CN219416288U - Plug-in low flow rate flowmeter - Google Patents
Plug-in low flow rate flowmeter Download PDFInfo
- Publication number
- CN219416288U CN219416288U CN202320138418.3U CN202320138418U CN219416288U CN 219416288 U CN219416288 U CN 219416288U CN 202320138418 U CN202320138418 U CN 202320138418U CN 219416288 U CN219416288 U CN 219416288U
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- China
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- taking pipe
- pressure taking
- venturi
- negative pressure
- positive pressure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model discloses an inserted low-flow-rate flowmeter, which comprises a process pipeline, a fixing mechanism, an outer venturi, an inner venturi, a positive pressure taking pipe and a negative pressure taking pipe, wherein the inner venturi is arranged at the front end of the outer venturi, the inner venturi is communicated with the negative pressure taking pipe through a short joint of the negative pressure taking pipe, the positive pressure taking pipe is L-shaped, the positive pressure taking pipe and the negative pressure taking pipe are fixed in the process pipeline through the fixing mechanism, the inserted low-flow-rate flowmeter can be quickly installed and detached through the fixing mechanism, the practicability of the flowmeter is improved, the quick installation and detection of a certain process pipeline are facilitated, the negative pressure taking pipe is communicated with the inner venturi through the short joint of the negative pressure taking pipe, and meanwhile, the positive pressure taking pipe is positioned outside the outer venturi and the inner venturi, so that the positive pressure taking is synchronously carried out, and the flow detection of the inside of the process pipeline is realized.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to an inserted low-flow-rate flowmeter.
Background
In the existing pipeline flow detection, a flow detection system is added during pipeline construction. However, for old pipelines or partial pipelines which are not added into the detection system, if the pipeline needs to be detected in the later stage, a certain section of pipeline needs to be removed, and the flow detection system is rearranged, so that time and labor are wasted, and the reconstruction cost is increased.
Disclosure of Invention
In order to overcome the defects, the utility model provides an inserted low-flow-rate flowmeter.
The utility model realizes the above purpose through the following technical scheme:
the utility model provides an inserted low flow rate flowmeter, includes process line, fixed establishment, outer venturi, interior venturi, positive pressure tube and negative pressure tube, and interior venturi sets up in the front end of outer venturi, through negative pressure tube nipple joint intercommunication between interior venturi and the negative pressure tube, and positive pressure tube is L shape, and positive pressure tube and negative pressure tube pass through fixed establishment and fix in process line.
Preferably, the fixed establishment includes first backup pad, the second backup pad, the base, the ring flange, hexagon bolt, the nut and plain washer, positive pressure tube is fixed in first backup pad, negative pressure tube is fixed in the second backup pad, first backup pad and second backup pad are fixed in the bottom of ring flange, and then can realize positive pressure tube and negative pressure tube reliably fixing in the below of ring flange, can take out fast and put into, positive pressure tube and negative pressure tube all stretch out the ring flange, pass through hexagon bolt and nut fixed connection between ring flange and the base, plain washer sets up in nut department, the surface at the process tube is fixed to the base, and then realized the reliable fixation between whole flowmeter and the process tube.
Preferably, the flange plate is in sealing connection with the base through the gasket, so that the process pipeline is sealed and isolated from the outside, and the measurement accuracy is improved.
Preferably, the inner venturi is fixedly connected with the outer venturi through a pin.
Preferably, the positive pressure taking pipe and the negative pressure taking pipe are respectively provided with an external thread stop valve, so that the positive pressure taking pipe and the negative pressure taking pipe are conveniently connected with an external detection instrument.
Preferably, the exit angle of the outer venturi is between 10 and 20 degrees, the incident angle of the outer venturi is between 3 and 10 degrees, the exit angle of the inner venturi is between 15 and 25 degrees, and the incident angle of the inner venturi is between 2 and 6 degrees.
The beneficial effects of the utility model are as follows: in this bayonet low velocity of flow flowmeter, can realize the quick installation and the dismantlement of whole flowmeter through fixed establishment, improved the practicality of flowmeter, be convenient for carry out quick installation detection to somewhere process line, the venturi is in through negative pressure tube nipple joint intercommunication by the negative pressure tube, carries out negative flow pressure, is located outer venturi and interior venturi outside by positive pressure tube simultaneously, carries out positive flow pressure in step, has realized the flow detection to process line inside.
Drawings
The utility model is illustrated by way of specific embodiments and with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a side view of the present utility model.
In the figure: 1. the device comprises a process pipeline, an outer venturi, a pin, an inner venturi, a negative pressure pipe nipple, a positive pressure pipe nipple, a negative pressure pipe, a base, a flange, an external thread stop valve, a gasket, a hexagonal bolt, a nut, a flat washer, a first supporting plate and a second supporting plate, wherein the process pipeline, the outer venturi, the pin, the inner venturi, the negative pressure pipe nipple, the positive pressure pipe nipple, the negative pressure pipe nipple, the base, the flange, the external thread stop valve, the gasket, the hexagonal bolt, the nut, the flat washer and the first supporting plate and the second supporting plate.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
As shown in fig. 1 and 2, an inserted low-flow-rate flowmeter comprises a process pipeline 1, a fixing mechanism, an outer venturi 2, an inner venturi 4, a positive pressure taking pipe 6 and a negative pressure taking pipe 7, wherein the inner venturi 4 is arranged at the front end of the outer venturi 2, the inner venturi 4 is communicated with the negative pressure taking pipe 7 through a negative pressure taking pipe nipple 5, the positive pressure taking pipe 6 is L-shaped, the positive pressure taking pipe 6 and the negative pressure taking pipe 7 are fixed in the process pipeline 1 through the fixing mechanism, gas flows from left to right as shown in fig. 1, firstly enters the inner venturi 4, flows out of the outer venturi 2, then is communicated with the inner venturi 4 through the negative pressure taking pipe nipple 5 by the negative pressure taking pipe 7, and is subjected to negative flow pressure taking, and meanwhile, the positive pressure taking pipe 6 is positioned outside the outer venturi 2 and the inner venturi 4, so that flow detection of the interior of the process pipeline 1 is realized. Moreover, can realize the quick installation and the dismantlement of whole flowmeter through fixed establishment, improve the practicality of flowmeter, be convenient for carry out quick installation detection to somewhere process pipe 1.
Specifically, the fixed establishment includes first backup pad 15, second backup pad 16, base 8, ring flange 9, hexagon bolt 12, nut 13 and plain washer 14, positive pressure tube 6 is fixed on first backup pad 15, negative pressure tube 7 is fixed on second backup pad 16, first backup pad 15 and second backup pad 16 are fixed in the bottom of ring flange 9, and then can realize positive pressure tube 6 and negative pressure tube 7 reliably fixing in the below of ring flange 9, can take out fast and put into, positive pressure tube 6 and negative pressure tube 7 all stretch out ring flange 9, through hexagon bolt 12 and nut 13 fixed connection between ring flange 9 and the base 8, plain washer 14 sets up in nut 13 department, the surface at process tube 1 is fixed to base 8, and then realized the reliable fixation between whole flowmeter and the process tube 1.
Specifically, the flange plate 9 is in sealing connection with the base 8 through the gasket 11, so that the process pipeline 1 is sealed and isolated from the outside, and the measurement accuracy is improved.
Specifically, the inner venturi 4 is fixedly connected with the outer venturi 2 through a pin 3.
Specifically, the positive pressure taking pipe 6 and the negative pressure taking pipe 7 are respectively provided with an external thread stop valve 10, so that the connection with an external detection instrument is facilitated.
Specifically, the exit angle of the outer venturi 2 is between 10 and 20 degrees, the incident angle of the outer venturi 2 is between 3 and 10 degrees, the exit angle of the inner venturi 4 is between 15 and 25 degrees, and the incident angle of the inner venturi 4 is between 2 and 6 degrees.
The present utility model has been made in view of the above-described circumstances, and it is an object of the present utility model to provide a portable electronic device capable of performing various changes and modifications without departing from the scope of the technical spirit of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (6)
1. An insert low flow rate flow meter, characterized by: the device comprises a process pipeline, a fixing mechanism, an outer venturi, an inner venturi, a positive pressure taking pipe and a negative pressure taking pipe, wherein the inner venturi is arranged at the front end of the outer venturi, the inner venturi is communicated with the negative pressure taking pipe through a short joint of the negative pressure taking pipe, the positive pressure taking pipe is L-shaped, and the positive pressure taking pipe and the negative pressure taking pipe are fixed in the process pipeline through the fixing mechanism.
2. The plug-in low flow rate flow meter of claim 1, wherein: the fixing mechanism comprises a first supporting plate, a second supporting plate, a base, a flange plate, a hexagonal bolt, a nut and a flat washer, wherein the positive pressure taking pipe is fixed on the first supporting plate, the negative pressure taking pipe is fixed on the second supporting plate, the first supporting plate and the second supporting plate are fixed at the bottom of the flange plate, the positive pressure taking pipe and the negative pressure taking pipe extend out of the flange plate, the flange plate is fixedly connected with the base through the hexagonal bolt and the nut, the flat washer is arranged at the nut, and the base is fixed on the surface of the process pipeline.
3. The plug-in low flow rate flow meter of claim 2, wherein: the flange plate is connected with the base in a sealing way through a gasket.
4. The plug-in low flow rate flow meter of claim 1, wherein: the inner venturi is fixedly connected with the outer venturi through a pin.
5. The plug-in low flow rate flow meter of claim 1, wherein: the positive pressure taking pipe and the negative pressure taking pipe are respectively provided with an external thread stop valve.
6. The plug-in low flow rate flow meter of claim 1, wherein: the exit angle of the outer venturi is between 10 and 20 degrees, the incident angle of the outer venturi is between 3 and 10 degrees, the exit angle of the inner venturi is between 15 and 25 degrees, and the incident angle of the inner venturi is between 2 and 6 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320138418.3U CN219416288U (en) | 2023-01-15 | 2023-01-15 | Plug-in low flow rate flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320138418.3U CN219416288U (en) | 2023-01-15 | 2023-01-15 | Plug-in low flow rate flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219416288U true CN219416288U (en) | 2023-07-25 |
Family
ID=87235305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320138418.3U Active CN219416288U (en) | 2023-01-15 | 2023-01-15 | Plug-in low flow rate flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219416288U (en) |
-
2023
- 2023-01-15 CN CN202320138418.3U patent/CN219416288U/en active Active
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