Insertion-depth-adjustable temperature measurement sensor for pipeline

Abstract

The embodiment of the utility model discloses an insertion-depth-adjustable temperature measurement sensor for a pipeline, which comprises a sensor body and a mounting kit, and a probe is arranged at one end of the sensor body; the mounting kit is provided with a hollow axial channel, and the probe penetrates through the axial channel and can axially move in the axial channel; a mounting part communicated with the interior of the pipeline is arranged on the pipe wall of the pipeline, one end, away from the sensor body, of the mounting kit is mounted on the mounting part, and an axial channel of the mounting kit is communicated with the interior of the pipeline. When the temperature measurement sensor is installed in pipelines of different specifications, the sensor body is operated to move axially along the axial channel, namely, the end, far away from the sensor body, of the probe is adjusted to be located in the pipeline to adjust the insertion depth position, and the temperature measurement sensor can meet the detection requirements of the pipelines of different specifications. The temperature measuring sensor can meet the requirements of the liquid oxygen kerosene rocket engine test bed on the diversity and interchangeability of the temperature measuring sensor, and has the advantages of reducing the number of spare parts and saving the use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature testing, in particular to an insertion depth-adjustable temperature measuring sensor for a pressure pipeline. Background Art

[0002] At present, on liquid oxygen-kerosene rocket engine test benches, temperature sensors are often installed on pressure pipes that transport test media to monitor the temperature of the transported media. The temperature sensor probe is usually inserted into the 1 / 3 to 1 / 2 of the pipe diameter inside the pipe to eliminate the influence of the external environment on the medium temperature and obtain a more accurate medium temperature. In actual use, due to the different installation positions of the temperature sensors and the pipe specifications, the detection position of the temperature sensor after being inserted into the pipe will change, that is, it cannot be well inserted into the range of 1 / 3 to 1 / 2 of the pipe diameter, resulting in detection errors in the medium temperature.

[0003] To solve the above problems, the prior art customizes temperature sensors with corresponding insertion depths according to different pipeline specifications to meet the use requirements. As a result, the temperature sensors used on the test bench have a wide variety of insertion depth specifications and poor interchangeability. When customizing spare parts, temperature sensors of each specification must be prepared.

[0004] Therefore, there is a need for a new temperature sensor that can meet the liquid oxygen-kerosene rocket engine test bench's requirements for temperature sensor diversity and interchangeability, reduce the number of spare parts, and save usage costs. Utility Model Content

[0005] The utility model aims to provide a temperature measuring sensor with adjustable insertion depth for pipelines, aiming to solve the problem that the existing single temperature measuring sensor cannot adapt to the detection requirements of pipelines of different specifications.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] The utility model provides an insertion depth-adjustable temperature measuring sensor for a pipeline, comprising: a sensor body, a mounting kit, wherein a probe is arranged at one end of the sensor body; the mounting kit is provided with a hollow axial channel, the probe passes through the axial channel and can move axially in the axial channel; a pipe wall of the pipeline is provided with a mounting portion connected to the interior of the pipeline, and an end of the mounting kit away from the sensor body is mounted on the mounting portion.

[0008] Further, the probe is threadedly connected to the axial channel.

[0009] Furthermore, the installation kit includes a first kit and a second kit; the first kit and the second kit are connected to form an installation cavity located in the axial channel at the connection, and a deformable part is installed in the installation cavity, and the deformable part is used to deform and clamp the probe when the first kit and the second kit are connected.

[0010] Furthermore, the first set and the second set are threadedly connected in the axial direction; the deformable member comprises an annular compression sleeve and an elastic sealing ring with deformation capability;

[0011] When the first set is threadedly connected to the second set, the first set is used to squeeze the annular pressing sleeve, so as to drive the annular pressing sleeve to squeeze the elastic sealing ring.

[0012] Furthermore, the diameter of the installation cavity is reduced toward the second set.

[0013] Furthermore, a threaded section is provided on the outer wall of the probe, a locking nut is threadedly connected to the threaded section, and the locking nut is locked toward one end of the installation kit close to the sensor body.

[0014] Furthermore, one end of the second set away from the first set is inserted into the mounting portion.

[0015] Furthermore, one end of the second assembly away from the first assembly is threadedly connected to the mounting portion.

[0016] Furthermore, a sealing gasket is provided between the connection between the second kit and the mounting portion.

[0017] Furthermore, the outer wall of the probe is provided with scale lines exposed to the outside.

[0018] Compared with the prior art, the utility model has the following beneficial effects: when the temperature sensor is installed in pipelines of different specifications, the sensor body is operated to move axially along the axial channel, that is, the end of the probe away from the sensor body is adjusted to be located in the pipeline for insertion depth adjustment, which can adapt to the detection needs of pipelines of different specifications. It can meet the requirements of the liquid oxygen-kerosene rocket engine test bench for the diversity and interchangeability of temperature sensors, and has the advantages of reducing the number of spare parts and saving the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1A schematic diagram of the cross-sectional structure of a temperature measuring sensor with adjustable insertion depth for a pipeline provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the partial structure of a temperature measuring sensor with adjustable insertion depth for a pipeline provided by an embodiment of the utility model;

[0022] Diagram:

[0023] 10. Sensor body; 101. Probe; 102. Scale line;

[0024] 20. Installation kit; 201. Locking nut; 202. First kit; 203. Annular sleeve; 204. Elastic sealing ring; 205. Second kit; 2051. Shaft shoulder; 206. Sealing pad; 207. Axial channel; 208. Installation cavity;

[0025] 30. Pipe; 301. Mounting portion; 302. Reinforcement member. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0028] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0029] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0030] See also Figure 1 and Figure 2The embodiment of the utility model discloses a temperature measuring sensor with adjustable insertion depth for a pipeline, including a sensor body 10 and a mounting kit 20. A probe 101 is arranged at one end of the sensor body 10; the mounting kit 20 is provided with a hollow axial channel 207, and the probe 101 passes through the axial channel 207 and can move axially in the axial channel 207; a pipe wall of a pipe 30 is provided with a mounting portion 301 connected to the interior of the pipe 30, and an end of the mounting kit 20 away from the sensor body 10 is mounted on the mounting portion 301, and the axial channel 207 of the mounting kit 20 is connected to the interior of the pipe 30.

[0031] In this embodiment, the sensor body 10 and the probe 101 constitute a probe 101 type sensor, and the end of the probe 101 away from the sensor body 10 is located in the pipe 30 for temperature measurement; the installation kit 20 is used as a carrier for the axial movement of the probe 101, and a hollow axial channel 207 is provided on the installation kit 20. After the installation kit 20 is installed on the installation part 301, the axial channel 207 can be connected with the inside of the pipe 30 through the installation part 301; based on this, the probe 101 can reach the inside of the pipe 30 after passing through the axial channel 207; and after the probe 101 is axially moved in the axial channel 207, the end of the probe 101 away from the sensor body 10 can be located at different depths in the pipe 30. That is, when the temperature measuring sensor of this embodiment is installed in pipes 30 of different specifications, the sensor body 10 is operated and adjusted to move axially along the axial channel 207, that is, the end of the probe 101 away from the sensor body 10 is adjusted to be located in the pipe 30 for insertion depth adjustment, which can adapt to the detection requirements of pipes 30 of different specifications. The invention can meet the requirements of the liquid oxygen-kerosene rocket engine test bench for the diversity and interchangeability of temperature measuring sensors, and has the advantages of reducing the number of spare parts and saving the use cost.

[0032] In one embodiment, the probe 101 is threadedly connected to the axial passage 207 .

[0033] In this embodiment, an external thread may be provided at one end of the probe 101 close to the sensor body 10, and an internal thread may be provided at a corresponding position in the axial channel 207; of course, an internal thread may be provided on the probe 101, and an external thread may be provided in the axial channel 207; in this way, the probe 101 can be operated to rotate to move axially in the axial channel 207, thereby realizing the depth adjustment after the probe 101 is inserted into the pipe 30.

[0034] The tight engagement between the threads ensures the stability and reliability of the connection, and the threaded connection is more convenient to adjust, which can be achieved by simply rotating, without the need for special tools, and is also easy to maintain and replace.

[0035] In one embodiment, the installation kit 20 includes a first kit 202 and a second kit 205; the first kit 202 and the second kit 205 are connected and form an installation cavity 208 located in the axial channel 207 at the connection, and a deformable member is installed in the installation cavity 208, which is used to deform and clamp the probe 101 when the first kit 202 and the second kit 205 are connected.

[0036] In this embodiment, the first kit 202 and the second kit 205 are both structures with hollow channels, and the two hollow channels after the first kit 202 and the second kit 205 are connected form an axial channel 207; specifically, the first kit 202 and / or the second kit 205 can be a screw sleeve with a thread on the inner wall, so as to cooperate with the thread on the outer wall of the probe 101; preferably, the inner wall of the first kit 202 is provided with a thread, which is more convenient for cooperating with the thread at one end of the probe 101 close to the sensor body 10.

[0037] In this embodiment, a connecting port is provided at the lower end of the first kit 202 (the end connected to the second kit 205), and the upper end of the second kit 205 (the end connected to the first kit 202) is installed on the connecting port, thereby realizing the connection between the first kit 202 and the second kit 205; wherein, a cavity is opened on the upper end face of the second kit 205 along the radial direction of the hollow channel, and after the second kit 205 is connected to the first kit 202, the cavity and the connecting port can form an installation cavity 208 at the connection.

[0038] In this embodiment, the deformable part can fill the entire installation cavity 208. The tighter the connection between the first kit 202 and the second kit 205 is, the smaller the space of the installation cavity 208 will be, thereby compressing the deformable part in the installation cavity 208. The probe 101 penetrates the axial channel 207 and the deformable part at the same time. The compressed deformable part will block the axial channel 207 to prevent the medium in the pipeline 30 from leaking upward from the axial channel 207. At the same time, the compressed deformable part will also clamp the probe 101 to maintain the stability of the probe 101.

[0039] In one embodiment, the first kit 202 and the second kit 205 are threadedly connected in the axial direction; the deformable part includes an annular pressing sleeve 203 and an elastic sealing ring 204 with deformation ability; the first kit 202 is used to extrude the annular pressing sleeve 203 when the first kit 202 is threadedly connected to the second kit 205, so as to link the annular pressing sleeve 203 to extrude the elastic sealing ring 204.

[0040] In this embodiment, a threaded structure that matches each other can be provided on the inner wall of the connection port at the lower end of the first set 202 and the outer wall of the upper end of the second set 205, and the upper end of the second set 205 can be screwed into the connection port to achieve connection, that is, the tighter the threaded connection between the first set 202 and the second set 205, the smaller the space of the installation cavity 208. Based on this, the deformable member can be accommodated in the cavity port at the upper end of the second set 205, the elastic sealing ring 204 of the deformable member is completely located in the cavity port, and the annular pressing sleeve 203 is located in the cavity port and partially extends out of the cavity port (that is, the part of the annular pressing sleeve 203 extending out of the cavity port is in the connection port), so that when the first set 202 and the second set 205 are screwed in the axial direction, the space of the installation cavity 208 can be reduced (that is, the space in the axial direction is shortened), and the annular pressing sleeve 203 is first squeezed in the axial direction, and the annular pressing sleeve 203 squeezes the elastic sealing ring 204, so that the elastic sealing ring 204 is deformed and contracted, thereby blocking the axial channel 207 and clamping the probe 101.

[0041] In one embodiment, the diameter of the installation cavity 208 is reduced toward the second assembly 205 .

[0042] In this embodiment, the deformable member is deformed when the first kit 202 and the second kit 205 are screwed together, and is also deformed in the direction of the second kit 205. Therefore, the diameter of the installation cavity 208 is reduced in the direction of the second kit 205. In a specific implementation method, the cavity opening at the upper end of the second kit 205 can be set to a cone shape, and the elastic sealing ring 204 can also be set to a cone shape with a matching shape. The center of the elastic sealing ring 204 is provided with a cylindrical hole for the probe 101 to pass through. In this way, when the elastic sealing ring 204 is subjected to axial compression, due to limited space, the elastic sealing ring 204 is deformed inwardly, and the cylindrical hole in the center can firmly clamp the outer wall of the probe 101, and the outer conical surface is tightly fitted with the cavity opening at the upper end of the second kit 205 to block the axial channel 207, so that the medium in the pipeline 30 cannot leak out through the axial channel 207.

[0043] In one embodiment, a threaded section is disposed on the outer wall of the probe 101 , and a locking nut 201 is threadedly connected to the threaded section. The locking nut 201 is locked toward one end of the installation kit 20 close to the sensor body 10 .

[0044] In this embodiment, a sufficiently long threaded structure is reserved on the outer wall of the probe 101, the lower section of the threaded structure is used for threaded connection with the axial channel 207, and the upper section is located at one end close to the sensor body 10 and located outside the first kit 202; the locking nut 201 is pre-installed in the probe 101 and is located at one end of the probe 101 close to the sensor body 10. After the probe 101 is threadedly adjusted and inserted into the axial channel 207, the locking nut 201 is threadedly connected to the upper section of the threaded structure and pressed against the first kit 202, which can ensure that the probe 101 is locked in the axial channel 207 to prevent axial movement.

[0045] In one embodiment, one end of the second assembly 205 away from the first assembly 202 is threadedly connected to the mounting portion 301 .

[0046] In this embodiment, the mounting portion 301 can be integrally formed on the outer wall of the pipe 30, or can be separately installed on the outer wall of the pipe 30. A reinforcing member 302 can also be provided at the connection between the mounting portion 301 and the pipe 30 to ensure the stability of the connection. The pipe wall of the pipe 30 is provided with a wall hole, and the mounting portion 301 can be a hollow columnar structure and the hollow position corresponds to the wall hole, that is, the interior of the pipe 30 can be connected through the mounting portion 301; based on this, the end of the second set 205 away from the first set 202 is threadedly connected to the hollow position of the mounting portion 301, so that the axial channel 207 can be connected to the interior of the pipe 30, so that the probe 101 can enter the interior of the pipe 30 along the axial channel 207 and adjust the insertion depth.

[0047] In one embodiment, a sealing gasket 206 is provided between the connection between the second set 205 and the mounting portion 301 .

[0048] In this embodiment, a shoulder 2051 may be provided on the outer wall of the second kit 205. After the second kit 205 is threadedly connected to the mounting portion 301, the shoulder 2051 and the mounting portion 301 are tightly abutted. To prevent leakage of the medium from the connection, a sealing gasket 206 is provided between the shoulder 2051 and the mounting portion 301. The sealing gasket 206 may be an annular gasket. The sealing gasket 206 is sleeved on one end of the second kit 205 away from the first kit 202. After the second kit 205 is threadedly connected to the mounting portion 301, the sealing gasket 206 is sleeved between the shoulder 2051 and the mounting portion 301, thereby preventing leakage of the medium.

[0049] In one embodiment, the outer wall of the probe 101 is provided with scale lines 102 exposed to the outside.

[0050] In this embodiment, the scale lines 102 exposed to the outside can assist in judging the insertion depth of the probe 101 in the pipe 30, and the adjustment status can be clearly and intuitively read and judged when the probe 101 is operated to adjust the insertion depth, thereby ensuring the accuracy and reliability of the measurement result. Specifically, the outer wall of one end of the probe 101 close to the sensor body 10 can be milled and the scale lines 102 can be set on the milled surface.

[0051] The pipeline 30 described above is provided with an adjustable insertion depth temperature measuring sensor.

[0052] In a specific installation scenario, first, the locking nut 201, the locking nut 201, the first set 202, and the annular pressing sleeve 203 are sequentially put on the probe 101, so that the probe 101 is slightly screwed into the hollow channel of the first set 202 (here the probe 101 and the first set 202 are threadedly connected), and then the locking nut 201 is slightly tightened and pressed against the first set 202, so that the probe 101 can be initially stabilized.

[0053] Then, the elastic sealing ring 204 is placed in the cavity at the upper end of the second sleeve 205 .

[0054] Then, the probe 101 is passed through the elastic sealing ring 204 and through the hollow channel of the second set 205, and the first set 202 and the second set 205 are slightly tightened to form a mounting cavity 208. At this time, the annular pressing sleeve 203 and the elastic sealing ring 204 are located in the mounting cavity 208, but have not been compressed.

[0055] Then, the end of the second set 205 away from the first set 202 is threadedly connected to the mounting portion 301, and the probe 101 is allowed to enter the interior of the pipe 30 through the mounting portion 301, and the installation is completed.

[0056] Finally, by loosening or tightening the locking nut 201 and the tightness between the first sets 202 and the first sets 202, the probe 101 can be fixed or loosened to perform an insertion depth adjustment operation.

[0057] Based on this, the utility model of the temperature sensor with adjustable insertion depth for the pipeline 30 has the characteristics of simple structure, simple operation, low process cost, and simple operation. It effectively solves the limitation that one temperature sensor can only correspond to one specification of the pipeline 30 in the past, reduces the number of spare parts of the temperature sensor, and thus avoids the problem of high resource consumption.

[0058] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A temperature sensor with adjustable insertion depth for pipeline, characterized in that: include: A sensor body and an installation kit, wherein a probe is provided at one end of the sensor body; the installation kit is provided with a hollow axial channel, the probe passes through the axial channel and can move axially in the axial channel; the pipe wall of the pipe is provided with a mounting portion connected to the interior of the pipe, the end of the installation kit away from the sensor body is installed on the mounting portion, and the axial channel of the installation kit is connected to the interior of the pipe.

2. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 1, characterized in that: The probe is threadedly connected to the axial passage.

3. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 1, characterized in that: The installation kit includes a first kit and a second kit; the first kit and the second kit are connected to form an installation cavity located in the axial channel at the connection, and a deformable member is installed in the installation cavity. The deformable member is used to deform and clamp the probe when the first kit and the second kit are connected.

4. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 3, characterized in that: The first set and the second set are threadedly connected in the axial direction; the deformable member comprises an annular compression sleeve and an elastic sealing ring with deformation capability; The first set is used to compress the annular pressing sleeve when the first set is threadedly connected to the second set, so as to drive the annular pressing sleeve to compress the elastic sealing ring.

5. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 3, characterized in that: The diameter of the installation cavity is reduced toward the second set.

6. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 2, characterized in that: The outer wall of the probe is provided with a threaded section, and a locking nut is threadedly connected to the threaded section. The locking nut is locked toward one end of the installation kit close to the sensor body.

7. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 3, characterized in that: One end of the second set away from the first set is inserted into the mounting portion.

8. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 7, characterized in that: One end of the second set away from the first set is threadedly connected to the mounting portion.

9. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 7, characterized in that: A sealing gasket is provided between the connection between the second set and the mounting portion.

10. The temperature measuring sensor with adjustable insertion depth for pipeline according to claim 7, characterized in that: The outer wall of the probe is provided with scale lines exposed to the outside.

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