A reliable temperature sensor casing and temperature sensor
By designing a reliable temperature sensor casing, the angle of the detection heat casing is adjusted using the thermal casing assembly, and the design of the sealed rubber sleeve and sealed rubber sleeve plate, the unreliable temperature data caused by the change in the fluid temperature in the pipeline is solved, and the accuracy and reliability of the temperature measurement data are achieved, and fluid leakage is prevented.
Patent Information
- Application Number
- CN202411874531.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2044-12-19
AI Technical Summary
As the process medium may mix unevenly and wall effects, the fluid temperature in the pipe will vary with position, resulting in insufficient immersion length for the thermal sleeve and induction elements to measure the temperature at the center of the pipe, making the induction temperature data unreliable. Simply increasing the immersion length of the thermal sleeve increases the risk of induction components failure due to fluid and pipe vibrations.
A reliable temperature sensor casing is designed. By setting up a thermal casing assembly, the angle between the detection thermal casing and the inner positioning tube is close to 90 degrees. The temperature measuring probe is transferred to the opposite direction of the medium flow with the detection thermal casing, thereby obtaining a representative temperature measurement value at the center of the pipeline. At the same time, through the design of sealed rubber sleeves and sealed rubber sleeves, the sealing of the temperature measurement holes is ensured and fluid leakage is prevented.
It improves the accuracy and reliability of the temperature measurement data of the temperature sensor, prevents induction component failures caused by fluid and pipeline vibration, and effectively prevents fluid leakage inside the pipeline body.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of temperature sensors, and in particular to a sleeve for a reliable temperature sensor and a temperature sensor. Background Art
[0002] Thermowells for temperature sensors are a section of metal tube with closed ends and the sensing element of the temperature sensor installed inside. Thermowells are mainly installed on process containers or pipelines by welding, threading or flange connection. They can protect the temperature sensor from harsh working conditions such as flow-induced stress, high pressure and corrosive chemicals. In addition, thermowells allow the sensor to be easily and conveniently removed for calibration or replacement. Thermowells should be installed in a position that can accurately reflect the process temperature and is convenient for daily maintenance.
[0003] Due to the uneven mixing of process media and wall effects, the fluid temperature in the pipeline will vary with different positions, resulting in insufficient immersion length of the thermowell and the sensing element to measure the temperature at the center of the pipeline, making the sensed temperature data unreliable. If the immersion length of the thermowell is simply increased without changing the immersion angle of the thermowell, the risk of sensing element failure due to excessive fluid and pipeline vibration will increase. Therefore, a reliable temperature sensor sleeve and temperature sensor are proposed. Summary of the invention
[0004] The purpose of the present invention is to solve the problem that the temperature of the fluid in the pipeline varies with different positions due to uneven mixing of process media and wall effects, resulting in insufficient immersion length of the thermowell and the sensing element to measure the temperature at the center of the pipeline, thereby making the sensed temperature data unreliable. If the immersion length of the thermowell is simply increased without changing the immersion angle of the thermowell, the risk of failure of the sensing element due to excessive vibration of the fluid and the pipeline will increase. The present invention provides a reliable temperature sensor sleeve and a temperature sensor.
[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:
[0006] A reliable temperature sensor sleeve comprises a pipe body, on which two symmetrically arranged C-shaped steel rings are sleeved, a fastening half-cylinder is fixedly installed on the top of each of the C-shaped steel rings, a plurality of evenly distributed first assembly holes are opened on the side walls of each of the C-shaped steel rings, a same assembly bolt group is arranged inside two of the first assembly holes located at the same place, a same thermal sleeve assembly is arranged between the two fastening half-cylinders, and a temperature measuring hole adapted to the thermal sleeve assembly is opened on the side wall of the pipe body;
[0007] The thermal sleeve assembly is used to change the direction of the temperature measuring probe of the temperature sensor. The thermal sleeve assembly includes an outer assembly tube arranged between the two fastening half-tubes, a sensor threaded tube is fixedly installed on the top end of the outer assembly tube, the bottom end of the outer assembly tube is located inside the temperature measuring hole and is fixedly installed with an inner positioning tube, the bottom end of the inner positioning tube extends to the inside of the pipeline body and is fixedly installed with a metal bellows, a detection thermal sleeve is fixedly installed on the bottom end of the metal bellows, upper hinged plates are fixedly installed on both sides of the top end of the inner positioning tube, lower hinged plates are fixedly installed on both sides of the top end of the detection thermal sleeve, steering shafts are rotatably installed on the bottom ends of the upper hinged plates, the top ends of the lower hinged plates on the same side are fixedly sleeved on the steering shaft, first control channels are opened inside the tube walls on both sides of the outer assembly tube, second control channels are opened inside the tube walls on both sides of the inner positioning tube, The first control channel and the second control channel are connected to each other, and a control shaft is rotatably installed inside the top end of the first control channel, and control steel strands are fixedly installed on both sides of the steering shaft. The top ends of the two control steel strands on the same side pass through the second control channel and the first control channel in turn and are fixedly installed on both sides of the control shaft respectively. One end of the control shaft extends to the outside of the external assembly tube and a control knob is fixedly installed. A positioning cross groove is provided on the side wall of the control knob, and positioning brackets are fixedly installed on both sides of the external assembly tube. Hand bolts are screwed on the positioning brackets, and a positioning plate is rotatably installed on one end of the hand bolt facing the control knob, and a positioning cross plug block matching the positioning cross groove is fixedly installed on one side of the positioning plate, and a limiting slide bar is fixedly installed on one side of the positioning plate, and the limiting slide bar is slidably installed on the positioning bracket.
[0008] Furthermore, a sealing rubber sleeve is provided inside the two fastening half-cylinders, a sealing rubber sleeve is fixedly installed on the bottom end of the sealing rubber sleeve, the sealing rubber sleeve and the sealing rubber sleeve are both sleeved on the outside of the outer assembly tube, and the side walls of the C-shaped steel ring are provided with avoidance grooves adapted to the sealing rubber sleeve.
[0009] Furthermore, a horizontally arranged positioning rod is fixedly installed on the inner wall of the fastening half-cylinder, sliding holes are provided on both sides of the sealing rubber sleeve, and a positioning telescopic cylinder compatible with the positioning rod is slidably installed inside the sliding hole, and a positioning slot compatible with the positioning telescopic cylinder is provided on both sides of the external assembly tube.
[0010] Furthermore, the C-shaped steel ring includes two small circle plates at the top and a large circle plate at the bottom, the two small circle plates are fixedly installed on both sides of the fastening half-cylinder, and a plurality of the first assembly holes are evenly arranged on the side walls of the two small circle plates and the large circle plate. Two symmetrically spliced C-shaped assembly plates are arranged on one side of the C-shaped steel ring, and a plurality of evenly distributed second assembly holes are arranged on the side walls of the C-shaped assembly plates, and the position distribution of the second assembly holes is consistent with the position distribution of the first assembly holes.
[0011] Furthermore, a C-shaped damping ring is fixedly mounted on the inner ring side wall of the C-shaped assembly plate, and the C-shaped damping ring is sleeved on the pipe body and contacts the outer wall of the pipe body.
[0012] Furthermore, the bottom end of the outer assembly tube is a conical structure, the temperature measuring hole is a bucket-shaped structure adapted to the bottom end of the outer assembly tube, and a bucket-shaped rubber ring is provided between the bottom end side wall of the outer assembly tube and the inner wall of the temperature measuring hole.
[0013] Furthermore, two outer shells are fixedly installed at the bottom of the inner positioning tube, and the two outer shells are respectively fixedly installed on one side of the two upper hinged plates, one end of the steering shaft located on the same side extends to the interior of the outer shell, and the control steel strands are all located inside the outer shell.
[0014] A temperature sensor comprises a temperature sensor using the reliable temperature sensor sleeve of the present invention.
[0015] The beneficial effects of the present invention are as follows:
[0016] 1. The present invention sets a thermowell assembly so that the synchronous rotation of the control knob drives the detection thermowell to rotate until the angle between the detection thermowell and the inner positioning tube approaches ninety degrees. The temperature measuring probe inside the detection thermowell will rotate with the detection thermowell to the direction opposite to the flow direction of the medium, so that the temperature sensor obtains a representative temperature measurement value at the center of the pipeline, thereby improving the accuracy and reliability of the temperature measurement data;
[0017] 2. The present invention provides a sealing rubber sleeve and a sealing rubber sleeve plate, so that when assembling the thermal sleeve assembly, the C-shaped steel ring locks the sealing rubber sleeve and the outer assembly pipe together, and the sealing rubber sleeve plate is pressed by the C-shaped steel rings on both sides at the connection between the pipeline body and the outer assembly pipe, so that the sealing rubber sleeve and the sealing rubber sleeve plate completely cover the temperature measuring hole, play a sealing role, and effectively prevent the leakage of the fluid inside the pipeline body;
[0018] 3. The present invention provides a positioning rod, so that after the C-shaped steel ring is installed, the positioning rod inside the fastening half-tube will be inserted into the positioning telescopic tube on the side wall of the sealing rubber sleeve, so that the C-shaped steel ring can play a positioning role on the external assembly pipe through the cooperation of the positioning rod, the positioning telescopic tube and the positioning slot, thereby preventing the detection thermal sleeve inside the pipeline body from being deflected by the resistance of the medium flow;
[0019] 4. The present invention provides a C-shaped assembly plate, so that after the two C-shaped steel rings are combined, the four C-shaped assembly plates are first assembled by the assembly bolt group, and the small ring plate and the large ring plate are locked together. The separated structure allows the C-shaped steel ring to be divided into two small ring plates and an upper and lower part of a large ring plate when stored, which is convenient for classified storage and reduces the occupied space. At the same time, it is also convenient to separate and remove the C-shaped steel ring from the pipeline body;
[0020] 5. The present invention provides a C-shaped damping ring, so that the C-shaped damping ring is installed on one side of the C-shaped steel ring together with the C-shaped assembly plate. The C-shaped damping ring contacts the side wall of the pipeline body, which not only increases the contact area with the pipeline body, but also can increase the friction between the C-shaped damping ring and the pipeline body by using structures such as the damping coating on the inner wall of the C-shaped damping ring, thereby preventing the C-shaped steel ring from being offset on the pipeline body due to the shaking of the pipeline;
[0021] 6. The present invention provides a bucket-shaped rubber ring so that the conical structure at the bottom end of the external assembly tube and the bucket-shaped structure of the temperature measuring hole on the pipeline body are adapted to each other, thereby improving the tightness of the direct connection between the external assembly tube and the temperature measuring hole. When the external assembly tube is locked by the tightening half-tube, the bucket-shaped rubber ring between the external assembly tube and the temperature measuring hole will be locked in the temperature measuring hole, further improving the sealing of the temperature measuring hole and preventing fluid leakage inside the pipeline body. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the thermowell assembly and the C-shaped steel ring of the present invention;
[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the C-shaped steel ring of the present invention;
[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the thermal sleeve assembly of the present invention;
[0026] Figure 5 The present invention Figure 4 Schematic diagram of the structure at A in the middle;
[0027] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the control channel of the present invention;
[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the steering shaft and the control shaft of the present invention;
[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the positioning bracket and the positioning plate of the present invention;
[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the C-shaped assembly plate and the C-shaped damping ring of the present invention;
[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the sealing rubber sleeve and the sealing rubber sleeve plate of the present invention;
[0032] Reference numerals: 1, pipe body; 2, C-shaped steel ring; 201, small ring plate; 202, large ring plate; 3, fastening half cylinder; 4, first assembly hole; 5, assembly bolt group; 6, outer assembly pipe; 601, first control channel; 602, positioning slot; 7, sensor threaded pipe; 8, inner positioning pipe; 801, second control channel; 9, metal bellows; 10, detection thermal sleeve; 11, upper hinge plate; 12, lower hinge plate; 13, steering shaft; 1 4. Control shaft; 15. Control steel strand; 16. Control knob; 17. Positioning cross slot; 18. Positioning bracket; 19. Thumb bolt; 20. Positioning plate; 21. Positioning cross plug block; 22. Limit slide bar; 23. Sealing rubber sleeve; 24. Sealing rubber sleeve; 25. Positioning plug rod; 26. Positioning telescopic cylinder; 27. Bucket-shaped rubber sleeve; 28. Outer shell; 29. C-shaped assembly plate; 30. Second assembly hole; 31. C-shaped damping ring. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0035] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0036] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0037] like Figures 1 to 10 As shown, a reliable temperature sensor sleeve includes a pipe body 1, as shown in Figure 1 As shown, two symmetrically arranged C-shaped steel rings 2 are sleeved on the pipe body 1. Figure 3 As shown, a fastening half-tube 3 is fixedly installed on the top of the C-shaped steel ring 2, and a plurality of evenly distributed first assembly holes 4 are opened on the side wall of the C-shaped steel ring 2. Figure 2 As shown, the same assembly bolt group 5 is arranged inside the two first assembly holes 4 located at the same place, the same thermal sleeve assembly is arranged between the two fastening half-tubes 3, and a temperature measuring hole adapted to the thermal sleeve assembly is opened on the side wall of the pipeline body 1;
[0038] Thermowell assemblies are used to change the orientation of the temperature sensor probe, such as Figure 2 As shown, the thermal sleeve assembly includes an outer assembly tube 6 disposed between two fastening half-tubes 3, as shown in FIG. Figure 4 As shown, the top of the outer assembly tube 6 is fixedly installed with a sensor threaded tube 7, and the bottom of the outer assembly tube 6 is located inside the temperature measuring hole and is fixedly installed with an inner positioning tube 8, as shown in FIG. Figure 5 As shown, the bottom end of the inner positioning tube 8 extends to the inside of the pipeline body 1 and is fixedly installed with a metal bellows 9, and a detection heat sleeve 10 is fixedly installed at the bottom end of the metal bellows 9. Upper hinged plates 11 are fixedly installed on both sides of the top of the inner positioning tube 8, and lower hinged plates 12 are fixedly installed on both sides of the top of the detection heat sleeve 10. The bottom end of the upper hinged plate 11 is rotatably installed with a steering shaft 13, and the top end of the lower hinged plate 12 on the same side is fixedly sleeved on the steering shaft 13, as shown in FIG. Figure 6 As shown, first control channels 601 are provided inside the tube walls on both sides of the outer assembly tube 6, and second control channels 801 are provided inside the tube walls on both sides of the inner positioning tube 8. The first control channel 601 and the second control channel 801 on the same side are connected to each other, and a control shaft 14 is rotatably installed inside the top end of the first control channel 601, as shown in FIG. Figure 7 As shown, control steel strands 15 are fixedly installed on both sides of the steering shaft 13. The top ends of the two control steel strands 15 on the same side pass through the second control channel 801 and the first control channel 601 in sequence and are fixedly installed on both sides of the control shaft 14. One end of the control shaft 14 extends to the outside of the outer assembly tube 6 and is fixedly installed with a control knob 16. A positioning cross groove 17 is opened on the side wall of the control knob 16. Figure 4 As shown, positioning brackets 18 are fixedly installed on both sides of the outer assembly pipe 6. Figure 8As shown, the positioning bracket 18 is threaded with a hand-tightened bolt 19, and a positioning plate 20 is rotatably installed on one end of the hand-tightened bolt 19 facing the control knob 16. A positioning cross plug 21 that is compatible with the positioning cross groove 17 is fixedly installed on one side of the positioning plate 20. In this embodiment, the positioning cross groove 17 and the positioning cross plug 21 can be changed into a hexagonal, octagonal or other multi-equally divided shape according to actual production needs, so as to facilitate the adjustment of the detection thermal sleeve 10 to other angles. A limiting slide bar 22 is fixedly installed on one side of the positioning plate 20, and the limiting slide bar 22 is slidably installed on the positioning bracket 18; specifically, when the reliable temperature sensor sleeve is used, it is firstly fixed on the pipe body 1 A temperature measuring hole is opened on the side wall, and then the outer assembly tube 6 is placed on the temperature measuring hole, so that the inner positioning tube 8, the metal bellows 9 and the detection thermal sleeve 10 are vertically inserted into the interior of the pipeline body 1. At this time, the bottom end of the outer assembly tube 6 is plugged into the temperature measuring hole, and then the two C-shaped steel rings 2 are sleeved on the pipeline body 1, so that the two fastening half-tubes 3 are combined on both sides of the outer assembly tube 6, and then the assembly bolt group 5 is tightened on each first assembly hole 4 in turn, so that the two C-shaped steel rings 2 lock the outer assembly tube 6 on the pipeline body 1, and the installation of the thermal sleeve assembly is completed. Finally, the temperature measuring probe, converter and signal line of the temperature sensor are placed in the outer assembly tube 6 together, so that the probe and converter are finally inserted into the detection In the thermowell 10, the signal line is located inside the inner positioning tube 8, the metal bellows 9 and other pipes, and then the outer shell of the temperature sensor is screwed to the sensor threaded tube 7 to complete the installation of the temperature sensor. At this time, the temperature measuring probe and the detection thermowell 10 are both located inside the pipe body 1, and the fluid temperature in the pipe body 1 can be detected in real time. By setting the thermowell assembly, after the thermowell assembly and the temperature sensor are installed, the control knobs 16 on both sides of the outer assembly pipe 6 are rotated synchronously, so that the control knobs 16 drive the two control shafts 14 to rotate, and then the steering shaft 13 is pulled by the control steel strands 15 on both sides, so that the steering shaft 13 and the control shaft 14 rotate together. The metal bellows 9 is rotated, thereby driving the lower hinge plate 12 and the detection thermowell 10 to rotate along the axis of the steering shaft 13. At this time, the signal line inside the metal bellows 9 is bent together with the metal bellows 9 until the angle between the detection thermowell 10 and the inner positioning tube 8 approaches ninety degrees. At this time, the hand-tightening bolt 19 is rotated to drive the positioning plate 20 to move toward the control knob 16 until the positioning cross plug 21 is inserted into the positioning cross groove 17 to fix the control shaft 14. The temperature measuring probe inside the detection thermowell 10 will rotate with the detection thermowell 10 to the opposite direction of the medium flow direction, so that the temperature sensor can obtain a representative temperature measurement value at the center of the pipeline, thereby improving the accuracy and reliability of the temperature measurement data.
[0039] like Figure 1 , Fig.10As shown, a sealing rubber sleeve 23 is arranged inside the two fastening half-tubes 3, and a sealing rubber sleeve plate 24 is fixedly installed at the bottom end of the sealing rubber sleeve 23. The sealing rubber sleeve 23 and the sealing rubber sleeve plate 24 are both sleeved on the outside of the outer assembly pipe 6, and the side walls of the C-shaped steel ring 2 are provided with avoidance grooves adapted to the sealing rubber sleeve plate 24. In this embodiment, in addition to adding sealing parts such as the sealing rubber sleeve 23 and the sealing rubber sleeve plate 24, the outer assembly pipe 6 can also be directly welded and sealed with the temperature measuring hole on the pipeline body 1. The specific sealing treatment is selected according to actual needs; specifically, by setting The sealing rubber sleeve 23 and the sealing rubber sleeve plate 24 are arranged so that when assembling the thermal sleeve assembly, the sealing rubber sleeve 23 and the sealing rubber sleeve plate 24 are first sleeved on the outer assembly pipe 6, and then the thermal sleeve assembly and the C-shaped steel ring 2 are assembled, so that the C-shaped steel ring 2 locks the sealing rubber sleeve 23 and the outer assembly pipe 6 together at the same time, and the sealing rubber sleeve plate 24 is pressed by the C-shaped steel rings 2 on both sides at the connection between the pipeline body 1 and the outer assembly pipe 6, so that the sealing rubber sleeve 23 and the sealing rubber sleeve plate 24 completely cover the temperature measuring hole, play a sealing role, and effectively prevent the leakage of the fluid inside the pipeline body 1.
[0040] like Figure 3 As shown, the inner wall of the fastening half cylinder 3 is fixedly mounted with a horizontally arranged positioning rod 25. Fig.10 As shown, sliding holes are provided on both sides of the sealing rubber sleeve 23, and positioning telescopic cylinders 26 adapted to the positioning rods 25 are slidably installed inside the sliding holes. Figure 4 As shown, both sides of the outer assembly tube 6 are provided with positioning slots 602 that are compatible with the positioning telescopic cylinder 26; specifically, by providing a positioning rod 25, after the sealing rubber sleeve 23 is sleeved on the outer assembly tube 6, the relative positions of the two are adjusted and the positioning telescopic cylinders 26 on both sides are pressed to be inserted into the two positioning slots 602 on the outer assembly tube 6 respectively. After the C-shaped steel ring 2 is installed, the positioning rod 25 inside the fastening half tube 3 will be inserted into the positioning telescopic cylinder 26 on the side wall of the sealing rubber sleeve 23, so that the C-shaped steel ring 2 can play a positioning role on the outer assembly tube 6 through the cooperation of the positioning rod 25, the positioning telescopic cylinder 26 and the positioning slot 602, so as to prevent the detection thermal sleeve 10 inside the pipeline body 1 from being deflected by the resistance of the medium flow.
[0041] like Figure 3 As shown, the C-shaped steel ring 2 includes two small ring plates 201 at the top and a large ring plate 202 at the bottom. The two small ring plates 201 are fixedly mounted on both sides of the fastening half cylinder 3. A plurality of first assembly holes 4 are evenly arranged on the side walls of the two small ring plates 201 and the large ring plate 202. Figure 2 As shown, one side of the C-shaped steel ring 2 is provided with two symmetrically spliced C-shaped assembly plates 29, such as Fig. 9As shown, a plurality of evenly distributed second assembly holes 30 are provided on the side walls of the C-shaped assembly plate 29, and the position distribution of the second assembly holes 30 is consistent with the position distribution of the first assembly holes 4; specifically, by setting the C-shaped assembly plate 29, after the two C-shaped steel rings 2 are merged, the four C-shaped assembly plates 29 are first symmetrically spliced in pairs and placed on one side of the two fastening half-cylinders 3 in sequence, and then the assembly bolt group 5 is screwed in sequence on each of the spliced first assembly holes 4 and the second assembly holes 30, so that the small circle plate 201 and the large circle plate 202 are locked together. The separate structure allows the C-shaped steel ring 2 to be divided into two small circle plates 201 and a large circle plate 202 in upper and lower parts during storage, which is convenient for classified storage and reduces the occupied space. It is also convenient to separate and remove the C-shaped steel ring 2 from the pipe body 1.
[0042] like Fig. 9 As shown, a C-shaped damping ring 31 is fixedly installed on the inner ring side wall of the C-shaped assembly plate 29, and the C-shaped damping ring 31 is sleeved on the pipe body 1 and contacts the outer wall of the pipe body 1. In this embodiment, the side of the C-shaped damping ring 31 in contact with the pipe body 1 can be coated with a damping coating to increase the damping coefficient between the C-shaped damping ring 31 and the pipe body 1; specifically, by setting the C-shaped damping ring 31, after the C-shaped steel ring 2 is assembled, the C-shaped damping ring 31 is installed on one side of the C-shaped steel ring 2 together with the C-shaped assembly plate 29, and a total of four C-shaped damping rings 31 on both sides are covered on the pipe body 1 and contact the side wall of the pipe body 1, which not only increases the contact area with the pipe body 1, but also can use the damping coating on the inner wall of the C-shaped damping ring 31 and other structures to increase the friction between the C-shaped damping ring 31 and the pipe body 1, so as to prevent the C-shaped steel ring 2 from being offset on the pipe body 1 due to the shaking of the pipe.
[0043] like Figure 4 As shown, the bottom end of the outer mounting tube 6 is in a conical structure, the temperature measuring hole is in a bucket-shaped structure matched with the bottom end of the outer mounting tube 6, and a bucket-shaped rubber sleeve 27 is arranged between the bottom end side wall of the outer mounting tube 6 and the inner wall of the temperature measuring hole; specifically, by arranging the bucket-shaped rubber sleeve 27, the conical structure at the bottom end of the outer mounting tube 6 and the bucket-shaped structure of the temperature measuring hole on the pipeline body 1 are adapted to each other, which can improve the tightness of the direct connection between the outer mounting tube 6 and the temperature measuring hole. When the outer mounting tube 6 is locked by the tightening half tube 3, the bucket-shaped rubber sleeve 27 between the outer mounting tube 6 and the temperature measuring hole will be locked in the temperature measuring hole, thereby further improving the sealing of the temperature measuring hole and preventing the fluid inside the pipeline body 1 from leaking.
[0044] like Figure 5 , Figure 6As shown, two outer shells 28 are fixedly installed at the bottom of the inner positioning tube 8, and the two outer shells 28 are respectively fixedly installed on one side of the two upper hinged plates 11, and one end of the steering shaft 13 located on the same side extends to the inside of the outer shell 28, and the control steel strands 15 are all located inside the outer shell 28; specifically, by setting the outer shell 28, the outer shell 28 will protect the tail end of the control steel strand 15 and the connection between the control steel strand 15 and the steering shaft 13 inside, preventing the moving fluid from directly impacting the control steel strand 15, thereby reducing the influence of the fluid movement in the pipeline on the transmission of the control steel strand 15.
[0045] A temperature sensor includes a temperature sensor using the reliable temperature sensor sleeve of the present invention.
[0046] In summary: when the reliable temperature sensor sleeve is used, a temperature measuring hole is first opened on the side wall of the pipeline body 1, and then the outer assembly tube 6 is placed on the temperature measuring hole, so that the inner positioning tube 8, the metal bellows 9 and the detection thermal sleeve 10 are vertically inserted into the interior of the pipeline body 1. At this time, the bottom end of the outer assembly tube 6 and the temperature measuring hole are plugged into each other, and then the two C-shaped steel rings 2 are sleeved on the pipeline body 1, so that the two fastening half-tubes 3 are combined on both sides of the outer assembly tube 6, and then the assembly bolt group 5 is tightened on each first assembly hole 4 in turn, so that the two C-shaped steel rings 2 lock the outer assembly tube 6 on the pipeline body 1, and the installation of the thermal sleeve assembly is completed. Finally, the temperature measuring probe, converter and signal line of the temperature sensor are placed in the outer assembly tube 6 together, so that the probe and converter are most Finally, the temperature sensor is inserted into the detection thermowell 10, and the signal line is located inside the inner positioning tube 8, the metal bellows 9 and other pipelines. Then, the outer shell of the temperature sensor is screwed with the sensor threaded tube 7 to complete the installation of the temperature sensor. At this time, the temperature measuring probe and the detection thermowell 10 are both located inside the pipeline body 1, and the fluid temperature in the pipeline body 1 can be detected in real time. By setting the thermowell assembly, after the thermowell assembly and the temperature sensor are installed, the control knobs 16 on both sides of the outer assembly tube 6 are rotated synchronously, so that the control knobs 16 drive the two control shafts 14 to rotate, and then the steering shaft 13 is pulled by the control steel strands 15 on both sides, so that the steering shaft 13 and the control shaft 14 rotate together, thereby driving the lower hinged plate 12 and the detection thermowell 1 0 rotates along the axis of the steering shaft 13. At this time, the signal line inside the metal bellows 9 is bent together with the metal bellows 9 until the angle between the detection thermal sleeve 10 and the inner positioning tube 8 approaches ninety degrees. At this time, the hand-tightening bolt 19 is rotated to drive the positioning plate 20 to move toward the control knob 16 until the positioning cross plug 21 is inserted into the positioning cross groove 17 to fix the control shaft 14. The temperature measuring probe inside the detection thermal sleeve 10 will rotate with the detection thermal sleeve 10 to the opposite direction of the medium flow direction, so that the temperature sensor obtains a representative temperature measurement value at the center of the pipeline, improving the accuracy and reliability of the temperature measurement data. By setting the sealing rubber sleeve 23 and the sealing rubber sleeve plate 24, when assembling the thermal sleeve assembly, the sealing rubber sleeve 2 is first installed. 3 and the sealing rubber sleeve 24 are sleeved on the outer assembly pipe 6, and then the thermal sleeve assembly and the C-shaped steel ring 2 are assembled, so that the C-shaped steel ring 2 locks the sealing rubber sleeve 23 and the outer assembly pipe 6 together, and the sealing rubber sleeve 24 is pressed by the C-shaped steel rings 2 on both sides at the connection between the pipeline body 1 and the outer assembly pipe 6, so that the sealing rubber sleeve 23 and the sealing rubber sleeve 24 completely cover the temperature measuring hole, which plays a sealing role and effectively prevents the leakage of the fluid inside the pipeline body 1. By setting the positioning plug rod 25, after the sealing rubber sleeve 23 is sleeved on the outer assembly pipe 6, the relative positions of the two are adjusted and the positioning telescopic cylinders 26 on both sides are pressed to be inserted into the two positioning slots 602 on the outer assembly pipe 6 respectively. After the C-shaped steel ring 2 is installed,The positioning rod 25 inside the fastening half-tube 3 will be inserted into the positioning telescopic tube 26 on the side wall of the sealing rubber sleeve 23, so that the C-shaped steel ring 2 can play a positioning role on the external assembly pipe 6 through the cooperation of the positioning rod 25, the positioning telescopic tube 26 and the positioning slot 602, so as to prevent the detection heat sleeve 10 inside the pipeline body 1 from being deflected by the resistance of the medium flow. By setting the C-shaped assembly plate 29, after the two C-shaped steel rings 2 are combined, the four C-shaped assembly plates 29 are first symmetrically spliced in pairs and successively placed on one side of the two fastening half-tubes 3, and then the assembly The bolt group 5 is screwed in sequence on the first assembly hole 4 and the second assembly hole 30 that are assembled together, so that the small circle plate 201 and the large circle plate 202 are locked together. The separated structure allows the C-shaped steel ring 2 to be divided into two small circle plates 201 and an upper and lower part of a large circle plate 202 when stored, which is convenient for classified storage and reduces the occupied space. It is also convenient to separate and remove the C-shaped steel ring 2 from the pipeline body 1. By setting the C-shaped damping ring 31, after the C-shaped steel ring 2 is assembled, the C-shaped damping ring 31 is installed on the C-shaped steel ring together with the C-shaped assembly plate 29. On one side of the ring 2, a total of four C-shaped damping rings 31 on both sides are covered on the pipeline body 1 and contact the side wall of the pipeline body 1, which not only increases the contact area with the pipeline body 1, but also can use the damping coating on the inner wall of the C-shaped damping ring 31 and other structures to increase the friction between the C-shaped damping ring 31 and the pipeline body 1, so as to prevent the C-shaped steel ring 2 from deviating on the pipeline body 1 due to the shaking of the pipeline. By setting the bucket-shaped rubber sleeve 27, the conical structure at the bottom end of the external assembly pipe 6 and the bucket-shaped structure of the temperature measuring hole on the pipeline body 1 are adapted to each other, which can improve the external assembly. The tightness of the direct connection between the tube 6 and the temperature measuring hole. When the outer assembly tube 6 is locked by the fastening half tube 3, the bucket-shaped rubber ring 27 between the outer assembly tube 6 and the temperature measuring hole will be locked in the temperature measuring hole, further improving the sealing of the temperature measuring hole and preventing the fluid inside the pipeline body 1 from leaking. By setting the outer shell 28, the outer shell 28 will protect the tail end of the control steel strand 15 and the connection between the control steel strand 15 and the steering shaft 13 inside, preventing the moving fluid from directly impacting the control steel strand 15, and reducing the influence of the fluid movement in the pipeline on the transmission of the control steel strand 15.
[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.
Claims
1. A reliable temperature sensor sleeve, characterized in that: The invention comprises a pipeline body (1), wherein two symmetrically arranged C-shaped steel rings (2) are sleeved on the pipeline body (1), a fastening half-cylinder (3) is fixedly mounted on the top of each of the C-shaped steel rings (2), a plurality of evenly distributed first assembly holes (4) are provided on the side walls of each of the C-shaped steel rings (2), a same assembly bolt group (5) is provided inside two of the first assembly holes (4) located at the same position, a same thermal sleeve assembly is provided between the two fastening half-cylinders (3), and a temperature measuring hole compatible with the thermal sleeve assembly is provided on the side walls of the pipeline body (1); The thermowell assembly is used to change the orientation of the temperature sensor temperature measuring probe. The thermowell assembly comprises an outer assembly tube (6) arranged between the two fastening half-tubes (3). A sensor threaded tube (7) is fixedly mounted on the top of the outer assembly tube (6). The bottom end of the outer assembly tube (6) is located inside the temperature measuring hole and is fixedly mounted with an inner positioning tube (8). The bottom end of the inner positioning tube (8) extends into the interior of the pipeline body (1) and is fixedly mounted with a metal bellows (9). The bottom end of the metal bellows (9) is fixedly mounted with a detection thermowell (10). Upper hinged plates (11) are fixedly installed on both sides of the top end, lower hinged plates (12) are fixedly installed on both sides of the top end of the detection heat sleeve (10), a steering shaft (13) is rotatably installed on the bottom end of the upper hinged plate (11), the top end of the lower hinged plate (12) located on the same side is fixedly sleeved on the steering shaft (13), the inside of the tube wall on both sides of the outer assembly tube (6) is provided with a first control channel (601), the inside of the tube wall on both sides of the inner positioning tube (8) is provided with a second control channel (801), the first control channel (601) and the second control channel (801) located on the same side are connected to each other. The control holes (801) are interconnected, a control shaft (14) is rotatably mounted inside the top end of the first control hole (601), control steel strands (15) are fixedly mounted on both sides of the steering shaft (13), the top ends of the two control steel strands (15) on the same side pass through the second control hole (801) and the first control hole (601) in sequence and are fixedly mounted on both sides of the control shaft (14), one end of the control shaft (14) extends to the outside of the outer assembly tube (6) and is fixedly mounted with a control knob (16), and the side wall of the control knob (16) A positioning cross slot (17) is provided on the outer assembly tube (6), positioning brackets (18) are fixedly installed on both sides of the outer assembly tube (6), and hand-tightening bolts (19) are screwed on the positioning brackets (18), and a positioning plate (20) is rotatably installed on one end of the hand-tightening bolt (19) facing the control knob (16), and a positioning cross plug (21) adapted to the positioning cross slot (17) is fixedly installed on one side of the positioning plate (20), and a limiting slide bar (22) is fixedly installed on one side of the positioning plate (20), and the limiting slide bar (22) is slidably installed on the positioning bracket (18).
2. A reliable temperature sensor sleeve according to claim 1, characterized in that: A sealing rubber sleeve (23) is arranged inside the two fastening half-cylinders (3), a sealing rubber sleeve plate (24) is fixedly mounted on the bottom end of the sealing rubber sleeve (23), the sealing rubber sleeve (23) and the sealing rubber sleeve plate (24) are both sleeved on the outside of the outer assembly tube (6), and a sidewall of the C-shaped steel ring (2) is provided with an avoidance groove adapted to the sealing rubber sleeve plate (24).
3. A reliable temperature sensor sleeve according to claim 2, characterized in that: A horizontally arranged positioning rod (25) is fixedly mounted on the inner wall of the fastening half-cylinder (3), sliding holes are provided on both sides of the sealing rubber sleeve (23), and a positioning telescopic cylinder (26) adapted to the positioning rod (25) is slidably mounted inside the sliding hole, and a positioning slot (602) adapted to the positioning telescopic cylinder (26) is provided on both sides of the external assembly tube (6).
4. A reliable temperature sensor sleeve according to claim 2, characterized in that: The C-shaped steel ring (2) comprises two small ring plates (201) located at the top and a large ring plate (202) located at the bottom, the two small ring plates (201) are fixedly mounted on both sides of the fastening half cylinder (3), a plurality of the first assembly holes (4) are evenly arranged on the side walls of the two small ring plates (201) and the large ring plate (202), one side of the C-shaped steel ring (2) is provided with two symmetrically spliced C-shaped assembly plates (29), the side walls of the C-shaped assembly plates (29) are each provided with a plurality of evenly distributed second assembly holes (30), the position distribution of the second assembly holes (30) being consistent with the position distribution of the first assembly holes (4).
5. A reliable temperature sensor sleeve according to claim 4, characterized in that: A C-shaped damping ring (31) is fixedly mounted on the inner ring side wall of the C-shaped assembly plate (29); the C-shaped damping ring (31) is sleeved on the pipe body (1) and contacts the outer wall of the pipe body (1).
6. A reliable temperature sensor sleeve according to claim 1, characterized in that: The bottom end of the outer assembly tube (6) is in a conical structure, the temperature measuring hole is in a bucket-shaped structure adapted to the bottom end of the outer assembly tube (6), and a bucket-shaped rubber sleeve ring (27) is provided between the side wall of the bottom end of the outer assembly tube (6) and the inner wall of the temperature measuring hole.
7. A reliable temperature sensor sleeve according to claim 1, characterized in that: Two outer shells (28) are fixedly mounted on the bottom of the inner positioning tube (8), and the two outer shells (28) are respectively fixedly mounted on one side of the two upper hinged plates (11), and one end of the steering shaft (13) located on the same side extends into the interior of the outer shell (28), and the control steel strands (15) are all located inside the outer shell (28).
8. A temperature sensor, characterized in that: A temperature sensor comprising the reliable temperature sensor sleeve according to any one of claims 1 to 7.
Citation Information
Patent Citations
Thermocouple installation structure
CN108917956A
Embedded temperature measurement sensing structure and temperature measurement method
CN114563092A