CN107565765B - Generator carbon powder collecting device and collecting method - Google Patents
Generator carbon powder collecting device and collecting method Download PDFInfo
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- CN107565765B CN107565765B CN201710939603.1A CN201710939603A CN107565765B CN 107565765 B CN107565765 B CN 107565765B CN 201710939603 A CN201710939603 A CN 201710939603A CN 107565765 B CN107565765 B CN 107565765B
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Abstract
The invention discloses a carbon powder collecting device, in particular to a carbon powder collecting device of a static excitation generator, belonging to the technical field of large-scale steam turbine generator devices; the device comprises a shell with a collector ring hot air flow channel containing carbon powder, wherein two sides of the upper part of the shell are respectively provided with an air inlet for introducing hot air flow and an air outlet for discharging hot air flow, the top and the bottom of the inner side of the shell are provided with a plurality of non-ventilated baffle mechanisms, the bottom of the shell is also provided with a dust collecting box for collecting the carbon powder, and the collector ring hot air flow containing the carbon powder flows up and down through the baffle mechanisms and makes the carbon powder fall into the dust collecting box after colliding with the baffle plates; the design of the invention does not need to add a fan, realizes 'non-activity' carbon powder collection by means of a natural physical principle, does not need an electric control device, is more convenient to maintain, has strong safety and reliability, does not have hidden trouble and has inherent high safety and reliability.
Description
Technical Field
The invention relates to a carbon powder collecting device and a collecting method, in particular to a static excitation generator carbon powder collecting device and a collecting method, and belongs to the technical field of large-scale steam turbine generator devices.
Background
For a static excitation generator, carbon powder is generated by friction between a collecting ring and a brush (carbon brush), and if the carbon powder is not discharged in time, the carbon powder can be scattered between the positive electrode and the negative electrode of the collecting ring and accumulated, so that the insulation of a generator rotor is reduced or the generator rotor is grounded. At present, a domestic turbo generator mainly adopts a filter screen type carbon powder collecting device to collect carbon powder so as to solve the problem of insulation decline of a generator rotor caused by carbon powder accumulation.
The carbon powder collecting device is large in size, the filter screen is replaced, carbon powder in the dust box is cleaned, an overhaul space is reserved beside the device, meanwhile, the space is reserved beside the device, and the space requirement on a power generation plant is very large. The device also generates larger noise pollution when running due to the fan and the motor. When the control cabinet or the motor malfunctions during the operation of the device, the whole carbon powder collecting device becomes a large wind resistance element, so that the wind quantity is rapidly reduced, the collector ring is overheated or burnt, and the safe operation of the generator is seriously endangered. The filter screen is easy to be blocked, the carbon powder removing efficiency of the carbon powder collecting device is reduced after the carbon powder collecting device is operated for a period of time, the filter screen is required to be regularly maintained, cleaned or replaced, and the service life of the filter screen is short.
Disclosure of Invention
The invention aims at: to solve the above-mentioned problems, an embodiment of the present invention provides a device and a method for collecting carbon powder of a generator, which do not need to provide an air draft motor, prevent carbon powder dust from accumulating on a filter plate to affect a flow discarding channel, so as to achieve the purposes of reducing the volume of the device, prolonging the maintenance period of the device, ensuring the circulation effect of air flow under the condition of no external power, improving the collection effect of the carbon powder dust, reducing the bearing capacity of a baffle, and being beneficial to the development of the technical field of turbo generator devices.
The technical scheme adopted by the invention is as follows:
the utility model provides a generator carbon dust collection device, includes the casing that has the collecting ring hot air flow passageway that contains the carbon dust, and the upper portion both sides of this casing are provided with the air intake that is used for introducing the hot air flow respectively and the air outlet that discharges the hot air flow, are provided with a plurality of baffle mechanisms that do not ventilate on this casing inboard top and the bottom, the casing bottom still is provided with the dust collection box that is used for collecting the carbon dust, and this collecting ring hot air flow that contains the carbon dust flows up and down and makes the carbon dust fall into in the dust collection box after collision baffle through baffle mechanism.
According to the generator carbon powder collecting device, the air-tight baffle plate mechanism is adopted to enable hot air flow to strike the baffle plate mechanism in the flowing process, kinetic energy of carbon powder dust is reduced after striking in the striking process, gas is reduced along with the blocking kinetic energy of the baffle plate mechanism, so that the carbon powder cannot be driven to flow, the carbon powder dust naturally falls under the action of natural gravity, the dust collecting box is arranged below the carbon powder collecting device, the dust collecting box is cleaned when the carbon powder is collected in the dust collecting box, the problem of device maintenance can be solved, and in order to ensure that the hot air flow can consume failure fruits in the flowing process, the baffle plate mechanism is arranged up and down by adopting the shell, so that the distance of the hot air flow is prolonged, and the volume of the collecting device is fully reduced. In addition, the design of this mode adopts passive design theory, effectively cancels updraft ventilator's setting, saves updraft ventilator's space design to need not consume the energy consumption, can effectively save the energy consumption. Therefore, the manufacturing cost of the carbon powder collecting device can be effectively reduced, resources are saved, the utilization rate of the installation space of a factory is improved, the maintenance period of the whole device is prolonged, noise pollution generated by the device is avoided, and the labor cost is reduced. The structure is simpler, the shutdown condition caused by the electric automation control fault is avoided, and the working efficiency of the generator is higher. In the large-scale turbo generator, the auxiliary device has positive and obvious effects on the practicality and popularization of the device through the small-size design, and obvious economic benefit and beneficial effect are brought.
According to the carbon powder collecting device of the generator, the baffle mechanisms are respectively arranged on the top side wall and the bottom side wall of the inner side of the shell, and are arranged in an equidistant and crossed mode. Effectively prolong the passage distance of hot air flow.
Further, the bottom of the baffle mechanism at the top of the shell is lower than the top of the baffle mechanism at the bottom of the shell, so that the collector ring hot air flow channel forms an S-shaped channel. The mode can ensure that the hot air flow has sufficient impact with the baffle mechanism in the flowing process, and can comprehensively resist the hot air flow to a certain extent, so that the effect of energy consumption loss is more beneficial to the collection of carbon powder.
Further, the bottom of the baffle mechanism at the top of the shell is lower than the bottom of the air inlet. The design mode can ensure that the hot air flow enters the shell and is comprehensively blocked by the baffle mechanism, thereby being beneficial to reducing the kinetic energy of the hot air flow and further being beneficial to collecting carbon powder.
The invention relates to a carbon powder collecting device of a generator, which comprises a baffle plate fixed on the inner side wall of a shell, wherein an energy absorption plate is arranged on one side of the baffle plate facing an air inlet. The method can ensure the effect of carbon powder impact energy consumption, is favorable for collecting the carbon powder, solves the problem of short maintenance period of the device, and improves the energy consumption effect by utilizing the energy absorbing plate.
Further, an energy absorbing plate is arranged on one side of the partition plate, which faces the air outlet. The condition that the air current flows back under the condition that runs into baffle mechanism and stops appears, and at the in-process of backward flow, the carbon dust can be along with hot-blast motion, when running into baffle mechanism, this mode can fully increase the consumption of energy, strengthens the collection effect of carbon dust.
Further, the energy absorbing plate is fixed on the partition plate through bolt connection. The connection mode is convenient for maintenance of the energy absorption plate, is beneficial to overhaul of the device, and saves maintenance time.
Further, the partition plate is fixedly connected inside the shell through welding so as to strengthen the sealing effect of the joint. The sealing effect of baffle is guaranteed to this design mode, guarantees the blocking effect of hot air flow.
Furthermore, the inner side of the lower part of the shell where the air inlet and the air outlet are positioned is provided with an energy absorbing plate which is positioned below the air inlet and the air outlet. The design of the mode ensures that the hot air flow can fully generate the effect of reducing the kinetic energy by collision in the movement channel in the shell.
Further, the energy absorbing plate comprises a plate body, and through holes for enhancing energy absorbing effect and increasing energy loss are formed in the plate body. This design mode is based on the process of energy consumption, can effectively increase the striking of carbon dust through the design of through-hole, increases the loss of energy, blocks through energy-absorbing board itself and baffle and increases the collection rate of carbon dust, avoids other problem influences that the carbon dust caused.
A collection method of a generator carbon powder collection device comprises the following steps:
a. an air inlet and an air outlet are arranged at the upper parts of two sides of the shell of the collecting device, and a baffle plate is welded at the top and the bottom of the inner side of the shell in a crossing way;
b. when the partition plates are welded, the bottom of the partition plate at the top of the shell is lower than the top of the partition plate at the bottom of the shell, and an S-shaped hot air flow channel is formed through the partition plates and the inner cavity of the shell;
c. the energy absorbing plates with through holes are arranged on the two sides of the partition plate, the inner side of the shell below the air inlet and the inner side of the shell below the air outlet;
d. the bottom of the shell is provided with a dust collecting box, the dust collecting box extends to the partition plate and the shell, so that carbon dust with insufficient kinetic energy in the flowing process can impact the energy absorbing plate and the carbon dust with energy loss caused by the impact of the energy absorbing plate through holes on the partition plate naturally falls into the dust collecting box under the action of gravity;
e. and introducing hot air flow from the air inlet, carrying out the inside of the shell in a natural state, and discharging the hot air flow from the air outlet to finish the collection of carbon powder.
Further, in the step a, the number of the partition boards at the top of the shell is 1 more than the number of the partition boards at the bottom of the shell, so that the partition boards near the air inlet and the air outlet are located at the top of the shell. The mode can guarantee that the hot air flow entering is fully blocked, so that the hot air flows downwards to play an effective buffering role, and in addition, the space inside the device can be fully utilized by adopting the design at the position close to the air outlet, so that the device has an obvious effect on the volume miniaturization of the device.
Further, in the step a, the cross-sectional area of the air inlet is smaller than the cross-sectional area of the partition plate, so as to ensure that the hot air flow fully impinges on the partition plate. Because the caliber of the air inlet is smaller, the hot air flow is converted into a larger cavity from a small caliber after entering the shell, and the kinetic energy of the air is effectively reduced, so that the kinetic energy of the hot air flow driving carbon powder to move is reduced, and the carbon powder dust with larger diameter directly falls into the dust collecting box.
Further, in the step c, the diameter of the through hole is far greater than the diameter of the carbon dust so as to avoid the blocking of the through hole caused by the accumulation of the carbon dust due to the overlarge air quantity and increase the load of the energy absorbing plate.
According to the generator carbon powder collecting device, the kinetic energy of hot air flow is reduced by means of the design of the plurality of layers of baffle plates, in practical application, the kinetic energy is reduced after the flow speed of the air flow is reduced, and impurities mixed in the air, particularly dust with slightly heavy weight, can naturally fall under the action of gravity. In the design, the baffle mechanism mainly achieves two purposes, namely, the arrangement of the baffle mechanism is adopted to prolong the flow path of hot air flow, so that the energy of the hot air flow is effectively lost; and secondly, the baffle mechanism is used for blocking hot air flow and is used for impacting dust in the hot air flow, and energy loss is obvious in the impacting process. The design of the two purposes is based on the low kinetic energy of the gas, which enables separation between the gas and the dust. In the carbon powder collecting device of the current turbo generator, the means adopted generally is the design of an air draft mechanism and a filter plate, and the traditional technology is adopted to increase the load of the filter screen and shorten the maintenance period at the same time, and meanwhile, the equipment is large in size and has larger requirements on the installation area. The traditional collection device increases the kinetic energy of hot air flow so as to realize the emission of gas and the filtration of carbon powder, and the design adopts natural gravity without external power, and in the actual collection process, the energy loss of hot air flow is increased as much as possible, thereby realizing simple structure, saving energy consumption, being convenient for installation and maintenance, and the design of small device volume can have obvious contribution and economic benefit in the field of turbo generators.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the design of the invention does not need to add a fan, realizes 'non-activity' carbon powder collection by means of a natural physical principle, does not need an electric control device, is more convenient to maintain, has strong safety and reliability, does not have hidden trouble and has inherent high safety and reliability;
2. the design of the invention does not need regular maintenance, cleaning or replacement when in operation, because the diameter of the through hole is far larger than the diameter of the carbon dust, and the energy loss of the hot air flow is combined, the through hole is not blocked, the load of the baffle mechanism is not increased, and therefore, the carbon dust in the dust box is only required to be cleaned regularly;
3. the invention adopts the S-shaped gas channel to increase the gas path, adopts the passive carbon powder collecting mode, not only saves the energy consumption, but also effectively reduces the volume of the device by combining the design without a fan, and the invention can be arranged at the top of a factory building due to small space of the device, has less occupation of the effective space of the factory building, can not generate noise by utilizing the design mode, avoids noise pollution, reduces the installation environment, and simultaneously, the optimization of the structure effectively reduces the manufacturing cost and the maintenance cost.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the right side view of the present invention;
FIG. 3 is a schematic structural view of embodiment 2 of the present invention;
fig. 4 is a schematic view of the structure of the partition mechanism of the present invention.
The marks in the figure: 1-shell, 2-air inlet, 3-air outlet, 4-dust box, 5-baffle, 6-energy-absorbing plate, 61-plate body, 62-through hole, 11-first shell, 12-first air inlet, 13-first air outlet, 14-first dust box, 15-filter screen, 16-motor, 17-switch board, 18-fan.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Example 1
The utility model provides a generator carbon dust collection device, as shown in fig. 1 and 2, including having the casing 1 that contains the collector ring hot air flow channel of carbon dust, the upper portion both sides of this casing 1 are provided with respectively and are used for introducing the air intake 2 of hot air flow and discharge the air outlet 3 of hot air flow, be provided with a plurality of baffle mechanisms that do not ventilate on this casing 1 inboard top and the bottom, casing 1 bottom still is provided with the dust collection box 4 that is used for collecting the carbon dust, this collector ring hot air flow that contains the carbon dust flows from top to bottom through baffle mechanism and makes the carbon dust fall in the dust collection box after striking the baffle.
In this embodiment, the air-tight baffle mechanism is adopted to make the hot air flow strike the baffle mechanism in the process of flowing, in the striking process, the kinetic energy of carbon dust striking is reduced, the gas also descends because of the blocking kinetic energy of receiving the baffle mechanism, thereby can not drive the carbon dust and flow, under natural gravity effect, the carbon dust falls naturally, because the dust collection box that the below set up, the carbon dust is collected in the dust collection box, the problem that can solve the device maintenance is cleared up to the dust collection box when collecting certain state, in order to guarantee that the hot air flow can consume inefficacy fruit in the flow process, set up baffle mechanism from top to bottom with the casing, thereby prolonged the journey of hot air flow, fully reduce collection device's volume. In addition, the design of this mode adopts passive design theory, effectively cancels updraft ventilator's setting, saves updraft ventilator's space design to need not consume the energy consumption, can effectively save the energy consumption. Therefore, the manufacturing cost of the carbon powder collecting device can be effectively reduced, resources are saved, the utilization rate of the installation space of a factory is improved, the maintenance period of the whole device is prolonged, noise pollution generated by the device is avoided, and the labor cost is reduced. The structure is simpler, the shutdown condition caused by the electric automation control fault is avoided, and the working efficiency of the generator is higher. In the large-scale turbo generator, the auxiliary device has positive and obvious effects on the practicality and popularization of the device through the small-size design, and obvious economic benefit and beneficial effect are brought.
In order to achieve a better effect based on the design principle of the above embodiment, in another embodiment, the baffle mechanisms are respectively arranged on the top and bottom side walls of the inner side of the casing 1 and are arranged at equal intervals in a crossing manner.
In principle, the design based on the above embodiment is to reduce the energy of the hot air flow, increase the energy loss to make the carbon powder naturally drop and collect, so in order to effectively prolong the travel of the gas, in another embodiment, the height of the bottom of the baffle mechanism at the top of the shell is not higher than the height of the top of the baffle mechanism at the bottom of the shell. In one embodiment, the bottom of the baffle mechanism at the top of the housing is lower than the top of the baffle mechanism at the bottom of the housing, so that the collector ring hot air flow channel forms an S-shaped channel. The mode can ensure that the hot air flow has sufficient impact with the baffle mechanism in the flowing process, and can comprehensively resist the hot air flow to a certain extent, so that the effect of energy consumption loss is more beneficial to the collection of carbon powder. Of course, as another two ways, one is that the height of the bottom of the diaphragm mechanism at the top of the housing is equal to the height of the top of the diaphragm mechanism at the bottom of the housing. The mode has higher requirements on the baffle mechanism and increases the difficulty of installation. And secondly, the bottom of the baffle mechanism positioned at the top of the shell is higher than the top of the baffle mechanism positioned at the bottom of the shell. Because there is no overlap between the baffles, the generated gap has no blocking effect, and the hot air flows to the air outlet through the gap, so the mode can not effectively implement the carbon powder collecting effect.
More specifically, based on the design of the above embodiment, in another embodiment, the number of the partition mechanisms at the top of the housing is 1 more than the number of the partition mechanisms at the bottom of the housing, so that the partition mechanisms near the air inlet and the air outlet are both located at the top of the interior of the housing.
In design, for the principle of device design, in another specific embodiment, the bottom of the partition mechanism at the top of the shell is not higher than the bottom of the air inlet. For better processing and attachment of the device components, the collecting effect is ensured, in one embodiment the bottom of the partition means at the top of the housing is at a lower level than the bottom of the air inlet. Specifically, the sectional area of the air inlet is smaller than the sectional area of the partition plate. According to the principle of gas flow, the energy of the gas can be effectively reduced by combining the small-caliber pipeline with the large-caliber pipeline, so that in another specific embodiment, the sectional area of the air inlet is 1/3-1/2 of the radial sectional area of the shell.
In order to enhance the effect of the energy loss of the hot air flow based on the design principle of the above embodiments, in one embodiment, as shown in fig. 4, the diaphragm mechanism comprises a diaphragm 5 fixed on the inner side wall of the housing, and an energy absorbing plate 6 is arranged on the side of the diaphragm 5 facing the air inlet. The method can ensure the effect of carbon powder impact energy consumption, is favorable for collecting the carbon powder, solves the problem of short maintenance period of the device, and improves the energy consumption effect by utilizing the energy absorbing plate.
In another embodiment, the side of the partition 5 facing the air outlet is provided with an energy-absorbing plate 6, based on the design principle of the above embodiment. The condition that the air current flows back under the condition that runs into baffle mechanism and stops appears, and at the in-process of backward flow, the carbon dust can be along with hot-blast motion, when running into baffle mechanism, this mode can fully increase the consumption of energy, strengthens the collection effect of carbon dust.
In a further embodiment, the energy absorber plate 6 is fastened to the diaphragm by means of a screw connection, based on the design principle of the embodiment described above. The design mode can be set into various modes, and the specific implementation modes are as follows:
firstly, a threaded groove is formed in a partition plate, a stud is connected into the threaded groove, a limiting table for limiting is arranged on the other end of the stud, a mounting hole is formed in an energy absorbing plate, the stud penetrates through the mounting hole and is limited through the limiting table, and a nut is used for closing;
secondly, a threaded through hole is formed in the partition board, the energy absorbing plate is fixed on the partition board through a full-threaded bolt with a nut and the threaded through hole, a nut is arranged on the full-threaded bolt between the energy absorbing plate and the partition board, and the distance between the energy absorbing plate and the partition board can be adjusted through the nut;
thirdly, the connecting bolt is welded on the partition plate, and the other end of the connecting bolt is connected with the energy absorbing plate on the partition plate through the limiting table and the nut or through the nut and the nut.
In principle, based on the design of the embodiments described above, in one of the embodiments, the partition 5 is fixedly connected inside the housing 1 by welding to enhance the sealing effect of the joint. The design of this mode can fully guarantee the baffle to the effect of blockking up of hot-blast stream, forces the hot-blast stream to flow along the design direction. Of course, it is equally possible that the energy-absorbing plate may also be fixedly connected inside the housing by means of welding.
In one embodiment, the lower inner side of the housing where the air inlet 2 and the air outlet 3 are located is provided with an energy absorbing plate 6, which is located below the air inlet and the air outlet. Fully ensures the carbon powder impact effect and the energy loss effect.
In another embodiment, the bottom of the energy absorbing plate at the bottom of the inner side of the housing is higher than the dust box, which extends to the partition plate, based on the design principle of the above embodiment. And extends to the shell below the air inlet and the air outlet. Of course, in another specific embodiment, guide plates for obliquely arranging the carbon powder into the dust collecting box when the carbon powder enters are arranged between the partition plate and the dust collecting box and between the air inlet and the air outlet and the dust collecting box.
In another embodiment, the energy absorbing plate 6 comprises a plate body 61 based on the design principle of the above embodiment, and the plate body 6 is provided with a through hole 62 for enhancing the energy absorbing effect and increasing the energy loss. Specifically, in one embodiment, the diameter of the through hole is much larger than the diameter of the toner dust. More specifically, the through holes 62 are uniformly distributed in the energy absorbing plate body. The number and the aperture size are designed according to the strength of the plate body and the wind quantity and the wind speed.
Based on the design principle of the specific embodiment, the collecting method of the generator carbon powder collecting device comprises the following steps:
a. an air inlet and an air outlet are arranged at the upper parts of two sides of the shell of the collecting device, and a baffle plate is welded at the top and the bottom of the inner side of the shell in a crossing way;
b. when the partition plates are welded, the bottom of the partition plate at the top of the shell is lower than the top of the partition plate at the bottom of the shell, and an S-shaped hot air flow channel is formed through the partition plates and the inner cavity of the shell;
c. the energy absorbing plates with through holes are arranged on the two sides of the partition plate, the inner side of the shell below the air inlet and the inner side of the shell below the air outlet;
d. the bottom of the shell is provided with a dust collecting box, the dust collecting box extends to the partition plate and the shell, so that carbon dust with insufficient kinetic energy in the flowing process can impact the energy absorbing plate and the carbon dust with energy loss caused by the impact of the energy absorbing plate through holes on the partition plate naturally falls into the dust collecting box under the action of gravity;
e. and introducing hot air flow from the air inlet, carrying out the inside of the shell in a natural state, and discharging the hot air flow from the air outlet to finish the collection of carbon powder.
In another embodiment, the number of partitions at the top of the housing is 1 more than the number of partitions at the bottom of the housing in step a, so that the partitions near the air inlet and the air outlet are at the top of the housing. The mode can guarantee that the hot air flow entering is fully blocked, so that the hot air flows downwards to play an effective buffering role, and in addition, the space inside the device can be fully utilized by adopting the design at the position close to the air outlet, so that the device has an obvious effect on the volume miniaturization of the device.
In another embodiment, the cross-sectional area of the air inlet is smaller than the cross-sectional area of the partition in step a, so as to ensure that the hot air flow impinges on the partition sufficiently. Because the caliber of the air inlet is smaller, the hot air flow is converted into a larger cavity from a small caliber after entering the shell, and the kinetic energy of the air is effectively reduced, so that the kinetic energy of the hot air flow driving carbon powder to move is reduced, and the carbon powder dust with larger diameter directly falls into the dust collecting box.
In another embodiment, in the design principle based on the above embodiment, the diameter of the through hole is far greater than the diameter of the carbon dust in step c so as to avoid blocking the through hole by accumulating the carbon dust and increasing the load of the energy absorbing plate due to overlarge air quantity.
Specifically, other movement tracks combined with the carbon powder can be seen in fig. 1, 3 and 4.
In this embodiment, the kinetic energy of the hot air flow is reduced by using the design of the multiple-layer separator mechanism, and in practical application, the kinetic energy is reduced after the flow speed of the air flow is reduced, so that the mixed impurities in the air, especially the dust with a slightly heavy weight, can naturally fall under the action of gravity. In the design, the baffle mechanism mainly achieves two purposes, namely, the arrangement of the baffle mechanism is adopted to prolong the flow path of hot air flow, so that the energy of the hot air flow is effectively lost; and secondly, the baffle mechanism is used for blocking hot air flow and is used for impacting dust in the hot air flow, and energy loss is obvious in the impacting process. The design of the two purposes is based on the low kinetic energy of the gas, which enables separation between the gas and the dust. In the carbon powder collecting device of the current turbo generator, the means adopted generally is the design of an air draft mechanism and a filter plate, and the traditional technology is adopted to increase the load of the filter screen and shorten the maintenance period at the same time, and meanwhile, the equipment is large in size and has larger requirements on the installation area. The traditional collecting device increases the kinetic energy of hot air flow so as to realize the emission of gas and the filtration of carbon powder, the design adopts natural gravity without external power, and in the actual collecting process, the energy loss of hot air flow is increased as much as possible, thereby realizing the design of simple structure, energy consumption saving, convenient installation and maintenance and small device volume, and having remarkable contribution and economic benefit in the field of turbo generators
Example 2
The utility model provides a generator carbon dust collection device, as shown in fig. 3, including having the first casing 11 that is used for the circulation of hot air cavity, be provided with first air intake 12 and first air outlet 13 on this first casing 11, this first casing 11 bottom is provided with the first dust collection box that is used for collecting the carbon dust, first casing 11 is inside and lie in first dust collection box top still be provided with be used for filtering the filter screen 15 of carbon dust, still be provided with the motor 16 that is used for the convulsions between filter screen 15 and first air outlet 13, be provided with fan 18 between this motor 16 and the filter screen 15, take out first air outlet through motor 16 and 18 with the hot air, still be provided with the switch board that is used for controlling motor pivoted on the first casing 11.
In particular, the filter screen 15 may also be a filter bag or a filter cartridge.
The embodiment is a carbon powder collecting device adopted by the current turbo generator, hot air containing carbon powder enters the carbon powder collecting device from a first air inlet, the hot air is separated from the carbon powder through the filtering action of a filter screen, the hot air continuously flows to a first air outlet through the filter screen, the carbon powder is attached to the filter screen, and the more the carbon powder is accumulated along with the time, the more the carbon powder falls into a first dust collecting box under the action of gravity. The wind resistance of the filter screen is larger, and the wind resistance is larger after carbon powder is adsorbed. Therefore, in order to prevent the wind resistance from influencing the wind quantity of the collecting ring too much, the existing carbon powder collecting device further comprises a fan, a motor, a control cabinet and other devices which are arranged at the air outlet for exhausting.
The carbon powder collecting device is large in size, the filter screen is replaced, carbon powder in the first dust collecting box is cleaned, an overhaul space is reserved beside the device, meanwhile, the space is reserved beside the device, and the space requirement on a power generation plant is very large. The device also generates larger noise pollution when running due to the fan and the motor. When the control cabinet or the motor malfunctions during the operation of the device, the whole carbon powder collecting device becomes a large wind resistance element, so that the wind quantity is rapidly reduced, the collector ring is overheated or burnt, and the safe operation of the generator is seriously endangered. The filter screen is easy to be blocked, the carbon powder removing efficiency of the carbon powder collecting device is reduced after the carbon powder collecting device is operated for a period of time, the filter screen is required to be regularly maintained, cleaned or replaced, and the service life of the filter screen is short.
To sum up:
1. the design of the invention does not need to add a fan, realizes 'non-activity' carbon powder collection by means of a natural physical principle, does not need an electric control device, is more convenient to maintain, has strong safety and reliability, does not have hidden trouble and has inherent high safety and reliability;
2. the design of the invention does not need regular maintenance, cleaning or replacement when in operation, because the diameter of the through hole is far larger than the diameter of the carbon dust, and the energy loss of the hot air flow is combined, the through hole is not blocked, the load of the baffle mechanism is not increased, and therefore, the carbon dust in the dust box is only required to be cleaned regularly;
3. the invention adopts the S-shaped gas channel to increase the gas path, adopts the passive carbon powder collecting mode, not only saves the energy consumption, but also effectively reduces the volume of the device by combining the design without a fan, and the invention can be arranged at the top of a factory building due to small space of the device, has less occupation of the effective space of the factory building, can not generate noise by utilizing the design mode, avoids noise pollution, reduces the installation environment, and simultaneously, the optimization of the structure effectively reduces the manufacturing cost and the maintenance cost.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (8)
1. The utility model provides a generator carbon dust collection device which characterized in that: the device comprises a shell (1) with a collector ring hot air flow channel containing carbon powder, wherein an air inlet (2) for introducing the hot air flow and an air outlet (3) for discharging the hot air flow are respectively arranged at two sides of the upper part of the shell (1), a plurality of non-ventilation baffle mechanisms are arranged on the top and the bottom of the inner side of the shell (1), a dust collecting box (4) for collecting the carbon powder is also arranged at the bottom of the shell (1), and the collector ring hot air flow containing the carbon powder flows up and down through the baffle mechanisms and makes the carbon powder fall into the dust collecting box after colliding with the baffle plates;
the baffle mechanisms are respectively arranged on the top and the bottom side walls of the inner side of the shell (1) and are arranged in an equidistant and crossed manner, and the height of the bottom of the baffle mechanism positioned at the top of the shell is lower than that of the top of the baffle mechanism positioned at the bottom of the shell, so that the collector ring hot air flow channel forms an S-shaped channel;
the baffle mechanism comprises a baffle (5) fixed on the inner side wall of the shell, and an energy absorption plate (6) is arranged on one side of the baffle (5) facing the air inlet.
2. A generator carbon powder collection device as defined in claim 1, wherein: the bottom of the baffle mechanism at the top of the shell is lower than the bottom of the air inlet.
3. A generator carbon powder collection device as defined in claim 1, wherein: an energy absorption plate (6) is arranged on one side of the partition plate (5) facing the air outlet.
4. A generator carbon powder collection device as defined in claim 1, wherein: the partition board (5) is fixedly connected inside the shell (1) through welding so as to strengthen the sealing effect of the joint.
5. A generator carbon powder collection device as defined in claim 1, wherein: the inner side of the lower part of the shell where the air inlet (2) and the air outlet (3) are positioned is provided with an energy absorbing plate (6) which is positioned below the air inlet and the air outlet.
6. A generator carbon dust collection device as claimed in claim 1, 3 or 5, wherein: the energy absorption plate (6) comprises a plate body (61), and through holes (62) for enhancing the energy absorption effect and increasing the energy loss are formed in the plate body (61).
7. A collecting method of a generator carbon powder collecting device as claimed in any one of claims 1 to 6, characterized in that: the method comprises the following steps:
a. an air inlet and an air outlet are arranged at the upper parts of two sides of the shell of the collecting device, and a baffle plate is welded at the top and the bottom of the inner side of the shell in a crossing way;
b. when the partition plates are welded, the bottom of the partition plate at the top of the shell is lower than the top of the partition plate at the bottom of the shell, and an S-shaped hot air flow channel is formed through the partition plates and the inner cavity of the shell;
c. the energy absorbing plates with through holes are arranged on the two sides of the partition plate, the inner side of the shell below the air inlet and the inner side of the shell below the air outlet;
d. the bottom of the shell is provided with a dust collecting box, the dust collecting box extends to the partition plate and the shell, so that carbon dust with insufficient kinetic energy in the flowing process can impact the energy absorbing plate and the carbon dust with energy loss caused by the impact of the energy absorbing plate through holes on the partition plate naturally falls into the dust collecting box under the action of gravity;
e. and introducing hot air flow from the air inlet, entering the shell in a natural state, and discharging from the air outlet to finish the collection of carbon powder.
8. The collecting method of the generator carbon powder collecting device as claimed in claim 7, wherein: in the step a, the number of the partition boards positioned at the top of the shell is 1 more than that of the partition boards positioned at the bottom of the shell, so that the partition boards near the air inlet and the air outlet are positioned at the top of the shell.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108686437A (en) * | 2018-04-24 | 2018-10-23 | 周柳含 | A kind of pocket type carbon powder filter |
| CN109530049B (en) * | 2018-11-08 | 2021-02-26 | 广州纳宜信息科技有限公司 | Drying and scattering equipment for defective carbon powder |
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