CN112577789A - Dilution and jet flow two-in-one constant-speed sampling device - Google Patents
Dilution and jet flow two-in-one constant-speed sampling device Download PDFInfo
- Publication number
- CN112577789A CN112577789A CN202011438551.8A CN202011438551A CN112577789A CN 112577789 A CN112577789 A CN 112577789A CN 202011438551 A CN202011438551 A CN 202011438551A CN 112577789 A CN112577789 A CN 112577789A
- Authority
- CN
- China
- Prior art keywords
- dilution
- flue gas
- jet
- tube
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N2001/225—Sampling from a flowing stream of gas isokinetic, same flow rate for sample and bulk gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N2001/2264—Sampling from a flowing stream of gas with dilution
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of flue gas detection, in particular to a dilution jet flow two-in-one constant-speed sampling device which comprises a flue gas sampler, wherein the flue gas sampler comprises a flue gas sampling pipe and a flue gas velocity meter, a jet pump is arranged at one end of the flue gas sampling pipe, one end of the jet pump is provided with the flue gas sampling pipe, the other end of the jet pump is communicated with a measuring chamber, a sample gas velocity meter is arranged in front of the measuring chamber, and a particulate matter monitor can be arranged in the measuring chamber. The jet pump pipeline is connected with a jet power/dilution air source, the jet power/dilution air source is connected with a jet power/dilution air controller, and a jet power/dilution air flow velocity meter is installed on the jet power/dilution air source pipeline. The constant-speed sampling method is provided with a control system, the control system is connected with a flue gas velocity meter, a jet power/dilution gas velocity meter and a jet power/dilution gas controller, and a jet power/dilution gas source is controlled by the jet power/dilution gas controller. According to the invention, the measurement data is transmitted to the control system through the flue gas velocity meter, so that the control system controls the dilution gas controller, the dilution gas source and the jet flow power gas source are controlled through the dilution gas controller, and the jet flow power gas source is used as the dilution gas source, so that the system is simplified, the equipment is reduced, the reliability of the equipment is improved, and the detection accuracy of the method is greatly improved.
Description
Technical Field
The invention relates to the technical field of smoke detection, in particular to a dilution jet flow two-in-one constant-speed sampling device.
Background
A smoke sampler is a common device in the current market, and is a device for extracting smoke in a flue to measure particulate matters by a probe inserted into the flue and a power device. Because the humidity of the flue gas in the existing flue is very high, in order to eliminate the influence of liquid water on the measurement of the particulate matters and accurately measure the concentration value of the particulate matters, the humidity of the sample gas must be reduced. The liquid water is reduced to be in a gaseous state, so that real particles in the gas can be measured by a particle detection instrument. At present, a dilution method is adopted to reduce the humidity of the sample gas to be measured, and then a corresponding particle detection instrument is matched, so that the concentration of the particles of the extracted sample gas is finally converted into an intuitive numerical value for data analysis.
However, in the current method, the actual flue gas sampling is mostly non-uniform sampling. However, in the case of gas sampling, constant velocity sampling is more advanced than non-constant velocity sampling, and is a necessary condition for obtaining an accurate value of the concentration of particulate matter in the flue. Meanwhile, the flue gas sample is subjected to dilution treatment, so that the concentration of the sample gas is different from that of the mixed sample gas, and the concentration needs to be calculated according to the dilution ratio, so that the dilution jet flow two-in-one constant-speed sampling device is provided, and the problem is solved.
SUMMARY OF THE PATENT FOR INVENTION
In view of the above, there is a need for a dilution jet two-in-one constant velocity sampling device that overcomes the above problems.
In order to achieve the purpose, the invention adopts the technical scheme that: dilution jet two-in-one constant speed sampling device comprises a flue gas sampling tube, wherein one end of the flue gas sampling tube is provided with a jet pump, one end of the jet pump is provided with a first connecting tube, one end of the first connecting tube is communicated with a measuring chamber, one side of the measuring chamber is provided with a particulate matter monitor, a control system is installed at the top of the measuring chamber, a dilution gas controller is arranged at the top of the control system, a dilution gas velocity meter is installed at the top of the measuring chamber, a second connecting tube is communicated with the top of the dilution gas velocity meter, one end of the second connecting tube is communicated with the jet pump, the surface of the flue gas sampling tube is communicated with a flue gas velocity meter, a positioning plate is sleeved on the surface of the flue gas sampling tube, the positioning screw is symmetrically connected with the inner part of the positioning plate through screw threads, a threaded plate is symmetrically bolted on, the one end that the screw rod is close to the flue gas sampling tube is equipped with the arc piece, the inside of locating plate is embedded to have the sliding sleeve, one side bonding of sliding sleeve has the rubber tube, the surface mounting of flue gas sampling tube has sample air velocity appearance.
Preferably, the inside of sliding sleeve and flue gas sampling tube slip cup joint, the surface and two arc piece covers of rubber tube are established, the inside and the flue gas sampling tube cover of rubber tube are established.
Preferably, the bearing is embedded to one side that the arc piece is close to the screw rod, the inside and the screw rod of bearing rotate to cup joint, the inside of arc piece is run through to the thread end of screw rod, the thread end of screw rod does not contact with arc piece.
Preferably, telescopic rods are symmetrically arranged on one side, close to the arc-shaped block, of the screw rod, one end of each telescopic rod is in bolted connection with the arc-shaped block, and the other end of each telescopic rod is in bolted connection with the threaded plate.
Preferably, the thickness of one end of the rubber tube is larger than that of the other end of the rubber tube, and the diameter of one end, close to the arc-shaped block, of the rubber tube is smaller than that of the other end of the rubber tube.
Preferably, one side of the measuring chamber is provided with a detection shell, one side of the arc-shaped block, which is close to the measuring chamber, is communicated with a vent pipe, and one end of the vent pipe is communicated with the measuring chamber.
Preferably, one side of the arc-shaped block close to the flue gas sampling tube is provided with an anti-slip pad, one side of the anti-slip pad close to the arc-shaped block is bonded with the arc-shaped block, and one side of the anti-slip pad close to the flue gas sampling tube is provided with anti-slip lines.
Preferably, the particulate matter monitor is located the inside that detects the shell, and the bottom of particulate matter monitor and the bottom installation that detects the shell inner chamber, the both sides of particulate matter monitor do not contact with the both sides that detect the shell inner chamber.
Preferably, the front surface of the detection shell is provided with an observation hole, and transparent glass is embedded in the observation hole.
Preferably, the one end flue gas sampling tube intercommunication of jet pump, the other end of jet pump is equipped with the ring flange, the both sides of ring flange respectively with jet pump and connecting pipe integrated processing, the ring flange uses a plurality of screw and nut fixed.
Compared with the prior art, the invention has the following beneficial effects:
the positioning plate drives the threaded plate, the screw rod and the arc-shaped block to be fixed with the smoke sampling tube, so that the smoke sampling tube of the device is pulled by the positioning plate, and the purposes of positioning the device and adjusting the smoke sampling tube are achieved by matching with the mode that the screw rod drives the arc-shaped block to adjust, so that an operator can position the device on the wall of a smoke channel in the sampling process, and can adjust the smoke sampling tube to a required position more conveniently by the adjusting mode, thereby improving the practicability of the device;
according to the invention, the sliding sleeve is embedded in the positioning plate, the rubber pipe is bonded on one side of the sliding sleeve, and the smoke sampling pipe is clamped by matching with the two arc-shaped blocks, so that the smoke sampling pipe is closed by the rubber pipe, the aim of closing a smoke channel hole is achieved, when an operator observes device data or supports the device, smoke in a flue cannot contact with the operator through the smoke channel hole, the safety of the operator during sampling is ensured, and the harm of the smoke to the body of the operator is greatly reduced;
according to the invention, the measurement data is transmitted to the control system through the flue gas velocity meter, so that the control system controls the dilution gas controller, the dilution gas source and the jet flow power gas source are controlled by the dilution gas controller to be combined into a whole, and the jet flow power gas source is used as the dilution gas source, so that the system is simplified, the equipment is reduced, the reliability of the equipment is improved, and the detection accuracy of the device is greatly improved.
Drawings
FIG. 1 is a schematic diagram of the inventive principle
FIG. 2 is a schematic front view of the inventive structure;
FIG. 3 is a side cross-sectional view of an arc block of the patented structure of the invention;
fig. 4 is a perspective view of the rubber tube with the patented structure.
In the figure: 1. a flue gas sampling tube; 2. a jet pump; 3. a first connecting pipe; 4. a measurement chamber; 5. a particulate matter monitor; 6. a control system; 7. a dilution gas controller; 8. a diluent gas flow meter; 9. a second connecting pipe; 10. a flue gas flow meter; 11. positioning a plate; 12. a thread plate; 13. a screw; 14. an arc-shaped block; 15. a sliding sleeve; 16. a rubber tube; 17. a bearing; 18. a telescopic rod; 19. detecting the shell; 20. a breather pipe; 21. a non-slip mat; 22. an observation hole; 23. transparent glass; 24. a set screw; 26. a flange plate; 27. a sample gas flow rate meter.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed in many different forms and should not be construed as limited to the embodiments set forth herein.
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings, which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: dilution jet two-in-one constant-speed sampling device comprises a flue gas sampling tube 1, wherein one end of the flue gas sampling tube 1 is provided with a jet pump 2, one end of the jet pump 2 is provided with a first connecting pipe 3, one end of the first connecting pipe 3 is communicated with a measuring chamber 4, one side of the measuring chamber 4 is provided with a particulate matter monitor 5, the top of the measuring chamber 4 is provided with a control system 6, the top of the control system 6 is provided with a dilution gas controller 7, the top of the measuring chamber 4 is provided with a dilution gas flow instrument 8, the top of the dilution gas flow instrument 8 is communicated with a second connecting pipe 9, one end of the second connecting pipe 9 is communicated with the jet pump 2, the surface of the flue gas sampling tube 1 is communicated with a flue gas flow instrument 10, the surface of the flue gas sampling tube 1 is sleeved with a positioning plate 11, the internal symmetrical thread of the positioning plate 11 is connected with a positioning screw 24, one side, the inside threaded connection of threading board 12 has screw rod 13, the one end that screw rod 13 is close to flue gas sampling tube 1 is equipped with arc piece 14, the inside of locating plate 11 is embedded to have sliding sleeve 15, one side of sliding sleeve 15 bonds there is rubber tube 16, the surface mounting of flue gas sampling tube 1 has sample air flow instrument 27.
Preferably, the inside of sliding sleeve 15 and flue gas sampling tube 1 slip cup joint, the surface and two arc blocks 14 cover of rubber tube 16 are established, the inside and the flue gas sampling tube 1 cover of rubber tube 16 are established.
Preferably, a bearing 17 is embedded in one side of the arc block 14 close to the screw 13, the inside of the bearing 17 is rotatably sleeved with the screw 13, the threaded end of the screw 13 penetrates through the inside of the arc block 14, and the threaded end of the screw 13 is not in contact with the arc block 14.
Preferably, telescopic rods 18 are symmetrically arranged on one side of the screw 13 close to the arc-shaped block 14, one end of each telescopic rod 18 is bolted with the arc-shaped block 14, and the other end of each telescopic rod 18 is bolted with the thread plate 12.
Preferably, the thickness of one end of the rubber tube 16 is larger than that of the other end of the rubber tube 16, and the diameter of one end of the rubber tube 16 close to the arc-shaped block 14 is smaller than that of the other end of the rubber tube 16.
Preferably, a detection shell 19 is installed on one side of the measurement chamber 4, a vent pipe 20 is communicated with one side of the arc block 14 close to the measurement chamber 4, and one end of the vent pipe 20 is communicated with the measurement chamber 4.
Preferably, one side of the arc-shaped block 14 close to the flue gas sampling tube 1 is provided with an anti-slip pad 21, one side of the anti-slip pad 21 close to the arc-shaped block 14 is bonded with the arc-shaped block 14, and one side of the anti-slip pad 21 close to the flue gas sampling tube 1 is provided with anti-slip lines.
Preferably, the particulate matter monitor 5 is located inside the detection shell 19, the bottom of the particulate matter monitor 5 is mounted at the bottom of the inner cavity of the detection shell 19, and the two sides of the particulate matter monitor 5 are not in contact with the two sides of the inner cavity of the detection shell 19.
Preferably, the front surface of the detection shell 19 is provided with an observation hole 22, and transparent glass 23 is embedded in the observation hole 22.
Preferably, 1 intercommunication of one end flue gas sampling tube of jet pump 2, the other end of jet pump 2 is equipped with ring flange 26, the both sides of ring flange 26 respectively with jet pump 2 and a 3 integrated into one piece processing of connecting pipe, ring flange 26 uses a plurality of screw and nut fixed.
The specific implementation mode is as follows:
the invention integrates the dilution air source and the jet flow power air source, and the jet flow power air source is used as the dilution air source, thereby simplifying the system, reducing the equipment, improving the reliability of the equipment, and adopting a vacuum fan or compressed air as the jet flow power air source.
The dynamic formula of the jet pump is formula 1
PC/P0＝0.1147*(3.0365-Qs/Q0)
PC-jet pump (extraction gas/flue) pressure pa;
p0-fan operating (power-pneumatic) pressure pa;
qs- -volume flow of sample (purge gas) m3/s after sampling;
q0- -jet working fluid (power gas) volume flow m 3/s;
and according to formula 2
S1＝S2＝Qs/S
S1- -measuring the flow velocity m/S of the smoke;
s2- -theoretical flow rate of constant-speed sampling of sample gas;
qs- -volume flow of sample (purge gas) m3/s after sampling;
and the cross-sectional area of the sampling point may not be uniform due to the flow velocity. Thus, formula 3
S2- -theoretical value of flow velocity m/S required for constant-velocity sampling of sample gas at flow velocity measurement point
m1- -sectional area of sampling port of flue gas sampler
m2- -cross-sectional area of flow velocity measurement point
The control system needs to adjust the air supply of the jet power/dilution air supply through the jet power/dilution air controller so that the difference between the final extracted actual flow rate S and S2 is 0. I.e., S2-S ═ 0.
Because the flow velocity of the jet flow power dilution gas is a variable value and the temperature after dilution is different from that of the original sample gas and the dilution gas, the final dilution ratio N is calculated by the following method in formula 4:
t2- -temperature of the gas mixture
t1- -temperature of sample gas
tx- -temperature of dilution gas
s2- -flow rate of mixture
S1- -flow rate of sample gas
Sx- -flow rate of dilution gas
m2- -Cross-sectional area of measurement point of mixed gas flow velocity
mx- -cross-sectional area of point of measurement of flow velocity of dilution gas
Further aspects of the invention, the terms explain:
flue gas: gases present in a flue, stack or other duct;
a sampling port: a sampling port of the flue gas sampler;
sample gas: the smoke to be detected enters the sampling port;
an extraction controller: controlling a device for extracting sample gas;
extracting a power source: the equipment for extracting the sample gas and generating the extraction power can be an air pump, a jet pump and the like;
flow rate measurement points: measuring points for measuring the flow rate of the extracted gas;
a measuring chamber: the chamber is used for installing a meter to measure the particles of the sample gas;
diluting gas: other gases used to dilute the sample gas, such as nitrogen, air, etc.;
a dilution controller: means for controlling the dilution gas;
mixed gas: and the sample gas and the diluent gas are mixed to measure the concentration of the particles.
The working principle is as follows: when in use, the smoke sampling tube 1 is inserted into the flue through the flue hole, then the positioning plate 11 is installed with the flue wall through the positioning screw 24, then the device is pushed to ensure that the smoke sampling tube 1 slides through the inside of the sliding sleeve 15 and is adjusted to the required position, the two screws 13 are rotated in sequence, so that the screws 13 drive the arc-shaped blocks 14 to position the flue gas sampling tube 1, the positioned positioning plate 11 can pull the threaded plate 12, the threaded plate 12 pulls the arc-shaped block 14 through the screw 13, and finally the arc-shaped block 14 pulls the flue gas sampling tube 1, so that the flue gas sampling tube 1 is positioned and fixed on one side of the flue, if the position of the flue gas sampling tube 1 needs to be adjusted, the screw 13 can be rotated, so that the screw 13 drives the arc-shaped block 14 to be separated from the flue gas sampling tube 1, then the device is pushed to enable the flue gas sampling tube 1 to move in the flue, so that the purposes of positioning the device and adjusting the flue gas sampling tube 1 are achieved;
in the process that the arc blocks 14 clamp the flue gas sampling tube 1, the rubber tube 16 is extruded by the two arc blocks 14, after the rubber tube 16 is clamped by the arc blocks 14, the rubber tube 16 is contacted with the flue gas sampling tube 1, and after the rubber tube 16 is contacted with the flue gas sampling tube 1, the rubber tube 16 seals the space between the flue gas sampling tube 1 and the sliding sleeve 15, so that the aim of sealing a flue hole is fulfilled;
after the device is put in place, flue gas enters the device through the flue gas sampling tube 1, then the flue gas velocity meter 10 contacts the flue gas, then the flue gas velocity meter 10 transmits measured data to the control system 6, the control system 6 obtains the data and then calculates to obtain a required theoretical extraction flow velocity value S2, then the control system 6 controls the dilution gas controller 7, after the dilution gas controller 7 obtains the data, the jet power/dilution gas source is changed, finally, a feedback actual sample gas flow velocity S is obtained through the sample gas velocity meter 27, finally, the mixed gas flow velocity S is equal to S2, so that constant-speed sampling under temperature change is finally realized, then the flue gas is ensured to pass through the measuring chamber 4, the particulate matter content monitor 5 in the measuring chamber 4 detects the particulate matter content concentration of the mixed gas, finally, the dilution ratio is calculated according to the sample gas velocity meter 27, and accurate particulate matter content in the flue gas is obtained, thereby just reached the purpose of constant speed sample, through transmitting flue gas velocity of flow appearance 10 measured data to control system 6, make control system 6 control dilution gas controller 7, rethread dilution gas controller 7 control dilution gas source carries out two unifications with efflux power air supply, utilizes efflux power air supply to come as the dilution gas source, has simplified the system, has reduced equipment, has improved the reliability of equipment to also by a wide margin improvement the accuracy that the device detected.
As shown in figure 1, flue gas sampling tube 1 and sliding sleeve 15 all adopt the aluminum alloy material, have difficult rust and the good problem of heat dissipation, utilize the aluminum alloy material, can in time disperse the high temperature in the flue for the device can be quick cooling get off more, improved the radiating rate of device.
In the above-mentioned embodiment, mutually support between through flue gas sampling tube 1 and sliding sleeve 15 for the device is after the use, and the radiating rate is faster, can be faster after the use remove the device, and utilize the fast advantage of aluminum alloy radiating rate, can the certain degree avoid the flue gas sampling tube 1 of high temperature can lead to the fact the condition of scald to operating personnel.
As shown in fig. 1, the transparent glass 23 is made of ultraviolet-proof heat-insulating glass, so that an operator can observe the measurement data of the particulate monitor 5 inside the detection shell 19 conveniently, and the ultraviolet-proof purpose is achieved, so that the external operator cannot be influenced by ultraviolet rays generated inside the detection shell 19, and meanwhile, the external ultraviolet rays can be prevented from entering the inside of the detection shell 19.
In the above embodiment, block the inside ultraviolet of external world and flue through transparent glass 23, make the device at the in-process of work, detect more accurately, also can block the injury of the inside ultraviolet of flue to operating personnel moreover, and then make the protection operating personnel that the device can be better.
As shown in fig. 1, the rubber tube 16 is made of fluororubber, which has the characteristics of strong oxidant resistance, oil resistance, acid and alkali resistance, etc., and can be applied to high temperature, high vacuum and high pressure environments, so as to avoid the deformation of the flue gas sampling tube 1 or the sliding sleeve 15.
In the above embodiment, the flue gas inside the flue can be prevented from leaking through the rubber tube 16, and the flue gas can not be leaked to be absorbed by an operator, so that the sealing performance of the device is ensured, and the harm of the flue gas to the operator can be reduced to the minimum when the device is used.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (10)
1. Dilution efflux two unification constant speed sampling device, including the flue gas sampling tube, its characterized in that: the device comprises a flue gas sampling tube, a jet pump, a first connecting tube, a measuring chamber, a particulate matter monitor, a control system, a diluent gas controller, a diluent gas velocity meter, a second connecting tube, a positioning plate, a positioning screw, a threaded plate, a screw rod, an arc-shaped block, a first connecting tube, a second connecting tube, a diluent gas velocity meter, a second connecting tube, a control system, a diluent gas controller, a diluent gas velocity meter, a positioning plate, a positioning screw, a threaded plate, a screw rod, a second connecting tube, a control system, a diluent gas controller, a diluent gas velocity meter, a control system, a diluent gas controller, a diluent gas velocity meter, a control system and a controller, the inside of locating plate is embedded to have the sliding sleeve, one side of sliding sleeve bonds has the rubber tube, the surface mounting of flue gas sampling tube has sample air velocity appearance.
2. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the inside of sliding sleeve and the slip of flue gas sampling tube cup joint, the surface and two arc piece covers of rubber tube are established, the inside and the flue gas sampling tube cover of rubber tube are established.
3. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the bearing is embedded to one side that the arc piece is close to the screw rod, the inside and the screw rod of bearing rotate and cup joint, the inside of arc piece is run through to the thread end of screw rod, the thread end of screw rod does not contact with the arc piece.
4. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: and telescopic rods are symmetrically arranged on one side of the screw rod, which is close to the arc-shaped block, one end of each telescopic rod is bolted with the arc-shaped block, and the other end of each telescopic rod is bolted with the thread plate.
5. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the thickness of rubber tube one end is greater than the thickness of the rubber tube other end, the diameter that the rubber tube is close to arc piece one end is less than the diameter of the rubber tube other end.
6. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the measuring chamber is characterized in that a detection shell is installed on one side of the measuring chamber, a vent pipe is communicated with one side, close to the measuring chamber, of the arc-shaped block, and one end of the vent pipe is communicated with the measuring chamber.
7. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the anti-skidding device is characterized in that an anti-skidding pad is arranged on one side, close to the flue gas sampling tube, of the arc-shaped block, one side, close to the arc-shaped block, of the anti-skidding pad is bonded with the arc-shaped block, and anti-skidding lines are arranged on one side, close to the flue gas sampling tube, of the anti-skidding pad.
8. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the particulate matter monitor is located the inside that detects the shell, and the bottom of particulate matter monitor and the bottom installation that detects the shell inner chamber, the both sides of particulate matter monitor do not contact with the both sides that detect the shell inner chamber.
9. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the front of detecting the shell has seted up the observation hole, the inside embedded transparent glass that has of observation hole.
10. The dilution jet two-in-one constant velocity sampling apparatus of claim, wherein: the one end flue gas sampling tube intercommunication of jet pump, the other end of jet pump is equipped with the ring flange, the both sides of ring flange respectively with jet pump and connecting pipe integrated processing, the ring flange uses a plurality of screw and nut fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438551.8A CN112577789B (en) | 2020-12-07 | 2020-12-07 | Dilution and jet flow two-in-one constant-speed sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011438551.8A CN112577789B (en) | 2020-12-07 | 2020-12-07 | Dilution and jet flow two-in-one constant-speed sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112577789A true CN112577789A (en) | 2021-03-30 |
| CN112577789B CN112577789B (en) | 2021-10-01 |
Family
ID=75130683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011438551.8A Active CN112577789B (en) | 2020-12-07 | 2020-12-07 | Dilution and jet flow two-in-one constant-speed sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112577789B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739758A (en) * | 2022-06-10 | 2022-07-12 | 南京波瑞自动化科技有限公司 | Adjustable speed sampling device of static pressure balance method |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6058789A (en) * | 1994-03-26 | 2000-05-09 | Kohsaka; Hiroji | Sampling device for gas analyzers |
| US20080229930A1 (en) * | 2001-10-10 | 2008-09-25 | Jordan John L | Particle collection apparatus and method |
| CN103808537A (en) * | 2014-03-01 | 2014-05-21 | 王新成 | Automatic smoke dust sampling device |
| CN103969088A (en) * | 2013-02-06 | 2014-08-06 | 株式会社堀场制作所 | Exhaust gas sampling apparatus and exhaust gas sampling analytic system |
| CN104122123A (en) * | 2014-08-15 | 2014-10-29 | 武汉市天虹仪表有限责任公司 | Gaseous mercury sampling device for stationary pollution source |
| CN204241286U (en) * | 2014-12-11 | 2015-04-01 | 深圳睿境环保科技有限公司 | Flue gas constant speed constant-flow sampling device |
| CN205157240U (en) * | 2015-10-21 | 2016-04-13 | 核工业北京化工冶金研究院 | Depthkeeping original state water sample collection system in torrent waters |
| CN205384207U (en) * | 2016-02-23 | 2016-07-13 | 汇众翔环保科技河北有限公司 | High sensitivity particulate matter laser monitor based on dilution method |
| CN107238518A (en) * | 2016-03-29 | 2017-10-10 | 上海北分科技股份有限公司 | A kind of constant speed flue gas sampling detection means |
| CN107505173A (en) * | 2017-10-10 | 2017-12-22 | 周若晨 | Flue dust, flue gas sampling are automatically positioned monitoring device |
| CN207636364U (en) * | 2017-11-02 | 2018-07-20 | 中国科学院大连化学物理研究所 | A kind of flue gas particles classification dilution sampling device |
| CN109781495A (en) * | 2018-12-27 | 2019-05-21 | 西安交通大学 | A kind of flue gas dilution sampled-data control system and method |
| CN211179178U (en) * | 2019-11-21 | 2020-08-04 | 南京波瑞自动化科技有限公司 | Novel CEMS system's full system calibration sample thief |
-
2020
- 2020-12-07 CN CN202011438551.8A patent/CN112577789B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6058789A (en) * | 1994-03-26 | 2000-05-09 | Kohsaka; Hiroji | Sampling device for gas analyzers |
| US20080229930A1 (en) * | 2001-10-10 | 2008-09-25 | Jordan John L | Particle collection apparatus and method |
| US9074968B2 (en) * | 2013-02-06 | 2015-07-07 | Horiba, Ltd. | Exhaust gas sampling apparatus |
| CN103969088A (en) * | 2013-02-06 | 2014-08-06 | 株式会社堀场制作所 | Exhaust gas sampling apparatus and exhaust gas sampling analytic system |
| CN103808537A (en) * | 2014-03-01 | 2014-05-21 | 王新成 | Automatic smoke dust sampling device |
| CN104122123A (en) * | 2014-08-15 | 2014-10-29 | 武汉市天虹仪表有限责任公司 | Gaseous mercury sampling device for stationary pollution source |
| CN204241286U (en) * | 2014-12-11 | 2015-04-01 | 深圳睿境环保科技有限公司 | Flue gas constant speed constant-flow sampling device |
| CN205157240U (en) * | 2015-10-21 | 2016-04-13 | 核工业北京化工冶金研究院 | Depthkeeping original state water sample collection system in torrent waters |
| CN205384207U (en) * | 2016-02-23 | 2016-07-13 | 汇众翔环保科技河北有限公司 | High sensitivity particulate matter laser monitor based on dilution method |
| CN107238518A (en) * | 2016-03-29 | 2017-10-10 | 上海北分科技股份有限公司 | A kind of constant speed flue gas sampling detection means |
| CN107505173A (en) * | 2017-10-10 | 2017-12-22 | 周若晨 | Flue dust, flue gas sampling are automatically positioned monitoring device |
| CN207636364U (en) * | 2017-11-02 | 2018-07-20 | 中国科学院大连化学物理研究所 | A kind of flue gas particles classification dilution sampling device |
| CN109781495A (en) * | 2018-12-27 | 2019-05-21 | 西安交通大学 | A kind of flue gas dilution sampled-data control system and method |
| CN211179178U (en) * | 2019-11-21 | 2020-08-04 | 南京波瑞自动化科技有限公司 | Novel CEMS system's full system calibration sample thief |
Non-Patent Citations (2)
| Title |
|---|
| JINGWU WANG: "Sooting tendencies of propane jet diffusion flame under crossflow", 《FUEL》 * |
| 薛平: "燃煤电厂烟气监测取样探头的应用", 《自动化应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739758A (en) * | 2022-06-10 | 2022-07-12 | 南京波瑞自动化科技有限公司 | Adjustable speed sampling device of static pressure balance method |
| CN114739758B (en) * | 2022-06-10 | 2022-08-23 | 南京波瑞自动化科技有限公司 | Speed-adjustable sampling device of static pressure balance method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112577789B (en) | 2021-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107340101B (en) | Gas micro-leakage detection device and method for sealing device | |
| KR102141590B1 (en) | Online sealing detection device, multi-section closed chamber processing device and method | |
| CN112577789B (en) | Dilution and jet flow two-in-one constant-speed sampling device | |
| CN206020318U (en) | A kind of gas dew point analytical equipment | |
| US8201438B1 (en) | Detection of gas leakage | |
| CN202024990U (en) | Anti-explosion pump suction type double-gas analyzer | |
| CN112611611A (en) | Smoke constant-speed sampling device with temperature compensation function | |
| CN208399462U (en) | A kind of use for laboratory fuel gas flowing analyzer | |
| CN1319758A (en) | Equipment for in situ testing dynamic wind pressure property of building door and window | |
| CN217180154U (en) | Multi-channel gas sampling and measuring system capable of independently adjusting flow | |
| CN110793583A (en) | Plug-in pipeline gas measuring instrument | |
| CN211785267U (en) | Dew point value test system | |
| CN109268691A (en) | System for automatically prejudging leakage of volatile chemical medium pipeline | |
| KR102342454B1 (en) | Gas sensor probe for measuring dissolved gas of transformer | |
| CN205808782U (en) | A kind of vacuum withdraw device of short neck nozzle | |
| KR101817603B1 (en) | Apparatus For Monitoring Leaked Amount Of Sampled Gas | |
| CN207197739U (en) | A kind of equipment of micro- leak detection | |
| CN112461458A (en) | Helium concentration detection control device for helium mass spectrometer leak detection test system | |
| CN216695454U (en) | Air tightness detection device | |
| CN218937898U (en) | Sampling gas constant-speed system of extraction type particulate matter monitor | |
| CN219552353U (en) | Gas analysis device and gas analysis system | |
| CN221038941U (en) | Gas leakage calibration instrument | |
| CN214504595U (en) | Calibrating device of combustible gas alarm | |
| BR112020006319A2 (en) | device and method for distinguishing a leak of test gas from a leak from an interference gas | |
| CN219977710U (en) | Test device of breather valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210513 Address after: 211100 No. 68 Shengtai Road, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Applicant after: NANJING BORY AUTOMATION TECHNOLOGY Co.,Ltd. Applicant after: Du Yu Address before: 211100 No.85, Xingmin South Road, Jiangning District, Nanjing City, Jiangsu Province Applicant before: NANJING BORY AUTOMATION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |