Improved instrument sampling pipeline electric heat tracing system
A redundant electric heating system with backup components addresses overheating and mechanical failures, enhancing reliability and safety in instrument sampling lines.
Patent Information
- Application Number
- CN202422508555.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Traditional electric heat tracing systems have problems such as overheating, short circuit and circuit breaking, which affects the display and service life of the instrument data, and poses safety hazards.
It adopts redundant configuration of electrical heat trays and thermostats, one-to-one use and one-to-one, and is equipped with a temperature sensor and thermal insulation layer to ensure system reliability and continuity.
It improves the reliability of the electrical heating tracing system of the instrument sampling pipeline, extends the service life of the electrical heating tray, and ensures the safe production of the process.
Smart Images
Figure CN223105620U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of instrument electric tracing systems, and particularly to an improved electric tracing system for instrument sampling pipelines. Background Technique
[0002] The principle of electric tracing is to install the electric tracing tape along the measurement pipeline and rely on the heat emitted by the electric tracing tape to compensate for the heat loss of the measurement medium during pipeline transmission. The electric tracing system is relatively simple, but the traditional electric tracing method has the following problems: 1. The electric tracing tape may overheat. This is due to a malfunction of the temperature control system, which cannot accurately control the heating temperature, resulting in the continuous temperature rise of the electric tracing tape. Overheating not only affects the service life of the electric tracing tape, but may also damage surrounding objects and even cause safety accidents such as fires. 2. Short circuit is one of the common problems in the use of electric tracing tapes. This is because the electric tracing tape is mechanically damaged during installation or use, resulting in the damage of the internal wire insulation layer, so that the positive and negative wires are in direct contact. 3. The electric tracing tape may also be open-circuited. Long-term use may cause the wire to fatigue and break, or the wire may be damaged due to excessive stretching during installation. Due to the malfunction of the electric tracing system, the tracing temperature of the instrument sampling pipeline is too high or too low, which will affect the abnormal display of instrument data, damage the instrument, shorten the service life of the electric tracing tape, and even affect the safe production of the process. Summary of the Invention
[0003] In order to solve the above problems, the utility model provides an improved electric tracing system for instrument sampling pipelines, which can effectively improve the reliability of the electric tracing system for instrument sampling pipelines and extend the service life of the electric tracing tape.
[0004] Its technical solution is as follows: an improved electric tracing system for instrument sampling pipelines, which includes a process pipeline, an instrument sampling pipeline is arranged on the process pipeline, an electric tracing tape is wound on the instrument sampling pipeline, and it is characterized in that the electric heating tape and the instrument sampling pipeline are connected into a heat preservation box, a temperature controller and an analysis instrument are arranged in the heat preservation box, the electric tracing tape is electrically connected to the temperature controller, the instrument sampling pipeline is electrically connected to the analysis instrument, each electric tracing tape is connected to a temperature sensor and includes two independent electric tracing tapes provided with heat insulation layers, and two temperature controllers are provided with one for use and one for standby.
[0005] It is further characterized in that a heater is arranged in the heat preservation box.
[0006] After adopting the utility model, both the electric tracing tape and the temperature controller adopt redundant configurations, one for use and one for standby, which improves the reliability of the electric tracing system for instrument sampling pipelines, extends the service life of the electric tracing tape, and ensures the continuity of the electric tracing system for instrument sampling pipelines and the safe production of the process. Brief Description of the Drawings
[0007] Figure 1 This is a schematic structural diagram of the utility model. Specific embodiments
[0008] See Figure 1 As shown, an improved electric tracing system for instrument sampling pipelines includes a process pipeline 8, on which an instrument sampling pipeline 7 is arranged. An electric tracing tape 1 is wound around the instrument sampling pipeline 7. The electric tracing tape 1 and the instrument sampling pipeline 7 are connected into a heat preservation box 4 through an inlet box gland 3. A temperature controller 2 and an analytical instrument 6 are arranged in the heat preservation box 4. The electric tracing tape 1 is electrically connected to the temperature controller 2, and the instrument sampling pipeline 7 is electrically connected to the analytical instrument 6. Each electric tracing tape 1 is connected to a temperature sensor and includes two independent electric tracing tapes provided with heat insulation layers. Two temperature controllers 2 are provided with one for use and one for standby.
[0009] Each electric tracing tape 1 also has a redundant configuration of one for standby and one for use. The existence of the heat insulation layer can effectively prevent the currently operating electric tracing tape from affecting the use of the standby electric tracing tape. When the temperature of the electric tracing tape is lower than the set temperature, or when the electric tracing tape has a short circuit or other problems, the currently used electric tracing tape can be replaced with the standby electric tracing tape to ensure the reliability and continuity of the electric tracing system for instrument sampling pipelines.
[0010] When the temperature of the electric tracing tape is higher than the set temperature, it means that the temperature controller in the electric tracing system fails. At this time, the temperature sensor feedback signal of the electric tracing tape interlocks the temperature controller, and the currently operating temperature controller can be replaced with the standby temperature controller to avoid local heat accumulation, overheating phenomenon, affecting the service life of the electric tracing tape, and even causing safety accidents such as fires.
Claims
1. An improved electric tracing system for instrument sampling pipelines, which includes a process pipeline, an instrument sampling pipeline is arranged on the process pipeline, and an electric tracing tape is wound around the instrument sampling pipeline, and is characterized in that, The electric tracing band and the instrument sampling pipeline are connected into the heat preservation box. A temperature controller and an analytical instrument are arranged in the heat preservation box. The electric tracing band is electrically connected to the temperature controller, and the instrument sampling pipeline is electrically connected to the analytical instrument. Each electric tracing band is connected to a temperature sensor and comprises two independent electric tracing bands provided with heat insulation layers. There are two temperature controllers, one for use and one for standby.
2. An improved instrument sampling pipeline electric tracing system according to claim 1, characterized in that, A heater is arranged in the heat preservation box.