CN213932669U - Assembled laminar flow sensor - Google Patents
Assembled laminar flow sensor Download PDFInfo
- Publication number
- CN213932669U CN213932669U CN202022415744.3U CN202022415744U CN213932669U CN 213932669 U CN213932669 U CN 213932669U CN 202022415744 U CN202022415744 U CN 202022415744U CN 213932669 U CN213932669 U CN 213932669U
- Authority
- CN
- China
- Prior art keywords
- laminar flow
- pressure sensor
- sensor
- housing
- flow element
- 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.)
- Active
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses an assembled laminar flow sensor, which comprises a shell, a laminar flow element and a calculation module; the shell comprises a fluid inlet and a fluid outlet, a laminar flow element is arranged between the fluid inlet and the fluid outlet, and the laminar flow element is in interference fit with the shell; the calculating module is arranged outside the shell and comprises a differential pressure sensor, a temperature sensor and a calculator, the detecting ends of the differential pressure sensor and the temperature sensor are arranged inside the shell, and the data ends of the differential pressure sensor and the temperature sensor are connected with the calculator. The utility model provides a laminar flow sensor make the technical problem of inefficiency, difficult maintenance among the prior art.
Description
Technical Field
The utility model relates to a flow measurement field, in particular to assembled laminar flow sensor.
Background
Laminar flow sensors are based on the Hagen-Poiseuille Law (Hagen-Poiseuille Law) design, a measurement tool for accurately measuring fluid flow. The laminar flow sensor in the prior art utilizes various modes to design flow elements, converts a turbulent disorder state of fluid into a laminar state, but has the problems of poor stability and low precision in actual use at different degrees. In addition, the laminar flow sensor has complex design, high precision, low yield, short service life, complex maintenance and poor economical efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an assembled laminar flow sensor solves among the prior art assembled laminar flow sensor output low, and life is short, maintains the technical problem complicated.
The utility model adopts the technical proposal that: the assembled laminar flow sensor comprises a shell, a laminar flow element and a calculation module;
the shell comprises a fluid inlet and a fluid outlet, a laminar flow element is arranged between the fluid inlet and the fluid outlet, and the laminar flow element is in interference fit with the shell;
the calculating module is arranged outside the shell and comprises a differential pressure sensor, a temperature sensor, a calculator and a pressure sensor, the detecting ends of the differential pressure sensor, the temperature sensor and the pressure sensor are arranged inside the shell, and the data ends of the differential pressure sensor, the temperature sensor and the pressure sensor are connected with the calculator.
Further, laminar flow component and casing interference fit specifically are, and laminar flow component outside is provided with the rubber sleeve, and laminar flow component and casing pass through the rubber sleeve and realize interference fit.
Further, the laminar flow element comprises a hollow shell with a partition arranged inside, and a solid elongated cylinder filled in the shell, wherein the cylinder has the same length as the shell.
Furthermore, the detection ends of the differential pressure sensor, the temperature sensor and the pressure sensor are arranged in the shell, and specifically, the detection ends are arranged in the shell in a mode of forming through holes in the shell.
Compared with the prior art, the assembled laminar flow sensor adopting the technical scheme has the advantages that: the precision is guaranteed, and meanwhile, the manufacturing is easier and the maintenance is convenient.
Drawings
FIG. 1 is a schematic view of an assembled laminar flow sensor;
fig. 2 is a schematic view of a laminar flow element in an assembled laminar flow sensor.
Detailed Description
As shown in fig. 1-2, the assembled laminar flow sensor includes a housing 1, a laminar flow element 3, and a calculation module 2;
the shell 1 comprises a fluid inlet and a fluid outlet, a laminar flow element 3 is arranged between the fluid inlet and the fluid outlet, and the laminar flow element 3 is in interference fit with the shell 1;
the calculation module 2 is arranged outside the shell 1, the calculation module 2 comprises a differential pressure sensor 7, a temperature sensor 5, a pressure sensor 4 and a calculator 6, the detection ends of the differential pressure sensor 7, the pressure sensor 4 and the temperature sensor 5 are arranged inside the shell 1, and the data ends of the differential pressure sensor 7, the temperature sensor 5 and the pressure sensor 4 are connected with the calculator 6.
The principle of operation of the assembled laminar flow sensor will be explained below, in which a fluid enters the housing 1 through the fluid inlet and then enters the laminar flow element 3, while the temperature sensor 5 transmits the temperature value to the calculator 6. Inside the laminar flow element 3, the fluid achieves a transition from turbulent to laminar flow and then flows out of the laminar flow element. The differential pressure sensor 7 transmits a pressure change value of a predetermined path to the calculator 6, and the calculator 6 acquires a flow rate value by a predetermined program. In particular, the fluid includes not only a liquid but also a fluid in which a gas and a gas-liquid coexist or a solid impurity is contained. Of course, to ensure accuracy, a filter screen may be provided at the fluid inlet. As can be seen from the above description, the laminar flow element is a main component of the sensor, and can be directly replaced when the laminar flow element is damaged in use. Secondly, the assembled design can be more suitable for mass production, the shell and the laminar flow element are separately manufactured and then uniformly assembled, and the production efficiency and the maintenance efficiency are greatly improved.
Further, laminar flow element 3 and 1 interference fit of casing specifically are, laminar flow element 3 outside is provided with the rubber sleeve, and laminar flow element 3 realizes interference fit through the rubber sleeve with casing 1. It should be noted that the rubber sleeve is only one way to achieve the interference fit, and may also be achieved by adding a gasket or using an adhesive, or may be achieved by relying only on the outer shell of the laminar flow member 3 and the housing 1 without a medium.
Further, the laminar flow member 3 includes a hollow housing 33 having the partition 31 therein, and a solid elongated cylinder 32 filling the housing 33, wherein the cylinder 32 has the same length as the housing 33. The purpose of providing the partition inside the laminar flow element 3 is to facilitate processing and fixing, and in certain cases, the partition may not be used, and the cylinder 32 may be directly used to fill the inside of the laminar flow element 3. It should also be noted that the partition in the schematic diagram is cross-shaped, and in the experiment and production, the partition adopts a shape like a Chinese character 'jing' or other partitions with fixed effect to achieve the purpose of the utility model.
Further, the detection ends of the differential pressure sensor 7, the pressure sensor 4 and the temperature sensor 5 are arranged inside the casing 1, specifically, the detection ends are arranged inside the casing 1 by forming through holes on the casing 1.
By the embodiment, the following beneficial effects can be obtained: when guaranteeing the precision, laminar flow sensor is changeed and is made, convenient maintenance.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. An assembled laminar flow sensor, characterized in that it comprises a housing (1), a laminar flow element (3) and a calculation module (2);
the housing (1) comprises a fluid inlet and a fluid outlet, the laminar flow element (3) being arranged intermediate the fluid inlet and the fluid outlet, the laminar flow element (3) being in interference fit with the housing (1);
calculation module (2) set up in the outside of casing (1), calculation module (2) include differential pressure sensor (7), temperature sensor (5), calculator (6), pressure sensor (4), differential pressure sensor (7) with temperature sensor (5), pressure sensor (4) the sense terminal place in inside casing (1), differential pressure sensor (7) temperature sensor (5) the data end of pressure sensor (4) with calculator (6) are connected.
2. An assembled laminar flow sensor according to claim 1, characterized in that the laminar flow element (3) is in interference fit with the housing (1), in particular, a rubber sleeve is arranged outside the laminar flow element (3), and the laminar flow element (3) and the housing (1) are in interference fit through the rubber sleeve.
3. An assembled laminar flow sensor according to claim 1, characterized in that the laminar flow element (3) comprises a hollow housing (33) inside which the interruptions (31) are arranged, a solid elongated cylinder (32) filling the housing (33), the cylinder (32) being of the same length as the housing (33).
4. The assembled laminar flow sensor according to claim 1, wherein the detection ends of the differential pressure sensor (7), the temperature sensor (5) and the pressure sensor (4) are disposed inside the housing (1), and in particular, the detection ends are disposed inside the housing (1) by forming through holes in the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415744.3U CN213932669U (en) | 2020-10-27 | 2020-10-27 | Assembled laminar flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022415744.3U CN213932669U (en) | 2020-10-27 | 2020-10-27 | Assembled laminar flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213932669U true CN213932669U (en) | 2021-08-10 |
Family
ID=77225134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022415744.3U Active CN213932669U (en) | 2020-10-27 | 2020-10-27 | Assembled laminar flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213932669U (en) |
-
2020
- 2020-10-27 CN CN202022415744.3U patent/CN213932669U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203224283U (en) | Liquid flow field calibration device | |
| CN103591994A (en) | High-accuracy flow measuring device not affected by environmental factors | |
| CN213932669U (en) | Assembled laminar flow sensor | |
| CN112798172A (en) | Multifunctional sensor | |
| CN103149137A (en) | Constant-pressure steady-state gas permeability measuring instrument | |
| CN206975065U (en) | A kind of flow sensor | |
| CN209570248U (en) | A kind of throw-in type liquid transmitter | |
| CN101504300A (en) | Differential pressure type flowmeter | |
| CN202018309U (en) | L-shaped Pitot tube flow meter | |
| CN211783642U (en) | Differential pressure flowmeter based on MEMS pressure sensor | |
| CN203587156U (en) | High-precision flow rate measuring device without being affected by environmental factor | |
| CN201368751Y (en) | Differential pressure flowmeter | |
| CN203964961U (en) | A kind of portable flow metering device | |
| CN207081512U (en) | A kind of waterpipe type pressure sensor | |
| CN201867278U (en) | Differential pressure diaphragm seal structure of transmitting instrument | |
| CN203893895U (en) | Electronic gas meter | |
| CN2338734Y (en) | Thermal type mass flow sensor | |
| CN208026320U (en) | A kind of high-sealed vortex-shedding meter | |
| CN104280076A (en) | High-precision large-diameter vortex flowmeter | |
| CN202383047U (en) | Constant pressure steady state gas permeability measuring instrument | |
| CN204202658U (en) | One possesses caliber high-precision flowmeter | |
| CN208350143U (en) | It is a kind of can long-range meter reading vortex-shedding meter | |
| CN204666208U (en) | A kind of ultrasonic water meter | |
| CN201034590Y (en) | Universal horizon rule | |
| CN213363896U (en) | Micro-flow laminar flow sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |