CN216594390U - Integrated high-temperature smoke dust sampling pipe - Google Patents
Integrated high-temperature smoke dust sampling pipe Download PDFInfo
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- CN216594390U CN216594390U CN202123055866.7U CN202123055866U CN216594390U CN 216594390 U CN216594390 U CN 216594390U CN 202123055866 U CN202123055866 U CN 202123055866U CN 216594390 U CN216594390 U CN 216594390U
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Abstract
The application relates to an integrated high-temperature smoke dust sampling pipe which comprises an S-shaped pitot tube assembly, a high-temperature sampling tube assembly, a support, a cooling water pipe, an outer header pipe, a seal head and an end cover, wherein the S-shaped pitot tube assembly and the high-temperature sampling tube assembly penetrate through two ends of the outer header pipe; the cooling water pipe is arranged close to the inner side wall of the outer header pipe; a support is arranged between the cooling water pipe and the high-temperature sampling pipe assembly, so that the high-temperature sampling pipe assembly is ensured to be positioned in the middle of the outer header pipe; the front end of the outer main pipe is provided with an end socket, and the tail end of the outer main pipe is provided with an end cover, so that the two ends of the outer main pipe are sealed; the front ends of the S-shaped pitot tube assembly and the high-temperature sampling tube assembly extend out of the seal head for sampling. The smoke dust sampling monitoring device can be suitable for smoke dust sampling monitoring in a high-temperature special environment of a flue.
Description
Technical Field
The application relates to smoke and dust sampling field, concretely relates to integration high temperature smoke and dust sampling pipe.
Background
With the development of the industry, the economic soaring is brought, and meanwhile, the environment is also greatly burdened. Environmental pollution, especially atmospheric pollution, is continuously deepened, and the normal life and the body health of people are seriously influenced. The emission of the smoke of the fixed pollution source is one of the main sources of the air pollution gas, various coal-fired boilers are monitored along with the development of the environmental monitoring industry of China, smoke sampling instruments are used, even if smoke online monitoring systems (CEMS) are installed on some large boilers, the measurement results need to be obtained by a method from the source to the national standard, and the portable smoke sampling instrument can provide a calibration tool for the CEMS. The portable smoke dust sampling instrument can not be eliminated due to the popularization of the CEMS system, and only can be used with the CEMS system
The CEMS systems are complementary and coexist for long periods. Under some special high-temperature working conditions, the smoke and dust and flue gas online monitoring system is inconvenient to install, and a special portable smoke and dust sampler capable of resisting high temperature is needed to complete the monitoring work of a fixed pollution source.
In the industries of environmental protection, metallurgy, building materials, chemical industry, power … … and the like, in order to perform environmental evaluation, equipment design and modification, and working condition technical analysis, the smoke and dust and flue gas emission condition of a chimney of an industrial coal-fired boiler with a fixed pollution source needs to be monitored frequently, and the smoke and dust concentration, the smoke and dust emission amount and thermal parameters of related pipelines are measured. In flue or pipeline testing, temperature, humidity, full pressure, static pressure, dynamic pressure, airflow velocity and flow are usually measured to grasp the pipeline working condition state.
When the temperature of the flue is 500-1300 ℃, no matter the smoke and dust online monitoring system (CEMS) or the common portable smoke and dust sampling instrument can not monitor under the severe working condition, and the sensor of the online monitoring system (CEMS) can not bear the long-term online high temperature; the smoke sampling pipe of the common portable instrument can be detached, scattered and damaged after the temperature of the smoke sampling pipe exceeds 800 ℃, and the subsequent monitor can not bear the high temperature.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of this application provides an integration high temperature smoke and dust sampling pipe, and the design has the cooling delivery pipe, provides continuous running water cooling in succession, and hot water overflows by the delivery port is automatic, makes intraductal cooling environment always be in relative low temperature state, through the heat balance exchange, makes sampling pipe normal work under high temperature state.
In order to achieve the above purpose, the present application provides the following technical solutions:
the embodiment of the application provides an integrated high-temperature smoke dust sampling pipe, which comprises an S-shaped pitot tube component, a high-temperature sampling pipe component, a support, a cooling water pipe, an outer main pipe, a seal head and an end cover,
the S-shaped pitot tube assembly and the high-temperature sampling tube assembly penetrate through two ends of the outer main pipe;
the water inlet end of the cooling water pipe extends to the front end of the outer header pipe to cool the high-temperature sampling pipe assembly;
a support is arranged between the cooling water pipe and the high-temperature sampling pipe assembly, so that the shaking of the water outlet at the water inlet end of the cooling water pipe is avoided;
the front end of the outer main pipe is provided with a seal head, and the tail end of the outer main pipe is provided with an end cover, so that two ends of the outer main pipe are sealed;
the front ends of the S-shaped pitot tube assembly and the high-temperature sampling tube assembly extend out of the seal head for sampling.
Furthermore, a sliding sleeve handle assembly is arranged below the outer main pipe close to the front end, and a fixed handle assembly is arranged below the outer main pipe close to the tail end.
Furthermore, an end cover extends out of a pitot tube connecting nozzle of the S-shaped pitot tube assembly, and an end cover extends out of an air duct output end of the high-temperature sampling tube assembly.
Furthermore, the water inlet of the cooling water pipe extends out of the end cover, and the end cover is further provided with a water outlet for matching with the water inlet to realize that cooling water fully cools the high-temperature sampling pipe assembly in the outer main pipe.
The high-temperature sampling pipe component comprises a sampling nozzle, a sampling head component, a guide cylinder, a corundum filter cylinder, a filter cylinder sleeve and a filter cylinder support component,
the sampling nozzle is arranged at the front end part of the sampling head assembly and is used for extending into a flue to sample smoke dust;
the tail part of the sampling head assembly is connected to the input end of the filter cartridge sleeve;
the output end of the filter cartridge sleeve is connected with the gas guide pipe of the high-temperature sampling pipe assembly;
a corundum filter cylinder for filtering sampled smoke is arranged in the filter cylinder sleeve;
the periphery of the corundum filter cylinder is provided with a guide cylinder for guiding the corundum filter cylinder;
and the tail part of the corundum filter cylinder is provided with a filter cylinder support component for supporting the corundum filter cylinder.
Furthermore, the front part of the corundum filter cylinder is close to the tail part of the sampling head assembly, the front part of the corundum filter cylinder is opened, and the tail part of the corundum filter cylinder is closed.
The sampling head component comprises a sampling mouth seat, a bent pipe and a head cover,
the sampling nozzle base is used for mounting a sampling nozzle;
the tail part of the sampling nozzle seat is connected with the head part of the bent pipe;
the tail part of the bent pipe is connected with a joint cover;
the head cover is arranged at the front end of the filter cylinder sleeve to seal the filter cylinder sleeve;
the front ends of the head cover and the filter cylinder sleeve are locked through a locking gland;
an asbestos sealing ring is arranged at the contact part of the head cover and the front end of the corundum filter cylinder;
the filter cartridge sleeve is internally provided with a connecting ring which is tightly attached to the inner side wall of the filter cartridge sleeve and is contacted with the front end of the guide cylinder.
Further, the filter cartridge holder assembly comprises a coupling seat, a high-temperature spring and a filter cartridge holder,
the connecting seat is used for connecting the tail part of the sleeve of the filter cylinder and the front end of the air duct in a sealing way;
a high-temperature spring is arranged on one side of the connecting seat, which is positioned in the filter cartridge sleeve;
and a filter cartridge support used for supporting the tail part of the corundum filter cartridge is arranged at the top end of the high-temperature spring.
Furthermore, the filter cartridge support comprises a spherical cavity, a vent groove is formed in the side wall of the spherical cavity, an annular groove convenient for mounting the top end of the high-temperature spring is formed in the bottom of the filter cartridge support, a spring groove convenient for mounting the bottom end of the high-temperature spring is formed in the connecting seat, and a weight reduction groove for reducing weight is further formed in the connecting seat.
Furthermore, the guide cylinder comprises a front end annular ring which is tightly attached to the front end of the corundum filter cylinder and a tail end annular ring which is tightly attached to the tail end of the corundum filter cylinder, the diameter of the front end annular ring is larger than that of the tail end annular ring, and a guide strip is connected between the front end annular ring and the tail end annular ring.
Compared with the prior art, the utility model has the beneficial effects that:
1. this integration high temperature smoke and dust sampling pipe design has the cooling delivery pipe, provides continuous running water cooling, and hot water spills over by the delivery port is automatic, makes intraductal cooling environment always be in relative low temperature state, through the heat balance exchange, makes the sampling pipe normally work under high temperature state.
2. The integrated high-temperature smoke dust sampling pipe is applied to a high-temperature spring developed by a metallurgical research institution
The normal elastic range is kept at 1000 ℃, and the corundum filter cylinder can automatically bounce when taken out by using the high-temperature resistant spring, is convenient to take out and is not easy to damage the filter cylinder; moreover, under the action of the spring, pretightening force is provided for the contact surface of the filter cylinder and the sealing ring, the air tightness is ensured, and the short circuit of air flow is prevented; the repeated use of the sealing element is facilitated.
3. This integration high temperature smoke and dust sampling pipe design has fixed handle, and the handle is directional unanimous with sampling mouth opening direction, has avoided sampling pipe to insert not knowing the sampling mouth direction behind the flue, is favorable to the sampling mouth to aim at the air current direction, has reduced the sampling error, has improved the degree of accuracy of smoke and dust sampling concentration.
4. The integrated high-temperature smoke dust sampling pipe is provided with a sliding sleeve handle, can slide and can be radially compressed and positioned, and the integrated high-temperature smoke dust sampling pipe is favorable for carrying with heavy weight; the handle is made of high-strength heat-insulating materials, so that the handle has a good heat-insulating effect and improves the use safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic diagram of the application of the present invention;
FIG. 2 is a schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the overall structure of the present invention, in the direction of K;
FIG. 4 is a schematic top view of the overall structure of the present invention;
FIG. 5 is a schematic view of a high temperature sampling tube assembly according to the present invention;
FIG. 6 is a schematic cross-sectional view of a filter cartridge holder assembly of the present invention;
FIG. 7 is a schematic top view of a filter cartridge holder assembly according to the present disclosure;
FIG. 8 is a schematic view of a filter cartridge holder configuration of the present invention;
FIG. 9 is a schematic top view of a filter cartridge holder according to the present invention;
FIG. 10 is a schematic view of a coupling seat according to the present invention;
FIG. 11 is a schematic view of a guide cylinder according to the present invention;
FIG. 12 is a schematic view of the structure of the sampling head assembly of the present invention;
FIGS. 13 and 14 are front and side views of the sliding handle assembly of the present invention;
FIG. 15 is a schematic view of an S-shaped pitot tube assembly according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The terms "first," "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily being construed as indicating or implying any actual such relationship or order between such entities or actions.
In view of the shortcomings in the prior art, as shown in fig. 1-15, embodiments of the present application provide an integrated high-temperature smoke sampling pipe.
Referring to fig. 2 to 4, fig. 2 is a schematic view of an integrated high-temperature smoke sampling pipe provided in an embodiment of the present application, including an S-shaped pitot tube assembly 21, a high-temperature sampling pipe assembly 22, a support 23, a cooling water pipe 24, an outer main pipe 20, a sealing head 25, and an end cover 28,
the S-shaped pitot tube assembly 21 and the high-temperature sampling tube assembly 22 penetrate through two ends of the outer main pipe 20;
the water inlet end of the cooling water pipe 24 extends to the front end of the outer main pipe 20 to cool the high-temperature sampling pipe assembly 22;
a support 23 is arranged between the cooling water pipe 24 and the high-temperature sampling pipe assembly 22, so that the water inlet end of the cooling water pipe 24 is prevented from shaking when water flows out;
the front end of the outer main pipe 20 is provided with a seal head 25, and the tail end of the outer main pipe 20 is provided with an end cover 28, so that two ends of the outer main pipe 20 are sealed;
the front ends of the S-shaped pitot tube component 21 and the high-temperature sampling tube component 22 extend out of the end socket 25 for sampling.
As shown in fig. 3, 13 and 14, a sliding handle assembly 26 is arranged below the outer main pipe 20 near the front end, and a fixed handle assembly 27 is arranged below the outer main pipe 20 near the rear end. The handle assembly consists of a lantern ring, a threaded connection seat, a cover hoop, a pin, a threaded rod and a handle, and two sets of handle assemblies are used in the integrated high-temperature smoke dust sampling pipe, one is a fixed handle assembly 27, and the lantern ring is welded on an outer main pipe and used for pointing and weight holding of a sampling nozzle; the other is a sliding handle assembly 26, the collar being free to slide on the outer manifold, in cooperation with the fixed handle assembly for weight retention. A lantern ring: one fixed and one slidable for nesting the outer manifold. A screw thread connection seat: the handle screw rod is used for connecting and radially pressing and positioning. Covering and hooping: for preventing breakage of the handle edge. Pin: for preventing the screw from moving and rotating in the handle. Threaded rod: the handle is connected with the lantern ring and is radially pressed and positioned. A handle: is made of high-strength insulating material and is used for heat insulation and holding.
Referring to fig. 2 and 15, the pitot tube nipple 210 of the S-shaped pitot tube assembly 21 extends out of the end cap 28, and the output end of the airway tube 220 of the high temperature sampling tube assembly 22 extends out of the end cap 28.
The S-shaped pitot tube is formed by connecting two identical stainless steel tubes in parallel, the measuring end is provided with two openings in opposite directions, and during measurement, the opening facing the airflow is equivalent to full pressure, and the opening facing away from the airflow is equivalent to static pressure. The pitot tube front end was bent as needed to integrate the integrated structure, see fig. 15. The S-shaped pitot tube is required to correct the coefficient in the wind tunnel, and the coefficient is generally between 0.82 and 0.85. The differential pressure formed by the total pressure and the static pressure measured by the S-shaped pitot tube is the dynamic pressure of the airflow, the airflow speed can be automatically calculated by the smoke dust sampling instrument matched with the S-shaped pitot tube, and then the smoke dust sampling instrument provides adaptive smoke sampling flow according to the change of the flow speed, and automatically tracks the smoke flow speed for constant-speed sampling.
The flow rate calculation formula is as follows:
a flue gas flow rate, m/s; kp..
Pd.. smoke dynamic pressure, Pa; the smoke density, kg/m3
The water inlet 240 of the cooling water pipe 24 extends out of the end cover 28, and the end cover 28 is further provided with a water outlet 241, so as to match the water inlet 240 to realize that the cooling water fully cools the high-temperature sampling pipe assembly 22 in the outer main pipe 20.
In the smoke test technique, as shown in fig. 2 to 4, in order to obtain a representative smoke sample, a constant sampling speed is required, i.e. the flow rate of gas drawn into a sampling nozzle (sampling speed) is equal to the flow rate of smoke at a sampling point of a flue. Sampling rates greater or less than the air flow rate at the sampling point will skew the sampling results. When the integrated high-temperature smoke sampling pipe is designed and manufactured, an S-shaped pitot tube 21 and the high-temperature smoke sampling pipe are integrated into a whole 22, the pitot tube is used for measuring smoke dynamic pressure, and the smoke flow rate is calculated through a smoke instrument; the distance between the mouth of the pitot tube and the sampling nozzle is preferably within the range of 20-30 mm, and if the distance is too short, the airflow streamline is disturbed; too large a distance, isokinetic sampling samples become less representative. The design of the dome end socket 25 of the outer header pipe 20 is to reduce the influence on the sampling point flow velocity field; the cooling water pipe 24 is designed in the outer header pipe 20, the cooling water pipe 24 extends to the head, cooling water (tap water) with certain water pressure is supplied for rapidly cooling the head, high-temperature deformation of head parts and failure of a high-temperature spring are prevented, the water capacity of the outer header pipe 20 is designed according to the fact that a sampling pipe is cooled to be below 800 ℃, the diameter of the outer header pipe is 100-120 mm, and the length of the outer header pipe is 1800-2500 mm; the fixed handle assembly 27 is welded on the outer main pipe 20, the direction of the handle is consistent with the direction of the sampling nozzle, the error is controlled within 3 degrees, and the direction of the handle is specified so that the sampling nozzle can be adjusted to be opposite to the direction of air flow through the direction of the fixed handle after the sampling pipe is inserted into the flue; the other function of the fixed handle 27 is carrying weight. The sliding handle assembly 26 is free to slide on the outer manifold 20 to a replacement position, positioned by radial compression. During sampling of smoke dust, equal-area annular point distribution sampling is divided according to the diameter of a flue, so that the position of a sliding handle needs to be changed by 26, the sliding handle is matched with a fixed handle to carry, the weight is kept, and the position of a sampling point needs to be changed. The end cover 28 of the outer main pipe 20 is provided with a water outlet 241 and a water inlet 240, wherein the water outlet 241 is arranged above the water inlet 240, so that a certain amount of water is contained in the outer main pipe 20 during sampling to cool the sampling pipe body; when sampling at vertical flue, the back is accomplished in the sampling, need rotate smoke and dust sampling pipe 180, makes the sampling mouth up, extracts the flue with the smoke and dust sampling pipe, prevents that sampling nose portion smoke and dust from dropping the loss under the action of gravity, and at this moment the delivery port is under, pulls out the rubber tube of intaking, and the hot water prolongs the delivery port pipe and discharges rapidly in the house steward under the atmospheric pressure effect, alleviates the weight of integration high temperature smoke and dust sampling pipe, and the transport of being convenient for takes out the sampling and strains a section of thick bamboo.
As shown in fig. 5, the high temperature sampling tube assembly 22 includes a sampling nozzle 221, a sampling head assembly 222, a guide cylinder 226, a corundum filter cartridge 227, a filter cartridge sleeve 228, and a filter cartridge holder assembly 229,
the sampling nozzle 221 is arranged at the front end part of the sampling head assembly 222 and is used for extending into a flue to sample smoke;
the rear of the sampling head assembly 222 is connected to the input end of cartridge sleeve 228;
the output end of the filter cartridge sleeve 228 is connected with the air duct 220 of the high-temperature sampling tube assembly 22;
a corundum filter cylinder 227 for filtering sampled smoke is arranged in the filter cylinder sleeve 228;
a guide cylinder 226 for guiding the corundum filter cylinder 227 is installed on the outer periphery of the corundum filter cylinder 227;
the end of the corundum filter cartridge 227 is provided with a filter cartridge holder assembly 229 for holding the corundum filter cartridge 227.
Usually a smoke sampling pipe is provided with
The four-specification sampling nozzles 221 have limited air suction capacity of the sampling pump, so that the sampling flow works in the effective working section of the sampling instrument during constant-speed sampling, and the diameter of the sampling nozzle is selected to adapt to constant-speed sampling at different flow rates.
The filter cartridge holder component 229 is used for holding the corundum filter cartridge 227, and when the locking gland 223 is locked and pressed down, under the action of the spring, pressing force is provided for the upper end face of the filter cartridge, so that the filter cartridge and the asbestos seal ring 224 are tightly pressed and sealed, and the short circuit of air flow is prevented; when the locking gland is loosened, the corundum filter cylinder 227 is automatically bounced, so that the filter cylinder is convenient to take out.
The front of the corundum filter cylinder 227 is close to the tail of the sampling head assembly 222, the front of the corundum filter cylinder 227 is open, and the tail of the corundum filter cylinder 227 is closed.
As shown in fig. 5 and 12, the sampling head assembly 222 includes a sampling nozzle holder 2220, an elbow 2221 and a head cover 2222,
the sampling nozzle seat 2220 is used for installing the sampling nozzle 221;
the tail part of the sampling nozzle seat 2220 is connected with the head part of the elbow pipe 2221;
the tail of the elbow pipe 2221 is connected with a head cover 2222;
the head cover 2222 is fitted to the front end of the cartridge housing 228 to close it;
the head cover 2222 and the front end of the cartridge housing 228 are locked by the locking gland 223;
an asbestos sealing ring 224 is arranged at the front contact part of the head cover 2222 and the corundum filter cylinder 227;
also disposed within cartridge sleeve 228 is a coupling ring 225, wherein coupling ring 225 abuts the inside wall of cartridge sleeve 228 and against the front end of guide sleeve 226.
The sampling nozzle 221 seat is used for installing the sampling nozzle through threaded connection.
The bent pipe plays a role in connecting and welding the sampling nozzle base and the head cover and is used for introducing sampling airflow and smoke samples.
Thirdly, the head cover 2222 is used for installing and positioning the asbestos sealing ring 224, and the air flow is prevented from being short-circuited by pressing the contact surface between the sealing gasket and the corundum filter cylinder 227 through the locking gland 223.
As shown in fig. 5, 6 and 7, the cartridge holder assembly 229 includes a coupling seat 2290, a high temperature spring 2291 and a cartridge holder 2292,
the coupling seat 2290 is used for coupling the rear end of the cartridge casing 228 and the front end of the air duct 220 in a sealing manner;
a high-temperature spring 2291 is arranged on one side of the connecting seat 2290, which is positioned inside the filter cartridge casing 228;
the top end of the high-temperature spring 2291 is provided with a filter cartridge holder 2292 for holding the tail of the corundum filter cartridge 227.
The coupling seat 2290 is used for coupling the cartridge casing 228 and the air duct 220; the spring groove 1003 is used for placing a special flat-bottom high-temperature spring 2291, argon arc spot welding is uniformly distributed at the groove edge to seal the spring, and a welding spot plays a positioning role; the weight-reducing slots 1004 are for reducing the solid weight.
As shown in fig. 5, 8, 9 and 10, the filter cartridge holder 2292 includes a spherical cavity 1000, a ventilation slot 1001 is formed on a sidewall of the spherical cavity 1000, an annular slot 1002 convenient for mounting the top end of a high-temperature spring 2291 is formed at the bottom of the filter cartridge holder 2292, a spring slot 1003 convenient for mounting the bottom end of the high-temperature spring 2291 is formed on the coupling holder 2290, and a weight reduction slot 1004 for reducing the weight is further formed on the coupling holder 2290.
The contact surface of the filter cartridge holder 2292 and the filter cartridge is designed into a spherical surface which is matched with the bottom of the corundum filter cartridge 227, and when the filter cartridge is placed in the corundum filter cartridge, the self-positioning performance is good; the vent slots are to reduce the effect of the cartridge holder 2292 on the flow area of the cartridge; the ring groove is used for placing a special high-temperature flat-bottom spring, then argon arc spot welding is uniformly distributed at the edge of the groove to seal the spring, and the welding spot plays a positioning role.
As shown in fig. 11, the guiding cylinder 226 includes a front ring 2260 closely attached to the front end of the corundum filter cylinder 227 and a rear ring 2262 closely attached to the rear end of the corundum filter cylinder 227, the front ring 2260 has a larger diameter than the rear ring 2262, and a guiding strip 2261 is connected between the front ring 2260 and the rear ring 2262.
As shown in fig. 1, the working process is as follows:
measuring the diameter of the flue 1, dividing an equal-area ring, and determining the number of sampling points;
according to the number of sampling points and the position size of the sampling points, a marking pen or an adhesive tape is used for marking on an outer header pipe of the integrated high-temperature smoke dust sampling pipe 2, so that the sampling pipe is conveniently pushed to enable a sampling nozzle to sample at a specified position;
the dried and weighed corundum filter cylinder is filled, and the locking gland is screwed tightly to prevent air leakage;
moving the sliding sleeve handle to the other end of the fixed handle, rotating a handle screw rod, radially compressing and positioning, lifting the integrated high-temperature smoke dust sampling pipe to a flue sampling port, (sealing a gap between the flue sampling port and the sampling pipe by asbestos), and preparing to insert into a flue 1 for sampling;
introducing cooling water, and adjusting the direction of the fixed handle to enable the handle to point to be parallel to the axis of the flue, even if the sampling nozzle is opposite to the direction of the airflow;
loosening the handle of the sliding ring, pushing the sampling pipe by using the fixed handle, and entering a first sampling point for sampling;
the S-shaped pitot tube of the sampling point and the output port of the sampling pipe are cooled by the condenser 3 and then input into the smoke dust sampling instrument 4;
sampling at each point in an isochronous manner, prompting point change sampling by the smoke dust sampler 4 with an alarm sound, and sequentially advancing a sampling pipe to sample according to the marked position;
when the last sampling point is finished, the smoke dust sampling instrument 4 sends out a long alarm to prompt that the sampling is finished, at the moment, the sampling tube is rotated by 180 degrees, the head of the sampling tube is pulled out to a flue sampling port, cooling water supply is stopped, a water inlet pipe is pulled out, the cooling water is emptied, the weight is reduced, the sliding handle is slid to the other end of the fixed handle to be tightly fixed, and the integrated high-temperature smoke dust sampling tube is lifted down;
taking out the corundum filter cylinder after the temperature of the sampling pipe is reduced to normal temperature, drying and weighing, and calculating a result;
and finishing sampling.
The original smoke dust sampling pipe is not provided with a cooling system, the common smoke dust sampling pipe can only work below 500 ℃, and the integrated high-temperature smoke dust sampling pipe is provided with the cooling system and can sample under the working condition of about 1300 ℃; the original smoke sampling pipe using the corundum filter cylinder is not provided with a high-temperature-resistant spring seat, is pressed by a pressing end cover, is pressed by a hand feeling knob, is in rigid contact with a sealing surface and a contact surface of the filter cylinder, is damaged when the corundum filter cylinder is pressed too tightly, is not enough in tightness and is short-circuited by air flow; when the filter cartridge is taken out, the filter cartridge is sometimes clamped and is not easy to take out; the original smoke dust sampling pipe is not provided with a fixed sampling nozzle with an opening pointing direction, the pointing direction is determined before sampling, the environment of a sampling site is severe, monitoring personnel sometimes neglect to directly insert the sampling pipe into a flue, inconvenience is caused, and sampling errors are brought; the integrated high-temperature smoke dust sampling pipe is fixed with the sampling nozzle pointing, so that unnecessary operation steps and troubles are avoided.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The integrated high-temperature smoke dust sampling pipe is characterized by comprising an S-shaped pitot tube component (21), a high-temperature sampling pipe component (22), a support (23), a cooling water pipe (24), an outer main pipe (20), a seal head (25) and an end cover (28),
the S-shaped pitot tube assembly (21) and the high-temperature sampling tube assembly (22) penetrate through two ends of the outer main pipe (20);
the water inlet end of the cooling water pipe (24) extends to the front end of the outer header pipe (20) to cool the high-temperature sampling pipe assembly (22);
a support (23) is arranged between the cooling water pipe (24) and the high-temperature sampling pipe assembly (22), so that the shaking of the water outlet at the water inlet end of the cooling water pipe (24) is avoided;
the front end of the outer main pipe (20) is provided with a seal head (25), and the tail end of the outer main pipe (20) is provided with an end cover (28), so that two ends of the outer main pipe (20) are sealed;
the front ends of the S-shaped pitot tube component (21) and the high-temperature sampling tube component (22) extend out of the end socket (25) to be used for sampling.
2. The integrated high-temperature smoke sampling pipe according to claim 1, wherein a sliding sleeve handle assembly (26) is arranged below the outer main pipe (20) close to the front end, and a fixed handle assembly (27) is arranged below the outer main pipe (20) close to the tail end.
3. The integrated high-temperature smoke sampling tube according to claim 1, wherein the pitot tube nozzle (210) of the S-shaped pitot tube assembly (21) extends out of the end cap (28), and the output end of the gas guide tube (220) of the high-temperature sampling tube assembly (22) extends out of the end cap (28).
4. The integrated high-temperature smoke dust sampling pipe according to claim 1, wherein a water inlet (240) of the cooling water pipe (24) extends out of an end cover (28), and a water outlet (241) is further arranged on the end cover (28) and is used for matching with the water inlet (240) to realize that the cooling water can fully cool the high-temperature sampling pipe assembly (22) in the outer header pipe (20).
5. The integrated high temperature soot sampling tube of claim 1, wherein said high temperature sampling tube assembly (22) comprises a sampling nozzle (221), a sampling head assembly (222), a guide cylinder (226), a corundum filter cartridge (227), a cartridge sleeve (228), and a cartridge holder assembly (229),
the sampling nozzle (221) is arranged at the front end part of the sampling head assembly (222) and is used for extending into a flue to sample smoke;
the tail of the sampling head assembly (222) is connected to the input end of a filter cartridge sleeve (228);
the output end of the filter cartridge sleeve (228) is connected with the air duct (220) of the high-temperature sampling tube assembly (22);
a corundum filter cylinder (227) used for filtering sampled smoke is arranged in the filter cylinder sleeve (228);
a guide cylinder (226) for guiding the corundum filter cylinder (227) is arranged on the periphery of the corundum filter cylinder (227);
the tail part of the corundum filter cylinder (227) is provided with a filter cylinder support component (229) for supporting the corundum filter cylinder (227).
6. The integrated high-temperature smoke sampling pipe according to claim 5, wherein the front part of the corundum filter cylinder (227) is close to the tail part of the sampling head assembly (222), the front part of the corundum filter cylinder (227) is open, and the tail part of the corundum filter cylinder (227) is closed.
7. The integrated high-temperature soot sampling tube of claim 5, wherein the sampling head assembly (222) comprises a sampling nozzle base (2220), an elbow (2221) and a head cover (2222),
the sampling nozzle seat (2220) is used for installing a sampling nozzle (221);
the tail part of the sampling nozzle seat (2220) is connected with the head part of the elbow pipe (2221);
the tail part of the elbow pipe (2221) is connected with a joint cover (2222);
the head cover (2222) is mounted on the front end of the cartridge housing (228) to close it;
the front ends of the head cover (2222) and the filter cartridge sleeve (228) are locked by a locking gland (223);
an asbestos sealing ring (224) is arranged at the contact part of the head cover (2222) and the front end of the corundum filter cylinder (227);
the filter cylinder sleeve (228) is internally provided with a connecting ring (225), and the connecting ring (225) is tightly attached to the inner side wall of the filter cylinder sleeve (228) and is contacted with the front end of the guide cylinder (226).
8. The integrated high temperature soot sampling tube of claim 5, wherein said filter cartridge holder assembly (229) comprises a coupling seat (2290), a high temperature spring (2291), and a filter cartridge holder (2292),
the coupling seat (2290) is used for carrying out closed coupling on the tail part of the filter cartridge sleeve (228) and the front end of the air duct (220);
a high-temperature spring (2291) is arranged on one side of the connecting seat (2290) positioned inside the filter cartridge sleeve (228);
the top end of the high-temperature spring (2291) is provided with a filter cartridge holder (2292) for holding the tail part of the corundum filter cartridge (227).
9. The integrated high-temperature smoke dust sampling tube according to claim 8, wherein the filter cartridge holder (2292) comprises a spherical cavity (1000), a ventilation groove (1001) is formed in the side wall of the spherical cavity (1000), an annular groove (1002) convenient for mounting the top end of the high-temperature spring (2291) is formed in the bottom of the filter cartridge holder (2292), a spring groove (1003) convenient for mounting the bottom end of the high-temperature spring (2291) is formed in the coupling seat (2290), and a weight reduction groove (1004) for reducing the weight is further formed in the coupling seat (2290).
10. The integrated high-temperature smoke sampling pipe according to claim 5, wherein said guide cylinder (226) comprises a front annular ring (2260) closely attached to the front end of the corundum filter cylinder (227) and a tail annular ring (2262) closely attached to the tail of the corundum filter cylinder (227), the diameter of the front annular ring (2260) is larger than that of the tail annular ring (2262), and a guide strip (2261) is connected between the front annular ring (2260) and the tail annular ring (2262).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123055866.7U CN216594390U (en) | 2021-12-06 | 2021-12-06 | Integrated high-temperature smoke dust sampling pipe |
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| CN202123055866.7U CN216594390U (en) | 2021-12-06 | 2021-12-06 | Integrated high-temperature smoke dust sampling pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952768A (en) * | 2023-09-12 | 2023-10-27 | 武汉森源蓝天环境科技工程有限公司 | Gas storage device for dust detection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116952768A (en) * | 2023-09-12 | 2023-10-27 | 武汉森源蓝天环境科技工程有限公司 | Gas storage device for dust detection |
| CN116952768B (en) * | 2023-09-12 | 2023-12-08 | 武汉森源蓝天环境科技工程有限公司 | Gas storage device for dust detection |
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