CN209470737U - A kind of device of online sweeping flowmeter pressure sampling tube - Google Patents
A kind of device of online sweeping flowmeter pressure sampling tube Download PDFInfo
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- CN209470737U CN209470737U CN201920088673.5U CN201920088673U CN209470737U CN 209470737 U CN209470737 U CN 209470737U CN 201920088673 U CN201920088673 U CN 201920088673U CN 209470737 U CN209470737 U CN 209470737U
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Abstract
The utility model discloses a kind of devices of online sweeping flowmeter pressure sampling tube, including three valve groups, solenoid valve, differential pressure pipe, anti-blowpipe, sleeve, flange seat, tube body, pressure pipe, pedestal, sealing-plug and spring, the high pressure valve and low pressure valve of three valve groups are respectively communicated with a solenoid valve, the top interface of solenoid valve connects differential pressure transmitter solenoid valve by differential pressure pipe, the interface in outside is connected to high-pressure pump by anti-blowpipe, respectively correspond measurement and blowback cleaning, cooperated by sealing-plug and spring, when sealing-plug screws, pressure port on inner and outer tubes side wall is overlapped, the blocking at pressure port can be removed by anti-blowpipe, when sealing-plug screws out, the impurity blocked in pressure tube cavity can be removed by anti-blowpipe, prevent excessive can not be successfully of impurity volume from blowing out from pressure port, reduce cleaning difficulty, and it does not influence to manage Intracorporal fluid flowing, being capable of on-line operation.
Description
Technical field
The utility model relates to a kind of flow detection technical field, specifically a kind of online purging Verabar pressure
The device of pipe.
Background technique
Verabar is differential pressure type flow meter, has the reliable structure without movable member, compared with orifice plate, tool
There is the online installation that do not stop production, the clear superiorities such as crushing is small, longtime running precision is high, stability is good, operating cost is low, particularly with
Large Diameter Pipeline advantage is particularly evident, it is suitable for the measurement of various gases, liquid, steam flow.Existing Verabar mainly has
Pressure difference transmitter, three groups of valves and pressure pipe composition, pressure pipe are equipped with the pressure pipe of positive pressure pressure port and negative pressure pressure port.It is this
Verabar has been widely used in the measurement of metallurgy industry gas flow, but due to aqueous in coal gas and dustiness compared with
Height, dirt, aqueous mixtures are easily sticked on " Verabar " pressure tube wall, are caused positive and negative pressure port partly or entirely to block, are caused to survey
Measure misalignment.It need to clean within average more than 20 days when coal gas is dirtier primary.Common solution is exactly: removing a table, extracts " power out
Bar " probe, pressure port is cleared up with steam or nitrogen, is purged, is then reloaded into and reruns: 2 people of entire cleaning process
About need 2 hours.Verabar dirty coal gas (coal gas of converter, blast furnace, mixed gas) measurement in it is easy block, higher-dimension
The problems such as shield amount, has seriously affected the instantaneity of continuous data, accuracy.
Utility model content
The purpose of this utility model is to provide a kind of devices of online sweeping flowmeter pressure sampling tube, on solving
State the problem of proposing in background technique.
To achieve the above object, the utility model provides the following technical solutions:
A kind of device of online sweeping flowmeter pressure sampling tube, including three valve groups, solenoid valve, differential pressure pipe, anti-blowpipe,
Sleeve, flange seat, tube body, pressure pipe, pedestal, sealing-plug and spring, three valve group, sleeve and pressure pipe constitute Verabar
The pressure obtaning device of flowmeter, the section of the pressure pipe are bullet-headed monolithic double cavity structure, are symmetrically arranged with two pairs on pressure pipe
Pressure port, pressure pressure port is located at the left side of pressure pipe, towards flow direction, both sides after low pressure pressure port is located on the right side of pressure pipe,
Between fluid and pressure pipe burble point, believe far from stable differential pressure is generated between vortex surge area, with high pressure pressure port
Number, and it is effectively anti-blocking, but contained a large amount of impurities when in medium, blocking-proof result weakens, and when pipeline is in end-of-life state
When with frequently switching on machine, little particle impurity is still able into the inner cavity of pressure pipe, leads to pressure blockage, pressure pipe top
With sleeve connection, flowmeter is fixed on tube body by sleeve and flange seat cooperation；
Symmetrical position is respectively equipped with flange seat and pedestal on the side wall of the tube body, for fixing the both ends of pressure pipe,
Three valve group has high pressure valve, low pressure valve and balance valve group at high pressure valve and low pressure valve are respectively communicated with a solenoid valve, the electricity
Magnet valve is two-position three way magnetic valve, and top interface connects differential pressure transmitter by differential pressure pipe, and the interface in outside is connected by anti-blowpipe
Logical high-pressure pump, the connection of working state control differential pressure transmitter and high-pressure pump and pressure pipe by controlling solenoid valve, point
It Dui Ying not measure and blowback is cleared up；
The pressure pipe is made of inner and outer tubes inner tube, the bottom end opening of inner and outer tubes, and the section of inner tube is bullet
The cavity of the cavity tube body of type, inner tube is separated into high pressure chest and low pressure chamber by partition, passes through the height of sleeve and three valve groups respectively
Pressure valve is connected to low pressure valve, and in the bottom end inserted base of inner tube, the pedestal is the cylindrical structure that bottom surface is equipped with circular through hole,
Circular through hole runs through the side wall of tube body, and the inner wall bottom end of circular through hole is equipped with external screw thread, by cooperating with sealing-plug by pressure pipe
Bottom end seal, outer tube is the thin-walled pipe structure for being socketed in outer wall of inner tube, and outer tube can slide on the outer wall of inner tube, outer tube
Top be fixedly connected with spring, the top of spring is contacted with the bottom surface of sleeve, is cooperated by sealing-plug and spring, is worked as sealing-plug
When screwing, the pressure port on inner and outer tubes side wall is overlapped, and the blocking at pressure port can be removed by anti-blowpipe, works as sealing-plug
When back-out, the impurity blocked in pressure tube cavity can be removed by anti-blowpipe, and not influence to manage intracorporal fluid flowing, energy
Enough on-line operations.
As a further solution of the present invention: being plated with polytetrafluoro in the inner cavity of the inner and outer tubes of the pressure pipe
Vinyl coating, for improve degree of lubrication facilitate outer tube slide and prevent the impurity in inner tube to be bonded in inner wall, can not above go
It removes.
The top surface of the sealing-plug is equipped with rubber pad as a further solution of the present invention, so that sealing effect
More preferably.
Compared with prior art, the utility model has the beneficial effects that the high pressure valve and low pressure valve of three valve groups are respectively communicated with
The top interface of one solenoid valve, solenoid valve connects differential pressure transmitter solenoid valve by differential pressure pipe, for normally measuring work,
The interface in outside is connected to high-pressure pump by anti-blowpipe, by the working state control differential pressure transmitter and high pressure that control solenoid valve
The connection of air pump and pressure pipe, respectively corresponding measurement and blowback cleaning outer tube can slide on the outer wall of inner tube, the top of outer tube
End is fixedly connected with spring, and the top of spring is contacted with the bottom surface of sleeve, is cooperated by sealing-plug and spring, when sealing-plug screws
When, the pressure port on inner and outer tubes side wall is overlapped, and the blocking at pressure port can be removed by anti-blowpipe, when sealing-plug screws out
When, the impurity blocked in pressure tube cavity can be removed by anti-blowpipe, prevent impurity volume is excessive to can not be successfully from pressure port
Middle blowout reduces cleaning difficulty, and does not influence to manage intracorporal fluid flowing, being capable of on-line operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the device of online sweeping flowmeter pressure sampling tube.
Fig. 2 is the structural schematic diagram of pressure tube section in the device of online sweeping flowmeter pressure sampling tube.
In figure: three valve groups 1, solenoid valve 2, differential pressure pipe 3, anti-blowpipe 4, sleeve 5, flange seat 6, tube body 7, pressure pipe 8, pedestal
9, sealing-plug 10, spring 11, inner tube 81, outer tube 82, high pressure chest 83, low pressure chamber 84.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~2, in the utility model embodiment, a kind of device of online sweeping flowmeter pressure sampling tube,
Including three valve groups 1, solenoid valve 2, differential pressure pipe 3, anti-blowpipe 4, sleeve 5, flange seat 6, tube body 7, pressure pipe 8, pedestal 9, sealing-plug
10 and spring 11, three valve group 1, sleeve 5 and pressure pipe 8 constitute the pressure obtaning device of Verabar, the pressure pipe 8
Section be bullet-headed monolithic double cavity structure, two pairs of pressure ports are symmetrically arranged on pressure pipe 8, pressure pressure port is located at pressure pipe 8
Left side, towards flow direction, low pressure pressure port is located at both sides behind the right side of pressure pipe 8, be located at fluid and 8 burble point of pressure pipe it
Between, stable differential pressure signal is generated far from being vortexed between surge area, with high pressure pressure port, and effectively anti-blocking, but as Jie
It is contained a large amount of impurities in matter, blocking-proof result weakens, and when pipeline is in end-of-life state and frequently switches on machine, little particle impurity
It is still able into the inner cavity of pressure pipe 8, pressure pipe 8 is caused to block, 8 top of pressure pipe is connect with sleeve 5, passes through sleeve 5
Cooperate with flange seat 6 and flowmeter is fixed on tube body 7；
Symmetrical position is respectively equipped with flange seat 6 and pedestal 9 on the side wall of the tube body 7, for fixing the two of pressure pipe 8
End, three valve group 1 have high pressure valve, low pressure valve and balance valve group at, high pressure valve and low pressure valve are respectively communicated with a solenoid valve 2,
The solenoid valve 2 is two-position three way magnetic valve, and top interface connects differential pressure transmitter by differential pressure pipe 3, and the interface in outside passes through
Anti-blowpipe 4 is connected to high-pressure pump, passes through the working state control differential pressure transmitter and high-pressure pump and pressure pipe of control solenoid valve 2
8 connection respectively corresponds measurement and blowback cleaning；
The pressure pipe 8 is made of inner tube 81 and 82 inner tube of outer tube, the bottom end opening of inner tube 81 and outer tube 82, inner tube 81
Section is the cavity tube body of bullet type, and the cavity of inner tube 81 is separated into high pressure chest 83 and low pressure chamber 84 by partition, passes through respectively
Sleeve 5 is connected to the high pressure valve of three valve groups 1 with low pressure valve, and in the bottom end inserted base 9 of inner tube 81, the pedestal 9 sets for bottom surface
There is the cylindrical structure of circular through hole, circular through hole runs through the side wall of tube body 7, and the inner wall bottom end of circular through hole is equipped with external screw thread,
By cooperating with sealing-plug 10 by the bottom end seal of pressure pipe 8, outer tube 82 is the thin-walled pipe structure for being socketed in 81 outer wall of inner tube,
Outer tube 82 can slide on the outer wall of inner tube 81, and the top of outer tube 82 is fixedly connected with spring 11, the top of spring 11 and set
The bottom surface contact of cylinder 5, is cooperated by sealing-plug 10 and spring 11, when sealing-plug 10 screws, on 82 side wall of inner tube 81 and outer tube
Pressure port be overlapped, can by anti-blowpipe 4 remove pressure port at blocking, when sealing-plug 10 screw out when, blowback can be passed through
Pipe 4 removes the impurity blocked in 8 inner cavity of pressure pipe, and does not influence the flowing of the fluid in tube body 7, being capable of on-line operation；
Polytetrafluorethylecoatings coatings are plated in the inner tube 81 of the pressure pipe 8 and the inner cavity of outer tube 82, for improving lubrication
Degree facilitates outer tube 82 to slide and the impurity in inner tube 81 is prevented to be bonded on inner wall, not can be removed above；
The top surface of the sealing-plug 10 is equipped with rubber pad, so that sealing effect is more preferable.
The working principle of the utility model is: the high pressure valve and low pressure valve of three valve groups 1 are respectively communicated with a solenoid valve 2, electricity
The top interface of magnet valve 2 connects differential pressure transmitter solenoid valve 2 by differential pressure pipe 3, for normally measuring work, the interface in outside
By anti-blowpipe 4 be connected to high-pressure pump, by control solenoid valve 2 working state control differential pressure transmitter and high-pressure pump with take
The connection of pressure pipe 8, respectively corresponding measurement and blowback cleaning outer tube 82 can slide on the outer wall of inner tube 81, the top of outer tube 82
It is fixedly connected with spring 11, the top of spring 11 is contacted with the bottom surface of sleeve 5, is cooperated by sealing-plug 10 and spring 11, when close
When blocking 10 screws, the pressure port on 82 side wall of inner tube 81 and outer tube is overlapped, and can be removed by anti-blowpipe 4 stifled at pressure port
Plug can remove the impurity blocked in 8 inner cavity of pressure pipe by anti-blowpipe 4, and do not influence tube body when sealing-plug 10 screws out
Fluid flowing in 7, being capable of on-line operation.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into
Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all
It is included within the scope of protection of this utility model.
Claims (3)
1. a kind of device of online sweeping flowmeter pressure sampling tube, including three valve groups, solenoid valve, differential pressure pipe, anti-blowpipe, set
Cylinder, flange seat, tube body, pressure pipe, pedestal, sealing-plug and spring, three valve group, sleeve and pressure pipe constitute Verabar stream
The pressure obtaning device of meter, the section of the pressure pipe are bullet-headed monolithic double cavity structure, are symmetrically arranged with two pairs on pressure pipe and take
Hole is pressed, pressure pressure port is located at the left side of pressure pipe, towards flow direction, both sides after low pressure pressure port is located on the right side of pressure pipe, position
Between fluid and pressure pipe burble point, pressure pipe top and sleeve connection are consolidated flowmeter by sleeve and flange seat cooperation
It is scheduled on tube body, it is characterised in that；
Symmetrical position is respectively equipped with flange seat and pedestal on the side wall of the tube body, described for fixing the both ends of pressure pipe
Three valve groups have high pressure valve, low pressure valve and balance valve group at high pressure valve and low pressure valve are respectively communicated with a solenoid valve, the solenoid valve
For two-position three way magnetic valve, top interface connects differential pressure transmitter by differential pressure pipe, and the interface in outside is connected to high by anti-blowpipe
Compression pump；
The pressure pipe is made of inner and outer tubes inner tube, the bottom end opening of inner and outer tubes, and the section of inner tube is bullet type
The cavity of cavity tube body, inner tube is separated into high pressure chest and low pressure chamber by partition, passes through the high pressure valve of sleeve and three valve groups respectively
It is connected to low pressure valve, in the bottom end inserted base of inner tube, the pedestal is the cylindrical structure that bottom surface is equipped with circular through hole, round
Through-hole runs through the side wall of tube body, and the inner wall bottom end of circular through hole is equipped with external screw thread, by cooperating with sealing-plug by the bottom of pressure pipe
End sealing, outer tube is the thin-walled pipe structure for being socketed in outer wall of inner tube, and outer tube can slide on the outer wall of inner tube, the top of outer tube
End is fixedly connected with spring, and the top of spring is contacted with the bottom surface of sleeve.
2. the device of online sweeping flowmeter pressure sampling tube according to claim 1, which is characterized in that the pressure
Polytetrafluorethylecoatings coatings are plated in the inner cavity of the inner and outer tubes of pipe.
3. the device of online sweeping flowmeter pressure sampling tube according to claim 1, which is characterized in that the sealing
The top surface of plug is equipped with rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088673.5U CN209470737U (en) | 2019-01-17 | 2019-01-17 | A kind of device of online sweeping flowmeter pressure sampling tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088673.5U CN209470737U (en) | 2019-01-17 | 2019-01-17 | A kind of device of online sweeping flowmeter pressure sampling tube |
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| Publication Number | Publication Date |
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| CN209470737U true CN209470737U (en) | 2019-10-08 |
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ID=68092292
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920088673.5U Active CN209470737U (en) | 2019-01-17 | 2019-01-17 | A kind of device of online sweeping flowmeter pressure sampling tube |
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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 |
-
2019
- 2019-01-17 CN CN201920088673.5U patent/CN209470737U/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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