CN206469920U - A kind of distinguished and admirable measuring device - Google Patents
A kind of distinguished and admirable measuring device Download PDFInfo
- Publication number
- CN206469920U CN206469920U CN201720199743.5U CN201720199743U CN206469920U CN 206469920 U CN206469920 U CN 206469920U CN 201720199743 U CN201720199743 U CN 201720199743U CN 206469920 U CN206469920 U CN 206469920U
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- pressure
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- voltage tube
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- measuring device
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- 210000003800 Pharynx Anatomy 0.000 claims abstract description 26
- 230000002441 reversible Effects 0.000 claims abstract description 17
- 230000001702 transmitter Effects 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims abstract description 4
- 210000000867 Larynx Anatomy 0.000 claims description 18
- 239000005336 safety glass Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000010926 purge Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010008190 Cerebrovascular accident Diseases 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 208000006011 Stroke Diseases 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Abstract
The utility model is related to field of measuring technique, especially a kind of distinguished and admirable measuring device, including the multiple spot average rate double throat diameter flowmeter being fixed on pipeline, multiple spot average rate double throat diameter flowmeter includes high pressure pressure end and low pressure pressure end, also include differential pressure transmitter, high-voltage tube, low-voltage tube, high pressure anti-blowpipe and low-pressure reversal blower pipe, the high pressure pressure end is connected by high-voltage tube with the high-pressure side of differential pressure transmitter, the low pressure pressure end is connected by low-voltage tube with the low-pressure end of differential pressure transmitter, stop valve is respectively equipped with the high-voltage tube and low-voltage tube, back-flushing valve is respectively equipped with the high pressure anti-blowpipe and low-pressure reversal blower pipe, high pressure anti-blowpipe and low-pressure reversal blower pipe have been connected respectively on the high-voltage tube and low-voltage tube, the high pressure anti-blowpipe and low-pressure reversal blower pipe are connected to the lower section of stop valve, blowback is carried out by the gas circuit periodically to multiple spot average rate double throat diameter flowmeter, prevent stopping state, it ensure that the measurement accuracy of multiple spot average rate double throat diameter flowmeter.
Description
Technical field
The utility model is related to field of measuring technique, especially a kind of distinguished and admirable measuring device.
Background technology
Multiple spot average rate double throat diameter flow apparatus be developed on the basis of inserted double throttle flowmeter and
A kind of new product of flow measurement.The product utilization big signal of many larynx run-off devices, the characteristics of anti-blocking performance is superior, with reference to
The flow measurement technology of bar class flowmeter multiple spot average rate, multiple profiles is designed as the double throat diameter flow apparatus group of bullet shape
It is combined, then respective high and low pressure pressure room is serially connected respectively, differential pressure signal is finally drawn.It can be widely used for each
Kind of air measuring occasion, be particularly suitable for thermal power plant once, secondary air flow and the not enough coal pulverizer of straight length is installed
The measurement of entrance air quantity.
Patent No. ZL2006201648900 discloses a kind of plug-in type multiple spot average rate double throat diameter flow apparatus, although solution
The problem that big-and-middle-sized pipeline flow of having determined is measured, it is ensured that the less pressure loss, but this device is when the dust in the air channel of measurement
When larger, the pressure gas circuit of multiple spot average rate double throat diameter flowmeter is still easy to stopping state occur, so as to cause measurement inaccurate
Really.
Utility model content
The technical problems to be solved in the utility model is：In order to solve the pressure of existing multiple spot average rate double throat diameter flowmeter
Gas circuit is easy to stopping state problem occur when being measured in the larger environment of dust, the utility model provides a kind of wind flow
Measurement apparatus, by setting high pressure anti-blowpipe and low-pressure reversal blower pipe, periodically the gas circuit to multiple spot average rate double throat diameter flowmeter is carried out
Blowback, it is therefore prevented that stopping state, so as to effectively ensure the accurate of in the case of big dust multiple spot average rate double throat diameter flowmeter
Property.
The utility model solves the technical scheme that its technical problem used：
A kind of distinguished and admirable measuring device, including the multiple spot average rate double throat diameter flowmeter being fixed on pipeline, multiple spot average rate are double
Larynx runoff gauge includes high pressure pressure end and low pressure pressure end, in addition to differential pressure transmitter, high-voltage tube, low-voltage tube, high pressure blowback
Pipe and low-pressure reversal blower pipe, the high pressure pressure end are connected by high-voltage tube with the high-pressure side of differential pressure transmitter, the low pressure pressure
End is connected by low-voltage tube with the low-pressure end of differential pressure transmitter, and stop valve is respectively equipped with the high-voltage tube and low-voltage tube, described
It is respectively equipped with high pressure anti-blowpipe and low-pressure reversal blower pipe on back-flushing valve, the high-voltage tube and low-voltage tube and has been connected respectively high pressure
Anti-blowpipe and low-pressure reversal blower pipe, the high pressure anti-blowpipe and low-pressure reversal blower pipe are connected to the lower section of stop valve.
The utility model provides a kind of distinguished and admirable measuring device, and the multiple spot average rate double throat diameter flowmeter also includes sealing
Ring flange on pipeline and double larynxs take gas equipment, and described pair of larynx takes gas equipment to be fixedly connected on the bottom of ring flange, the height
Pressure pressure end and low pressure pressure end are fixedly connected on the top of ring flange, and high pressure pressure end and low pressure pressure end take gas with double larynxs
Equipment is connected, and is fixed by ring flange, it is ensured that multiple spot average rate double throat diameter flowmeter, double larynxs take the axis direction of gas equipment with
The axis direction for measuring pipeline is parallel, so as to ensure the degree of accuracy of measurement.
The utility model provides a kind of distinguished and admirable measuring device, and the ring flange is provided with takes gas to set for observing double larynxs
Safety glass is provided with standby observation panel, the observation panel, the safety glass is connected with flangeseal, can be directly perceived at any time
The double larynxs of observation take the state of gas equipment, if the problems such as wearing and tearing.
The utility model provides a kind of distinguished and admirable measuring device, and the ring flange is the length of rectangle, wherein ring flange
Side is parallel with the traffic direction of wind in pipeline, and pair larynxs take the axis side of gas equipment when facilitating the installation of multiple spot average rate double throat diameter flowmeter
It is parallel to the axis direction with measuring pipeline, so as to ensure the degree of accuracy of measurement.
The utility model provides a kind of distinguished and admirable measuring device, and the observation panel is circular arc, it is ensured that maximum visual angle
To observe.
The utility model provides a kind of distinguished and admirable measuring device, in addition to balance pipe, and the balance pipe is arranged on cut-off
The top of valve, and the high-voltage tube is connected with low-voltage tube, balanced valve is set on the balance pipe, for ensureing high-voltage tube and low
Detect whether differential pressure transmitter is accurate in the case of pressure pipe pressure balance.
The utility model provides a kind of distinguished and admirable measuring device, and the air inlet direction of the pipeline is provided with screen pack,
Prevent larger object from causing the damage of multiple spot average rate double throat diameter flowmeter.
The beneficial effects of the utility model are：The utility model provides a kind of distinguished and admirable measuring device, effectively
It ensure that the measurement accuracy of multiple spot average rate double throat diameter flowmeter so that multiple spot average rate double throat diameter flowmeter can be various severe
Under conditions of carry out air quantity measurement, further expand detection range；By setting observation panel to enable maintainer very
Intuitively observe multiple spot average rate double throat diameter flowmeter situation in pipeline, it is not necessary to dismantled, greatly facilitate maintenance.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of structural representation of distinguished and admirable measuring device；
Fig. 2 is the structural representation of ring flange.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As shown in figure 1, a kind of distinguished and admirable measuring device, including the multiple spot average rate double throat diameter flowmeter being fixed on pipeline 1
2, wherein F direction is the flow direction of the apoplexy of pipeline 1, and multiple spot average rate double throat diameter flowmeter 2 includes high pressure pressure end 21 and low pressure takes
Pressure side 22, in addition to differential pressure transmitter 3, high-voltage tube 4, low-voltage tube 5, high pressure anti-blowpipe 6 and low-pressure reversal blower pipe 7, high pressure pressure end
21 are connected by high-voltage tube 4 with the high-pressure side of differential pressure transmitter 3, and low pressure pressure end 22 passes through low-voltage tube 5 and differential pressure transmitter 3
Low-pressure end is connected, and is respectively equipped with stop valve 9, high pressure anti-blowpipe 6 and low-pressure reversal blower pipe 7 and is set respectively on high-voltage tube 4 and low-voltage tube 5
Have and be connected respectively high pressure anti-blowpipe 6 and low-pressure reversal blower pipe 7, high pressure anti-blowpipe on back-flushing valve 8, high-voltage tube 4 and low-voltage tube 5
6 and low-pressure reversal blower pipe 7 be connected to the lower section of stop valve 9.
In a kind of specific embodiment, multiple spot average rate double throat diameter flowmeter 2 also includes the ring flange 23 being sealed on pipeline 1
Gas equipment 24 is taken with double larynxs, double larynxs take gas equipment 24 to be fixedly connected on the bottom of ring flange 23, and high pressure pressure end 21 and low pressure take
Pressure side 22 is fixedly connected on the top of ring flange 23, and high pressure pressure end 21 and low pressure pressure end 22 take gas equipment 24 to connect with double larynxs
It is logical.
In a kind of specific embodiment, ring flange 23, which is provided with, to be used to observe the observation panel 25 that double larynxs take gas equipment 24, is seen
Examine and safety glass is provided with mouth 25, safety glass is tightly connected with ring flange 23.
Preferably, ring flange 23 is rectangle, the wherein long side of ring flange 23 is parallel with the traffic direction of wind in pipeline 1
Preferably, observation panel 25 is circular arc.
In a kind of specific embodiment, in a kind of specific embodiment, in addition to balance pipe 10, balance pipe 10, which is arranged on, to be cut
The only top of valve 9, and high-voltage tube 4 is connected with low-voltage tube 5, sets balanced valve 11 on balance pipe 10.
Preferably, the air inlet direction of pipeline 1 is provided with screen pack.
Measuring principle：According to velocity-area method flow measurement principle, pair that multiple profiles are designed according to bullet shape
Larynx runoff measuring device, is combined by design attitude, is then installed on the meter that flow velocity (flow) is carried out in tested pipeline
Amount.According to the form of resistance piece before and after line size size, throttling element and fluidised form in straight length and pipe can be installed when in use
Distribution situation, installs one or more sets this measurement apparatus, and takes out defeated after their high and low pressure pressure guiding pipe is interconnected respectively
Go out signal, so as to reach the average purpose of multiple spot differential pressure flow velocity, overcome due to resistance before and after installation straight length deficiency, throttling element
The measurement error that flow distortion caused by the choked flow piece such as part and pipeline internal support is caused.
During installation, the installation site of multiple spot average rate double throat diameter flowmeter 2 directly affects its measurement result.Peace is selected on pipeline
When filling plug-in type multiple spot average rate double throttle flowmeter, mount point position should be correctly selected according to requirements for pipes；Installation site
It is determined that after, a slot is opened along axis direction in test point, slot is matched with ring flange 23, then by special rectangle
Welding flange 23 is placed on pipeline slot, notices that the long side of ring flange is parallel with conduit axis during welding.
Blowing method is online：The pressure valve before differential pressure transmitter is first shut off, source of the gas is then connected outside blow down valve
Pressure opens purging valve, opens compressed air and purged, after two blowings are finished, shut purging in 0.6~0.8MPa
Valve, finally opens pressure valve by regulation.For purge cycles, it should formulate more reasonable according to the property and clean level of medium
Ground purge cycles, to improve product reliability and service life., should in the upstream of measurement pipeline when measured medium cleanliness factor is poor
Install effectively sundries cleaning device additional, prevent measurement part to be blocked.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this utility model technological thought completely.This reality
The content on specification is not limited to new technical scope, it is necessary to its technology is determined according to right
Property scope.
Claims (6)
1. a kind of distinguished and admirable measuring device, including the multiple spot average rate double throat diameter flowmeter (2) being fixed on pipeline (1), multiple spot is equal
Fast double throat diameter flowmeter (2) includes high pressure pressure end (21) and low pressure pressure end (22), it is characterised in that：Also include differential pressure transporting
Device (3), high-voltage tube (4), low-voltage tube (5), high pressure anti-blowpipe (6) and low-pressure reversal blower pipe (7), the high pressure pressure end (21) pass through
High-voltage tube (4) is connected with the high-pressure side of differential pressure transmitter (3), and the low pressure pressure end (22) is become by low-voltage tube (5) and differential pressure
Send the low-pressure end of device (3) to connect, stop valve (9), the high pressure blowback are respectively equipped with the high-voltage tube (4) and low-voltage tube (5)
It is respectively equipped with back-flushing valve (8), the high-voltage tube (4) and low-voltage tube (5) to correspond to respectively on pipe (6) and low-pressure reversal blower pipe (7) and connects
High pressure anti-blowpipe (6) and low-pressure reversal blower pipe (7) are connected to, the high pressure anti-blowpipe (6) and low-pressure reversal blower pipe (7) are connected to stop valve
(9) lower section.
2. a kind of distinguished and admirable measuring device as claimed in claim 1, it is characterised in that：The multiple spot average rate double throat diameter flowmeter
(2) ring flange (23) and double larynxs for also including being sealed on pipeline (1) take gas equipment (24), and described pair of larynx takes gas equipment (24) solid
Surely the bottom of ring flange (23) is connected to, the high pressure pressure end (21) and low pressure pressure end (22) are fixedly connected on ring flange
(23) top, and high pressure pressure end (21) and low pressure pressure end (22) take gas equipment (24) to connect with double larynxs.
3. a kind of distinguished and admirable measuring device as claimed in claim 2, it is characterised in that：The ring flange (23), which is provided with, to be used for
The double larynxs of observation take and safety glass are provided with the observation panel (25) of gas equipment (24), the observation panel (25), the safety glass with
Ring flange (23) is tightly connected.
4. a kind of distinguished and admirable measuring device as claimed in claim 2 or claim 3, it is characterised in that：The ring flange (23) is rectangular
The long side of shape, wherein ring flange (23) is parallel with the traffic direction of pipeline (1) interior wind.
5. a kind of distinguished and admirable measuring device as claimed in claim 1, it is characterised in that：Also include balance pipe (10), it is described flat
Weighing apparatus pipe (10) is arranged on the top of stop valve (9), and the high-voltage tube (4) is connected with low-voltage tube (5), the balance pipe (10)
Upper setting balanced valve (11).
6. a kind of distinguished and admirable measuring device as claimed in claim 1, it is characterised in that：The air inlet direction of the pipeline (1)
It is provided with screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199743.5U CN206469920U (en) | 2017-03-03 | 2017-03-03 | A kind of distinguished and admirable measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720199743.5U CN206469920U (en) | 2017-03-03 | 2017-03-03 | A kind of distinguished and admirable measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206469920U true CN206469920U (en) | 2017-09-05 |
Family
ID=59713110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720199743.5U Active CN206469920U (en) | 2017-03-03 | 2017-03-03 | A kind of distinguished and admirable measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206469920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418569A (en) * | 2021-06-18 | 2021-09-21 | 马鞍山钢铁股份有限公司 | Cleaning device for venturi tube flow measurement pipeline and control method thereof |
-
2017
- 2017-03-03 CN CN201720199743.5U patent/CN206469920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418569A (en) * | 2021-06-18 | 2021-09-21 | 马鞍山钢铁股份有限公司 | Cleaning device for venturi tube flow measurement pipeline and control method thereof |
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| GR01 | Patent grant |