High-temperature-resistant and anti-corrosion temperature sensor
By using quartz casing and protective rubber sleeve structure in the temperature sensor, the problem of insulating layer damage caused by wire bending is solved, and high-temperature corrosion protection and durability are achieved.
Patent Information
- Application Number
- CN202422588525.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-10-25
AI Technical Summary
During use, the PT100 temperature sensor is frequently bent between the wire and the metal tube, resulting in damage to the insulation layer and affecting the life of the equipment.
A quartz casing is used as a protective casing to wrap the inspection core rod, and a protective rubber sleeve is installed at the connection between the conductor and the installation tube, and the limit pipe and the connecting sleeve are used for bending protection to reduce the bending angle of the conductor.
Effectively protect the sensor probe, prevent high-temperature corrosion, avoid damage to the conductor insulation layer, and improve equipment durability.
Smart Images
Figure CN223216992U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of temperature sensors, and specifically relates to a temperature sensor with high temperature resistance and corrosion prevention. Background Technique
[0002] The PT100 temperature sensor is a resistive temperature sensor made of platinum (Pt). Its working principle is to utilize the temperature characteristics of the platinum resistor, that is, the resistance value of the platinum resistor changes with the temperature. Specifically, the resistance value of the PT100 at 0°C is 100 ohms, and there is a certain relationship between its resistance value and temperature, which can be expressed by the following formula: when -200°C < t < 0°C, Rt = R0[1 + At + Bt2 + C(t - 100)t3]; when 0°C ≤ t < 850°C, Rt = R0(1 + At + Bt2). Here, Rt is the resistance value at temperature t, R0 is the resistance value at 0°C, and A, B, and C are constants. In practical applications, the PT100 temperature sensor is usually used in combination with a precision bridge circuit. By measuring the resistance value of the PT100, the temperature of the environment or object can be determined;
[0003] When the above temperature sensor is actually used, at this time, a signal transmission wire is arranged inside the mounting tube at the top of the temperature sensor. The wire is soft in texture, and the mounting tube is a metal tube. During the use of the temperature sensor, the wire and the metal tube are frequently bent. When the bending angle is too large, the outer insulating layer of the wire is likely to be damaged, resulting in equipment damage. Content of the Utility Model
[0004] The purpose of the utility model is to provide a temperature sensor with high temperature resistance and corrosion prevention, so as to solve the defect that the wire is soft in texture, the mounting tube is a metal tube, during the use of the temperature sensor, the wire and the metal tube are frequently bent, and when the bending angle is too large, the outer insulating layer of the wire is likely to be damaged mentioned in the above background technique.
[0005] To achieve the above purpose, a temperature sensor with high temperature resistance and corrosion prevention is provided, including a mounting tube. A wire is inserted and installed inside the mounting tube. A stress seat is fixedly installed at the bottom of the mounting tube. At the same time, a screw connection cylinder is fixedly installed at the bottom of the stress seat. And a detection core rod is fixedly installed at one end of the screw connection cylinder away from the stress seat. A protective sleeve is wrapped outside the detection core rod. A protective rubber sleeve is arranged at the connection between the wire and the mounting tube. The protective rubber sleeve includes a connection sleeve wrapped outside the end of the mounting tube. And a transition tube is fixedly installed at the top of the connection sleeve. At the same time, a limiting tube is fixedly arranged at one end of the transition tube away from the connection sleeve.
[0006] Preferably, the protective sleeve is a quartz sleeve, and the protective sleeve is sleeved outside the detection core rod in a concentric circle structure.
[0007] Preferably, four groups of mounting holes are evenly opened on the outer side of the top of the protective sleeve, and four groups of screw holes are evenly opened on the upper side of the circumferential surface of the detection core rod. At the same time, the fixing screws pass through the mounting holes opened on the protective sleeve and are screwed into the screw holes opened on the surface of the detection core rod.
[0008] Preferably, the connection between the wire and the mounting tube is bent and protected by a protective rubber sleeve, and the cross-section of the protective rubber sleeve is circular.
[0009] Preferably, the position limiting tube is wrapped around the outside of the conductor, and the position limiting tube is fixedly connected to the connecting sleeve through a transition tube, and the cross section of the transition tube is an isosceles trapezoid.
[0010] Preferably, a plurality of groups of bending openings are evenly provided on the circumferential outer wall of the limiting tube, and the bending openings are arranged in a rectangular shape. At the same time, a plurality of groups of bending openings are evenly provided on the circumferential outer wall of the connecting sleeve.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. The utility model sets a protective sleeve on the outside of the detection core rod. The protective sleeve is a quartz sleeve, which is a high-temperature and corrosion-resistant material and can withstand temperatures of up to thousands of degrees. It also has good chemical stability and does not react to most chemical substances. It can effectively protect the temperature sensor probe and achieve the purpose of high-temperature and corrosion resistance of the temperature sensor.
[0013] 2. The utility model provides a protective rubber sleeve at the connection between the wire and the mounting tube. The connection between the wire and the mounting tube is protected by the protective rubber sleeve. When the wire is bent during installation or use, the setting of the limit tube and the connecting sleeve can protect the wire and the mounting tube, reduce the bending angle of the wire, and avoid frequent bending operations of the wire when in use, which may cause damage to the outer insulation layer of the wire. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view schematic diagram of the structure of the utility model;
[0015] Figure 2 for Figure 1 Schematic diagram of the cross section of the protective sleeve and protective rubber sleeve;
[0016] Figure 3 for Figure 2 Side view of
[0017] Figure 4 Schematic diagram of the cross section of the protective rubber sleeve;
[0018] Figure 5 Schematic diagram of the cross section of the protective casing.
[0019] Numbers in the figure: 1. Wire; 2. Mounting tube; 3. Force seat; 4. Screw-on tube; 5. Detection core rod; 6. Protective sleeve; 61. Mounting hole; 7. Protective rubber sleeve; 71. Limiting tube; 72. Transition tube; 73. Connecting sleeve; 74. Bending mouth. DETAILED DESCRIPTION
[0020] See also Figure 1-5 The utility model provides a high-temperature resistant and corrosion-resistant temperature sensor, including a mounting tube 2, a wire 1 is inserted into the interior of the mounting tube 2, and a force-bearing seat 3 is fixedly installed at the bottom of the mounting tube 2, and a screw-connected tube 4 is fixedly installed at the bottom of the force-bearing seat 3, and a detection core rod 5 is fixedly installed at the end of the screw-connected tube 4 away from the force-bearing seat 3, and a protective sleeve 6 is wrapped around the outside of the detection core rod 5. A protective rubber sleeve 7 is provided at the connection between the wire 1 and the mounting tube 2, and the protective rubber sleeve 7 includes a connecting sleeve 73 wrapped around the outside of the end of the mounting tube 2, and a transition tube 72 is fixedly installed on the top of the connecting sleeve 73, and a limiting tube 71 is fixedly provided at the end of the transition tube 72 away from the connecting sleeve 73.
[0021] As can be seen from the above, when in use, the protective sleeve 6 is first sleeved and fixed on the outside of the detection core rod 5. At this time, four groups of mounting holes 61 are evenly opened on the outside of the top of the protective sleeve 6, and four groups of screw holes are evenly opened on the upper side of the circumferential surface of the detection core rod 5. The fixing screws pass through the mounting holes 61 opened on the protective sleeve 6 and are screwed into the inside of the screw holes opened on the surface of the detection core rod 5; the protective sleeve 6 and the detection core rod 5 are fixedly connected by four groups of screws. At this time, the detection core rod 5 is inserted into the inside of the medium to be tested. A protective sleeve 6 is provided on the outside of the detection core rod 5. The protective sleeve 6 is a quartz sleeve, which is a high-temperature resistant and corrosion-resistant material and can withstand high temperatures of up to thousands of degrees; and has good chemical stability, does not react to most chemical substances, can effectively protect the temperature sensor probe, and achieve the purpose of high-temperature and corrosion resistance of the temperature sensor.
[0022] As a preferred embodiment, the protective sleeve 6 is a quartz sleeve, and the protective sleeve 6 is sleeved on the outer side of the detection core rod 5 to form a concentric circle structure.
[0023] As a preferred embodiment, four groups of mounting holes 61 are evenly opened on the outer side of the top of the protective sleeve 6, and four groups of screw holes are evenly opened on the upper side of the circumferential surface of the detection core rod 5. At the same time, the fixing screws pass through the mounting holes 61 opened on the protective sleeve 6 and are screwed into the screw holes opened on the surface of the detection core rod 5.
[0024] As a preferred embodiment, the connection between the wire 1 and the mounting tube 2 is bent and protected by a protective rubber sleeve 7, and the cross-section of the protective rubber sleeve 7 is circular.
[0025] As can be seen from the above, when in use, a protective rubber sleeve 7 is provided at the connection between the wire 1 and the mounting tube 2, and the connection between the wire 1 and the mounting tube 2 is bent and protected by the protective rubber sleeve 7. When the wire 1 is being installed or in use, it is bent. At this time, the setting of the limiting tube 71 and the connecting sleeve 73 can protect the wire 1 and the mounting tube 2, reduce the bending angle of the wire 1, and avoid frequent bending operations of the wire 1 when in use, which may cause damage to the outer insulation layer of the wire 1. When the limiting tube 71 is bent under force, multiple groups of bending openings 74 are evenly opened on the circumferential outer wall of the limiting tube 71, and the internal space of the bending opening 74 is squeezed, thereby reducing the force on the wire 1 when it is bent.
[0026] As a preferred embodiment, the limiting tube 71 is wrapped around the outside of the conductor 1, and the limiting tube 71 is fixedly connected to the connecting sleeve 73 through the transition tube 72, and the cross section of the transition tube 72 is an isosceles trapezoid.
[0027] As a preferred embodiment, multiple groups of bending openings 74 are evenly opened on the circumferential outer wall of the limiting tube 71 , and the bending openings 74 are rectangular. At the same time, multiple groups of bending openings 74 are evenly opened on the circumferential outer wall of the connecting sleeve 73 .
[0028] Working principle: When in use, first, the protective sleeve 6 is sleeved and fixed on the outside of the detection core rod 5. At this time, four groups of mounting holes 61 are evenly opened on the outside of the top of the protective sleeve 6, and four groups of screw holes are evenly opened on the upper side of the circumferential surface of the detection core rod 5. The fixing screws pass through the mounting holes 61 opened on the protective sleeve 6 and are screwed into the screw holes opened on the surface of the detection core rod 5; the protective sleeve 6 and the detection core rod 5 are fixedly connected by four groups of screws. At this time, the detection core rod 5 is inserted into the inside of the medium to be tested. The outside of the detection core rod 5 is provided with a protective sleeve 6. The protective sleeve 6 is a quartz sleeve, which is a high-temperature resistant and corrosion-resistant material. It can withstand high temperatures of up to thousands of degrees; it has good chemical stability, does not react to most chemical substances, and can effectively protect the temperature sensor. The probe of the device is used to achieve the purpose of high-temperature corrosion resistance of the temperature sensor; at the same time, a protective rubber sleeve 7 is provided at the connection between the wire 1 and the mounting tube 2, and the connection between the wire 1 and the mounting tube 2 is bent by the protective rubber sleeve 7. When the wire 1 is installed or in use, it is bent. At this time, the setting of the limiting tube 71 and the connecting sleeve 73 can protect the wire 1 and the mounting tube 2, reduce the bending angle of the wire 1, and avoid frequent bending operations of the wire 1 when in use, which may cause damage to the outer insulation layer of the wire 1. When the limiting tube 71 is bent under force, multiple groups of bending openings 74 are evenly opened on the circumferential outer wall of the limiting tube 71, and the internal space of the bending opening 74 is squeezed, thereby reducing the force on the wire 1 when it is bent.
[0029] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A high temperature resistant and corrosion resistant temperature sensor, comprising a mounting tube (2), characterized in that: The inside of the installation tube (2) is interspersed with a wire (1), and a force-bearing seat (3) is fixedly installed at the bottom of the installation tube (2). At the same time, a screw-on tube (4) is fixedly installed at the bottom of the force-bearing seat (3), and a detection core rod (5) is fixedly installed at one end of the screw-on tube (4) away from the force-bearing seat (3). The outer side of the detection core rod (5) is wrapped with a protective sleeve (6). A protective rubber sleeve (7) is provided at the connection between the wire (1) and the installation tube (2). The protective rubber sleeve (7) includes a connecting sleeve (73) wrapped around the outer side of the end of the installation tube (2), and a transition tube (72) is fixedly installed on the top of the connecting sleeve (73). At the same time, a limiting tube (71) is fixedly provided at one end of the transition tube (72) away from the connecting sleeve (73).
2. The high temperature resistant and corrosion resistant temperature sensor according to claim 1, characterized in that: The protective sleeve (6) is a quartz sleeve, and the protective sleeve (6) is sleeved on the outside of the detection core rod (5) to form a concentric circle structure.
3. The high temperature resistant and corrosion resistant temperature sensor according to claim 2, characterized in that: Four groups of mounting holes (61) are evenly formed on the outer side of the top of the protective sleeve (6), and four groups of screw holes are evenly formed on the upper side of the circumferential surface of the detection core rod (5). At the same time, fixing screws pass through the mounting holes (61) formed on the protective sleeve (6) and are screwed into the screw holes formed on the surface of the detection core rod (5).
4. The high temperature resistant and corrosion resistant temperature sensor according to claim 1, characterized in that: The connection between the wire (1) and the installation tube (2) is bent and protected by a protective rubber sleeve (7), and the cross section of the protective rubber sleeve (7) is circular.
5. The high temperature resistant and corrosion resistant temperature sensor according to claim 1, characterized in that: The position limiting tube (71) is wrapped around the outside of the wire (1), and the position limiting tube (71) is fixedly connected to the connecting sleeve (73) through the transition tube (72), and the cross section of the transition tube (72) is arranged in an isosceles trapezoidal shape.
6. The high temperature resistant and corrosion resistant temperature sensor according to claim 1, characterized in that: The circumferential outer wall of the position limiting tube (71) is evenly provided with a plurality of bending openings (74), and the bending openings (74) are rectangular. Meanwhile, the circumferential outer wall of the connecting sleeve (73) is evenly provided with a plurality of bending openings (74).