A kind of portable double-cyclone is separated constant speed dust sampler
Technical field
The utility model relates to a kind of sampler, is specifically related to a kind of portable double-cyclone and is separated constant speed dust sampler.
Background technology
In the systems such as boiler, cement in vertical kiln, composite fertilizer's drying, in order to often need to carry out isokinetic sampling to the solid particle in dust-contained airflow to the work efficiency improving system, as in coal-fired power station boiler in order to measure the thermal efficiency of boiler, need to carry out isokinetic sampling to determine the uncompleted burned carbon thermal loss of boiler to the flying dust in smoke evacuation, in cement in vertical kiln and composite fertilizer's drying system, also need the isokinetic sampling carrying out discharging fume to determine the composition of solid particle in smoke evacuation.
In order to realize the sampling of solid particle in dust-contained airflow, often use two kinds of methods at present:
One method adopts impact type fly ash sampler, impact type fly ash sampler is a steel pipe being vertically fixed in dust-contained airflow, steel pipe has one or more sampling window, after solid particle impingement in dust-contained airflow to sampling window, fall under gravity in steel pipe, the solid grain size that impact type fly ash sampler gathers is larger, institute's sample thief representativeness is poor, particularly there is the plugging phenomenon that easily generation is serious in its grey road, after using for a long time, steel pipe is easily worn through, and causes sample not possess representativeness completely.
Another kind method adopts special fly ash constant speed sampler, fly ash constant speed sampler is made up of stopple coupon, Whirlwind cyclone separation vessel, dust-contained airflow is under the suction function of aspiration pump or induced draft fan, Whirlwind cyclone separation vessel is entered along wall tangential direction through stopple coupon, solid particle is thrown on separation vessel wall under the influence of centrifugal force, and fall into the grey funnel of collection along wall by Action of Gravity Field and enter sampling jar, and gas is discharged by fairlead.Constant-speed sampling device of fly ash needs on-the-spot have the aspiration pump or source of the gas that produce negative pressure, uses operation inconvenience, movability and adaptability poor.
Although above-mentioned two kinds of dust samplers can realize the sampling of solid particle in dust-contained airflow, but still there is certain defect, solid particle that impact type fly ash sampler is got is comparatively thick and representative poor, fly ash constant speed sampler needs the aspiration pump or source of the gas that produce negative pressure, use operation inconvenience, movability and adaptability poor, especially when needing frequent sampling, the operation of staff is more inconvenient.
Utility model content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, and provide a kind of portable double-cyclone and be separated constant speed dust sampler, the sampling of this device is representative, and easy to operate, movability and strong adaptability.
For achieving the above object, portable double-cyclone described in the utility model is separated constant speed dust sampler and comprises collection ash can, outer separator cartridge, interior separator cartridge, contour stealth draft tube, gas outlet, connecting sleeve, inward eddy draft tube and extension rod;
Described interior separator cartridge is positioned at outer separator cartridge, the air intake opening of inward eddy draft tube one end is fixed on the side of outer separator cartridge, the gas outlet of the inward eddy draft tube other end is connected with the first air intake opening of interior separator cartridge side through outer separator cartridge, second air intake opening of interior separator cartridge lower end is connected with the inside of outer separator cartridge, interior separator cartridge is connected with outer separator cartridge by inward eddy draft tube, the gas outlet of contour stealth draft tube is connected with the air intake opening of outer separator cartridge upper side, the gas outlet of interior separator cartridge upper end is connected with the inside of outer separator cartridge, the dust export of outer separator cartridge lower end is connected with the entrance of collection ash can, the air intake opening of gas outlet one end passes the end cap of outer separator cartridge upper end and extend in outer separator cartridge, and the air intake opening of described gas outlet one end is positioned at the positive dirction of the gas outlet of separator cartridge upper end, one end of connecting sleeve is connected with the end cap of outer separator cartridge upper end, the gas outlet of the gas outlet other end is passed the side of connecting sleeve and reaches outside connecting sleeve, one end of extension rod is fixed in described connecting sleeve, the other end of extension rod passes connecting sleeve and reaches outside connecting sleeve,
Described inward eddy draft tube and contour stealth draft tube are sped structure.
The tube wall of described contour stealth draft tube gas outlet and the side of outer separator cartridge tangent;
The tube wall of described inward eddy draft tube gas outlet and the side of interior separator cartridge tangent.
The axis of the axis of described interior separator cartridge, the axis of outer separator cartridge and gas outlet air intake opening is located along the same line.
The xsect of described contour stealth draft tube air intake opening is rectangle;
The xsect of described inward eddy draft tube air intake opening is rectangle.
The top of described outer separator cartridge is cylindrical structural, and the bottom of outer separator cartridge is conical structure.
The top of described interior separator cartridge is cylindrical structural, and the bottom of interior separator cartridge is conical structure.
Also comprise collection ash can connector, the upper end end cap of collection ash can connector is connected with the dust export of outer separator cartridge lower end, entrance on the end cap of collection ash can connector upper end is positioned at the center of collection ash can connector upper end end cap, the lower end of collection ash can connector is provided with internal thread, and the entrance of collection ash can is provided with the external thread matched with described internal thread.
Described connecting sleeve upper side is provided with some pilot holes, is fixed with nut outside pilot hole, and extension rod is connected with connecting sleeve through nut and pilot hole by bolt.
The quantity of described pilot hole is 3.
Described gas outlet is made up of elbow, pipe and tapered tube, the two ends of pipe are connected with one end of elbow and one end of tapered tube respectively, the air intake opening of the tapered tube other end extend in outer separator cartridge through the end cap of outer separator cartridge upper end, the side of connecting sleeve is provided with vent port, and the gas outlet of the elbow other end reaches outside connecting sleeve through the vent port of connecting sleeve side.
The utility model has following beneficial effect:
Portable double-cyclone described in the utility model is separated constant speed dust sampler in the course of the work, realize two-stage by interior separator cartridge and outer separator cartridge to be separated, and the gas after separation is discharged from gas outlet, the dust granule separated enters into collection ash can, because the axial velocity pointing to bottom containing the air-flow of dust is always greater than the final Sedimentation Velocity of particle, also can smoothly solid particle be entered in collection ash can so the utility model is not vertical placement.Inward eddy draft tube and contour stealth draft tube make the portion gas after purifying mix with raw gas at the top of the bottom of interior separator cartridge and outer separator cartridge respectively simultaneously, add concentration and the spin intensity of gas in interior separator cartridge and outer separator cartridge of solid particle in separated gas, good separating effect.In addition, inward eddy draft tube and contour stealth draft tube are sped structure, thus the solid particle that the particle diameter that can trap is less, can the utility model be regulated to extend into the degree of depth in flue by extension rod as required in addition, thus make the dust of trapping representative, simultaneously simple to operate, adaptability and movability strong.
Further, gas outlet is made up of elbow, pipe and conically shaped, a part of rotating energy of purifying gas flow can be converted to static pressure, reduces the interior vortical pressure loss of 15% ~ 20%.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side view of the present utility model;
Fig. 3 is vertical view of the present utility model;
Fig. 4 is the structural representation of embodiment one in the utility model;
Fig. 5 is the structural representation of embodiment two in the utility model.
Wherein, 1 for collection ash can, 2 for integrate ash can connector, 3 be outer separator cartridge, 4 as contour stealth draft tube, 5 be interior separator cartridge, 6 as gas outlet, 7 as pilot hole, 8 as connecting sleeve, 9 as vent port, 10 as inward eddy draft tube, 11 as extension rod.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
With reference to figure 1, Fig. 2 and Fig. 3, portable double-cyclone described in the utility model is separated constant speed dust sampler and comprises collection ash can 1, outer separator cartridge 3, interior separator cartridge 5, contour stealth draft tube 4, gas outlet 6, connecting sleeve 8, inward eddy draft tube 10 and extension rod 11, described interior separator cartridge 5 is positioned at outer separator cartridge 3, the air intake opening of inward eddy draft tube 10 one end is fixed on the side of outer separator cartridge 3, the gas outlet of inward eddy draft tube 10 other end is connected with the first air intake opening of interior separator cartridge 5 side through outer separator cartridge 3, second air intake opening of interior separator cartridge 5 lower end is connected with the inside of outer separator cartridge 3, interior separator cartridge 5 is connected with outer separator cartridge 3 by inward eddy draft tube 10, the gas outlet of contour stealth draft tube 4 is connected with the air intake opening of outer separator cartridge 3 upper side, the gas outlet of interior separator cartridge 5 upper end is connected with the inside of outer separator cartridge 3, the dust export of outer separator cartridge 3 lower end is connected with the entrance of collection ash can 1, the air intake opening of gas outlet 6 one end passes the end cap of outer separator cartridge 3 upper end and extend in outer separator cartridge 3, and the air intake opening of described gas outlet 6 one end is positioned at the positive dirction of the gas outlet of separator cartridge 5 upper end, one end of connecting sleeve 8 is connected with the end cap of outer separator cartridge 3 upper end, the gas outlet of gas outlet 6 other end is passed the side of connecting sleeve 8 and reaches outside connecting sleeve 8, one end of extension rod 11 is fixed in described connecting sleeve 8, the other end of extension rod 11 passes connecting sleeve 8 and reaches outside connecting sleeve 8, inward eddy draft tube 10 and contour stealth draft tube 4 are sped structure.
It should be noted that, the tube wall of described contour stealth draft tube 4 gas outlet and the side of outer separator cartridge 3 tangent; The tube wall of inward eddy draft tube 10 gas outlet and the side of interior separator cartridge 5 tangent, the axis of the axis of interior separator cartridge 5, the axis of outer separator cartridge 3 and gas outlet 6 air intake opening is located along the same line, and the xsect of contour stealth draft tube 4 air intake opening is rectangle; The xsect of inward eddy draft tube 10 air intake opening is rectangle.The top of outer separator cartridge 3 is cylindrical structural, and the bottom of outer separator cartridge 3 is conical structure; The top of interior separator cartridge 5 is cylindrical structural, and the bottom of interior separator cartridge 5 is conical structure.The utility model also comprises collection ash can connector 2, entrance on the end cap of collection ash can connector 2 upper end is connected with the dust export of outer separator cartridge 3 lower end, entrance on the end cap of collection ash can connector 2 upper end is positioned at the center of collection ash can connector 2 upper end end cap, the lower end of collection ash can connector 2 is provided with internal thread, the entrance of collection ash can 1 is provided with the external thread matched with described internal thread, described connecting sleeve 8 upper side is provided with some pilot holes 7, nut is fixed with outside pilot hole 7, extension rod 11 is connected with connecting sleeve 8 through nut and pilot hole 7 by bolt, the quantity of pilot hole 7 is 3.Described gas outlet 6 is made up of elbow, pipe and tapered tube, the two ends of pipe are connected with one end of elbow and one end of tapered tube respectively, the air intake opening of the tapered tube other end extend in outer separator cartridge 3 through the end cap of outer separator cartridge 3 upper end, the side of connecting sleeve 8 is provided with vent port 9, and the gas outlet of the elbow other end reaches outside connecting sleeve 8 through the vent port 9 of connecting sleeve 8 side.
Specific works process of the present utility model is:
The air-flow that Part I contains dust forms vortex gas-flow through inward eddy draft tube 10, and enter into interior separator cartridge 5, and in interior separator cartridge 5, be subject to the effect of centrifugal force, do adherent rotation vertically at the limit wall of interior separator cartridge 5 to move upward, the gas now reaching separation requirement enters into gas outlet 6, and discharged by gas outlet 6, after air-flow containing dust granule and the Part II of coming in from contour stealth draft tube 4 conflux containing the air-flow of dust, be subject to acting in outer separator cartridge 3 of centrifugal force to be separated, wherein, the a part of dust granule separated enters into collection ash can 1, air-flow carry another part dust granule and Part I conflux containing the air-flow of dust after again in continue to be separated in separator cartridge 5.
Embodiment one
With reference to figure 4, in the present embodiment, the utility model is arranged vertically in dust-contained airflow, inward eddy draft tube 10 in the utility model and contour stealth draft tube 4 are just to carrying out flow path direction, gas outlet 6 is back to carrying out flow path direction, solid particle in dust-contained airflow falls under the influence of centrifugal force and collects ash can 1 after outer separator cartridge 3 purifies with interior separator cartridge 5 twin-stage, purified gas is discharged from gas outlet 6, can be completed the sampling work of diverse location by the degree of depth regulating extension rod 11 to insert dust-contained airflow.
Embodiment two
With reference to figure 5, in the present embodiment by horizontally disposed for the utility model in dust-contained airflow, inward eddy draft tube 10 in the utility model and contour stealth draft tube 4 are just to carrying out flow path direction, gas outlet 6 is back to carrying out flow path direction, solid particle in dust-contained airflow falls under the influence of centrifugal force and collects ash can 1 after outer separator cartridge 3 purifies with interior separator cartridge 5 twin-stage, purified gas is discharged from gas outlet 6, can be completed the sampling work of diverse location by the degree of depth regulating extension rod 11 to insert dust-contained airflow.Axial velocity due to dust-contained airflow sensing bottom is always greater than the final Sedimentation Velocity of particle, also can be entered by solid particle smoothly in collection ash can 1 so cyclone separator is not vertical placement.