CN108375684A - The wind speed measuring device and its wind measurement method of a kind of thermal power plant's coal pulverizer outlet First air fast leveling - Google Patents
The wind speed measuring device and its wind measurement method of a kind of thermal power plant's coal pulverizer outlet First air fast leveling Download PDFInfo
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- CN108375684A CN108375684A CN201810121153.XA CN201810121153A CN108375684A CN 108375684 A CN108375684 A CN 108375684A CN 201810121153 A CN201810121153 A CN 201810121153A CN 108375684 A CN108375684 A CN 108375684A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
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Abstract
The present invention relates to wind speed measuring devices and its wind measurement method that a kind of thermal power plant's coal pulverizer exports First air fast leveling, belong to new energy and field of energy-saving technology.Currently, measure primary air piping maximum quantity of wind device and method and there are the problems such as long in time limit, testing crew labor intensity is very big, measurement error is big.The present invention includes double fluted shape pitot tubes, tube socket, ball valve, seal assembly and short tube；Tube socket and short tube are separately fixed at the both sides of ball valve, and seal assembly is sleeved on double fluted shape pitot tubes, seal assembly and the detachable connection of short tube；Double fluted shape pitot tubes include positive pressure side pipe and negative pressure side pipe, and positive pressure side pipe is welded and fixed with suction side tube side-by-side；One of positive pressure side pipe and negative pressure side pipe bends to S types and the necking at about 6cm, and other end is blind pipe；Several pressure sensing holes are both provided on positive pressure side pipe and negative pressure side pipe, when for carrying out measuring wind speed.High certainty of measurement of the present invention, measuring speed are fast, testing crew labor intensity is small.
Description
Technical field
The wind speed measuring device of First air fast leveling is exported the present invention relates to a kind of thermal power plant's coal pulverizer and its wind speed is surveyed
Amount method belongs to new energy and field of energy-saving technology.
Background technology
The mode of coal-fired station's coal combustion mostly uses greatly coal dust firing method, and which send raw coal by feeder
Enter in coal pulverizer to be preheated, grind, a wind pipe is passed through by the coal dust and First air that meet fineness requirement after separator
It is sent into hearth combustion.Due to the position relationship of coal pulverizer and boiler-burner, the distance of coal pulverizer to each coal burner not phase
Same, elbow quantity also has difference.So that each a wind pipe length and resistance have very large deviation, cause to enter each coal dust firing
The fuel quantity deviation of device is very big.Therefore the uniformity for influencing whether burning and temperature in stove, can cause to wash away water-cooling wall, boiler knot
The problems such as burnt, boiler expansion unevenness, a wind pipe block and both sides smoke temperature and Temperature Deviation are big.In view of the above problems, comparing
Effective precautionary measures are to install that shrinkage cavity is adjusted in a wind pipe, and one is carried out during unit regulation or after major overhaul
Secondary wind leveling experiment, within the wind speed deviation adjusting to prescribed limit in each a wind pipe.
The method that First air leveling uses is to be mainly《Power station coal pulverizer and pulverized coal preparation system performance test》DLT 467-
The method of 6.1.3 items " adjusts shrinkage cavity or the air door on primary air piping, so that each primary air piping maximum quantity of wind in the cold state in 2004
Relative standard deviation values are not more than ± 5%." experiment key be it is accurate measure primary air piping maximum quantity of wind, calculate relative deviation.
Currently, measure primary air piping maximum quantity of wind device and method and there are the problem of include：1, BS types bourdon's tube is surveyed
Amount method；Such as application No. is 201610388145.2 Chinese patent, since BS type bourdon's tube positive pressure pressure sensing holes are wanted and airflow direction
30 ° of angle is kept, slightly deviation will result in total head and measure very large deviation, and static pressure measurement also can be inaccurate, therefore close
Year seldom uses.What use was more at present is the spot measurement method of average.2, the multimetering method of average；Measuring point chooses use etc.
Section ring method, chooses 1-3 gaging hole on same section, and each gaging hole chooses 6-10 point using backing tube, Pitot tube
Or anemobiagraph measures dynamic pressure or wind speed, then calculates mean wind speed, goes out maximum quantity of wind using wind speed and tube cell areal calculation.Often
An operating mode is measured, each tube cell needs the dynamic pressure of 8-18 point of measurement or wind speed, every coal pulverizer to correspond to 4-8 tube cell,
32-72 measuring point is added up, each measuring point needs 30-60 seconds.Every coal pulverizer leveling needs to carry out three operating modes, according to for many years
Field test experience at least needs three hours or more, and every unit carries out the primary experiment and needs 18-48 hours.It is long in time limit, examination
It is very big to test personnel labor intensity, measurement error is big.
Invention content
It is an object of the invention to overcome above-mentioned deficiency existing in the prior art, and provide a kind of reasonable in design
The wind speed measuring device and its wind measurement method of thermal power plant's coal pulverizer outlet First air fast leveling, high certainty of measurement, survey
Amount speed is fast, testing crew labor intensity is small.
Technical solution is used by the present invention solves the above problems：A kind of thermal power plant's coal pulverizer outlet fast velocity modulation of First air
Flat wind speed measuring device, which is characterized in that including double fluted shape pitot tubes, tube socket, ball valve, seal assembly and short tube；The pipe
Seat is fixed on the side of ball valve, and the short tube is fixed on the other side of ball valve, and the seal assembly is sleeved on double fluted shape pitot tubes
On, the seal assembly and the detachable connection of short tube；The seal assembly includes sealed base, gasket seal, sealing pressure
Lid and sealed pressure pad, the sealed base are fixed with sealing gland cooperation, are formed between the sealed base and sealing gland empty
Chamber, the gasket seal and sealed pressure pad are respectively positioned in the cavity；Double fluted shape pitot tubes include positive pressure side pipe and negative pressure
Side pipe, the positive pressure side pipe connect and are arranged side by side with negative pressure side pipe；A S-type bending and necking for the positive pressure side pipe,
A S-type bending and necking for the negative pressure side pipe, one of the positive pressure side pipe with a mirror-image arrangement of negative pressure side pipe
And the head end of double fluted shape pitot tubes is formed, the other end of the positive pressure side pipe is flush with the other end of negative pressure side pipe and is formed double
The tail end of fluted shape pitot tube；It is provided with several positive pressure sensing holes on the positive pressure side pipe, is provided on the negative pressure side pipe several negative
The position of pressure sensing hole, the positive pressure sensing hole is corresponding with the position of negative pressure sensing hole.One of positive pressure side pipe and negative pressure side pipe is big
Necking at about 6cm, other end are blind pipe；One of positive pressure side pipe and negative pressure side pipe bends to S types and facilitates connection silicone tube, silicon
Sebific duct is connect with differential manometer carries out measuring wind speed.
Furthermore, the outer diameter of the positive pressure side pipe and negative pressure side pipe be 10mm, wall thickness 1mm；The positive pressure side pipe
One and negative pressure side pipe one equal necking of outer diameter to 8mm.It is suitble to the wind of First air in a wind pipe under normal conditions
Speed measures.
Furthermore, the positive pressure sensing hole is provided with 10.The position of opening of double fluted shape pitot tubes is according to pulverized coal channel
Internal diameter foundation《Power station coal pulverizer and pulverized coal preparation system performance test》DLT 467, which is calculated, to be determined.
Furthermore, the aperture of the positive pressure sensing hole and negative pressure sensing hole is 0.1-0.5mm.Reasonable design.
Furthermore, the opening direction angulation of corresponding positive pressure sensing hole and negative pressure sensing hole is 90 °.Positive pressure side pipe
The punching of 10 points is chosen to get to positive pressure sensing hole according to cross-section method in front；Negative pressure side pipe is in two sides according to cross-section
Method respectively chooses 10 point punchings to get to negative pressure sensing hole, and it is identical as positive pressure sensing hole aperture to bear pressure sensing hole.
Furthermore, the positive pressure side pipe and negative pressure side pipe are copper pipe, the positive pressure side pipe and the welding of negative pressure side pipe
It is fixed.Selection is reasonable, fixation.
A kind of measuring wind speed of the wind speed measuring device of thermal power plant's coal pulverizer outlet as described above First air fast leveling
Method, which is characterized in that the wind measurement method is as follows：According to pipe on the straight pipe of a wind pipe of coal pulverizer outlet
One end of tube socket is simultaneously fixed to tapping by the diameter trepanning of seat；The other end of ball valve and tube socket is fixed, by one end of short tube
It is fixed with ball valve；Double fluted shape pitot tubes are sequentially passed through into sealing gland, sealed pressure pad, gasket seal and sealed base by tail end,
Gasket seal and sealed pressure pad are installed on sealed base, sealing gland and sealed base cooperation are made into gasket seal and sealing
Pressure pad compresses sealing gland until seal assembly and double fluted shape pitot tubes in the cavity between sealed base and sealing gland
It seals and double fluted shape pitot tubes can be moved in its axis direction；The direction of the double fluted shape pitot tubes of adjustment makes the positive pressure-sensitive of positive pressure side pipe
Hole faces airflow direction；Ball valve is opened, the other end of seal assembly and short tube is fixed；Mobile double fluted shape pitot tubes make its tail
End passes sequentially through short tube, ball valve and tube socket and finally stretches into a wind pipe, when the tail end and primary air piping of double fluted shape pitot tubes
When the inner wall contact in road, stop mobile double fluted shape pitot tubes；With connecting tube by the necking of positive pressure side pipe in head end and negative pressure side pipe
Necking connect respectively with the positive pressure side of differential manometer and suction side, recorded after differential manometer stable reading, measuring wind speed knot
Beam；It extracts double fluted shape pitot tubes out from a wind pipe, closes ball valve；According to above-mentioned steps, other primary air pipings are measured successively
The wind speed in road, and the wind speed deviation of each a wind pipe is calculated, according in the corresponding a wind pipe of wind speed deviation adjusting
Adjustable shrinkage cavity and carry out measuring wind speed, until the wind speed deviation of each a wind pipe is met the requirements of the standard.
A double fluted shape pitot tube can be respectively mounted in a wind pipe of same coal pulverizer, while to each primary air piping
Road measures；Test period is further saved, work efficiency is high.
Furthermore, the connecting tube is silicone tube.Preferred embodiment.
Compared with prior art, the present invention haing the following advantages and effect：The present invention measures one using double fluted shape pitot tubes
Wind speed and air quantity in secondary wind pipeline solve the problems, such as that angle requirement is stringent when the measurement of BS type bourdon's tubes, measurement error is big.Also
It can solve to calculate existing for average air quantity method once after using Pitot tube, backing tube or anemobiagraph spot measurement in the prior art
The problem that long in time limit, testing crew labor intensity is big and measurement error is big is tested in wind leveling.Thermal power plant's coal pulverizer exports First air
The wind speed measuring device reference standard Pitot tube of fast leveling, the principle of backing tube and BS type bourdon's tubes and method make, this hair
Bright high certainty of measurement, measuring speed are fast, testing crew labor intensity is small, and from the point of view of service condition, test period can contract
It is as short as 1/5 or so of single-spot way.
Description of the drawings
Fig. 1 is the entirety of the wind speed measuring device of moderate heat power plant coal of embodiment of the present invention outlet First air fast leveling
Structural schematic diagram.
Fig. 2 be moderate heat power plant coal of embodiment of the present invention outlet First air fast leveling wind speed measuring device with it is primary
The positional structure schematic diagram of wind pipeline.
Fig. 3 is the structural schematic diagram of double fluted shape pitot tubes in the embodiment of the present invention.
Fig. 4 is the enlarged structure schematic diagram in the faces A-A in Fig. 3.
Fig. 5 is that double fluted shape pitot tubes and the sectional structure of tube socket, ball valve, seal assembly and short tube show in the embodiment of the present invention
It is intended to.
Fig. 6 is the cross section structure schematic diagram of short tube in the embodiment of the present invention.
Fig. 7 is the cross section structure schematic diagram of sealing gland in the embodiment of the present invention.
Fig. 8 is the structural schematic diagram of sealed pressure pad in the embodiment of the present invention.
In figure：It is double fluted shape pitot tubes 1, tube socket 2, ball valve 3, seal assembly 4, short tube 5, sealed base 6, gasket seal 7, close
Sealed cover 8, sealed pressure pad 9, a wind pipe 10, positive pressure side pipe 11, negative pressure side pipe 12, positive pressure sensing hole 13, negative pressure sensing hole 14, head
End 101, tail end 102.
Specific implementation mode
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited in following embodiments.
Embodiment.
Referring to Fig. 1 to Fig. 8, a kind of wind speed measuring device of thermal power plant's coal pulverizer outlet First air fast leveling, including it is double
Fluted shape pitot tube 1, tube socket 2, ball valve 3, seal assembly 4 and short tube 5.
Tube socket 2 is fixed on the side of ball valve 3 by screw thread, and short tube 5 is fixed on the other side of ball valve 3 by screw thread, sealing
Component 4 is sleeved on double fluted shape pitot tubes 1, seal assembly 4 and the detachable connection of short tube 5；Seal assembly 4 includes sealing bottom
Seat 6, gasket seal 7, sealing gland 8 and sealed pressure pad 9, sealed base 6 are fixed with the cooperation of sealing gland 8, sealed base 6 with it is close
Cavity is formed between sealed cover 8, gasket seal 7 and sealed pressure pad 9 are respectively positioned in cavity, wherein：Gasket seal 7 and sealed base
6 contacts, sealed pressure pad 9 are contacted with sealing gland 8.
Double fluted shape pitot tubes 1 include positive pressure side pipe 11 and negative pressure side pipe 12, and positive pressure side pipe 11 and negative pressure side pipe 12 are copper
Pipe, the outer diameter of positive pressure side pipe 11 and negative pressure side pipe 12 is 10mm, wall thickness 1mm, and positive pressure side pipe 11 and the welding of negative pressure side pipe 12 are solid
Determine and is arranged side by side；A S-type bending and necking for positive pressure side pipe 11, the S-type bending and necking of negative pressure side pipe 12,
One head mirror picture of one of positive pressure side pipe 11 and negative pressure side pipe 12 arranges and form the head end 101 of double fluted shape pitot tubes 1, positive pressure side
The other end of pipe 11 is flush with the other end of negative pressure side pipe 12 and forms the tail end 102 of double fluted shape pitot tubes 1；Double fluted shapes test the speed
For the head end 101 of pipe 1 in the places 6cm or so necking to 8mm, the tail end 102 of double fluted shape pitot tubes 1 is blind pipe.
It is provided with several positive pressure sensing holes 13 on positive pressure side pipe 11, several negative pressure sensing holes 14 are provided on negative pressure side pipe 12, and
The position of positive pressure sensing hole 13 is corresponding with the position of negative pressure sensing hole 14.In the present embodiment, positive pressure sensing hole 13 is provided with 10, positive to feel
It is 0.1-0.5mm to press the aperture of hole 13 and negative pressure sensing hole 14；Positive pressure side pipe 11 chooses 10 points in front according to cross-section method
Position punching is to get to positive pressure sensing hole 13；Negative pressure side pipe 12 two sides respectively choose according to cross-section method the punching of 10 points to get
To negative pressure sensing hole 14, it follows that the opening direction angulation of corresponding positive pressure sensing hole 13 and negative pressure sensing hole 14 is 90 °.
A kind of measuring wind speed of the wind speed measuring device of thermal power plant's coal pulverizer outlet as described above First air fast leveling
Method, wind measurement method are as follows：According to the diameter trepanning of tube socket 2 on the straight pipe of a wind pipe 10 of coal pulverizer outlet
And one end of tube socket 2 is fixed to tapping, at this point, the center of tube socket 2 also has hole, moreover, the size of 2 mesoporous of tube socket with it is double
The sectional dimension of fluted shape pitot tube 1 matches；Ball valve 3 and the other end of tube socket 2 are fixed by screw thread, by one end of short tube 5
It is fixed by screw thread with ball valve 3；Double fluted shape pitot tubes 1 are sequentially passed through into sealing gland 8, sealed pressure pad 9, sealing by tail end 102
Gasket 7 and sealed base 6, gasket seal 7 and sealed pressure pad 9 are installed on sealed base 6, by sealing gland 8 and sealing bottom
6 cooperation of seat makes gasket seal 7 and sealed pressure pad 9 in the cavity between sealed base 6 and sealing gland 8, compresses sealing pressure
Lid 8 is until seal assembly 4 and double fluted shape pitot tubes 1 seal and double fluted shape pitot tubes 1 can be moved in its axis direction；The double flutes of adjustment
The direction of shape pitot tube 1 makes the positive pressure sensing hole 13 of positive pressure side pipe 11 face airflow direction；Open ball valve, by seal assembly 4 with
The other end of short tube 5 is fixed；It is final that mobile double fluted shape pitot tubes 1 make its tail end 102 pass sequentially through short tube 5, ball valve 3 and tube socket 2
It stretches into a wind pipe 10, when the inner wall of the tail end 102 of double fluted shape pitot tubes 1 and a wind pipe 10 contacts, stops moving
Dynamic double fluted shape pitot tubes 1；With silicone tube by the necking of positive pressure side pipe 11 in head end 101 and the necking of negative pressure side pipe 12 respectively with it is micro-
The positive pressure side of pressure meter is connected with suction side, is recorded after differential manometer stable reading, measuring wind speed terminates；From a wind pipe
It extracts double fluted shape pitot tubes 1 in 10 out, closes ball valve；According to above-mentioned steps, the wind speed of other a wind pipes 10 is measured successively, and
The wind speed deviation for calculating each a wind pipe 10, according to the adjustable shrinkage cavity in the corresponding a wind pipe of wind speed deviation adjusting 10
And measuring wind speed is carried out, until the wind speed deviation of each a wind pipe 10 is met the requirements of the standard.
During measuring wind speed, tube socket 2 can keep double fluted shape pitot tubes 1 to hang down with airflow direction in a wind pipe 10
Directly, gasket seal 7 is interference fitted with double fluted shape pitot tubes 1 in seal assembly 4, can keep leakproofness；It also can be in same coal-grinding
A double fluted shape pitot tube 1 is respectively mounted in a wind pipe 10 of machine, multiple double fluted shape pitot tubes 1 are simultaneously to each a wind pipe
10 measure；Test period can be further saved in this way, and work efficiency is high.
Although the present invention is disclosed as above with embodiment, it is not limited to protection scope of the present invention, any to be familiar with
The technical staff of this technology changes and retouches made by without departing from the spirit and scope of the invention, should all belong to this hair
Bright protection domain.
Claims (8)
1. a kind of wind speed measuring device of thermal power plant's coal pulverizer outlet First air fast leveling, which is characterized in that including double fluted shapes
Pitot tube, tube socket, ball valve, seal assembly and short tube；The tube socket is fixed on the side of ball valve, and the short tube is fixed on ball valve
The other side, the seal assembly are sleeved on double fluted shape pitot tubes, the seal assembly and the detachable connection of short tube；It is described
Seal assembly includes sealed base, gasket seal, sealing gland and sealed pressure pad, and the sealed base and sealing gland cooperation are solid
It is fixed, cavity is formed between the sealed base and sealing gland, the gasket seal and sealed pressure pad are respectively positioned in the cavity；
Double fluted shape pitot tubes include positive pressure side pipe and negative pressure side pipe, and the positive pressure side pipe connect and is arranged side by side with negative pressure side pipe；
A S-type bending and necking for the positive pressure side pipe, the S-type bending and necking of the negative pressure side pipe, the positive pressure
One head mirror picture of one of side pipe and negative pressure side pipe arranges and form the head end of double fluted shape pitot tubes, the positive pressure side pipe it is another
The other end of head and negative pressure side pipe is flush and forms the tail end of double fluted shape pitot tubes；Be provided on the positive pressure side pipe it is several just
Pressure sensing hole is provided with several negative pressure sensing holes, the position of the positive pressure sensing hole and the position phase of negative pressure sensing hole on the negative pressure side pipe
It is corresponding.
2. the wind speed measuring device of thermal power plant's coal pulverizer outlet according to claim 1 First air fast leveling, feature
It is, the outer diameter of the positive pressure side pipe and negative pressure side pipe is 10mm, wall thickness 1mm；One and suction side of the positive pressure side pipe
The equal necking of outer diameter of one of pipe is to 8mm.
3. the wind speed measuring device of thermal power plant's coal pulverizer outlet according to claim 1 First air fast leveling, feature
It is, the positive pressure sensing hole is provided with 10.
4. the wind speed measuring device of thermal power plant's coal pulverizer outlet according to claim 1 First air fast leveling, feature
It is, the aperture of the positive pressure sensing hole and negative pressure sensing hole is 0.1-0.5mm.
5. the wind speed measuring device of thermal power plant's coal pulverizer outlet according to claim 1 First air fast leveling, feature
It is, the opening direction angulation of corresponding positive pressure sensing hole and negative pressure sensing hole is 90 °.
6. the wind speed measuring device of thermal power plant's coal pulverizer outlet according to claim 1 First air fast leveling, feature
It is, the positive pressure side pipe and negative pressure side pipe are copper pipe, and the positive pressure side pipe and negative pressure side pipe are welded and fixed.
7. a kind of wind of thermal power plant's coal pulverizer outlet First air fast leveling as described in any one of claim 1-6 claims
The wind measurement method of speed measuring device, which is characterized in that the wind measurement method is as follows：First air in coal pulverizer outlet
It is fixed to tapping according to the diameter trepanning of tube socket on the straight pipe of pipeline and by one end of tube socket；By the another of ball valve and tube socket
End is fixed, and one end of short tube is fixed with ball valve；By double fluted shape pitot tubes by tail end sequentially pass through sealing gland, sealed pressure pad,
Gasket seal and sealed base, gasket seal and sealed pressure pad are installed on sealed base, by sealing gland and sealed base
Cooperation makes gasket seal and sealed pressure pad in the cavity between sealed base and sealing gland, compresses sealing gland until close
Sealing assembly and double fluted shapes test the speed the seal of tube and double fluted shape pitot tubes can be moved in its axis direction；The side of the double fluted shape pitot tubes of adjustment
Airflow direction is faced to the positive pressure sensing hole of positive pressure side pipe is made；Ball valve is opened, the other end of seal assembly and short tube is fixed；It moves
Dynamic double fluted shape pitot tubes make its tail end pass sequentially through short tube, ball valve and tube socket finally to stretch into a wind pipe, when double fluted shapes are surveyed
When the tail end of fast pipe and the inner wall of a wind pipe contact, stop mobile double fluted shape pitot tubes；With connecting tube by positive pressure in head end
The necking of side pipe and the necking of negative pressure side pipe are connect with the positive pressure side of differential manometer and suction side respectively, after differential manometer stable reading
It is recorded, measuring wind speed terminates；It extracts double fluted shape pitot tubes out from a wind pipe, closes ball valve；According to above-mentioned steps, according to
It is secondary to measure the wind speed of other a wind pipes, and the wind speed deviation of each a wind pipe is calculated, according to the wind speed deviation adjusting
Adjustable shrinkage cavity in a wind pipe accordingly simultaneously carries out measuring wind speed, until the wind speed deviation of each a wind pipe meets mark
Alignment request.
8. the wind speed of the wind speed measuring device of thermal power plant's coal pulverizer outlet according to claim 7 First air fast leveling is surveyed
Amount method, which is characterized in that the connecting tube is silicone tube.
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| CN201810121153.XA CN108375684A (en) | 2018-02-07 | 2018-02-07 | The wind speed measuring device and its wind measurement method of a kind of thermal power plant's coal pulverizer outlet First air fast leveling |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108958304A (en) * | 2018-08-10 | 2018-12-07 | 国网山东省电力公司电力科学研究院 | A kind of First air leveling system and leveling method |
| CN110082560A (en) * | 2019-05-31 | 2019-08-02 | 润电能源科学技术有限公司 | Wind speed measuring device and method in a kind of portable coal-burning power plant's primary air piping |
| CN110261646A (en) * | 2019-07-22 | 2019-09-20 | 中国电建集团贵州电力设计研究院有限公司 | A kind of flue gas flow rate measurement calibrating installation |
| CN111007277A (en) * | 2019-11-18 | 2020-04-14 | 国网河北省电力有限公司电力科学研究院 | Automatic wind speed measuring device and primary wind speed leveling method |
| CN112462087A (en) * | 2020-11-17 | 2021-03-09 | 西安热工研究院有限公司 | Anti-pollution measuring device suitable for pulverized coal pipeline primary wind speed measurement |
| CN114088971A (en) * | 2022-01-21 | 2022-02-25 | 中国空气动力研究与发展中心空天技术研究所 | Waterproof wind speed measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108958304A (en) * | 2018-08-10 | 2018-12-07 | 国网山东省电力公司电力科学研究院 | A kind of First air leveling system and leveling method |
| CN110082560A (en) * | 2019-05-31 | 2019-08-02 | 润电能源科学技术有限公司 | Wind speed measuring device and method in a kind of portable coal-burning power plant's primary air piping |
| CN110082560B (en) * | 2019-05-31 | 2024-09-10 | 润电能源科学技术有限公司 | Portable device and method for measuring wind speed in primary air pipe of coal-fired power plant |
| CN110261646A (en) * | 2019-07-22 | 2019-09-20 | 中国电建集团贵州电力设计研究院有限公司 | A kind of flue gas flow rate measurement calibrating installation |
| CN111007277A (en) * | 2019-11-18 | 2020-04-14 | 国网河北省电力有限公司电力科学研究院 | Automatic wind speed measuring device and primary wind speed leveling method |
| CN112462087A (en) * | 2020-11-17 | 2021-03-09 | 西安热工研究院有限公司 | Anti-pollution measuring device suitable for pulverized coal pipeline primary wind speed measurement |
| CN114088971A (en) * | 2022-01-21 | 2022-02-25 | 中国空气动力研究与发展中心空天技术研究所 | Waterproof wind speed measuring device |
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