CN208296909U - A kind of Venturi tube - Google Patents
A kind of Venturi tube Download PDFInfo
- Publication number
- CN208296909U CN208296909U CN201820990568.6U CN201820990568U CN208296909U CN 208296909 U CN208296909 U CN 208296909U CN 201820990568 U CN201820990568 U CN 201820990568U CN 208296909 U CN208296909 U CN 208296909U
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- venturi tube
- pressure pipe
- flange
- limiting section
- connecting tube
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Abstract
The utility model belongs to fluid measurement technical field, specifically discloses a kind of Venturi tube.The Venturi tube includes pressure pipe, connecting tube and Venturi tube ontology, and connecting tube is detachably in pressure pipe.The inside of pressure pipe is protruded into one end of Venturi tube ontology, and the other end protrudes into the inside of connecting tube, and limiting section is provided in the middle part of Venturi tube ontology, and the two sides of limiting section press on pressure pipe and connecting tube respectively.The Venturi tube is time saving and energy saving without removing pressure pipe and connecting tube simultaneously, reduces the task difficulty of operator.Meanwhile Venturi tube ontology can be timely and conveniently replaced, it is convenient for later maintenance.In addition, the pressure pipe and connecting tube for not going wrong can also reuse after having replaced Venturi tube ontology, increase recycling rate of waterused, thereby reduce production cost.
Description
Technical field
The utility model relates to fluid measurement technical field more particularly to a kind of Venturi tubes.
Background technique
Although maximum occupation rate of market is still differential pressure flowmeter currently, flow instrument is many kinds of, and
Differential pressure flowmeter have passed through the nonstandard section that century-old development has gradually formed conventional throttle device and each producer's independent development
Flow device.Wherein Venturi tube can measure piping flow, play measurement fluid as a kind of special differential pressure flowmeter
The effect of flow.Since Venturi tube can be controlled and be measured to Large Diameter Pipeline fluid, so that Venturi tube is widely used in
Among the industries such as petroleum, chemical industry, metallurgy and electric power.
The longer dimension of existing Venturi tube, in-site installation is time-consuming and laborious, increases the task difficulty of operator, raw
It is lower to produce efficiency.Simultaneously as Venturi tube is an integral molding structure, needed after Venturi tube abrasion and failure to entire dress
Carry out integral replacing is set, is not easy to safeguard, and recycling rate of waterused is lower.
Utility model content
The purpose of this utility model is to provide a kind of Venturi tube, when occurring wearing or after failure, can facilitate in time
Replacement, it is convenient for safeguarding.
For this purpose, the utility model uses following technical scheme:
A kind of Venturi tube includes: pressure pipe；Connecting tube, the connecting tube are removably connected to the pressure pipe；Literary mound
In tube body, one end of the Venturi tube ontology protrudes into the inside of the pressure pipe, and the other end protrudes into the interior of the connecting tube
Portion, is provided with limiting section in the middle part of the Venturi tube ontology, the two sides of the limiting section press on respectively the pressure pipe and
The connecting tube.
Preferably, be provided with first flange on the pressure pipe, it is provided with second flange in the connecting tube, described
One flange and the second flange are detachably connected, and the two sides of the limiting section press on the first flange and described respectively
Two flanges.
Preferably, being provided with the first sealing ring between the limiting section and the first flange.
Preferably, being provided with the second sealing ring between the limiting section and the second flange.
Preferably, the limiting section is annular convex platform.
Preferably, the internal diameter of the first flange and the internal diameter of the second flange are respectively less than the outer of the limiting section
The outer diameter of diameter, the outer diameter of the first flange and the second flange is all larger than the outer diameter of the limiting section.Preferably, described
Pressure port is installed on pressure pipe and the limiting section.
Preferably, the Venturi tube ontology include be set to contraction flow region inside the pressure pipe, be set to it is described
Diffusion part inside connecting tube and the throat portion being set between the contraction flow region and the diffusion part, it is the contraction flow region, described
Diffusion part and the throat portion are connected with each other logical, and the limiting section is set to the middle part of the throat portion.
Preferably, the contraction flow region, the diffusion part are hollow conical structure, the throat portion is hollow circle
Column construction.
Preferably, the pressure pipe and the connecting tube are hollow cylindrical structure.
The utility model has the beneficial effects that
1) inside of pressure pipe, the inside of other end connecting tube, and connecting tube are protruded by one end of Venturi tube ontology
It is removably connected to pressure pipe by flange assembly, when occurring wearing or after failure, first by after pressure pipe and connecting tube separation, then
Venturi tube ontology is taken out from the inside of pressure pipe and connecting tube and is replaced, without tearing pressure pipe and connecting tube open simultaneously
It removes, it is time saving and energy saving, reduce the task difficulty of operator.
2) inside of pressure pipe is protruded by one end of Venturi tube ontology, the other end protrudes into the inside of connecting tube, avoids
Inconvenient situation caused by being an integral molding structure in the prior art due to Venturi tube, using pressure pipe, connection
Pipe and Venturi tube ontology segmented, the mode that is detachably connected, can replace Venturi tube ontology in time, tie up convenient for the later period
Shield.Meanwhile the pressure pipe for not going wrong and connecting tube can also repeat benefit after having replaced Venturi tube ontology
With increasing recycling rate of waterused, thereby reduce production cost.
3) due to that, there are the more common pipeline of quantity, can gather materials on the spot in construction site, it is made to directly serve as pressure
Pipe and connecting tube, improve the versatility and adaptability of Venturi tube.
4) limiting section being set at the middle part of Venturi tube ontology, the two sides of limiting section compress pressure pipe and connecting tube respectively,
Limiting section can limit Venturi tube ontology；When replacing Venturi tube ontology, moreover it is possible to hold limit convenient for operator
Position portion is easy to operate to install or take out Venturi tube ontology, easy to use.
5) Venturi tube provided by the utility model, not only Venturi tube ontology can be used as flowmeter and fluid flow
Measurement, and can also ensure that the voltage endurance of Venturi tube itself.
Detailed description of the invention
Fig. 1 is the perspective view of the explosion of the utility model Venturi tube；
Fig. 2 is the longitudinal sectional view of the utility model Venturi tube；
Fig. 3 is the structural schematic diagram of Venturi tube ontology in the utility model.
In figure:
1, pressure pipe；2, connecting tube；3, flange assembly；4, Venturi tube ontology；5, the first sealing ring；6, the second sealing
Circle；7, pressure port；
31, first flange；32, second flange；
41, limiting section；42, contraction flow region；43, diffusion part；44, throat portion.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
A kind of Venturi tube is present embodiments provided, as shown in Figure 1-3, the Venturi tube includes: pressure pipe 1, connecting tube 2
And Venturi tube ontology.Wherein connecting tube 2 is removably connected to pressure pipe 1, meanwhile, one end of Venturi tube ontology 4, which is protruded into, to be taken
The inside of pressure pipe 1, the other end protrudes into the inside of connecting tube 2, and the middle part of Venturi tube ontology 4 is provided with limiting section 41, limit
The two sides in portion 41 press on pressure pipe 1 and connecting tube 2 respectively.
The inside of pressure pipe 1 is protruded into one end by the way that Venturi tube ontology 4 is arranged, and the other end protrudes into the inside of connecting tube 2,
And connecting tube 2 is removably connected to pressure pipe 1, and when occurring wearing or after failure, after first pressure pipe 1 and connecting tube 2 are separated, then
Venturi tube ontology 4 is taken out from the inside of pressure pipe 1 and connecting tube 2 and is replaced, it is time saving and energy saving, reduce operator's
Task difficulty.
The inside of pressure pipe 1 is protruded into one end by the way that Venturi tube ontology 4 is arranged, and the other end protrudes into the inside of connecting tube 2,
Avoid situation inconvenient caused by being an integral molding structure in the prior art due to Venturi tube, using pressure pipe 1,
Connecting tube 2 and Venturi tube ontology 4 segmented, the mode that is detachably connected, can be convenient for changing Venturi tube ontology 4 in time,
Convenient for later maintenance.Meanwhile pressure pipe 1 and connecting tube 2 for not going wrong be after having replaced Venturi tube ontology 4,
It can also reuse, increase recycling rate of waterused, thereby reduce production cost.
Due to that, there are the more common pipeline of quantity, can gather materials on the spot in construction site, it is made to directly serve as pressure pipe 1
With connecting tube 2, the versatility and adaptability of Venturi tube are improved.
The middle part of Venturi tube ontology 4 is provided with limiting section 41, the two sides of limiting section 41 press on flange group respectively
Part 3, limiting section 41 can limit Venturi tube ontology 4, and when replacing Venturi tube ontology 4, operator passes through handle
Holding limiting section 41 can install Venturi tube ontology 4 or take out, easy to operate, easy to use.
Venturi tube provided by the utility model, not only Venturi tube ontology 4 can be used as flowmeter and fluid flow
Measurement, and can also ensure that the voltage endurance of Venturi tube itself.
As shown in Figs. 1-2, it is provided with first flange 31 on pressure pipe 1, is provided with second flange 32 in connecting tube 2, first
Flange 31 is removably connected to second flange 32, and first flange 31 and second flange 32 may be collectively referred to as flange assembly 3.Wherein
Pressure pipe 1 and connecting tube 2 are hollow cylindrical structure.Meanwhile first is provided between limiting section 41 and first flange 31
Sealing ring 5, and the second sealing ring 6 is provided between limiting section 41 and second flange 32, to guarantee Venturi tube ontology 4 and flange
Leakproofness between component 3.
As Figure 2-3, Venturi tube ontology 4 includes being set to contraction flow region 42 inside pressure pipe 1, being set to connecting tube
Diffusion part 43 inside 2, the throat portion 44 being set between contraction flow region 42 and diffusion part 43 and the middle part for being sheathed on throat portion 44
Limiting section 41, contraction flow region 42, diffusion part 43 and throat portion 44 are connected with each other logical.
Wherein throat portion 44 is hollow cylindrical structure, and contraction flow region 42, diffusion part 43 are hollow conical structure,
And the inner wall of the outer wall and pressure pipe 1 of the biggish one end of 42 medium caliber of contraction flow region fits, 43 medium caliber of diffusion part biggish one
The outer wall at end and the inner wall of connecting tube 2 fit.Meanwhile it being installed with pressure port 7 on pressure pipe 1 and limiting section 41, so that
Contraction flow region 42, diffusion part 43 and throat portion 44 can be sequentially entered into the fluid in pressure pipe 1, and is flowed out from connecting tube 2,
Realize the measurement of fluid flow.
Above-mentioned limiting section 41 is specially to be set to the annular convex platform of 44 outer wall of throat portion, in order to can be to Venturi tube ontology
4 are limited, and the outer diameter by the way that limiting section 41 is arranged is all larger than the internal diameter of first flange 31 and second flange 32, limiting section 41
Outer diameter is respectively less than the outer diameter of first flange 31 and second flange 32, to prevent Venturi tube ontology 4 to be axially moveable.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of Venturi tube characterized by comprising
Pressure pipe (1)；
Connecting tube (2), the connecting tube (2) are removably connected to the pressure pipe (1)；
The inside of the pressure pipe (1) is protruded into one end of Venturi tube ontology (4), the Venturi tube ontology (4), and the other end is stretched
Enter the inside of the connecting tube (2), is provided with limiting section (41), the limiting section in the middle part of the Venturi tube ontology (4)
(41) two sides press on the pressure pipe (1) and the connecting tube (2) respectively.
2. Venturi tube according to claim 1, which is characterized in that be provided with first flange on the pressure pipe (1)
(31), it is provided with second flange (32) on the connecting tube (2), the first flange (31) and the second flange (32) are removable
Connection is unloaded, the two sides of the limiting section (41) press on the first flange (31) and the second flange (32) respectively.
3. Venturi tube according to claim 2, which is characterized in that the limiting section (41) and the first flange (31)
Between be provided with the first sealing ring (5).
4. Venturi tube according to claim 2, which is characterized in that the limiting section (41) and the second flange (32)
Between be provided with the second sealing ring (6).
5. Venturi tube according to claim 2, which is characterized in that the limiting section (41) is annular convex platform.
6. Venturi tube according to claim 5, which is characterized in that the internal diameter and described second of the first flange (31)
The internal diameter of flange (32) is respectively less than the outer diameter of the limiting section (41), the outer diameter of the first flange (31) and the second flange
(32) outer diameter is all larger than the outer diameter of the limiting section (41).
7. Venturi tube according to claim 1, which is characterized in that on the pressure pipe (1) and the limiting section (41)
It is installed with pressure port (7).
8. Venturi tube according to claim 1, which is characterized in that the Venturi tube ontology (4) includes being set to institute
The internal contraction flow region (42) of pressure pipe (1) is stated, the internal diffusion part (43) of the connecting tube (2) is set to and is set to the receipts
Throat portion (44) between contracting portion (42) and the diffusion part (43), the contraction flow region (42), the diffusion part (43) and described
Throat portion (44) is connected with each other logical, and the limiting section (41) is sheathed on the middle part of the throat portion (44).
9. Venturi tube according to claim 8, which is characterized in that the contraction flow region (42) and the diffusion part (43) are equal
For hollow taper type structure, the throat portion (44) is hollow cylindrical structure.
10. Venturi tube according to claim 1, which is characterized in that the pressure pipe (1) and the connecting tube (2) are equal
For hollow cylindrical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820990568.6U CN208296909U (en) | 2018-06-26 | 2018-06-26 | A kind of Venturi tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820990568.6U CN208296909U (en) | 2018-06-26 | 2018-06-26 | A kind of Venturi tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208296909U true CN208296909U (en) | 2018-12-28 |
Family
ID=64701907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820990568.6U Active CN208296909U (en) | 2018-06-26 | 2018-06-26 | A kind of Venturi tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208296909U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177363A1 (en) * | 2019-03-05 | 2020-09-10 | 苏州方舟环保科技有限公司 | Efficient wastewater dissolved gas treatment device |
| CN114005556A (en) * | 2021-10-25 | 2022-02-01 | 山东核电设备制造有限公司 | Combined type current-limiting Venturi tube suitable for CVS and machining method thereof |
-
2018
- 2018-06-26 CN CN201820990568.6U patent/CN208296909U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177363A1 (en) * | 2019-03-05 | 2020-09-10 | 苏州方舟环保科技有限公司 | Efficient wastewater dissolved gas treatment device |
| CN114005556A (en) * | 2021-10-25 | 2022-02-01 | 山东核电设备制造有限公司 | Combined type current-limiting Venturi tube suitable for CVS and machining method thereof |
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