CN209689684U - A kind of chimney flowmeter - Google Patents
A kind of chimney flowmeter Download PDFInfo
- Publication number
- CN209689684U CN209689684U CN201920645824.2U CN201920645824U CN209689684U CN 209689684 U CN209689684 U CN 209689684U CN 201920645824 U CN201920645824 U CN 201920645824U CN 209689684 U CN209689684 U CN 209689684U
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- China
- Prior art keywords
- tube body
- chimney
- holes
- connecting flange
- stomata
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Abstract
The utility model discloses a kind of chimney flowmeters, including an integrally formed solid tube body, the length direction of tube body opens up two through-holes being parallel to each other, the equal sealed set in the both ends of every through-hole, the end of solid tube body is equipped with a connector, and connector is connected to two through-holes；It is communicated with three groups of stomatas on each through-hole, in the chimney flowmeter, by an integrally formed solid tube body, opens up two through-holes parallel to each other in the longitudinal direction；Connecting flange and connecting flange lid on cooperation tube body are reliably fixed, then realize data acquisition by three groups of stomatas, through-hole, realize flow detection, and the utility model is designed reasonably is suitble to promote the use of.
Description
Technical field
The utility model relates to monitoring instrument fields, and in particular to a kind of chimney flowmeter.
Background technique
Mean velocity tube flowmeter is a kind of measuring instrument, also known as Annular Round Model PFB (also known as fluted shape mean velocity tube flowmeter and support
Hand shaft flowmeter) belong to differential pressure flowmeter.Annular Round Model PFB is using the dynamic of Pitot tube measuring principle measurement block body upstream
The pressure difference formed between pressure and the static pressure in downstream, to achieve the purpose that measuring flow.Measurement pipe diameter is arrived in DN20
Between DN12000.Annular Round Model PFB is mainly used for the various energy such as liquid, fuel gas, steam and gas in industrial process
Measurement, stability and repeatability with higher.Design theory meets bernoulli equation principle, and available national measurement calibrating rule
Journey JJG640-94 differential pressure flowmeter vertification regulation is tested；
In existing nuclear power plant, even speed tube is also used on chimney, progress flow monitoring, but the chimney of nuclear power plant
Internal diameter is generally all in 3000mm, and common chimney flowmeter is unable to reach this requirement on the market.
Utility model content
The utility model in order to overcome the above-mentioned deficiencies of the prior art, provides a kind of chimney flowmeter.
The utility model achieves the above object through the following technical schemes:
A kind of chimney flowmeter, including an integrally formed solid tube body, the length direction of tube body open up two mutually
Parallel through-hole, the equal sealed set in the both ends of every through-hole, the end of solid tube body are equipped with a connector, connector and two
Through-hole connection；
Three groups of stomatas are communicated on each through-hole.
Preferably, the size of the tube body is 40*40*3800mm.
Preferably, every group of stomata includes two stomatas, and the stomata on two through-holes corresponds, the pitch of holes of three groups of stomatas
Respectively 1126mm, 2176mm and 2807mm, three groups of stomata mirror settings, stomata are provided at the diagonal line of tube body.
Preferably, the end of the tube body is equipped with a connecting flange lid, and the end is far from connector, connecting flange Gai Yuguan
It is equipped with a locating piece between the end of body, is arranged with a connecting flange on tube body, connecting flange is close to connector.
Preferably, gasket is equipped between the locating piece and connecting flange lid.
Preferably, the both ends of the through-hole are sealed by silk plug.
Preferably, the aperture of the stomata is between φ 6-8mm, and the aperture of through-hole is φ 12mm, between the hole of two through-holes
Away from for 20mm.
Preferably, the tube body is divided into acquisition portion, fixed part and measurement portion, and fixed position is in the two sides in acquisition portion, measurement
Portion is located at the side of fixed part, and is connected to by fixed part with acquisition portion, and stomata is located at acquisition portion, connecting flange and connecting flange
Lid is located at fixed part, and connector is located at measurement portion.
Preferably, the connector is 90 degree of elbow bends, and the end of 90 degree of elbow bends is connected with a shut-off valve.
The size of the chimney flowmeter is 40*40*3800mm, opens up two through-holes parallel to each other in the longitudinal direction,
Tube body is divided into three sections, and middle part is up to the acquisition portion of 3000mm, the fixed part at acquisition portion both ends, and the length of fixed part is 300mm,
In fixed part end be equipped with measurement portion, the length of measurement portion is 200mm；
Due to the flue gas flow in flowmeter measurement chimney, the internal diameter of chimney is 3000mm；Acquisition portion is located in chimney, stream
The corresponding stomata of every two is vertically arranged in three groups of stomatas of meter, and directly on top stomata is positive pressure gas hole, is located at just
The stomata of lower section is negative hole of calming the anger, and the collected flue gas data of stomata are transferred at the connecting bend of measurement portion by through-hole, then
It is accurately detected by external differential flow converter；
The connecting flange and connecting flange lid of fixed part are then used to connect the connecting flange of chimney two sides, realize that tube body is reliable
It is located in chimney.
The beneficial effects of the utility model are: in the chimney flowmeter, by an integrally formed solid tube body, in length
Two through-holes parallel to each other are opened up on direction；Connecting flange and connecting flange lid on cooperation tube body are reliably fixed, then
Data acquisition is realized by three groups of stomatas, through-hole, realizes flow detection.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the A of the utility model to structural schematic diagram.
In figure: 1. tube bodies, 2. through-holes, 3. stomatas, 4. connectors, 5. shut-off valves, 6. connecting flanges, 7. locating pieces, 8. connect
Acting flange lid, 9. silk plugs, 10. gaskets, 11. acquisition portions, 12. fixed parts, 13. measurement portions.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment 1:
As depicted in figs. 1 and 2, a kind of chimney flowmeter, including an integrally formed solid tube body 1, the length of tube body 1
Direction opens up two through-holes being parallel to each other 2, and the end of the equal sealed set in the both ends of every through-hole 2, solid tube body 1 is equipped with one
Connector 4, connector 4 are connected to two through-holes 2；
Three groups of stomatas 3 are communicated on each through-hole 2.
In the embodiment: the size of the tube body 1 is 40*40*3800mm.
In the embodiment: every group of stomata 3 includes two stomatas 3, and the stomata 3 on two through-holes 2 corresponds, three groups of stomatas
3 pitch of holes is respectively 1126mm, 2176mm and 2807mm, three groups of 3 mirror settings of stomata, and stomata 3 is provided with the diagonal of tube body 1
At line.
In the embodiment: the end of the tube body 1 is equipped with a connecting flange lid 8, and the end is far from connector 4, connection method
It is equipped with a locating piece 7 between blue lid 8 and the end of tube body 1, is arranged with a connecting flange 6 on tube body 1, connecting flange 6 leans on
Nearly connector 4.
In the embodiment: being equipped with gasket 10 between the locating piece 7 and connecting flange lid 8.
In the embodiment: the both ends of the through-hole 2 are sealed by silk plug 9.
In the embodiment: between φ 6-8mm, the aperture of through-hole 2 is φ 12mm, two through-holes 2 in the aperture of the stomata 3
Pitch of holes be 20mm.
In the embodiment: the tube body 1 divides for acquisition portion 11, fixed part 12 and measurement portion 13, and fixed part 12 is located at acquisition
The two sides in portion 11, measurement portion 13 is located at the side of fixed part 12, and is connected to by fixed part 12 with acquisition portion 11, and stomata 3 is located at
Acquisition portion 11, connecting flange 6 and connecting flange lid 8 are located at fixed part 12, and connector 4 is located at measurement portion 13.
In the embodiment: the connector 4 is 90 degree of elbow bends, and the end of 90 degree of elbow bends is connected with a cut-off
Valve 5.
Above-mentioned foundation the utility model is enlightenment, and through the above description, relevant staff completely can be not
In the range of deviateing this item utility model technical idea, various changes and amendments are carried out.This item utility model it is technical
Range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (9)
1. a kind of chimney flowmeter, it is characterised in that: including an integrally formed solid tube body, the length direction of tube body is opened up
Two through-holes being parallel to each other, the equal sealed set in the both ends of every through-hole, the end of solid tube body are equipped with a connector, connection
Head is connected to two through-holes；
Three groups of stomatas are communicated on each through-hole.
2. chimney flowmeter according to claim 1, it is characterised in that: the size of the tube body is 40*40*3800mm.
3. chimney flowmeter according to claim 1, it is characterised in that: every group of stomata includes two stomatas, two through-holes
On stomata correspond, the pitch of holes of three groups of stomatas is respectively 1126mm, 2176mm and 2807mm, and three groups of stomata mirror images are set
It sets, stomata is provided at the diagonal line of tube body.
4. chimney flowmeter according to claim 1, it is characterised in that: the end of the tube body is equipped with a connecting flange
Lid, the end are equipped with a locating piece, are arranged with a company on tube body far from connector between connecting flange lid and the end of tube body
Acting flange, connecting flange is close to connector.
5. chimney flowmeter according to claim 4, it is characterised in that: be equipped between the locating piece and connecting flange lid
Gasket.
6. chimney flowmeter according to claim 1, it is characterised in that: the both ends of the through-hole are sealed by silk plug.
7. chimney flowmeter according to claim 1, it is characterised in that: the aperture of the stomata leads between φ 6-8mm
The aperture in hole is φ 12mm, and the pitch of holes of two through-holes is 20mm.
8. chimney flowmeter according to claim 4, it is characterised in that: the tube body is divided into acquisition portion, fixed part and survey
Amount portion, in the two sides in acquisition portion, measuring point is connected in the side of fixed part, and by fixed part with acquisition portion fixed position,
Stomata is located at acquisition portion, and connecting flange and connecting flange lid are located at fixed part, and connector is located at measurement portion.
9. chimney flowmeter according to claim 1, it is characterised in that: the connector be 90 degree of elbow bends, 90 degree
The end of elbow bend is connected with a shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920645824.2U CN209689684U (en) | 2019-05-06 | 2019-05-06 | A kind of chimney flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920645824.2U CN209689684U (en) | 2019-05-06 | 2019-05-06 | A kind of chimney flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209689684U true CN209689684U (en) | 2019-11-26 |
Family
ID=68608624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920645824.2U Active CN209689684U (en) | 2019-05-06 | 2019-05-06 | A kind of chimney flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209689684U (en) |
-
2019
- 2019-05-06 CN CN201920645824.2U patent/CN209689684U/en active Active
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