Multifunctional temperature measuring device
By introducing in-place display meter and remote junction box into the temperature measurement device, and using flexible support tubes and telescopic sheaths, the impact of equipment vibration and high temperature environment on the junction box is solved, and the accurate transmission of temperature measurement signals is achieved and real-time. Monitoring improves the reliability and accuracy of the system.
Patent Information
- Application Number
- CN202421137816.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The junction boxes of existing temperature measurement points are easily affected by equipment vibration during installation, resulting in unstable signal transmission, and long-term high-temperature environments lead to oxidation of terminals, resulting in misalignment of measurement, and lack of on-site display meter, which leads to difficulty in error in time. Discover.
Design a multifunctional temperature measuring device, using an on-site display meter and a remote junction box to connect the temperature sensor at the same time, to slow down the vibration influence through a flexible support tube, and protect the signal line through a telescopic sheath to avoid high temperature environments, and achieve accurate signal transmission. and real-time monitoring.
It improves the reliability and accuracy of the temperature measurement system, extends the service life of the equipment, can detect signal deviations in time, ensures the accuracy of the measurement system, and improves the stability of the production process through real-time alarms and automatic control.
Smart Images
Figure CN222318231U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of industrial equipment operation and maintenance tools, in particular to a multifunctional temperature measuring device. Background Art
[0002] In recent years, with the popularization of production automation, intelligence and centralized control, temperature measurement systems have been widely used. The temperature measurement points of the prior art are all a type of graduated thermocouple or a type of thermal resistor, and the measurement signal is transmitted remotely to the central control room. When the temperature measurement point is installed, the junction box of the measurement point and the remote signal line are hard-connected, and the vibration of the installation base is directly transmitted to the junction box. The severe vibration will damage the wiring board and the terminal in the junction box, affecting the signal transmission effect. In addition, the junction box is close to the measurement point, resulting in the internal terminal oxidation caused by the junction box being in a high temperature environment for a long time, resulting in inaccurate temperature measurement due to changes in contact resistance of the terminal. In addition, since there is no display meter at the on-site measurement point, the measurement error cannot be discovered in time, and the large error of the temperature measurement system may cause the equipment (system) to fail to operate normally, and in serious cases, cause unsafe incidents. Utility Model Content
[0003] The purpose of the utility model is to provide a multifunctional temperature measuring device to solve the problems existing in the prior art.
[0004] The purpose of the utility model is achieved as follows: A multifunctional temperature measuring device, comprising two temperature sensors respectively connected to a local display meter and a remote junction box, the temperature sensors are each fixed on a mounting base, the mounting base comprises a base fixed on the equipment and a supporting sleeve installed on the base, the temperature sensor comprises a connecting wire, a temperature detection head is connected to the lower end of the connecting wire, the temperature detection head passes through the supporting sleeve and the base and extends into the interior of the equipment, a flexible supporting tube is arranged on the outer sleeve of the connecting wire, one end of the flexible supporting tube is detachably connected to the supporting sleeve, and the other end is detachably connected to the local display meter or the remote junction box.
[0005] The multifunctional temperature measuring device of the utility model can realize that the temperature data of the medium in the equipment is simultaneously displayed on the local temperature display meter and the DCS system in the central control room by simultaneously setting the local display instrument and the remote junction box at the same temperature measuring point of the equipment, and the deviation of the temperature value can be checked at any time to ensure the accuracy of the measurement signal. At the same time, by setting the flexible support tube, the influence of the vibration of the installation base on the wiring terminal of the measuring point can be reduced, and the pulling of the signal cable of the temperature measuring point caused by the large vibration of the main equipment or pipeline of the measuring point and the damage of the vibration to the fastening screws of the measuring point can be effectively reduced. At the same time, by extending and bending the flexible support tube, the remote junction box or the local display meter can be avoided from the high temperature area, so as to avoid the oxidation of the internal wiring terminal caused by the long-term high temperature environment of the remote junction box, and eliminate the fault of inaccurate temperature measurement caused by the change of contact resistance of the wiring terminal. In summary, the multifunctional temperature measuring device of the utility model has the advantages of quick installation, reliable connection, accurate measurement, long service life, etc., and can effectively improve the reliability of the temperature measurement system. By comparing the real-time measurement signals, the deviation value of the signal of the measuring point can be discovered in time to ensure the accuracy of the measurement system. It can be applied to the temperature measurement system of the production process, and cooperate with the control system to realize temperature deviation alarm and automatic control of the production process.
[0006] As a further improvement of the utility model, the flexible support tube is sequentially sleeved with a metal ferrule, a copper expansion ring and a locking nut from bottom to top, the lower end of the metal ferrule is threadedly connected to the support sleeve, and the upper end is threadedly connected to the locking nut, and the lower end of the locking nut is provided with a copper expansion ring accommodating groove. Therefore, the operator can freely adjust the insertion depth of the temperature probe according to actual needs, and after installation in place, tighten the locking nut at the upper end of the metal ferrule to slightly deform the copper expansion ring to fix the flexible support tube so that it cannot slide up and down, and the installation process is simple and quick.
[0007] As a further improvement of the utility model, the remote junction box is connected to a remote signal line, a telescopic sheath is connected to the proximal outer shell of the remote signal line, and the distal end passes through a sealed rigid bracket to be connected to the DCS system in the central control room. The telescopic sheath reduces the influence of adjusting the position of the remote junction box on the connection reliability of the remote signal line, and the sealed rigid bracket protects the remote signal line, thereby maximizing the reliability of remote signal transmission.
[0008] As a further improvement of the present invention, the temperature sensor is a thermocouple temperature sensor or a thermal resistor temperature sensor, which can be applied to temperature measurement sites with different requirements.
[0009] As a further improvement of the utility model, the flexible support tube adopts a metal flexible tube to protect the internal connecting wires.
[0010] As a further improvement of the utility model, the local display meter is a digital display meter, which can reduce the influence of the vibration of the main equipment or pipeline at the measuring point on the display accuracy compared with the pointer display meter commonly used in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the use status of the multifunctional temperature measuring device of the utility model.
[0012] Figure 2 This is a schematic diagram of the exploded connection position of the flexible support tube and the support sleeve of the multifunctional temperature measuring device of the utility model.
[0013] Among them, 1 is a flexible support tube, 2 is a local display meter, 3 is a remote junction box, 4 is a base, 5 is a support sleeve, 6 is a rigid bracket, 7 is a metal ferrule, 8 is a copper expansion ring, 9 is a locking nut, and 10 is a telescopic sheath. DETAILED DESCRIPTION
[0014] like Figure 1-2 The multifunctional temperature measuring device shown comprises two temperature sensors connected to the local display meter 2 and the remote junction box 3 respectively. The temperature sensors are fixed on the mounting base respectively. The mounting base comprises a base 4 fixed on the equipment and a support sleeve 5 mounted on the base 4. The temperature sensor comprises a connecting wire, the lower end of which is connected to a temperature probe, which passes through the support sleeve 5 and the base 4 and extends into the interior of the equipment. A flexible support tube 1 is provided on the outer sleeve of the connecting wire, one end of the flexible support tube 1 is detachably connected to the support sleeve 5, and the other end is detachably connected to the local display meter 2 or the remote junction box 3. The flexible support tube 1 is a metal flexible tube. The remote junction box 3 is connected to a remote signal line, the near end of the remote signal line is connected to a telescopic sheath 10, and the far end passes through a sealed rigid bracket 6 to be connected to the DCS system in the central control room. The telescopic sheath 10 reduces the influence on the connection reliability of the remote signal line when adjusting the position of the remote junction box 3, and the sealed rigid bracket 6 protects the remote signal line to maximize the reliability of remote signal transmission. The temperature sensor can be a thermocouple temperature sensor or a thermal resistor temperature sensor, which can be applied to temperature measurement sites with different requirements. The local display meter 2 is a digital display meter, which can reduce the influence of the vibration of the main equipment or pipeline of the measuring point on the display accuracy compared with the pointer display meter commonly used in the prior art.
[0015] like Figure 2As shown, the flexible support tube 1 is sleeved with a metal ferrule 6, a copper expansion ring 8 and a locking nut 9 from bottom to top. The lower end of the metal ferrule 6 is threadedly connected to the support sleeve 5, and the upper end is threadedly connected to the locking nut 9. The lower end of the locking nut 9 is provided with a copper expansion ring accommodating groove. Therefore, the operator can freely adjust the insertion depth of the temperature probe according to actual needs. After installation, the locking nut 9 at the upper end of the metal ferrule 6 is locked to make the copper expansion ring 8 slightly deformed to fix the flexible support tube 1 so that it cannot slide up and down. The installation process is simple and quick.
[0016] The multifunctional temperature measuring device of this embodiment, by simultaneously setting the local display instrument and the remote junction box 3 at the same temperature measuring point of the equipment, realizes that the temperature data of the medium in the equipment is simultaneously displayed on the local temperature display meter and the DCS system in the central control room, and the deviation of the temperature value can be checked at any time to ensure the accuracy of the measurement signal. At the same time, through the setting of the flexible support tube 1, it is possible to reduce the influence of the vibration of the installation base on the wiring terminal of the measuring point, effectively reduce the pulling of the temperature measuring point signal cable caused by the large vibration of the main equipment or pipeline of the measuring point, and the damage of the vibration to the fastening screws of the measuring point. At the same time, by extending and bending the flexible support tube 1, the remote junction box 3 or the local display meter 2 can be avoided from the high temperature area, avoiding the oxidation of the internal wiring terminal caused by the remote junction box 3 being in a high temperature environment for a long time, and eliminating the fault of inaccurate temperature measurement caused by the change of contact resistance of the wiring terminal.
[0017] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.
Claims
1. A multifunctional temperature measuring device, characterized in that: It comprises two temperature sensors which are respectively connected to a local display meter and a remote junction box, wherein the temperature sensors are respectively fixed on a mounting base, wherein the mounting base comprises a base fixed on the equipment and a supporting sleeve mounted on the base, wherein the temperature sensor comprises a connecting wire, wherein a temperature detection head is connected to the lower end of the connecting wire, wherein the temperature detection head passes through the supporting sleeve and the base and extends into the equipment, wherein a flexible supporting tube is arranged on the outer sleeve of the connecting wire, wherein one end of the flexible supporting tube is detachably connected to the supporting sleeve, and the other end is detachably connected to the local display meter or the remote junction box.
2. The multifunctional temperature measuring device according to claim 1, characterized in that: The flexible support tube is sequentially sleeved with a metal ferrule, a copper expansion ring and a locking nut from bottom to top. The lower end of the metal ferrule is threadedly connected to the support sleeve, and the upper end is threadedly connected to the locking nut. The lower end of the locking nut is provided with a copper expansion ring accommodating groove.
3. The multifunctional temperature measuring device according to claim 1, characterized in that: The remote junction box is connected to a remote signal line, a telescopic sheath is connected to the proximal end of the remote signal line, and the distal end passes through a sealed rigid bracket to be connected to a DCS system in a central control room.
4. The multifunctional temperature measuring device according to any one of claims 1 to 3, characterized in that: The temperature sensor is a thermocouple temperature sensor or a thermal resistor temperature sensor.
5. The multifunctional temperature measuring device according to any one of claims 1 to 3, characterized in that: The flexible support tube is a metal flexible tube.
6. The multifunctional temperature measuring device according to any one of claims 1 to 3, characterized in that: The local display meter is a digital display meter.