阅读说明：本技术 一种多类型数据综合集成测量的流量测量探头 (Flow measurement probe for comprehensive integrated measurement of various types of data ) 是由 宋世峰 朱世民 周游 惠朝辉 于 2021-03-17 设计创作，主要内容包括：本发明提出了一种多类型数据综合集成测量的流量测量探头,与后端检测模块连接,所述流量测量探头包括探头,所述探头包括不规则腔体部和规则腔体部；所述规则腔体部静压腔和总压腔；所述总压腔远离静压腔的一端面为迎流面,设置有总压进气口；在所述静压腔的上端设置有静压孔；所述不规则腔体部设置在底座上,为不对称的两头尖中间厚的叶子形结构；所述规则腔体部设置在不规则腔体部的上端,在不规则腔体部的两端分别设置有竖直向下的总压内管道和静压内管道,所述总压内管道位于总压腔下且与所述总压进气口连通并通过底座与后端检测模块连接；所述静压内管道设置在静压腔下且与静压孔连通并通过底座与后段检测模块连接。(The invention provides a flow measurement probe for comprehensive integrated measurement of various types of data, which is connected with a rear-end detection module, and comprises a probe, wherein the probe comprises an irregular cavity part and a regular cavity part; the regular cavity part static pressure cavity and the total pressure cavity; one end face of the total pressure cavity, which is far away from the static pressure cavity, is a flow-facing face, and a total pressure air inlet is arranged on the end face; the upper end of the static pressure cavity is provided with a static pressure hole; the irregular cavity part is arranged on the base and is of an asymmetric leaf-shaped structure with two tips and a thick middle part; the regular cavity part is arranged at the upper end of the irregular cavity part, a total pressure inner pipeline and a static pressure inner pipeline which are vertically downward are respectively arranged at two ends of the irregular cavity part, and the total pressure inner pipeline is positioned below the total pressure cavity, is communicated with the total pressure air inlet and is connected with the rear end detection module through a base; the static pressure inner pipeline is arranged below the static pressure cavity, communicated with the static pressure hole and connected with the rear section detection module through the base.)

1. A flow measurement probe for comprehensive integrated measurement of multiple types of data is connected with a rear-end detection module and is characterized by comprising a probe (1) and a base (19) arranged at the bottom of the probe, wherein the probe (1) comprises an irregular cavity part (18) and a regular cavity part (17);

the regular cavity part (17) is of a left-right symmetrical leaf-shaped structure and comprises a static pressure cavity (2) positioned on one side of the blade tip and a total pressure cavity (3) positioned on the other side; one end face, far away from the static pressure cavity (2), of the total pressure cavity (3) is a flow-facing face, and a total pressure air inlet (8) is arranged; a static pressure hole (10) is formed in the upper end of the static pressure cavity (2);

the irregular cavity part (18) is arranged on the base (19) and is of an asymmetric leaf-shaped structure with two tips and a thick middle part; the regular cavity part (17) is arranged at the upper end of the irregular cavity part (18), a vertical downward total pressure inner pipeline (9) and a static pressure inner pipeline (11) are respectively arranged at two ends of the irregular cavity part (18), and the total pressure inner pipeline (9) is positioned below the total pressure cavity (3), communicated with the total pressure air inlet (8) and connected with the rear end detection module through a base (19); the static pressure inner pipeline (11) is arranged below the static pressure cavity (2), is communicated with the static pressure hole (10) and is connected with the rear section detection module through a base (19);

a total temperature chamber (13) is arranged in the middle section of the irregular cavity part (18), a sensitive element interlayer (14) is arranged in the total temperature chamber (13), the sensitive element interlayer (14) is of a vertical tubular structure, and the left side and the right side of the sensitive element interlayer (14) are respectively provided with an opening; a temperature sensitive element (15) is vertically arranged in the middle of the sensitive element interlayer (14), and the temperature sensitive element (15) is connected with the rear end detection module through a base (19);

the total temperature chamber (13) is provided with a total temperature air outlet (16) on the left side of the irregular cavity part (18) and a total temperature air inlet (12) on the right side.

2. The flow measuring probe for comprehensive integrated measurement of multiple types of data according to claim 1, wherein the left side of the irregular cavity part (18) is an outward convex arc structure, the right side of the irregular cavity part (18) is provided with an outward convex arc structure, the total temperature air inlet (12) is arranged on the outward convex arc structure on the right side of the irregular cavity part (18), the arc curvature of the arc structure on the left side of the irregular cavity part (18) is greater than that of the arc structure on the right side, and the arc curvature at the total temperature air outlet (16) is greater than that at the total temperature air inlet (12).

3. A multi-type data integrated measurement flow measurement probe according to claim 2, wherein the total temperature air inlet (12) has a larger caliber than the total temperature air outlet (16), and the opening of the sensing element isolation layer (14) facing the total temperature air inlet (12) has a larger caliber than the opening facing the total temperature air outlet (12).

4. The flow measuring probe for the comprehensive integrated measurement of multiple types of data according to claim 1, 2 or 3, characterized by further comprising a mounting flange (6), wherein the base (19) is arranged at the upper end of the mounting flange (6), two pressure conduction devices respectively connected with the static pressure inner pipeline (11) and the total pressure inner pipeline (9) are arranged at the bottom of the mounting flange (6), and a temperature sensing joint (20) connected with a temperature sensitive element is further arranged, and the pressure conduction devices and the temperature sensing joint (20) are respectively connected with the rear-end detection module.

5. A multi-type data-integrated measurement flow measurement probe according to claim 4, wherein the pressure conduction means is a pressure filler nozzle (7).

6. A probe for integrated measurement of flow measurements of multiple types of data according to claim 4, characterized in that a ring of sealing grooves (5) is provided at the upper end of the mounting flange (6) around the base (19).

Technical Field

The invention belongs to the technical field of flow field measurement, and particularly relates to a flow measurement probe for comprehensively and integrally measuring various types of data.

Background

In the prior art, in the field of in-pipe measurement, a temperature probe and a pressure probe are generally separated and need to be separately installed, so that the whole measurement layout is enlarged, and after a certain temperature probe or pressure probe is assembled in a pipe, the flow field in the pipe can be influenced, and a large error is brought to measurement of another sensor at the rear end, so that two types of probes are generally placed and installed in different regions and cannot be installed in the same nearby region. And meanwhile, the method cannot be used in some precise and tiny application scenes.

In the field of high-temperature and high-pressure in-pipe measurement, gas has obvious compressibility, and in the field of compressible fluid, such as application in high-temperature and high-pressure gas pipelines of engines and power plants, no total temperature measuring probe which has good coefficient of restitution and short response time and is used for in-pipe measurement exists in the market at present. And because the resolution of compressible fluid flow for differential pressure flow measurement must use the total temperature value to assess the compressibility and temperature of the fluid, there is currently no available differential pressure flow measurement probe. The flow measurement difficulty of compressible fluid is very big, and it is complicated to rely on other forms structures, and under the higher form of solving to the installation requirement, it is the technological blank of trade to possess total temperature, total pressure and static pressure highly integrated integrative probe more.

The above factors all cause the installation of the whole high-temperature and high-pressure gas flow measuring device in the pipe to occupy a large amount of space and heavy weight, and are not beneficial to the light and small integration of the system.

Disclosure of Invention

Aiming at the requirements of the prior art and in order to make up the technical blank of the prior art, the invention provides a flow measurement probe for comprehensive integrated measurement of multiple types of data, and the total temperature and total pressure and static pressure are integrated on one probe by arranging an irregular cavity part and a regular cavity part; the total-temperature measuring probe is used as a total-temperature measuring probe, has good recovery coefficient and short response time, can be used for measuring total pressure and static pressure of differential pressure type flow, and can be also suitable for narrow application scenes.

The specific implementation content of the invention is as follows:

the invention provides a flow measurement probe for comprehensive integrated measurement of various types of data, which is connected with a rear-end detection module, and comprises a probe and a base arranged at the bottom of the probe, wherein the probe comprises an irregular cavity part and a regular cavity part;

the regular cavity part is of a left-right symmetrical leaf-shaped structure and comprises a static pressure cavity positioned on one side of the blade tip and a total pressure cavity positioned on the other side of the blade tip; one end face of the total pressure cavity, which is far away from the static pressure cavity, is a flow-facing face, and a total pressure air inlet is arranged on the end face; the upper end of the static pressure cavity is provided with a static pressure hole;

the irregular cavity part is arranged on the base and is of an asymmetric leaf-shaped structure with two tips and a thick middle part; the regular cavity part is arranged at the upper end of the irregular cavity part, a total pressure inner pipeline and a static pressure inner pipeline which are vertically downward are respectively arranged at two ends of the irregular cavity part, and the total pressure inner pipeline is positioned below the total pressure cavity, is communicated with the total pressure air inlet and is connected with the rear end detection module through a base; the static pressure inner pipeline is arranged below the static pressure cavity, is communicated with the static pressure hole and is connected with the rear section detection module through the base;

a total temperature chamber is arranged in the middle section of the irregular cavity part, a sensitive element interlayer is arranged in the total temperature chamber, the sensitive element interlayer is of a vertical tubular structure, and the left side and the right side of the sensitive element interlayer are respectively provided with an opening; a temperature sensitive element is vertically arranged in the middle of the sensitive element interlayer and is connected with the rear end detection module through a base;

the total temperature chamber is provided with a total temperature air outlet on the left side of the irregular cavity part and a total temperature air inlet on the right side.

In order to better realize the invention, the left side of the irregular cavity part is an outward-convex arc structure, the right side of the irregular cavity part is provided with the outward-convex arc structure, the total temperature air inlet is arranged on the outward-convex arc structure on the right side of the irregular cavity part, the arc curvature of the arc structure on the left side of the irregular cavity part is larger than that of the arc structure on the right side, and the arc curvature at the total temperature air outlet is larger than that at the total temperature air inlet.

In order to better implement the invention, further, the aperture of the total temperature air inlet is larger than that of the total temperature air outlet, and the aperture of the opening of the sensitive element interlayer facing to the side of the total temperature air inlet is also larger than that of the opening facing to the side of the total temperature air outlet.

In order to better realize the invention, the detection device further comprises a mounting flange, the base is arranged at the upper end of the mounting flange, two pressure conduction devices respectively connected with the static pressure inner pipeline and the total pressure inner pipeline are arranged at the bottom of the mounting flange, the detection device is also provided with a temperature sensing joint connected with a temperature sensitive element, and the pressure conduction devices and the temperature sensing joint are respectively connected with the rear end detection module.

In order to better implement the invention, further, the pressure conduction device is a pressure filler neck.

In order to better implement the invention, a circle of sealing grooves are further arranged at the upper end of the mounting flange and surround the base.

Compared with the prior art, the invention has the following advantages and beneficial effects:

(1) the provided integrated probe with total temperature, total pressure and static pressure integration has the advantages of high temperature resistance, miniaturization, quick time response and high measurement sensitivity; the probe has the general total temperature, total pressure and static pressure integrated probe molded surfaces, not only can be used for measuring fluid in a pipe, but also can be used for measuring the atmospheric data of an airplane, and the probe simultaneously has a convenient flange installation form and can be set into a flexible flange structure form according to actual needs;

(2) the derivative structure of the invention can be used for in-pipe measurement, such as high-temperature and high-pressure bleed gas pipelines of engines and general hydraulic pipelines, and can also be used for out-of-pipe measurement, such as airplane atmospheric data measurement;

(3) the probe integrates the total temperature, the total pressure and the total temperature sensing part, has the advantages of high temperature resistance, miniaturization, quick time response and high measurement sensitivity, and has wide flow field measurement applicability;

(4) the probe has a small cross section area on the upstream surface, and has little influence on the original flow field in the pipeline;

(5) the probe is made of pure metal and has obvious high-temperature resistance, and the total temperature measurement cavity utilizes differential pressure airflow to measure, so that blockage caused by oncoming sandstone particles is effectively avoided.

Drawings

FIG. 1 is a schematic perspective view of a probe according to the present invention;

FIG. 2 is a right side view of the probe of the present invention;

FIG. 3 is a schematic view of the bottom structure of the mounting flange of the present invention;

FIG. 4 is a schematic structural diagram of the upstream side of the present invention;

FIG. 5 is a partial structural view of a total pressure air inlet on the upstream side of the present invention;

FIG. 6 is a schematic cross-sectional view of the connection of the total pressure gas inlet of the present invention with the total pressure inner pipe;

FIG. 7 is a partial schematic view of a static port of the present invention;

FIG. 8 is a schematic cross-sectional view of the flat shape of the static pressure port in connection with the static pressure inner pipe according to the present invention;

FIG. 9 is a schematic cross-sectional plan view of an irregular cavity portion of the present invention;

FIG. 10 is a schematic view of the shape of the regular cavity portion of the present invention.

Wherein: 1. the temperature sensor comprises a probe, 2, a static pressure cavity, 3, a total pressure cavity, 5, a sealing groove, 6, a mounting flange, 7, a pressure connecting pipe nozzle, 8, a total pressure air inlet, 9, a total pressure inner pipeline, 10, a static pressure hole, 11, a static pressure inner pipeline, 12, a total temperature air inlet, 13, a total temperature cavity, 14, a sensitive element interlayer, 15, a temperature sensitive element, 16, a total temperature air outlet, 17, a regular cavity part, 18, an irregular cavity part, 19, a base, 20 and a temperature sensing joint.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and therefore should not be considered as a limitation to the scope of protection. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

the invention provides a flow measurement probe for comprehensively and integrally measuring various types of data, which is connected with a rear-end detection module, wherein the flow measurement probe comprises a probe 1 and a base 19 arranged at the bottom of the probe, and the probe 1 comprises an irregular cavity part 18 and a regular cavity part 17;

the regular cavity part 17 is of a left-right symmetrical leaf-shaped structure and comprises a static pressure cavity 2 positioned on one side of the blade tip and a total pressure cavity 3 positioned on the other side; one end face of the total pressure cavity 3, far away from the static pressure cavity 2, is a head-on surface and is provided with a total pressure air inlet 8; a static pressure hole 10 is formed in the upper end of the static pressure cavity 2;

the irregular cavity part 18 is arranged on the base 19 and is of an asymmetric leaf-shaped structure with two tips and a thick middle part; the regular cavity part 17 is arranged at the upper end of the irregular cavity part 18, a total pressure inner pipeline 9 and a static pressure inner pipeline 11 which are vertically downward are respectively arranged at two ends of the irregular cavity part 18, and the total pressure inner pipeline 9 is positioned below the total pressure cavity 3, communicated with the total pressure air inlet 8 and connected with the rear end detection module through a base 19; the static pressure inner pipeline 11 is arranged below the static pressure cavity 2, is communicated with the static pressure hole 10 and is connected with the rear section detection module through a base 19;

a total temperature chamber 13 is arranged in the middle section of the irregular cavity part 18, a sensitive element interlayer 14 is arranged in the total temperature chamber 13, the sensitive element interlayer 14 is of a vertical tubular structure, and the left side and the right side of the sensitive element interlayer 14 are respectively provided with an opening; a temperature sensitive element 15 is vertically arranged in the middle of the sensitive element interlayer 14, and the temperature sensitive element 15 is connected with the rear end detection module through a base 19;

the total temperature chamber 13 is provided with a total temperature air outlet 16 at the left side of the irregular chamber part 18, and a total temperature air inlet 12 at the right side.

The working principle is as follows: the probe 1 is divided into two parts which are fixedly connected up and down, the lower part is an irregular cavity part 18 for measuring the total temperature, the upper part is a regular cavity part 17 for measuring the total pressure and static pressure, wherein the measurement of the total pressure is realized by arranging a total pressure air inlet 8 and a total pressure inner pipeline 9 which are perpendicular to the incoming flow on the incident flow surface, the measurement of the static pressure is realized by arranging a static pressure hole 10 and a static pressure inner pipeline 11 on the top surface of the probe, the total pressure inner pipeline 9 and the static pressure inner pipeline 11 are respectively communicated with two pressure connection pipe nozzles 7, the pressure conduction and the pipeline butt joint are conveniently realized by a rear end detection module of the next stage, the total temperature is realized by the pressure difference generated by the air flow flowing through the irregular cavity part 18, the air flow flows from the total temperature air inlet 12 to the total temperature air outlet 16 due to different pressures on two sides of the irregular cavity part 18, and the air flow is blocked in the total temperature cavity 13 due, but also ensures that the airflow has certain flow, thereby realizing good temperature response. It should be noted that, the rear end detection module only includes a device that can be respectively communicated with the total pressure inner pipe 9 and the static pressure inner pipe 11 and transmit pressure to the sensing detection end for pressure detection, and the description is omitted because the device is the prior art.

Example 2:

in this embodiment, on the basis of the foregoing embodiment 1, in order to better implement the present invention, further, the left side of the irregular cavity portion 18 is an outward convex arc structure, the right side of the irregular cavity portion 18 is provided with an outward convex arc structure, the total temperature air inlet 12 is arranged on the outward convex arc structure on the right side of the irregular cavity portion 18, the arc curvature of the arc structure on the left side of the irregular cavity portion 18 is greater than the arc curvature of the arc structure on the right side, and the arc curvature at the total temperature air outlet 16 is greater than the arc curvature at the total temperature air inlet 12.

The working principle is as follows: set up the circular arc crookedness and can reduce fluidic hindering, reduce measuring error, the difference of radian can bring the pressure differential, and then ensures the flow direction that inlet air inlet 12 side of total temperature goes into outlet air outlet 16 side of total temperature.

Other parts of this embodiment are the same as those of embodiment 1, and thus are not described again.

Example 3:

in this embodiment, based on any one of the above embodiments 1-2, in order to better implement the present invention, further, the aperture of the total temperature air inlet 12 is larger than the aperture of the total temperature air outlet 16, and the aperture of the opening of the sensing element partition 14 facing the total temperature air inlet 12 is also larger than the aperture of the opening facing the total temperature air outlet 12.

The working principle is as follows: the degree of curvature of the arc at the total temperature gas outlet 16 is greater than the degree of curvature of the arc at the total temperature gas inlet 12, so that a further pressure difference is generated to ensure that gas flows in from the total temperature gas inlet 12.

Other parts of this embodiment are the same as any of embodiments 1-2 described above, and thus are not described again.

Example 4:

in this embodiment, on the basis of any one of the above embodiments 1 to 3, in order to better implement the present invention, further, the mounting flange 6 is further included, the base 19 is disposed at an upper end of the mounting flange 6, two pressure conduction devices respectively connected to the static pressure inner pipe 11 and the total pressure inner pipe 9 are disposed at a bottom of the mounting flange 6, and a temperature sensing connector 20 connected to a temperature sensitive element is further disposed, and the pressure conduction devices and the temperature sensing connector 20 are respectively connected to the rear end detection module.

The pressure conduction device is a pressure filler neck 7.

The working principle is as follows: the mounting flange 6 can facilitate the installation of the probe 1 and the base 19 in various measurement environments.

Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.

Example 5:

this embodiment is based on any of the above embodiments 1 to 4, and in order to better implement the present invention, further, a ring of sealing grooves 5 is provided around the base 19 at the upper end of the mounting flange 6.

The working principle is as follows: a sealing groove 5 is provided on the mounting flange 6 so that the mounting flange 6 can be sealed with a pipe by the sealing groove 6.

Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.