CN206281538U - A kind of critical speed flowmeters and pipe-line system - Google Patents
A kind of critical speed flowmeters and pipe-line system Download PDFInfo
- Publication number
- CN206281538U CN206281538U CN201621462905.1U CN201621462905U CN206281538U CN 206281538 U CN206281538 U CN 206281538U CN 201621462905 U CN201621462905 U CN 201621462905U CN 206281538 U CN206281538 U CN 206281538U
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- China
- Prior art keywords
- orifice plate
- critical speed
- runner
- sealing
- speed flowmeters
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Abstract
The utility model is related to flowmeter to manufacture field, it is intended to solve the problems, such as that flowmeter labour intensity of the prior art is big and easily reveals, there is provided a kind of critical speed flowmeters and pipe-line system.It includes orifice plate and body, and body possesses the runner of both ends open and internal run-through, in the orifice plate installation through-hole for offering connection runner in the radial direction of body.Orifice plate is removably inserted into runner by orifice plate installation through-hole, and runner is divided into first flow and second flow channel.The first interface of connection first flow, and the second interface for connecting second flow channel are provided with body.Body possesses the runner of both ends open and internal run-through, orifice plate is arranged in the orifice plate installation through-hole of body so that the simple structure of critical speed flowmeters, and provide the stability of its own.Change critical speed flowmeters in orifice plate when, only with remove orifice plate change so that it is simple to operate, be difficult leak.
Description
Technical field
The utility model is related to flowmeter to manufacture field, in particular to a kind of critical speed flowmeters and pipeline system
System.
Background technology
Critical speed flowmeters operation principle is according to gas dynamics, when gas passes through critical flow nozzle, nozzle
Upstream and downstream stream pressure ratio is reached under conditions of a certain special value, and critical stream mode is formed in nozzle throat, and air-flow reaches most
Big speed (velocity of sound).The gas mass flow for flowing through nozzle also reaches maximum.Now only with nozzle entrance at stagnation pressure
It is relevant with temperature, without being influenceed by state change downstream.When measuring natural gas for example with critical speed flowmeters, gas
By orifice plate, upstream pressure is more than about one times of downstream pressure, reaches critical gas flows.In critical gas flows, at flow velocity section minimum,
The flow velocity of natural gas is equal to the velocity of sound in natural gas at such a temperature.Now, upstream pressure, the speed at flow velocity section minimum are increased
Degree does not increase, and only increases the density and flow of gas, therefore calculates outflow by utilizing upstream pressure.
Existing flowmeter needs pipeline to remove when orifice plate is exchanged for, also to remove instrument mounted thereto
Box, labour intensity is big, complex operation and operator is required higher, is easily leaked while changing, if toxic gas
Increased the danger coefficient of operator.
Utility model content
The utility model aims to provide a kind of critical speed flowmeters, and hole is being changed to solve flowmeter of the prior art
Labour intensity is big during plate and problem of easily leakage.
Another object of the present utility model is to provide a kind of pipe-line system with above-mentioned critical speed flowmeters.
What embodiment of the present utility model was realized in：
A kind of critical speed flowmeters, it includes orifice plate and body.Body possesses the stream of both ends open and internal run-through
Road, in the orifice plate installation through-hole for offering connection runner in the radial direction of body.Orifice plate is detachable by orifice plate installation through-hole
In ground insertion runner, and runner is divided into first flow and second flow channel.Connection first flow is provided with body
First interface, and connect the second interface of second flow channel.
The critical speed flowmeters that embodiment of the present utility model is provided, including orifice plate and body.Body possesses two ends
The runner of open and internal run-through, when using critical speed flowmeters, can by the orifice plate installation through-hole on body by orifice plate
Releasably in insertion runner, when needing to change orifice plate, it is only necessary to take out orifice plate replacing.Without as in the prior art, more
Pipeline is removed when changing orifice plate, also instrument case installed above is taken off, will also take out hole from two ends opening conduits
Plate, so easily causes pipeline to loosen, and causes leakage and complex operation increases labour intensity.By comparison, it is of the present utility model
Embodiment provide critical speed flowmeters, change orifice plate when it is simple to operate and be difficult leakage.
In one embodiment of the present utility model：
The outer surface of above-mentioned body possesses the sealing surface around orifice plate installation through-hole, and orifice plate possesses and has sealing plate, sealing plate
It is in sealing contact with sealing surface.
In one embodiment of the present utility model：
Above-mentioned sealing surface is located at phase in two relative limiting sections of the formation outwardly in the radial direction of body, sealing plate
To two limiting sections between.
In one embodiment of the present utility model：
Sliding groove is provided with above-mentioned two limiting section surface close to each other, critical speed flowmeters also include fastening
Plate and fastening bolt.The both sides of fastening plates are slidably inserted into sliding groove, and sealing plate is located between fastening plates and sealing surface, tightly
Fixing bolt is threadedly coupled through fastening plates and with sealing plate.
In one embodiment of the present utility model：
The inner peripheral surface of above-mentioned runner is provided with holding tank, the outer peripheral face of orifice plate sets abacus snap ring, and orifice plate snap ring is embedding
Enter in holding tank.
In one embodiment of the present utility model：
The seal in sealing contact with the wall of holding tank is provided with above-mentioned orifice plate snap ring.
In one embodiment of the present utility model：
Above-mentioned seal is sealing ring.
In one embodiment of the present utility model：
The two ends in runner direction are provided with adpting flange in above-mentioned body.
In one embodiment of the present utility model：
The structure that above-mentioned body is formed in one.
A kind of pipe-line system, including pipeline and above-mentioned critical speed flowmeters, critical speed flowmeters are arranged on pipe
On road, first interface connection first pressure table, second interface connection second pressure table.
The beneficial effect of the utility model embodiment is：
The critical speed flowmeters that embodiment of the present utility model is provided, including orifice plate and body.Body possesses two ends
The runner of open and internal run-through, when using critical speed flowmeters, can by the orifice plate installation through-hole on body by orifice plate
Releasably in insertion runner, when needing to change orifice plate, it is only necessary to take out orifice plate replacing.Without as in the prior art, more
Pipeline is removed when changing orifice plate, also instrument case installed above is taken off, will also take out hole from two ends opening conduits
Plate, so easily causes pipeline to loosen, and causes leakage and complex operation increases labour intensity.By comparison, it is of the present utility model
Embodiment provide critical speed flowmeters, change orifice plate when it is simple to operate and be difficult leakage.
The pipe-line system that the utility model is provided, including above-mentioned critical speed flowmeters, therefore also have in replacing hole
It is simple to operate during plate, antileakaging beneficial effect.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to be used needed for embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
Other related accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the overall structure diagram of the critical speed flowmeters that the utility model embodiment 1 is provided；
Fig. 2 is the body and the structural representation of flange of the critical speed flowmeters that the utility model embodiment 1 is provided；
Fig. 3 is the III-III of Fig. 2 to sectional view；
Fig. 4 is the structural representation of the orifice plate of the critical speed flowmeters that the utility model embodiment 1 is provided；
Fig. 5 is the fastening plates and the structure of fastening bolt of the critical speed flowmeters that the utility model embodiment 1 is provided
Schematic diagram.
Icon：10- critical speed flowmeters；100- bodies；110- fixed columns；120- communicating pipes；130- runners；132-
One runner；134- second flow channels；140- orifice plate installation through-holes；142- holding tanks；150- sealing surfaces；160- limiting sections；162- is slided
Dynamic groove；170- boss；172- first interfaces；174- second interfaces；180- supporting plates；200- orifice plates；210- orifice plate cores；212- holes
Board ring；214- sealing rings；220- sealing plates；230- suspension ring；300- fastening plates；The plates of 310- first；The plates of 320- second；
400- fastening bolts；500- flanges.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and
The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, if occur term " on ", D score, " interior ", " outward " etc. indicate
Orientation or position relationship be that, based on orientation shown in the drawings or position relationship, or the utility model product is usual when using
The orientation or position relationship put, are for only for ease of and describe the utility model and simplify to describe, rather than instruction or hint institute
The device or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality
With new limitation.If being described additionally, occurring term " first ", " second " etc. in description of the present utility model and being only used for distinguishing,
And it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, if there is art
Language " setting ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or detachably
Connection, or be integrally connected；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion.For the ordinary skill in the art, can understand above-mentioned term in the utility model with concrete condition
Concrete meaning.
Embodiment 1：
Fig. 1 is refer to, Fig. 1 is that the overall structure of the critical speed flowmeters 10 that the utility model embodiment 1 is provided is illustrated
Figure.As can be seen from Figure 1 body 100 is wholely set, and orifice plate 200 is attached in body 100, and fastening plates 300 connect with orifice plate 200
Connect on body 100, fastening bolt 400 is arranged in fastening plates 300, flange 500 is installed at the two ends of body 100.
It can further be seen from figure 1 that the one end of orifice plate 200 is undertaken in the supporting plate 180 of the outwardly convex of body 100, with the phase of supporting plate 180
The one end connected away from orifice plate 200 is provided with boss 170, and first interface 172 and second interface are provided with boss 170
174.It should be noted that body 100 is integrated and is disposed to so that critical speed in the embodiment 1 that the utility model is provided
Degree flowmeter 10 is more stablized, and strengthens the sealing of its own.It should be understood that in other specific embodiments, it is also possible to root
According to the demand of user, body 100 is not configured to be integrally formed, it is also possible to realize by other means, such as by multiple parts
It is connected through a screw thread or welds together.It should be noted that setting fastening plates in the embodiment 1 that the utility model is provided
300 and fastening bolt 400 be to improve the sealing property that orifice plate 200 is connected with body 100.It should be understood that at other
In specific embodiment, it is also possible to according to the demand of user, it is not provided with fastening plates 300 and fastening bolt 400 or other is set
The seal of form.It should be noted that it is to realize facing that flange 500 is set in the embodiment 1 that the utility model is provided
Boundary's velocity flow meters 10 are fixedly connected with outer tube.It should be understood that in other specific embodiments, it is also possible to according to
The demand at family, is not provided with flange 500, or set the company that other connectors realize critical speed flowmeters 10 and outer tube
Connect, for example threaded connection or clamping.Also, it should be noted that setting supporting plate in the embodiment 1 that the utility model is provided
180 is to ensure the positional stability of orifice plate 200.It should be understood that in other specific embodiments, it is also possible to according to user
Demand, be not provided with supporting plate 180.
Fig. 2 is the body 100 and the knot of flange 500 of the critical speed flowmeters 10 that the utility model embodiment 1 is provided
Structure schematic diagram, Fig. 3 is the III-III of Fig. 2 to sectional view.Refer to Fig. 2 and combine Fig. 3, body 100 is integrally formed, body 100
Including fixed column 110 and the communicating pipe 120 through fixed column 110, communicating pipe 120 both ends open and internal connection forms runner
130.In the orifice plate installation through-hole 140 for offering connection runner 130 in the radial direction of body 100, formed in runner 130
The holding tank 142 being connected with orifice plate installation through-hole 140 is provided with side face.The both sides of orifice plate installation through-hole 140 are respectively first
Runner 132 and second flow channel 134.Possess around orifice plate installation through-hole 140 in the outer surface of the fixed column 110 of body 100
Sealing surface 150, sealing surface 150 forms two relative limiting sections 160 in the outwardly in the radial direction of body 100, two
Individual limiting section 160 is provided with sliding groove 162 on surface close to each other.In the radial direction of the upper communicating pipe 120 of fixed column 110
On be provided with boss 170 (figure 1 illustrates), first interface 172 and second interface 174, first are provided with boss 170
Interface 172 is connected positioned at the both sides of orifice plate installation through-hole 140 and with runner 130 respectively with second interface 174.Boss 170 with
The supporting plate 180 of outwardly convex is provided between sliding groove 162.Flange is arranged with the communicating pipe 120 at the two ends of fixed column 110
500, flange 500 is used to connect pipe 120 and outer tube.
Fig. 4 is the structural representation of the orifice plate 200 of the critical speed flowmeters 10 that the utility model embodiment 1 is provided, hole
Plate 200 includes orifice plate core 210, and orifice plate core 210 is discoid, and abacus snap ring 212 is arranged in the outer peripheral face of orifice plate core 210,
Sealing ring 214 is provided with orifice plate snap ring 212.Sealing plate 220, sealing plate 220 and orifice plate are connected with orifice plate snap ring 212
Snap ring 212 is connected by suspension ring 230.It should be noted that the utility model provide embodiment 1 in providing holes board ring
212 is to realize being stably connected with for orifice plate 200 and body 100, it is possible to understand that, in other specific embodiments, it is also possible to
According to the demand of user, orifice plate snap ring 212 is not provided with.Also, it should be noted that being set in the embodiment 1 that the utility model is provided
It is to improve the sealing property of critical speed flowmeters 10 to put sealing plate 220, it is possible to understand that, in other specific embodiments
In, it is also possible to according to the demand of user, it is not provided with sealing plate 220 or the seal of other forms is set.
Fig. 5 is the fastening plates 300 and fastening bolt of the critical speed flowmeters 10 that the utility model embodiment 1 is provided
400 structural representation, fastening bolt 400 is threadedly coupled through fastening plates 300 with the sealing plate 220 of orifice plate 200.Fastening plates
300 possess the first plate 310 and the second plate 320, and the first plate 310 is connected with the second plate 320, the first plate 310
Width of the width less than the second plate 320.Fastening bolt 400 sequentially passes through the first plate 310 and the second plate 320 and orifice plate
200 sealing plate 220 is connected.It should be noted that by setting fastening bolt in the embodiment 1 that the utility model is provided
400 realize being fixedly connected for fastening plates 300 and the sealing plate 220 of orifice plate 200, it is possible to understand that, in other specific embodiments
In, it is also possible to according to the demand of user, fastening bolt 400 is not provided with, fastening plates are realized by setting the forms such as position limiting structure
300 are fixedly connected with the sealing plate 220 of orifice plate 200, or are achieved a fixed connection by setting other connectors.
Referring once again to Fig. 1, in use, the orifice plate installation through-hole 140 that orifice plate 200 is passed through on body 100 can
Releasably in insertion runner 130 (figure 3 illustrates), first flow 132 and second flow channel 134 are positioned at the both sides of orifice plate 200.
The orifice plate snap ring 212 (figure 4 illustrates) of orifice plate 200 is embedded into the holding tank 142 (figure 3 illustrates) of body 100, in hole
The sealing ring 214 in sealing contact with the wall of holding tank 142 is provided with board ring 212.First interface 172 on body 100
It is connected with first flow 132, second interface 174 is connected with second flow channel 134.The sealing plate 220 of orifice plate 200 is connected to this
The sealing surface 150 of body 100 realizes that both is in sealing contact.After installing orifice plate 200, by fastening plates 300 along body 100
The bearing of trend insertion of sliding groove 162 (figure 3 illustrates), makes the upper end of fastening plates 300 be connected to limiting section 160, and lower end abuts
In sealing plate 220.Now, fastening bolt 400 is threadedly coupled through the sealing plate 220 that fastening plates 300 are connected to orifice plate 200,
Realize the excellent sealing of orifice plate 200 and body 100.Then, pressure is connected respectively with second interface 174 in first interface 172
Table.Finally, the communicating pipe 120 at the two ends of body 100 is connected by flange 500 with outer tube so that outer tube and runner
130 connections.When the orifice plate 200 in critical speed flowmeters 10 is changed, it is only necessary to lay down fastening bolt 400, taken out along sliding groove 162
Go out fastening plates 300, take out orifice plate 200 and change.The critical speed flowmeters 10 that embodiment of the present utility model 1 is provided have
Simple to operate, the antileakaging beneficial effect when orifice plate 200 is changed, solves flowmeter of the prior art and is changing orifice plate
When labour intensity is big and problem of easily leakage.It should be noted that in orifice plate snap ring in the embodiment 1 that the utility model is provided
It is the inner surface for ensureing orifice plate 200 and body 100 that the sealing ring 214 in sealing contact with the wall of holding tank 142 is provided with 212
Good sealing, it is possible to understand that, in other specific embodiments, it is also possible to according to the demand of user, be not provided with sealing
Circle 214, or other sealing structures are set realize sealing.Also, it should be noted that the implementation provided in the utility model
In example 1, the sliding groove 162 and limiting section 160 that placement fastening plates 300 are set on body 100 are to ensure fastening plates 300
The stability of position, it is possible to understand that, in other specific embodiments, it is also possible to according to the demand of user, be not provided with sliding groove
162 and limiting section 160.
In the embodiment 1 that the utility model is provided, a kind of pipe-line system is additionally provided, the pipe-line system includes above-mentioned
Critical speed flowmeters 10, critical speed flowmeters 10 are arranged on pipeline；First interface 172 connects first pressure table；Second
Interface 174 connects second pressure table.Because the pipe-line system includes above-mentioned critical speed flowmeters 10, therefore also have more
Change simple to operate during orifice plate 200, antileakaging beneficial effect.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of critical speed flowmeters, it is characterised in that：
The critical speed flowmeters include orifice plate and body；
The body possesses the runner of both ends open and internal run-through；In offering in the radial direction described in connection for the body
The orifice plate installation through-hole of runner；
The orifice plate is removably inserted into the runner by the orifice plate installation through-hole, and the runner is divided into first
Runner and second flow channel；
The first interface for connecting the first flow is provided with the body, and connects the second of the second flow channel connect
Mouthful.
2. critical speed flowmeters according to claim 1, it is characterised in that：
The outer surface of the body possesses the sealing surface around the orifice plate installation through-hole；
The orifice plate possesses and has sealing plate；The sealing plate is in sealing contact with the sealing surface.
3. critical speed flowmeters according to claim 2, it is characterised in that：
The sealing surface is in two relative limiting sections of the formation outwardly in the radial direction of the body；The sealing plate position
Between two relative limiting sections.
4. critical speed flowmeters according to claim 3, it is characterised in that：
Two limiting sections are provided with sliding groove on surface close to each other；
The critical speed flowmeters also include fastening plates and fastening bolt；The both sides of the fastening plates are slidably inserted into described
In sliding groove；The sealing plate is located between the fastening plates and the sealing surface；The fastening bolt runs through the fastening plates
And be threadedly coupled with the sealing plate.
5. critical speed flowmeters according to claim 1, it is characterised in that：
The inner peripheral surface of the runner is provided with holding tank；
The outer peripheral face of the orifice plate sets abacus snap ring；The orifice plate snap ring is embedded in the holding tank.
6. critical speed flowmeters according to claim 5, it is characterised in that：
The seal in sealing contact with the wall of the holding tank is provided with the orifice plate snap ring.
7. critical speed flowmeters according to claim 6, it is characterised in that：
The seal is sealing ring.
8. critical speed flowmeters according to claim 1, it is characterised in that：
The two ends in the runner direction are provided with adpting flange in the body.
9. critical speed flowmeters according to claim 1 to 8 any one, it is characterised in that：
The structure that the body is formed in one.
10. a kind of pipe-line system, it is characterised in that：
Including the critical speed flowmeters described in any one in pipeline and claim 1-9；The critical speed flowmeters
It is arranged on the pipeline；The first interface connects first pressure table；The second interface connects second pressure table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462905.1U CN206281538U (en) | 2016-12-29 | 2016-12-29 | A kind of critical speed flowmeters and pipe-line system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621462905.1U CN206281538U (en) | 2016-12-29 | 2016-12-29 | A kind of critical speed flowmeters and pipe-line system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206281538U true CN206281538U (en) | 2017-06-27 |
Family
ID=59071237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621462905.1U Expired - Fee Related CN206281538U (en) | 2016-12-29 | 2016-12-29 | A kind of critical speed flowmeters and pipe-line system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206281538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595789A (en) * | 2016-12-29 | 2017-04-26 | 广汉川亿石油科技有限公司 | Critical speed flowmeter and pipeline system |
-
2016
- 2016-12-29 CN CN201621462905.1U patent/CN206281538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595789A (en) * | 2016-12-29 | 2017-04-26 | 广汉川亿石油科技有限公司 | Critical speed flowmeter and pipeline system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 Termination date: 20181229 |