 | Kolodziej Robert M. | Air cooled packaged multi-stage centrifugal compressor system |
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| CN209539601U (en) * | 2019-01-26 | 2019-10-25 | 广东佳科风机股份有限公司 | A kind of New energy electric bus brush DC low noise double volute centrifugal blower |
| CN110822968A (en) * | 2019-10-25 | 2020-02-21 | 中国矿业大学 | Efficient recovery system for mine return air waste heat |
| CN211550043U (en) * | 2019-12-31 | 2020-09-22 | 李云 | Can absorb thermal waste heat recovery device based on electric substation uses |
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2020
- 2020-09-28 CN CN202011044274.2A patent/CN112160930B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040184927A1 (en) * | 2001-07-30 | 2004-09-23 | Kolodziej Robert M. | Air cooled packaged multi-stage centrifugal compressor system |
| CN207500176U (en) * | 2017-11-23 | 2018-06-15 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of centrifugal air compressor group residual neat recovering system |
| CN209539601U (en) * | 2019-01-26 | 2019-10-25 | 广东佳科风机股份有限公司 | A kind of New energy electric bus brush DC low noise double volute centrifugal blower |
| CN110822968A (en) * | 2019-10-25 | 2020-02-21 | 中国矿业大学 | Efficient recovery system for mine return air waste heat |
| CN211550043U (en) * | 2019-12-31 | 2020-09-22 | 李云 | Can absorb thermal waste heat recovery device based on electric substation uses |
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|---|---|
| CN112160930B (en) | 2021-07-02 |
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Denomination of invention: A fan system for gas waste heat recovery Effective date of registration: 20221109 Granted publication date: 20210702 Pledgee: Postal Savings Bank of China Co.,Ltd. Shaoxing Shangyu District Sub branch Pledgor: ZHEJIANG FENGSHEN VENTILATOR MANUFACTURE CO.,LTD. Registration number: Y2022330002997 |
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