Pressure probe patency check device and method

Abstract

The application belongs to the technical field of pressure probe patency inspection, and particularly relates to a pressure probe patency inspection device and a method thereof, wherein the pressure probe patency inspection device comprises: an observation cabin made at least partially of a transparent material, a side wall of which is provided with an inspection hole and an exhaust port; the radial size of the exhaust port is gradually reduced; a measuring point part of a head part of a pressure probe can be inserted into the observation cabin through the inspection hole and faces the exhaust port; a gas filling pipeline is sequentially provided with a gas filling pump and a color smoke generating device, and an outlet of the gas filling pipeline is connected with a pressure measuring channel of a tail part of the pressure probe; and an exhaust fan is arranged in the observation cabin and is close to the exhaust port.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pressure probe patency inspection, and particularly relates to a pressure probe patency inspection device and a method thereof. BACKGROUND

[0002] In the test of an aero-engine or a gas turbine, a pressure probe is usually used to detect the pressure in a flow passage.

[0003] Patency is an important indicator of the effectiveness and integrity of a pressure probe, and is related to the accuracy of pressure detection.

[0004] Currently, the patency of a pressure probe is mainly checked by wind tunnel blowing, specifically, the pressure probe is placed in a calibration wind tunnel, the pressure value of a measuring point is measured, and the pressure value is compared with a standard pressure value to determine the patency of the pressure probe. This technical solution has high construction and operation costs of the calibration wind tunnel, complicated operation, low efficiency of pressure probe patency inspection, and difficulty in detecting problems such as air leakage of the pressure probe, deformation of the measuring point, and direction deflection.

[0005] The present application is proposed in view of the above technical defects.

[0006] It should be noted that the disclosure of the above background art content is only used to assist in understanding the inventive concept and technical solutions of the present application, and it does not necessarily belong to the prior art of the present patent application. In the absence of explicit evidence that the above content has been disclosed on the filing date of the present application, the above background art should not be used to evaluate the novelty and inventiveness of the present application. SUMMARY

[0007] The purpose of the present application is to provide a pressure probe patency inspection device and a method thereof to overcome or alleviate at least one aspect of the known technical defects.

[0008] The technical solution of the present application is:

[0009] In one aspect, a pressure probe patency inspection device is provided, comprising:

[0010] An observation cabin made at least partially of transparent material, with a side wall having an inspection hole and an exhaust port; the exhaust port gradually shrinks in radial dimension; a measuring point part of a head of the pressure probe can extend into the observation cabin through the inspection hole and face the exhaust port;

[0011] A gas charging pipeline, on which a gas charging pump and a colored smoke generating device are sequentially arranged, and an outlet of the pipeline is connected to a pressure measuring channel of a tail of the pressure probe;

[0012] An exhaust fan is arranged in the observation cabin and is close to the exhaust port.

[0013] According to at least one embodiment of the present application, in the pressure probe patency inspection device, the transparent material is optical glass, organic glass or acrylic material.

[0014] According to at least one embodiment of the present application, in the pressure probe patency inspection device, the part of the observation cabin made of transparent material is engraved with a reference line perpendicular or parallel to the measuring point of the head of the pressure probe.

[0015] According to at least one embodiment of the present application, in the pressure probe patency inspection device, the pressure probe is a multi-point total pressure probe, a directional probe, a comb-shaped pressure probe or a rake-shaped pressure probe.

[0016] The outlet of the inflation pipeline is divided into multiple small outlets, and each small outlet is connected to each pressure measuring channel of the tail of the pressure probe.

[0017] According to at least one embodiment of the present application, the pressure probe patency inspection device further comprises:

[0018] A smoke separator is installed at the exhaust port, and an exhaust pipeline is connected to the smoke separator.

[0019] A smoke particle collector is connected to the smoke separator through a pipeline.

[0020] In another aspect, a pressure probe patency inspection method is provided, comprising:

[0021] The measuring point part of the head of the pressure probe can be inserted into the observation cabin through the inspection hole, and is directed towards the exhaust port.

[0022] The outlet of the inflation pipeline is connected to the pressure measuring channel of the tail of the pressure probe.

[0023] The inflation pump, the color smoke generating device and the exhaust fan are started.

[0024] The color smoke discharged by the pressure probe in the observation cabin is observed through the part made of transparent material, and the patency of the pressure probe is inspected, specifically comprising:

[0025] The thickness of the color smoke trail discharged by the measuring point of the head of the pressure probe is observed, and compared with the designed diameter of the measuring point of the head of the pressure probe, to determine whether the measuring point has a blockage problem.

[0026] The shape of the color smoke trail discharged by the measuring point of the head of the pressure probe is observed, to determine whether the measuring point of the head of the pressure probe has a deformation or blockage problem.

[0027] The diffusion of the color smoke trail discharged by the measuring point of the head of the pressure probe is observed, to determine whether the roughness of the measuring point of the head of the pressure probe meets the application requirements.

[0028] Observe the direction of the color smoke tail of the pressure probe head point, and determine whether the direction of the pressure probe head point is deviated or not;

[0029] Observe whether the color smoke is exposed on the surface of the pressure probe head, and determine whether the pressure probe head has a gas leakage problem. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of a pressure probe patency checking device provided by the embodiment of the present application;

[0031] Among them:

[0032] 1-observation cabin; 2-pressure probe; 3-gas charging pipeline; 4-gas charging pump; 5-color smoke generating device; 6-exhaust fan; 7-smoke separator; 8-exhaust pipeline; 9-smoke particle collector.

[0033] In order to better illustrate the embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. In addition, the drawings are only used for illustrative description and cannot be understood as a limitation of the patent. DETAILED DESCRIPTION

[0034] In order to make the technical solutions of the present application and its advantages clearer, the technical solutions of the present application will be further clearly and completely described below in conjunction with the drawings. It can be understood that the specific embodiments described herein are only part of the embodiments of the present application, and are only used to explain the present application, but not to limit the present application. It should be noted that, in order to facilitate description, only parts related to the present application are shown in the drawings, and other related parts can refer to the patency design. In the case of no conflict, the embodiments in the present application and the technical features in the embodiments can be combined to obtain new embodiments.

[0035] In addition, unless otherwise defined, technical terms or scientific terms used in the description of the present application shall be understood as commonly understood by one of ordinary skill in the art to which the present application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer" and the like used in the description of the present application only indicate relative directions or positional relationships, and do not imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and the relative positional relationship may also change accordingly when the absolute position of the described object changes, therefore it cannot be understood as a limitation on the present application. The "first", "second", "third" and the like used in the description of the present application are only for the purpose of description, in order to distinguish different components, and cannot be understood as indicating or implying relative importance. The "one", "an" or "the" and the like used in the description of the present application should not be understood as an absolute limitation on the quantity, but should be understood as the presence of at least one. The "includes" or "contains" and the like used in the description of the present application means that the elements or objects appearing before the word are covered by the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0036] In addition, it should be further pointed out that, unless otherwise explicitly specified and limited, the "installation", "connection", "connection" and the like used in the description of the present application should be understood broadly, for example, the connection can be fixed connection, or detachable connection, or integral connection; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements, and those skilled in the art can understand the specific meaning of the present application according to the specific circumstances.

[0037] The following will be described in detail in combination with the accompanying drawings Figure 1 The present application will be further described in detail.

[0038] In one aspect, a pressure probe integrity inspection device is provided, comprising:

[0039] The observation cabin 1 is at least partially made of transparent material, the head can be open to the atmosphere, the side wall has an inspection hole and an exhaust port; the exhaust port is located at the tail, and the radial caliber gradually shrinks along the exhaust direction; the measurement point part of the head of the pressure probe 2 can be inserted into the observation cabin 1 through the inspection hole, facing the exhaust port, and a corresponding probe mounting seat can be configured;

[0040] The inflation pipeline 3 is sequentially provided with an inflation pump 4 and a color smoke generating device 5, and the outlet is connected to the pressure measurement channel of the tail of the pressure probe 2;

[0041] The exhaust fan 6 is arranged in the observation cabin 1 and is close to the exhaust port.

[0042] With the above disclosed pressure probe patency inspection device, the pressure probe patency inspection can be performed by the inflation pump 4 through the inflation pipeline 3 to introduce high pressure gas into the pressure measuring channel of the pressure probe 2, and the color smoke generated by the color smoke generator 5 is mixed into the high pressure gas, which is discharged from the head point of the pressure probe 2 in the observation cabin 1, and can be easily observed through the transparent material, so as to determine the patency of the pressure probe 2. For details, please refer to the pressure probe patency inspection method disclosed in the present application. The operation is simple and the pressure probe patency inspection has high efficiency.

[0043] In the above disclosed pressure probe patency inspection device, the color smoke generator 5 is used to generate smoke particles, and the particles with obvious color, low viscosity, non-toxic, non-corrosive, small particle size and easy atomization are selected as much as possible.

[0044] In the above disclosed pressure probe patency inspection device, the exhaust fan 6 is arranged near the exhaust port in the observation cabin 1, which can assist the color smoke discharged from the head point of the pressure probe 2 in the observation cabin 1 to be smoothly discharged from the exhaust port, so as to avoid accumulation in the observation cabin 1 and affect the observation.

[0045] In some optional embodiments, the transparent material of the above disclosed pressure probe patency inspection device is optical glass, organic glass or acrylic material.

[0046] In some optional embodiments, the part of the observation cabin 1 made of transparent material in the above disclosed pressure probe patency inspection device is engraved with a reference line perpendicular or parallel to the head point of the pressure probe 2, so as to assist the observation of the color smoke discharged from the head point of the pressure probe 2 in the observation cabin 1.

[0047] In some optional embodiments, the pressure probe 2 of the above disclosed pressure probe patency inspection device is a multi-point total pressure probe, a directional probe, a comb-shaped pressure probe or a rake-shaped pressure probe.

[0048] The outlet of the inflation pipeline 3 is divided into a plurality of small outlets, and each small outlet is connected to each pressure measuring channel of the tail of the pressure probe 2. The specific number and distribution position thereof can be set according to the number and distribution position of the pressure measuring channels of the tail of the pressure probe 2.

[0049] In some optional embodiments, the above disclosed pressure probe patency inspection device further comprises:

[0050] The smoke separator 7 is installed at the exhaust port, and the exhaust pipeline 8 is connected to the smoke separator 7, so as to separate the particle particles in the color smoke discharged from the exhaust port.

[0051] A smoke particle collector 9 is connected to the smoke separator 7 by a pipeline, and is used to collect the particles in the color smoke for recycling.

[0052] In another aspect, a pressure probe patency inspection method is provided, comprising:

[0053] The measuring point part of the head of the pressure probe 2 is extended into the observation cabin 1 through the inspection hole, and is directed towards the exhaust port.

[0054] The pressure measuring channel of the tail of the pressure probe 2 is connected to the outlet of the inflation pipeline 3.

[0055] The inflation pump 4, the color smoke generating device 5, and the exhaust fan 6 are started.

[0056] The color smoke discharged by the pressure probe 2 in the observation cabin 1 is observed through the part made of transparent material, and the patency of the pressure probe 2 is inspected, specifically comprising:

[0057] The thickness of the color smoke tail discharged by the measuring point of the head of the pressure probe 2 is observed, and compared with the designed diameter of the measuring point of the head of the pressure probe 2, to determine whether the measuring point has a blockage problem.

[0058] The shape of the color smoke tail discharged by the measuring point of the head of the pressure probe 2 is observed, to determine whether the measuring point of the head of the pressure probe 2 has a deformation or blockage problem.

[0059] The diffusion of the color smoke tail discharged by the measuring point of the head of the pressure probe 2 is observed, to determine whether the roughness of the measuring point of the head of the pressure probe 2 meets the application requirements.

[0060] The direction of the color smoke tail discharged by the measuring point of the head of the pressure probe 2 is observed, to determine whether the direction of the measuring point of the head of the pressure probe 2 has a deflection problem.

[0061] Whether the color smoke is exposed on the surface of the head of the pressure probe 2 is observed, to determine whether the head of the pressure probe 2 has a gas leakage problem.

[0062] The pressure probe patency inspection method disclosed in the above embodiment is implemented based on the pressure probe patency inspection device disclosed in the above embodiment, and is described simply. For specific related parts, refer to the related description of the pressure probe patency inspection device part. The technical effects can also refer to the technical effects of the related part of the pressure probe patency inspection device, which will not be described here.

[0063] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. For the same and similar parts between the various embodiments, refer to each other.

[0064] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, and those skilled in the art should understand that the protection scope of the present application is obviously not limited to these specific embodiments, and those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A pressure probe patency inspection method based on a pressure probe patency inspection device, the pressure probe patency inspection device comprising: an observation cabin (1) made at least partially of transparent material, the side wall having an inspection hole and an exhaust port, the exhaust port gradually shrinking in radial dimension, a measuring point part of a head of a pressure probe (2) being able to extend into the observation cabin (1) through the inspection hole and towards the exhaust port; an inflation pipeline (3) having an inflation pump (4) and a colored smoke generating device (5) sequentially arranged thereon, the outlet of the inflation pipeline (3) being connected to a pressure measuring channel of a tail of the pressure probe (2); an exhaust fan (6) arranged in the observation cabin (1) and close to the exhaust port; the transparent material being optical glass, organic glass or acrylic material; a part of the observation cabin (1) made of transparent material being engraved with a reference line perpendicular or parallel to the measuring point of the head of the pressure probe (2); the pressure probe (2) being a multi-point total pressure probe, a directional probe, a comb-shaped pressure probe or a rake-shaped pressure probe; the outlet of the inflation pipeline (3) being divided into multiple small outlets, each of the small outlets being connected to each of the pressure measuring channels of the tail of the pressure probe (2); the pressure probe patency inspection device further comprising: a smoke separator (7) installed at the exhaust port and having an exhaust pipeline (8) connected thereto; a smoke particle collector (9) connected to the smoke separator (7) through a pipeline; the pressure probe patency inspection method, characterized in that: the measuring point part of the head of the pressure probe (2) is extended into the observation cabin (1) through the inspection hole and towards the exhaust port; the outlet of the inflation pipeline (3) is connected to the pressure measuring channel of the tail of the pressure probe (2); the inflation pump (4), the colored smoke generating device (5) and the exhaust fan (6) are started; the colored smoke discharged by the pressure probe (2) in the observation cabin (1) is observed through the part made of transparent material, and the patency of the pressure probe (2) is inspected, specifically including: observing the thickness of the colored smoke trail discharged by the measuring point of the head of the pressure probe (2) and comparing it with the designed diameter of the measuring point of the head of the pressure probe (2) to determine whether the measuring point has a blockage problem; observing the shape of the colored smoke trail discharged by the measuring point of the head of the pressure probe (2) to determine whether the measuring point of the head of the pressure probe (2) has a deformation or blockage problem; observing the diffusion of the colored smoke trail discharged by the measuring point of the head of the pressure probe (2) to determine whether the roughness of the measuring point of the head of the pressure probe (2) meets the application requirements; observing the direction of the colored smoke trail discharged by the measuring point of the head of the pressure probe (2) to determine whether the direction of the measuring point of the head of the pressure probe (2) has a deflection problem; observing whether the colored smoke appears on the surface of the pressure probe (2) to determine whether the pressure probe (2) has a gas leakage problem.

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