CN114370422A - Coordinate frame for collecting fan-shaped blade grid inlet flow field and using method thereof - Google Patents
Coordinate frame for collecting fan-shaped blade grid inlet flow field and using method thereof Download PDFInfo
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- CN114370422A CN114370422A CN202111607528.1A CN202111607528A CN114370422A CN 114370422 A CN114370422 A CN 114370422A CN 202111607528 A CN202111607528 A CN 202111607528A CN 114370422 A CN114370422 A CN 114370422A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
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Abstract
The invention discloses a coordinate frame for collecting a fan-shaped cascade inlet flow field, which comprises an upper displacement grid plate, a lower displacement grid plate is fixedly connected below the upper displacement grid plate, a displacement mechanism supporting frame is connected inside the lower displacement grid plate in a sliding manner, the number of the displacement mechanism supporting frames is two, the inside of the two displacement mechanism supporting frames is respectively provided with a first probe and a second probe in a penetrating way, the centers of rotation of the second probe fixing frame and the first probe fixing frame are both arranged on the Z axis, and the center of rotation of the upper displacement grid plate is also arranged on the Z axis, the fan-shaped cascade inlet flow field is collected through the arranged first probe, the direction of the probe head is consistent with the incoming flow direction of air flow, the second probe is used for collecting the flow field of the fan-shaped cascade outlet flow field, the direction of the probe head is consistent with the direction of the air flow of the cascade outlet, and data can be collected accurately.
Description
Technical Field
The invention belongs to the technical field of impeller machinery, and particularly relates to a coordinate frame for collecting a fan-shaped cascade inlet flow field and a using method thereof.
Background
The impeller machine is a power machine which takes continuous rotating blades as a body and enables energy to be converted between fluid working media and shaft power.
The data acquired by the existing probe is not fine enough, and the probe of the fan-shaped cascade inlet flow field is difficult to traverse the whole inlet channel.
Disclosure of Invention
The invention aims to overcome the existing defects and provides a coordinate frame for acquiring a fan-shaped cascade inlet flow field and a using method thereof, so as to solve the problems that the data acquired by the existing probe in the background technology is not fine enough and the probe of the fan-shaped cascade inlet flow field is difficult to traverse the whole inlet channel.
In order to achieve the purpose, the invention provides the following technical scheme: a coordinate frame for collecting a fan-shaped cascade inlet flow field and a using method thereof comprise an upper displacement grid plate, a lower displacement grid plate is fixedly connected below the upper displacement grid plate, the interior of the lower displacement grid plate is connected with two displacement mechanism supporting frames in a sliding manner, the interiors of the two displacement mechanism supporting frames are respectively provided with a first probe and a second probe in a penetrating manner, the bottoms of the two displacement mechanism supporting frames are respectively provided with a first probe fixing seat frame and a second probe fixing seat frame, one sides of the first probe fixing seat frame and the second probe fixing seat frame are respectively and fixedly connected with a fixing bolt, one side of the fixing bolt is fixedly connected with an extension fixing frame, the interiors of the two extension fixing frames are respectively provided with a first probe and a second probe in an inserting manner, two sides of the first probe fixing seat frame and the second probe fixing seat frame are respectively and fixedly connected with a linear displacement coordinate guide rail, the linear displacement coordinate guide rails on the two sides are fixedly connected with the two sides of the fixing bolt respectively, a lead screw penetrates through the inside of the fixing bolt, and a blade grid airflow outlet is formed in the upper portion of the lower displacement grid plate.
Preferably, the first probe fixing frame and the second probe fixing frame are used for controlling the rotation of the upper displacement grid plate and the lower displacement grid plate on the X-Y plane.
Preferably, the centers of rotation of the second probe fixing frame and the first probe fixing frame are on the Z axis, and the center of rotation of the upper displacement grid plate is also on the Z axis.
Preferably, the first probe is used for collecting a fan-shaped cascade inlet flow field, and the direction of the probe head is consistent with the incoming flow direction of the airflow.
Preferably, the second probe is used for collecting a flow field at the outlet of the fan-shaped blade grid, the direction of the probe head is consistent with the direction of airflow at the outlet of the blade grid, and data can be collected accurately.
Preferably, the first probe can move between the blade root and the blade top along the radial direction under the control of the second probe fixing frame, and the whole inlet channel can be traversed by matching the rotation of the second probe fixing frame, so that the flow field data of the whole inlet channel surface can be acquired.
Preferably, the second probe can also move radially between the blade root and the blade tip under the control of the first probe fixing frame, and the second probe can traverse the whole outlet channel to acquire flow field data of the whole outlet channel surface by matching with the rotation of the first probe fixing frame.
A use method of a coordinate frame for collecting a fan-shaped cascade inlet flow field comprises the following steps:
the method comprises the following steps: producing a displacement mechanism support frame, a second probe fixing seat standard frame and a first probe fixing seat standard frame which meet the requirements according to the acquisition requirements, and installing the displacement mechanism support frame, the second probe fixing seat standard frame and the first probe fixing seat standard frame in a matched manner;
step two: respectively installing the linear displacement coordinate guide rails on two sides of one side of a first probe fixing rack and one side of a second probe fixing rack, enabling two ends of the fixing bolts to cross over the linear displacement coordinate guide rails fixedly installed on the two sides, respectively fixing a first probe and a second probe on the surfaces of the two fixing bolts through an extending fixing frame, and enabling the first probe and the second probe to be far away from each other;
step three: producing a lower displacement grid plate and an upper displacement grid plate which are combined into an integral part, fixing a first probe which meets experimental conditions between the lower displacement grid plate and the upper displacement grid plate, installing a first probe on one side of a second probe fixing base frame to one side of the lower displacement grid plate, and installing a second probe on one side of the first probe fixing base frame to the other side of the lower displacement grid plate;
step four: and the top of the two displacement mechanism support frames penetrates through the two sides of the interior of the lower displacement grid plate and is limited to slide in the interior of the lower displacement grid plate, and the radian of the displacement mechanism support frames is adapted to the radian of the lower displacement grid plate.
Preferably, in the first step, the second step and the third step, the first probe fixing frame and the second probe fixing frame are used for controlling the rotation of the upper displacement grid plate and the lower displacement grid plate on the X-Y plane, the circle center of the upper displacement grid plate is located on the Z axis, and the second probe fixing frame and the first probe fixing frame rotate by taking the same Z axis as the center.
Preferably, step three includes the steps of:
step 3.1: collecting fan-shaped cascade inlet flow field data by using a first probe in the third step, and collecting fan-shaped cascade outlet flow field data by using a second probe;
step 3.2: and the displacement radians of the first probe and the second probe are controlled by the second probe fixing frame and the first probe fixing frame respectively, so that the first probe and the second probe can traverse the whole outlet channel and acquire the flow field data of the whole inlet and outlet channel surface.
Compared with the prior art, the invention provides a coordinate frame for collecting a fan-shaped cascade inlet flow field and a using method thereof, and the coordinate frame has the following beneficial effects:
1. the centers of rotation of the second probe fixing seat frame and the first probe fixing seat frame are on the Z axis, the center of rotation of the upper displacement grid plate is also on the Z axis, the first probe is used for collecting a fan-shaped blade grid inlet flow field, the direction of a probe head is consistent with the incoming flow direction of airflow, the second probe is used for collecting a fan-shaped blade grid outlet flow field, and the direction of the probe head is consistent with the direction of the airflow at the outlet of the blade grid, so that data can be accurately collected.
2. The invention can traverse the whole inlet channel and acquire the flow field data of the whole inlet channel surface by arranging the first probe to move along the radial direction between the blade root and the blade top under the control of the second probe fixing standard frame and matching with the rotation of the second probe fixing standard frame, and can also move along the radial direction between the blade root and the blade top under the control of the first probe fixing standard frame and matching with the rotation of the first probe fixing standard frame, and the second probe can traverse the whole outlet channel and acquire the flow field data of the whole outlet channel surface.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a schematic side view of a first embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the structure A proposed by the present invention;
FIG. 3 is a schematic perspective view of the present invention;
FIG. 4 is a schematic structural diagram of a second side view according to the present invention;
in the figure: 1. an upper displacement grid; 2. a lower displacement grid plate; 3. a displacement mechanism support frame; 4. a first probe; 5. fixing the bolt; 6. a lead screw; 7. linear displacement coordinate guide rails; 8. a first probe fixing base frame; 9. a second probe; 10. a cascade gas flow outlet; 11. the second probe fixes the standard frame.
Detailed Description
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 is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Real-time instance one
Referring to fig. 1-4, the present invention provides a technical solution: a fan-shaped blade grid import flow field collection coordinate frame comprises an upper displacement grid plate 1, a lower displacement grid plate 2 is fixedly connected below the upper displacement grid plate 1, the inner part of the lower displacement grid plate 2 is connected with two displacement mechanism support frames 3 in a sliding way, the inner parts of the two displacement mechanism support frames 3 are respectively provided with a first probe 4 and a second probe 9 in a penetrating way, the bottoms of the two displacement mechanism support frames 3 are respectively provided with a first probe fixing rack 8 and a second probe fixing rack 11, one sides of the first probe fixing rack 8 and the second probe fixing rack 11 are respectively fixedly connected with a fixing bolt 5, one side of the fixing bolt 5 is fixedly connected with an extension fixing rack, the inner parts of the two extension fixing racks are respectively provided with a first probe 4 and a second probe 9 in an inserting way, both sides of the first probe fixing rack 8 and the second probe fixing rack 11 are respectively fixedly connected with a linear displacement coordinate guide rail 7, the linear displacement coordinate guide rails 7 on the two sides are respectively fixedly connected with the two sides of the fixing bolt 5, a lead screw 6 penetrates through the fixing bolt 5, and a blade grid airflow outlet 10 is arranged above the lower displacement grid plate 2.
The working principle and the using process of the invention are as follows: when the device is used, the first probe fixing frame 8 and the second probe fixing frame 11 are used for controlling the rotation of the upper displacement grid plate 1 and the lower displacement grid plate 2 on an X-Y plane, the first probe 4 is used for collecting a fan-shaped blade grid inlet flow field, the direction of a probe head is consistent with the incoming flow direction of airflow, the second probe 9 is used for collecting a fan-shaped blade grid outlet flow field, the second probe 9 can also move along the radial direction between a blade root and a blade top under the control of the first probe fixing frame 8 and is matched with the rotation of the first probe fixing frame 8, the second probe 9 can traverse the whole outlet channel, and the flow field data of the whole outlet channel surface is collected.
Real-time example two
Referring to fig. 1-4, the present invention provides a technical solution: a coordinate frame for fan-shaped cascade inlet flow field collection and a using method thereof comprise an upper displacement grid plate 1, a lower displacement grid plate 2 is fixedly connected below the upper displacement grid plate 1, two displacement mechanism support frames 3 are slidably connected inside the lower displacement grid plate 2, a first probe 4 and a second probe 9 are respectively arranged inside the two displacement mechanism support frames 3 in a penetrating way, a first probe fixing rack 8 and a second probe fixing rack 11 are respectively arranged at the bottoms of the two displacement mechanism support frames 3, a fixing bolt 5 is fixedly connected to one side of each of the first probe fixing rack 8 and the second probe fixing rack 11, an extension fixing rack is fixedly connected to one side of each fixing bolt 5, a first probe 4 and a second probe 9 are respectively inserted and arranged inside the two extension fixing racks, displacement linear coordinate guide rails 7 are fixedly connected to both sides of the first probe fixing rack 8 and the second probe fixing rack 11, the linear displacement coordinate guide rails 7 on the two sides are respectively fixedly connected with the two sides of the fixing bolt 5, a lead screw 6 penetrates through the fixing bolt 5, and a blade grid airflow outlet 10 is arranged above the lower displacement grid plate 2.
In the present invention, it is preferable that the first probe fixing frame 8 and the second probe fixing frame 11 are used to control the rotation of the upper displacement grid 1 and the lower displacement grid 2 in the X-Y plane.
In the present invention, preferably, the centers of rotation of the second probe fixing frame 11 and the first probe fixing frame 8 are both on the Z axis, and the center of rotation of the upper displacement grid plate 1 is also on the Z axis.
In the present invention, preferably, the first probe 4 is used for collecting a fan-shaped cascade inlet flow field, and the direction of the probe head is consistent with the incoming flow direction of the airflow.
In the present invention, preferably, the second probe 9 is used for collecting a flow field at an outlet of the fan-shaped blade cascade, and a direction of the probe head is consistent with a direction of an airflow at the outlet of the blade cascade.
In the invention, preferably, the first probe 4 can move along the radial direction between the blade root and the blade top under the control of the second probe fixing standard frame 11, and the whole inlet channel can be traversed by matching with the rotation of the second probe fixing standard frame 11, so as to acquire the flow field data of the whole inlet channel surface.
In the present invention, preferably, the second probe 9 can also move radially between the blade root and the blade tip under the control of the first probe fixing frame 8, and the second probe 9 can traverse the entire outlet channel to acquire the flow field data of the entire outlet channel surface in cooperation with the rotation of the first probe fixing frame 8.
In the present invention, it is preferable that the method comprises the following steps:
the method comprises the following steps: producing a displacement mechanism support frame 3, a second probe fixing seat standard frame 11 and a first probe fixing seat standard frame 8 which meet the requirements according to the acquisition requirements, and installing the three in a matched manner;
step two: respectively installing a linear displacement coordinate guide rail 7 on two sides of one side of a first probe fixing seat frame 8 and a second probe fixing seat frame 11, enabling two ends of a fixing bolt 5 to cross over the linear displacement coordinate guide rail 7 fixedly installed on the two sides, respectively fixing a first probe 4 and a second probe 9 on the surfaces of the two fixing bolts 5 through an extending fixing frame, and enabling the first probe 4 and the second probe 9 to be far away from each other;
step three: producing a lower displacement grid plate 2 and an upper displacement grid plate 1 which are combined into an integral part, fixing a probe 10 meeting experimental conditions between the lower displacement grid plate 2 and the upper displacement grid plate 1, extending a first probe 4 at one side of a second probe fixing base frame 11 to one side of the lower displacement grid plate 2, and extending a second probe 9 at one side of a first probe fixing base frame 8 to the other side of the lower displacement grid plate 2;
step four: the top of the two displacement mechanism supporting frames 3 penetrate through the two sides of the inner part of the lower displacement grid plate 2 and are limited to slide in the inner part of the lower displacement grid plate 2, and the radian of the displacement mechanism supporting frames 3 is adapted to the radian of the lower displacement grid plate 2.
In the present invention, preferably, in the first step, the second step, and the third step, the first probe fixing frame 8 and the second probe fixing frame 11 are used to control the rotation of the upper displacement grid 1 and the lower displacement grid 2 on the X-Y plane, the center of the upper displacement grid 1 is located on the Z axis, and the second probe fixing frame 11 and the first probe fixing frame 8 rotate around the same Z axis.
The working principle and the using process of the invention are as follows: when in use, the device is provided with two displacement mechanism support frames 3 which can respectively fix a first probe 4 and a second probe 9, the height of the probes is adjusted through a screw 6 to adapt to the range of a detection flow field so as to respectively detect an inlet flow field and an outlet flow field, the first probe fixing frame 8 and the second probe fixing frame 11 are used for controlling the rotation of an upper displacement grid plate 1 and a lower displacement grid plate 2 on an X-Y plane, the centers of the circles of the rotation of the second probe fixing frame 11 and the first probe fixing frame 8 are both on a Z axis, the center of the circle of the upper displacement grid plate 1 is also on the Z axis, the first probe 4 is used for collecting the inlet flow field of the fan-shaped blade grid, the direction of the probe head is consistent with the incoming flow direction of airflow, the second probe 9 is used for collecting the outlet flow field of the fan-shaped blade grid, the second probe 9 can also move along the radial direction between the blade root and the blade top under the control of the first probe fixing frame 8, in cooperation with the rotation of the first probe fixing frame 8, the second probe 9 can traverse the whole outlet channel and acquire the flow field data of the whole outlet channel surface.
Example three in real time
Referring to fig. 1-4, the present invention provides a technical solution: a coordinate frame for fan-shaped cascade inlet flow field collection and a using method thereof comprise an upper displacement grid plate 1, a lower displacement grid plate 2 is fixedly connected below the upper displacement grid plate 1, two displacement mechanism support frames 3 are slidably connected inside the lower displacement grid plate 2, a first probe 4 and a second probe 9 are respectively arranged inside the two displacement mechanism support frames 3 in a penetrating way, a first probe fixing rack 8 and a second probe fixing rack 11 are respectively arranged at the bottoms of the two displacement mechanism support frames 3, a fixing bolt 5 is fixedly connected to one side of each of the first probe fixing rack 8 and the second probe fixing rack 11, an extension fixing rack is fixedly connected to one side of each fixing bolt 5, a first probe 4 and a second probe 9 are respectively inserted and arranged inside the two extension fixing racks, displacement linear coordinate guide rails 7 are fixedly connected to both sides of the first probe fixing rack 8 and the second probe fixing rack 11, the linear displacement coordinate guide rails 7 on the two sides are respectively fixedly connected with the two sides of the fixing bolt 5, a lead screw 6 penetrates through the fixing bolt 5, and a blade grid airflow outlet 10 is arranged above the lower displacement grid plate 2.
In the present invention, it is preferable that the first probe fixing frame 8 and the second probe fixing frame 11 are used to control the rotation of the upper displacement grid 1 and the lower displacement grid 2 in the X-Y plane.
In the present invention, preferably, the centers of rotation of the second probe fixing frame 11 and the first probe fixing frame 8 are both on the Z axis, and the center of rotation of the upper displacement grid plate 1 is also on the Z axis.
In the present invention, preferably, the first probe 4 is used for collecting a fan-shaped cascade inlet flow field, and the direction of the probe head is consistent with the incoming flow direction of the airflow.
In the present invention, preferably, the second probe 9 is used for collecting a flow field at an outlet of the fan-shaped blade cascade, and a direction of the probe head is consistent with a direction of an airflow at the outlet of the blade cascade.
In the invention, preferably, the first probe 4 can move along the radial direction between the blade root and the blade top under the control of the second probe fixing standard frame 11, and the whole inlet channel can be traversed by matching with the rotation of the second probe fixing standard frame 11, so as to acquire the flow field data of the whole inlet channel surface.
In the present invention, preferably, the second probe 9 can also move radially between the blade root and the blade tip under the control of the first probe fixing frame 8, and the second probe 9 can traverse the entire outlet channel to acquire the flow field data of the entire outlet channel surface in cooperation with the rotation of the first probe fixing frame 8.
In the present invention, it is preferable that the method comprises the following steps:
the method comprises the following steps: producing a displacement mechanism support frame 3, a second probe fixing seat standard frame 11 and a first probe fixing seat standard frame 8 which meet the requirements according to the acquisition requirements, and installing the three in a matched manner;
step two: respectively installing a linear displacement coordinate guide rail 7 on two sides of one side of a first probe fixing seat frame 8 and a second probe fixing seat frame 11, enabling two ends of a fixing bolt 5 to cross over the linear displacement coordinate guide rail 7 fixedly installed on the two sides, respectively fixing a first probe 4 and a second probe 9 on the surfaces of the two fixing bolts 5 through an extending fixing frame, and enabling the first probe 4 and the second probe 9 to be far away from each other;
step three: producing a lower displacement grid plate 2 and an upper displacement grid plate 1 which are combined into an integral part, fixing a probe 10 meeting experimental conditions between the lower displacement grid plate 2 and the upper displacement grid plate 1, extending a first probe 4 at one side of a second probe fixing base frame 11 to one side of the lower displacement grid plate 2, and extending a second probe 9 at one side of a first probe fixing base frame 8 to the other side of the lower displacement grid plate 2;
step four: the top of the two displacement mechanism supporting frames 3 penetrate through the two sides of the inner part of the lower displacement grid plate 2 and are limited to slide in the inner part of the lower displacement grid plate 2, and the radian of the displacement mechanism supporting frames 3 is adapted to the radian of the lower displacement grid plate 2.
In the present invention, preferably, in the first step, the second step, and the third step, the first probe fixing frame 8 and the second probe fixing frame 11 are used to control the rotation of the upper displacement grid 1 and the lower displacement grid 2 on the X-Y plane, the center of the upper displacement grid 1 is located on the Z axis, and the second probe fixing frame 11 and the first probe fixing frame 8 rotate around the same Z axis.
In the present invention, preferably, step three includes the following steps:
step 3.1: acquiring fan-shaped cascade inlet flow field data by using a first probe 4 in the third step, and acquiring fan-shaped cascade outlet flow field data by using a second probe 9;
step 3.2: the displacement radians of the first probe 4 and the second probe 9 are controlled by the second probe fixing standard frame 11 and the first probe fixing standard frame 8 respectively, so that the first probe 4 and the second probe 9 can traverse the whole outlet channel and collect the flow field data of the whole inlet and outlet channel surface.
The working principle and the using process of the invention are as follows: when in use, the device is provided with two displacement mechanism support frames 3 which can respectively fix a first probe 4 and a second probe 9, the height of the probes is adjusted through a screw 6 to adapt to the range of a detection flow field and enable the detection flow field to respectively detect an inlet flow field and an outlet flow field, a first probe fixing frame 8 and a second probe fixing frame 11 are used for controlling the rotation of an upper displacement grid plate 1 and a lower displacement grid plate 2 on an X-Y plane, the centers of circles of the rotation of the second probe fixing frame 11 and the first probe fixing frame 8 are both on a Z axis, the center of circle of the upper displacement grid plate 1 is also on the Z axis, the first probe 4 is used for collecting the inlet flow field of the fan-shaped blade grid, the direction of the probe head is consistent with the incoming flow direction of an air flow, the second probe 9 is used for collecting the outlet flow field of the fan-shaped blade grid, the direction of the probe head is consistent with the direction of the air flow at the outlet of the blade grid, the first probe 4 is controlled by the second probe fixing frame 11, the second probe 9 can move along the radial direction between the blade root and the blade top in cooperation with the rotation of the second probe fixing standard frame 11, and then can traverse the whole inlet channel to acquire the flow field data of the whole inlet channel surface, and the second probe 9 can also move along the radial direction between the blade root and the blade top in cooperation with the rotation of the first probe fixing standard frame 8, and then can traverse the whole outlet channel to acquire the flow field data of the whole outlet channel surface in cooperation with the rotation of the first probe fixing standard frame 8.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a fan-shaped cascade import flow field gathers and uses coordinate frame, includes displacement grid board (1), its characterized in that: a lower displacement grid plate (2) is fixedly connected below the upper displacement grid plate (1), two displacement mechanism support frames (3) are slidably connected inside the lower displacement grid plate (2), a first probe (4) and a second probe (9) are respectively arranged inside the two displacement mechanism support frames (3) in a penetrating manner, a first probe fixing base frame (8) and a second probe fixing base frame (11) are respectively arranged at the bottoms of the two displacement mechanism support frames (3), fixing bolts (5) are respectively fixedly connected to one sides of the first probe fixing base frame (8) and the second probe fixing base frame (11), an extension fixing frame is fixedly connected to one side of each fixing bolt (5), a first probe (4) and a second probe (9) are respectively inserted and combined inside the two extension fixing frames, the equal fixedly connected with line direction displacement coordinate guide rail (7) in both sides of first probe fixing seat mark frame (8) and second probe fixing seat mark frame (11), both sides line direction displacement coordinate guide rail (7) respectively with the both sides fixed connection of fixing bolt (5), the inside of fixing bolt (5) is run through and is provided with lead screw (6), the top of displacement grid tray (2) is provided with cascade air outlet (10) down.
2. The coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, wherein: the first probe fixing frame (8) and the second probe fixing frame (11) are used for controlling the rotation of the upper displacement grid plate (1) and the lower displacement grid plate (2) on an X-Y plane.
3. The coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, wherein: the centers of rotation of the second probe fixing seat frame (11) and the first probe fixing seat frame (8) are on the Z axis, and the center of rotation of the upper displacement grid plate (1) is also on the Z axis.
4. The coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, wherein: the first probe (4) is used for collecting a fan-shaped cascade inlet flow field, and the direction of the probe head is consistent with the incoming flow direction of the airflow.
5. The coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, wherein: the second probe (9) is used for collecting a flow field at the outlet of the fan-shaped blade grid, and the direction of the probe head is consistent with the direction of airflow at the outlet of the blade grid.
6. The coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, wherein: the first probe (4) can move between the blade root and the blade top along the radial direction under the control of the second probe fixing standard frame (11), and the whole inlet channel can be traversed by matching the rotation of the second probe fixing standard frame (11), so that the flow field data of the whole inlet channel surface can be acquired.
7. The coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, wherein: the second probe (9) can also move along the radial direction between the blade root and the blade top under the control of the first probe fixing frame (8) and is matched with the rotation of the first probe fixing frame (8), and the second probe (9) can traverse the whole outlet channel and acquire the flow field data of the whole outlet channel surface.
8. The use method of the coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 1, characterized in that: the method comprises the following steps:
the method comprises the following steps: producing a displacement mechanism support frame (3), a second probe fixing base frame (11) and a first probe fixing base frame (8) which meet the requirements according to the acquisition requirements, and installing the displacement mechanism support frame, the second probe fixing base frame and the first probe fixing base frame in a matched manner;
step two: the linear displacement coordinate guide rails (7) are respectively arranged at two sides of one side of a first probe fixing seat frame (8) and one side of a second probe fixing seat frame (11), two ends of the fixing bolts (5) are fixedly arranged above the linear displacement coordinate guide rails (7) at the two sides in a crossing mode, the first probe (4) and the second probe (9) are respectively fixed on the surfaces of the two fixing bolts (5) through extending fixing frames, and the first probe (4) and the second probe (9) are far away from each other;
step three: the method comprises the following steps of producing a lower displacement grid plate (2) and an upper displacement grid plate (1) which are combined into a whole, fixing a probe (10) meeting experimental conditions between the lower displacement grid plate (2) and the upper displacement grid plate (1), installing a first probe (4) on one side of a second probe fixing frame (11) to one side of the lower displacement grid plate (2), and installing a second probe (9) on one side of a first probe fixing frame (8) to the other side of the lower displacement grid plate (2);
step four: two the top of the displacement mechanism support frame (3) penetrates through the two sides of the interior of the lower displacement grid plate (2), and is limited to the inner sliding of the lower displacement grid plate (2), and the radian of the displacement mechanism support frame (3) is adapted to the radian of the lower displacement grid plate (2).
9. The use method of the coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 8, characterized in that: in the first step, the second step and the third step, the first probe fixing seat frame (8) and the second probe fixing seat frame (11) are used for controlling the rotation of the upper displacement grid plate (1) and the lower displacement grid plate (2) on an X-Y plane, the circle center of the upper displacement grid plate (1) is located on a Z axis, and the second probe fixing seat frame (11) and the first probe fixing seat frame (8) rotate by taking the same Z axis as the center.
10. The use method of the coordinate frame for collecting the fan-shaped cascade inlet flow field according to claim 8, characterized in that: the third step comprises the following steps:
step 3.1: collecting fan-shaped cascade inlet flow field data by using a first probe (4) in the third step, and collecting fan-shaped cascade outlet flow field data by using a second probe (9);
step 3.2: and respectively controlling the displacement radians of the first probe (4) and the second probe (9) through the second probe fixing standard frame (11) and the first probe fixing standard frame (8), so that the first probe (4) and the second probe (9) can traverse the whole outlet channel and collect the flow field data of the whole inlet and outlet channel surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111607528.1A CN114370422B (en) | 2021-12-27 | 2021-12-27 | Coordinate frame for collecting fan-shaped blade grid inlet flow field and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837840A (en) * | 2017-01-22 | 2017-06-13 | 大连海事大学 | A kind of fan-shaped cascade experiment system for stator blade aeroperformance research in Non-uniform Currents |
| CN206300685U (en) * | 2016-12-30 | 2017-07-04 | 大连透平机械技术发展有限公司 | Leaf grating runner flow field survey transmission device |
| CN112525478A (en) * | 2020-12-18 | 2021-03-19 | 大连海事大学 | Electric adjustment plane cascade experimental system |
| CN214008739U (en) * | 2020-11-30 | 2021-08-20 | 西安交通大学 | Three-dimensional flexible probe support for probe measurement |
| CN113551695A (en) * | 2021-07-06 | 2021-10-26 | 大连海事大学 | High-precision positioning device and positioning method for five-hole probe |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206300685U (en) * | 2016-12-30 | 2017-07-04 | 大连透平机械技术发展有限公司 | Leaf grating runner flow field survey transmission device |
| CN106837840A (en) * | 2017-01-22 | 2017-06-13 | 大连海事大学 | A kind of fan-shaped cascade experiment system for stator blade aeroperformance research in Non-uniform Currents |
| CN214008739U (en) * | 2020-11-30 | 2021-08-20 | 西安交通大学 | Three-dimensional flexible probe support for probe measurement |
| CN112525478A (en) * | 2020-12-18 | 2021-03-19 | 大连海事大学 | Electric adjustment plane cascade experimental system |
| CN113551695A (en) * | 2021-07-06 | 2021-10-26 | 大连海事大学 | High-precision positioning device and positioning method for five-hole probe |
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