A pipeline structure for detecting vacuum degree in a rotating drum of a fluid device, a fluid device structure and a vacuum degree detection method thereof

Abstract

The present invention relates to the field of fluid machinery technology, and specifically to a pipeline structure for vacuum detection in a drum of fluid equipment, a fluid equipment structure and a vacuum detection method thereof, wherein the pipeline structure comprises: a double-layer pipeline structure, which comprises a pipeline inner core and a pipeline outer shell which are coaxial inside and outside and have a gap therebetween, the double-layer pipeline structure is provided with a measuring point port and an air hole structure connected to the gap along the axial direction, the double-layer pipeline structure is equipped with a material support arm connected to the pipeline inner core for supplying and removing materials; a vacuum measurement support arm, which is assembled on the outside of the air hole structure of the double-layer pipeline structure, and the vacuum measurement support arm comprises a vacuum probe and an adjustment structure for adjusting the radial position of the vacuum probe. The present invention can realize vacuum pressure detection at different radial and axial positions of the drum, can greatly improve the experimental level of fluid state detection inside the drum, and has important significance for both theoretical research and efficiency improvement.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid machinery, and in particular to a pipeline structure for detecting the vacuum degree in a drum of fluid equipment, a fluid equipment structure and a vacuum degree detection method thereof. Background Art

[0002] A special fluid equipment includes a pipeline, a drum and a protective sleeve. The pipeline is located in the center of the drum to realize the supply and removal of materials. The drum rotates at high speed in the protective sleeve to realize a certain pressure distribution state of the material on the inner wall of the drum. The pressure distribution of the material along the axial and radial directions of the drum has a significant impact on the production efficiency. Realizing the pressure measurement at different radial positions on the inner wall of the drum can provide good guidance for improving the theoretical research level and production efficiency.

[0003] The difficulty in solving the above technical problems lies in: since the drum outlet is small and the pipeline is a thin-walled tube structure, the pressure at different radial positions in the drum can only be measured through the side wall of the pipeline. In order to ensure sufficiently high measurement accuracy, the cross-sectional area of ​​the vacuum measurement hole must be large enough. Therefore, it is quite difficult. How to accurately measure the pressure at different radial and axial positions in the drum is still a technical problem that needs to be solved urgently.

[0004] The significance of solving the above technical problems lies in: designing a pipeline structure for detecting the vacuum degree in the drum of fluid equipment has important practical significance. Summary of the invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a pipeline structure for vacuum detection in a drum of a fluid device, a fluid device structure and a vacuum detection method thereof, which can realize vacuum pressure detection at different radial and axial positions of the drum.

[0006] The technical solution adopted by the present invention to solve this problem is:

[0007] A pipeline structure for detecting vacuum degree in a drum of a fluid device, comprising:

[0008] A double-layer pipeline structure, comprising a pipeline inner core and a pipeline outer shell, which are coaxial inside and outside and have a gap therebetween, the double-layer pipeline structure is provided with a measuring point port and an air hole structure connected to the gap in the axial direction, and the double-layer pipeline structure is equipped with a material support arm connected to the pipeline inner core for supplying and taking out materials;

[0009] The vacuum degree measuring support arm is assembled on the outer side of the air hole structure of the double-layer pipeline structure, and the vacuum degree measuring support arm comprises a vacuum probe and an adjusting structure for adjusting the radial position of the vacuum probe.

[0010] Preferably, a pipe joint is formed on the head end of the pipe inner core.

[0011] Further preferably, the axial length of the pipe inner core is greater than the axial length of the pipe outer jacket, the pipe outer jacket is sleeved on the outside of the pipe inner core in a closed and surrounding manner, and both the pipe inner core and the pipe outer jacket are high-strength and non-magnetic metal pipes.

[0012] Further preferably, the head end of the pipe jacket is provided with an opening structure opposite to the measuring point port, and a plurality of pore structures are provided on the pipe jacket at axial positions corresponding to the vacuum degree to be measured in the drum.

[0013] Further preferably, a threaded structure is provided on the outer wall of the pipe jacket.

[0014] Further preferably, the double-layer pipe structure is provided with fixing pins.

[0015] Further preferably, the vacuum measuring arm extends radially along the rotating drum, and the vacuum measuring arm also includes a fixed seat assembled on the outside of the pipe jacket, the fixed seat is installed corresponding to the position of the pore structure, and forms an annular cavity between the fixed seat and the pipe jacket, and the gap, pore structure, annular cavity and vacuum measuring arm together constitute a measuring channel.

[0016] Further preferably, the adjustment structure comprises a flexible connecting tube arranged between the fixing seat and the vacuum probe, and the vacuum probe is provided with a measuring hole.

[0017] The second inventive object of the present invention is to provide a fluid equipment structure, including a pipeline, a rotating drum and a protective sleeve, wherein the rotating drum rotates at a high speed in the protective sleeve to achieve material separation, and the pipeline is located at the center of the rotating drum to achieve material supply and removal, and the pipeline is the above-mentioned pipeline structure for vacuum detection in the rotating drum of the fluid equipment.

[0018] The third invention object of the present invention is to provide a method for detecting the vacuum degree of a fluid equipment structure using the pipeline structure for detecting the vacuum degree in a rotating drum of the fluid equipment as described above, comprising the following steps:

[0019] S101: The drum rotates at high speed in the protective sleeve to separate materials. The double-layer pipeline structure is located on the central axis of the drum, and the supply and removal of materials of the fluid equipment are realized through the inner core of the pipeline and the material support arm;

[0020] S102: The gap, the pore structure, the annular cavity and the vacuum degree measurement arm together constitute a measurement channel, so that the vacuum pressure at the position where the vacuum probe is located can be detected through the measuring point port;

[0021] S103: When it is necessary to detect the vacuum pressure at different radial positions of the drum, the radial position of the vacuum probe can be adjusted by adjusting the structure; when it is necessary to detect the vacuum pressure at different axial positions of the drum, the position of the vacuum degree measuring arm along the axial direction of the double-layer pipe structure can be changed.

[0022] The advantages and positive effects of the present invention are:

[0023] 1. The present invention can be used to detect the vacuum pressure at different radial positions of the drum, and by changing the position of the detection structure along the axial direction, the vacuum pressure detection at different axial positions of the drum can be achieved.

[0024] 2. The use of a pipeline structure for vacuum detection in a drum of fluid equipment proposed in the present invention can greatly improve the experimental level of fluid state detection inside the drum, which is of great significance for both theoretical research and efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but it should be understood that these drawings are designed only for explanation purposes and are not intended to limit the scope of the present invention. In addition, unless otherwise specified, these drawings are intended only to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

[0026] Figure 1 is a cross-sectional view of Example 1 of the present invention;

[0027] Figure 2 It is a simplified structural diagram of Example 2 of the present invention.

[0028] In the figure: 1-pipeline; 2-rotating drum; 3-protective cover; 11-pipeline joint; 12-pipeline inner core; 13-pipeline outer cover; 131-threaded structure; 132-pore structure; 14-fixing pin; 15-material support arm; 16-vacuum degree measurement support arm; 161-fixing seat; 162-flexible connecting pipe; 163-vacuum probe; 1631-measuring hole. DETAILED DESCRIPTION

[0029] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of example, but all descriptions are only for illustration and should not be understood as limiting the present invention in any way. In addition, any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature displayed or implied in the drawings, can still be combined or deleted between these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this document. In addition, in order to simplify the drawings, the same or similar technical features may be marked only in one place in the same drawing.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The present invention is described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1:

[0032] A pipeline structure for detecting the vacuum degree in a drum of a fluid device comprises: a double-layer pipeline structure, which comprises a pipeline inner core 12 and a pipeline outer sleeve 13 which are coaxial inside and outside and have a gap therebetween, the double-layer pipeline structure is axially provided with a measuring point port and an air hole structure which are connected to the gap, the double-layer pipeline structure is equipped with a material support arm 15 which is connected to the pipeline inner core 12 and is used for supplying and removing materials; a vacuum degree measuring support arm 16 which is assembled on the outer side of the air hole structure of the double-layer pipeline structure, the vacuum degree measuring support arm 16 comprises a vacuum probe 163 and an adjusting structure for adjusting the radial position of the vacuum probe 163.

[0033] In this embodiment, the double-layer pipeline structure is located on the central axis of the drum 2, and the material supply and removal function can be realized through the pipeline core 12 and the material support arm 15. Figure 1 As shown, the measuring point port, the gap 17, the pore structure 132 and the vacuum probe 163 of the vacuum measuring arm 16 are connected in sequence, and the vacuum pressure at the position of the vacuum probe 163 can be detected through the measuring point port. The radial position of the vacuum probe 163 can be adjusted by adjusting the structure to detect the vacuum pressure at different radial positions of the drum, and the vacuum pressure detection at different axial positions of the drum can be realized by changing the axial position of the vacuum measuring arm 16 along the double-layer pipeline structure. By using this pipeline structure, pressure measurement at different axial and radial positions in the drum can be realized, which can greatly improve the experimental level of fluid state detection inside the drum, and has important significance for theoretical research and efficiency improvement.

[0034] Furthermore, in this embodiment, it can also be considered that the head end of the pipe inner core 12 is formed with a pipe joint 11, and the pipe joint 11 is used for connecting the fluid device with an external pipe.

[0035] Furthermore, in this embodiment, it can also be considered that the axial length of the pipe core 12 is greater than the axial length of the pipe jacket 13, and the pipe jacket 13 is arranged on the outside of the pipe core 12 in a closed and surrounding manner. Preferably, the pipe core 12 and the pipe jacket 13 are fixed together by welding or bonding, and other parts except the measuring point port and the pore structure are closed.

[0036] Furthermore, in the present embodiment, it can also be considered that the pipe core 12 and the pipe jacket 13 are both high-strength and non-magnetic metal pipes. The pipe core 12 and the pipe jacket 13 constitute a double-layer pipe structure, and both are made of high-strength and non-magnetic metal materials so that after the gap between the pipe core 12 and the pipe jacket 13 is increased, the entire pipe still has sufficient strength.

[0037] Furthermore, in this embodiment, it can also be considered that the head end of the pipe jacket 13 is provided with an opening structure opposite to the measuring point port, and the pipe jacket 13 is provided with a plurality of pore structures 132 at axial positions corresponding to the vacuum degree to be measured in the drum.

[0038] Furthermore, in this embodiment, it can also be considered that a threaded structure 131 is provided on the outer wall of the pipeline jacket 13 for fixing the pipeline to the external system.

[0039] Furthermore, in this embodiment, it can also be considered that the double-layer pipeline structure is provided with a fixing pin 14, such as Figure 1 As shown, a fixing pin 14 is provided on the pipe inner core 12 for mounting and positioning other components on the pipe.

[0040] In this embodiment, the pipeline structure specifically includes: a pipeline inner core 12, a pipeline outer sleeve 13, a pipeline joint 11 arranged on the pipeline inner core 12 for connecting the fluid equipment with the external pipeline, a fixing pin 14 arranged on the pipeline inner core 12 for installing and positioning other components on the pipeline, a material support arm 15 arranged on the pipeline inner core 12 for supplying and removing materials from the fluid equipment, and a vacuum measurement support arm 16.

[0041] Furthermore, in the present embodiment, it is also possible to consider that a plurality of air holes 132 structures are provided on the pipe jacket 13 at axial positions corresponding to the axial positions where the vacuum degree needs to be measured in the drum 2, so as to connect the gap 17 between the pipe inner core 12 and the pipe jacket 13 with the vacuum degree measurement arm 16, thereby realizing the function of externalizing the vacuum degree measurement point.

[0042] Furthermore, in the present embodiment, it can also be considered that the vacuum measuring arm 16 also includes a fixing seat 161 mounted on the outside of the pipe jacket 13, and the fixing seat 161 is installed corresponding to the position of the pore structure 132, and forms an annular cavity 18 between the fixing seat 161 and the pipe jacket 13, so that the gap 17, the pore structure 132, the annular cavity 18 and the vacuum measuring arm 16 together constitute a measuring channel.

[0043] Furthermore, in this embodiment, the adjustment structure may include a flexible connecting tube 162 disposed between the fixing seat 161 and the vacuum probe 163, and the vacuum probe 163 is provided with a measuring hole 1631. The vacuum degree measuring arm 16 extends in the radial direction of the drum.

[0044] In this embodiment, the vacuum degree measuring arm 16 is composed of a fixed seat 161, a flexible connecting tube 162 and a vacuum probe 163. The fixed seat 161 is located at a corresponding position of the air holes 132 of the pipeline jacket 13, and the annular cavity 18 between the fixed seat 161 and the pipeline jacket 13 is used to connect the air holes 132. The flexible connecting tube 162 is located between the fixed seat 161 and the vacuum probe 163, and is used to adjust the radial position of the vacuum probe 163 to meet the measurement requirements of the vacuum degree at different radial positions.

[0045] It should be noted that: with the help of the telescopic performance of the flexible connecting tube 162, not only can the measurement requirements of vacuum degrees at different radial positions be met, but it can also play a sealing role when the vacuum probe is adjusted. There are many telescopic driving methods, which are existing technologies and will not be repeated here.

[0046] Embodiment 2:

[0047] A fluid equipment structure using the pipeline structure for vacuum degree detection in Example 1 comprises a pipeline 1, a drum 2 and a protective sleeve 3. The drum 2 rotates at high speed in the protective sleeve 3 to achieve material separation. The pipeline 1 is located at the center of the drum 2 to achieve material supply and removal. The pipeline is the pipeline structure for vacuum degree detection in Example 1. The pipeline structure can be used to measure pressures at different axial and radial positions in the drum 2, which can greatly improve the experimental level of fluid state detection inside the drum, and is of great significance to theoretical research and efficiency improvement.

[0048] Embodiment 3:

[0049] A method for detecting the vacuum degree of a fluid device structure in Embodiment 2 comprises the following steps:

[0050] S101: The drum 2 rotates at high speed in the protective sleeve 3 to achieve material separation. The double-layer pipeline structure is located on the central axis of the drum 2, and the supply and removal of fluid equipment materials are achieved through the pipeline core 12 and the material support arm 15;

[0051] S102: The gap 17, the pore structure 132, the annular cavity 18 and the vacuum degree measuring arm 16 together constitute a measuring channel, so that the vacuum pressure at the position where the vacuum probe 163 is located can be detected through the measuring point port;

[0052] S103: When it is necessary to detect the vacuum pressure at different radial positions of the drum, the radial position of the vacuum probe 163 can be adjusted by adjusting the structure; when it is necessary to detect the vacuum pressure at different axial positions of the drum, the axial position of the vacuum measuring arm 16 along the double-layer pipe structure can be changed.

[0053] The above embodiments describe the present invention in detail, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A pipeline structure for detecting vacuum degree in a drum of a fluid device, characterized in that: include: A double-layer pipeline structure, comprising a pipeline inner core (12) and a pipeline outer shell (13) which are coaxial inside and outside and have a gap therebetween, the double-layer pipeline structure is provided with a measuring point port and an air hole structure connected to the gap along the axial direction, the double-layer pipeline structure is equipped with a material support arm (15) connected to the pipeline inner core (12) for supplying and removing materials, the head end of the pipeline outer shell (13) is provided with an opening structure opposite to the measuring point port, and the pipeline outer shell (13) is provided with a plurality of air hole structures (132) at axial positions corresponding to the vacuum degree to be measured in the drum; A vacuum degree measuring support arm (16) is mounted on the outside of the pore structure of the double-layer pipeline structure. The vacuum degree measuring support arm (16) comprises a vacuum probe (163) and an adjustment structure for adjusting the radial position of the vacuum probe (163). The vacuum degree measuring support arm (16) further comprises a fixing seat (161) mounted on the outside of the pipeline jacket (13). The fixing seat (161) is mounted at a position corresponding to the pore structure (132) and forms an annular cavity (18) with the pipeline jacket (13). The gap, the pore structure (132), the annular cavity (18) and the vacuum degree measuring support arm (16) together constitute a measuring channel. The adjustment structure comprises a flexible connecting pipe (162) arranged between the fixing seat (161) and the vacuum probe (163). The vacuum probe (163) is provided with a measuring hole (1631).

2. A pipeline structure for detecting vacuum degree in a drum of fluid equipment according to claim 1, characterized in that: A pipe joint (11) is formed at the head end of the pipe inner core (12).

3. The pipeline structure for detecting vacuum degree in a drum of fluid equipment according to claim 1, characterized in that: The axial length of the pipeline inner core (12) is greater than the axial length of the pipeline outer shell (13), and the pipeline outer shell (13) is sleeved on the outer side of the pipeline inner core (12) in a closed and surrounding manner.

4. The pipeline structure for detecting vacuum degree in a drum of fluid equipment according to claim 1, characterized in that: A thread structure (131) is provided on the outer wall of the pipeline jacket (13).

5. The pipeline structure for detecting vacuum degree in a drum of fluid equipment according to claim 1, characterized in that: The double-layer pipeline structure is provided with a fixing pin (14).

6. A fluid equipment structure, comprising a pipeline (1), a rotating drum (2) and a protective sleeve (3), wherein the rotating drum (2) rotates at a high speed in the protective sleeve (3) to achieve material separation, and the pipeline (1) is located at the center of the rotating drum (2) to achieve material supply and removal, characterized in that: The pipeline is a pipeline structure for detecting the vacuum degree in a drum of a fluid device as described in any one of claims 1 to 5.

7. A method for detecting the vacuum degree of a fluid equipment structure using a pipeline structure for detecting the vacuum degree in a drum of a fluid equipment as claimed in claim 1, characterized in that: The following steps are involved: S101: The drum (2) rotates at high speed in the protective sleeve (3) to achieve material separation. The double-layer pipeline structure is located on the central axis of the drum (2), and the supply and removal of materials of the fluid equipment are achieved through the pipeline inner core (12) and the material support arm (15); S102: The gap (17), the pore structure (132), the annular cavity (18), and the vacuum degree measurement support arm (16) together constitute a measurement channel, so that the vacuum pressure at the location of the vacuum probe (163) is detected through the measurement point port; S103: When it is necessary to detect the vacuum pressure at different radial positions of the drum, the radial position of the vacuum probe (163) is adjusted by adjusting the structure; when it is necessary to detect the vacuum pressure at different axial positions of the drum, the axial position of the vacuum degree measuring arm (16) is changed along the double-layer pipe structure.

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