CN220120155U - Heavy-calibre nozzle flowmeter - Google Patents
Heavy-calibre nozzle flowmeter Download PDFInfo
- Publication number
- CN220120155U CN220120155U CN202321118112.8U CN202321118112U CN220120155U CN 220120155 U CN220120155 U CN 220120155U CN 202321118112 U CN202321118112 U CN 202321118112U CN 220120155 U CN220120155 U CN 220120155U
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- CN
- China
- Prior art keywords
- nozzle
- nozzle core
- pipe
- measuring holes
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004429 Calibre Substances 0.000 title claims description 3
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 238000010079 rubber tapping Methods 0.000 claims 2
- 238000005267 amalgamation Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a large-caliber nozzle flowmeter, which comprises a guide pipe, wherein a spliced accommodating cavity is formed in the inner wall of a joint between the guide pipe and the guide pipe, a nozzle core is arranged in the accommodating cavity, a cavity channel for fluid to pass through is formed in the center of the nozzle core, two measuring holes are formed in the guide pipe and are respectively positioned on two sides of the nozzle core, and the two measuring holes are respectively connected with a high-pressure taking pipe and a low-pressure taking pipe. According to the utility model, the nozzle core is arranged in the guide pipe in an embedded mode, so that on one hand, the stability is better, in addition, bolts are not needed for fixing, the leakage phenomenon can be effectively reduced, and the installation is more convenient.
Description
Technical Field
The utility model relates to the technical field of flowmeters, in particular to a large-caliber nozzle flowmeter.
Background
The flow metering is widely applied to various fields of industrial and agricultural production, national defense construction, scientific research on external trade and people's life. In the petroleum industry production, from petroleum exploitation, transportation, smelting and processing to trade sales, the flow measurement runs through the whole process, and any link is not separated from the flow measurement, otherwise, normal production and trade interaction of the petroleum industry cannot be guaranteed. In the chemical industry, inaccurate flow metering can cause imbalance of chemical component distribution ratio, product quality can not be guaranteed, and serious production safety accidents can also occur. In the industrial production of electric power, measurement and regulation of medium flow rates of liquids, gases, vapors and the like are important. The accuracy of flow measurement not only has great economic significance for ensuring the power plant to operate under the optimal parameters, but also becomes an important link for ensuring the safe operation of the power plant along with the development of high-temperature high-pressure large-capacity units. Such as interruption or reduction of the instantaneous feed water flow to a large capacity boiler, can cause serious dry or pipe explosion accidents. This requires that the flow measuring device not only meter accurately, but also send an alarm signal in time. In the steel industry, the flow measurement of circulating water and oxygen (or air) during steelmaking is one of the important parameters to ensure product quality. In the industries of light industry, food, textile and the like, the flow metering is not separated.
The existing nozzle flowmeter needs to be fixed by using one bolt during installation, but the leakage phenomenon is very easy to occur at the joint of the bolt.
Disclosure of Invention
According to the technical problem to be solved, the large-caliber nozzle flowmeter is provided.
In order to achieve the above purpose, the large-caliber nozzle flowmeter comprises a guide pipe, wherein a spliced accommodating cavity is formed in the inner wall of a joint between the guide pipe and the guide pipe, a nozzle core is arranged in the accommodating cavity, a cavity channel for fluid to pass through is formed in the center of the nozzle core, two measuring holes are formed in the guide pipe and are respectively positioned on two sides of the nozzle core, and the two measuring holes are respectively connected with a high-pressure taking pipe and a low-pressure taking pipe.
Preferably, the split containing cavity is communicated with the cavity in the catheter, the containing cavity is annular, and the thickness of the containing cavity is the same as that of the nozzle core.
Preferably, equidistant circular grooves are formed in two side wall surfaces of the accommodating cavity.
Preferably, equidistant positioning convex blocks are arranged on two side surfaces of the accommodating cavity part of the nozzle core, and the positioning convex blocks are embedded with the circular grooves.
Preferably, the edge of the first surface of the nozzle core, which is in contact with the medium, is arc-shaped.
Preferably, the nozzle core is arranged at the accommodating cavity part and connected with the protruding nozzle through an inclined plane.
Preferably, the measuring holes are arranged obliquely, and the distance between the bottoms of the two measuring holes is smaller than the distance between the tops.
The large-caliber nozzle flowmeter has the beneficial effects that the nozzle core is arranged in the guide pipe in an embedded mode, so that on one hand, the stability is better, in addition, the large-caliber nozzle flowmeter does not need to be fixed by bolts, the leakage phenomenon can be effectively reduced, and the large-caliber nozzle flowmeter is more convenient to install.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
Fig. 1 is a cross-sectional view of the present utility model.
In the figure, 1 is a high-pressure taking pipe; 2 is a low-pressure taking pipe; 3 is a nozzle core; 4 is a catheter; 5 is a positioning lug; and 6 is a measuring hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the large-caliber nozzle flowmeter comprises a guide pipe 4, wherein a spliced accommodating cavity is formed in the inner wall of a joint between the guide pipe 4 and the guide pipe 4, the accommodating cavity is used for accommodating the side wall of a nozzle core, the nozzle core is directly wrapped during splicing, a nozzle core 3 is arranged in the accommodating cavity, a cavity channel for fluid to pass through is arranged in the center of the nozzle core 3, two measuring holes 6 are formed in the guide pipe 4 and are respectively positioned on two sides of the nozzle core 3, the two measuring holes 6 are respectively connected with a high-pressure taking pipe 1 and a low-pressure taking pipe 2, and the pressure difference at two ends is measured through the high-pressure taking pipe 1 and the low-pressure taking pipe 2, so that the flow is calculated.
The split containing cavity is communicated with the cavity in the guide pipe 4, the containing cavity is annular, the thickness of the containing cavity is the same as that of the nozzle core 3, and therefore the nozzle core 3 can be wrapped after the guide pipe 4 is split, namely leakage is avoided, and bolt fastening is not needed.
Circular grooves with equal distance are formed in the two side wall surfaces of the accommodating cavity and are used for being embedded with the positioning protruding blocks 5 after the guide pipes 4 are spliced, so that the embedding is more stable.
The nozzle core 3 is arranged on two side surfaces of the accommodating cavity part and is provided with equidistant positioning convex blocks 5, and the positioning convex blocks 5 are embedded with the circular grooves, so that the nozzle core 3 is convenient to stabilize on one hand and cannot float or rotate after long-term use on the other hand.
The edge of the first surface of the nozzle core 3, which is in contact with the medium, is arc-shaped, so that the smoothness of the medium in the nozzle core is improved, and the flow of the medium is prevented from being slowed down.
The nozzle core 3 is arranged at the accommodating cavity part and connected with the protruding nozzle through an inclined plane, so that the stability of the nozzle core 3 when a medium flows can be increased, and the nozzle is prevented from expanding after long-time use.
The measuring holes 6 are obliquely arranged, the distance between the bottoms of the two measuring holes 6 is smaller than the distance between the tops, the distance between the measuring holes 6 is reduced, the measuring precision is further increased, and if the distance between the measuring holes 6 is too large, the medium flow rate has deviation.
It should be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The above examples are merely illustrative of the present utility model and are not meant to limit the scope of the present utility model, and all designs that are the same or similar to the present utility model are within the scope of the present utility model.
Claims (7)
1. The utility model provides a heavy-calibre nozzle flowmeter, its characterized in that, including pipe (4), the seam inner wall department between pipe (4) and pipe (4) is provided with the holding chamber of amalgamation, is located the holding intracavity and is provided with nozzle core (3), nozzle core (3) center is provided with the passageway that supplies the fluid to pass through, it has two measuring holes (6) to open on pipe (4) respectively to lie in the both sides of nozzle core (3), and two measuring holes (6) are connected with high pressure tapping pipe (1) and low pressure tapping pipe (2) respectively.
2. A large diameter nozzle flow meter according to claim 1, characterised in that the split receiving cavity is in communication with the cavity in the conduit (4) and is annular, the receiving cavity being of the same thickness as the nozzle core (3).
3. The large diameter nozzle flow meter of claim 2, wherein equidistant circular grooves are provided on both side walls of the receiving chamber.
4. A large caliber nozzle flowmeter according to claim 3, wherein the nozzle core (3) is provided with equidistant positioning projections (5) on both sides of the housing cavity portion, and the positioning projections (5) are engaged with the circular grooves.
5. A large diameter nozzle flow meter according to claim 1 or 4, characterised in that the first surface edge of the nozzle core (3) in contact with the medium is circular arc-shaped.
6. A large diameter nozzle flow meter according to claim 5, characterized in that the nozzle core (3) is placed at the receiving chamber portion and connected with the protruding nozzle by means of a bevel.
7. A large diameter nozzle flow meter according to claim 6, characterized in that the measuring holes (6) are arranged diagonally, the distance between the bottoms of the two measuring holes (6) being smaller than the distance between the tops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321118112.8U CN220120155U (en) | 2023-05-10 | 2023-05-10 | Heavy-calibre nozzle flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321118112.8U CN220120155U (en) | 2023-05-10 | 2023-05-10 | Heavy-calibre nozzle flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220120155U true CN220120155U (en) | 2023-12-01 |
Family
ID=88891542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321118112.8U Active CN220120155U (en) | 2023-05-10 | 2023-05-10 | Heavy-calibre nozzle flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220120155U (en) |
-
2023
- 2023-05-10 CN CN202321118112.8U patent/CN220120155U/en active Active
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| GR01 | Patent grant |