CN116202636A - Safe type instant measurement superhigh temperature thermocouple - Google Patents
Safe type instant measurement superhigh temperature thermocouple Download PDFInfo
- Publication number
- CN116202636A CN116202636A CN202310270731.7A CN202310270731A CN116202636A CN 116202636 A CN116202636 A CN 116202636A CN 202310270731 A CN202310270731 A CN 202310270731A CN 116202636 A CN116202636 A CN 116202636A
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- Prior art keywords
- temperature
- protective sleeve
- synthetic
- pressure
- connecting piece
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/12—Protective devices, e.g. casings for preventing damage due to heat overloading
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a safe instant measurement ultra-temperature thermocouple, which comprises: synthesizing a nonmetallic protective sleeve; the top of the synthetic nonmetallic protective sleeve is connected with an upper connecting piece through a suitable connecting piece; the side wall of the upper connecting piece is provided with a temperature regulator through a communication device; a temperature and pressure controller and a control switch are arranged in the temperature regulator; the temperature and pressure controller is connected with the pressure sensor and is used for controlling the opening and closing of the control switch according to the pressure change in the composite nonmetallic protective sleeve acquired by the pressure sensor; the top of the upper connecting piece is provided with an explosion-proof junction box. The thermocouple adopts an automatic control technology, and can be operated safely for a long time under various working condition environments.
Description
Technical Field
The invention relates to the technical field of thermocouples, in particular to a safe instant measurement ultra-temperature thermocouple.
Background
At present, in the industries of domestic oil refining, chemical industry, nuclear power and the like, for a production device of high-temperature corrosive media, the working temperature is generally 1300-1800 ℃, and the media contain various mixed corrosive chemical components. At present, a temperature thermocouple is used more, the device has short service life, leakage accidents are easy to occur, and environmental pollution is caused to endanger personal safety. The principle of the traditional mechanical structure is that under the set working condition, the operation of guiding, cooling, pressure relief, sealing and the like is adopted to ensure the safe operation of the thermocouple. In practical use, the pressure, temperature, flow rate, chemical components of the medium and physical state are complex and changeable, and cannot meet the actual working condition.
Therefore, on the basis of the existing temperature thermocouple, how to provide an automatic control instant measurement ultra-temperature thermocouple so as to meet the requirement of safe long-period operation under various working condition environments becomes a problem to be solved by the technicians in the field.
Disclosure of Invention
In view of the above problems, the present invention provides a safe instant measurement ultra-temperature thermocouple which at least solves some of the above technical problems, and can meet the requirements of safe long-period operation under various working conditions.
The embodiment of the invention provides a safe instant measurement ultra-temperature thermocouple, which comprises the following components: synthesizing a nonmetallic protective sleeve;
the top of the synthetic nonmetallic protective sleeve is connected with an upper connecting piece through an adaptive connecting piece;
the side wall of the upper connecting piece is provided with a temperature regulator through a communication device; the temperature regulator is internally provided with a temperature and pressure controller and a control switch; the temperature and pressure controller is connected with a pressure sensor and is used for controlling the opening and closing of the control switch according to the pressure change in the synthetic nonmetallic protective sleeve acquired by the pressure sensor;
and an explosion-proof junction box is arranged at the top of the upper connecting piece.
Further, the compliant connectors are filled with a high temperature resistant damping material.
Further, the adaptive connecting piece is abutted with the top of the synthetic nonmetal protective sleeve through a metal elastic locating piece.
Further, the method further comprises the following steps: the sealing connection part of the upper connecting piece and the synthetic nonmetallic protective sleeve is provided with an automatic control conduit;
the control switch is arranged at the joint of the temperature regulator and the self-control conduit.
Further, a high-temperature resistant pressure-bearing pipe is sleeved outside the synthetic nonmetallic protective sleeve.
Further, the high-temperature-resistant pressure-bearing pipe is provided with a mounting process connecting piece.
Further, the synthetic non-metal protective sleeve is a double-layer or multi-layer synthetic non-metal protective sleeve.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a safe type instant measurement ultra-temperature thermocouple, which comprises the following components: synthesizing a nonmetallic protective sleeve; the top of the synthetic nonmetallic protective sleeve is connected with an upper connecting piece through a suitable connecting piece; the side wall of the upper connecting piece is provided with a temperature regulator through a communication device; a temperature and pressure controller and a control switch are arranged in the temperature regulator; the temperature and pressure controller is connected with the pressure sensor and is used for controlling the opening and closing of the control switch according to the pressure change in the composite nonmetallic protective sleeve acquired by the pressure sensor; the top of the upper connecting piece is provided with an explosion-proof junction box. The thermocouple adopts an automatic control technology, and can be operated safely for a long time under various working condition environments.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is a schematic structural diagram of a safe instant measurement ultra-temperature thermocouple according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a safe type instant measurement ultra-temperature thermocouple with an automatic control conduit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a local structure of a safe instant measurement ultra-temperature thermocouple provided with an automatic control conduit according to an embodiment of the present invention;
fig. 4 is a diagram showing a change of pressure P in a sleeve with time t in a temperature rising process of the safe instant measurement ultra-temperature thermocouple provided by the embodiment of the invention;
fig. 5 is a diagram showing the pressure P in the sleeve according to time t, wherein the safety type immediate measurement ultra-temperature thermocouple synthesis nonmetallic protective sleeve provided by the embodiment of the invention breaks.
In the accompanying drawings: 1-synthesizing a nonmetallic protective sleeve; 2-a high-temperature resistant pressure-bearing pipe; 3-installing a process connection; 4-a high temperature resistant damping material; 5-metal elastic positioning piece; 6-upper connectors; 7-a thermostat; 8-an explosion-proof junction box; 9-fitting connectors; 10-communication means; 11-a control switch; 12-a warm-pressing controller; 13-a control system; 14-self-controlled catheter.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides a safe instant measurement ultra-temperature thermocouple, which comprises the following components: a synthetic nonmetallic protective sleeve 1;
the top of the synthetic nonmetallic protective sleeve 1 is connected with an upper connecting piece 6 through a suitable connecting piece 9;
the side wall of the upper connecting piece 6 is provided with a temperature regulator 7 through a communication device 10; the temperature regulator 7 is internally provided with a temperature and pressure controller 12 and a control switch 11; the temperature and pressure controller 12 is connected with a pressure sensor and is used for controlling the opening and closing of the control switch 11 according to the pressure change in the synthetic nonmetallic protective sleeve 1 acquired by the pressure sensor;
an explosion-proof junction box 8 is arranged at the top of the upper connecting piece 6.
The safe instant measurement ultra-temperature thermocouple provided by the embodiment is suitable for temperature measurement of high-temperature and corrosion devices in industries such as oil refining chemical industry, nuclear power industry and the like. In the measuring process, under the action of temperature and pressure in the device, the thermocouple assemblies generate mutual temperature and pressure change: when the set value is exceeded, the self-control conduit is opened, and the thermocouple is protected to work normally through the processing of the temperature and pressure controller. Under the emergency, the synthesized nonmetallic protective sleeve is damaged, and the automatic control catheter automatically throttles and cools; the temperature and pressure controller is closed to prevent medium leakage, and serious safety production accidents are avoided.
Referring to fig. 1 to 3, the safe instant measurement ultra-temperature thermocouple provided in this embodiment specifically includes:
the composite nonmetallic protective sleeve 1 is a double-layer or multi-layer composite nonmetallic protective sleeve, the composite nonmetallic protective sleeve 1 passes through the high-temperature-resistant pressure-bearing pipe 2, and one end of the high-temperature-resistant pressure-bearing pipe 2 is provided with an installation process connecting piece 3;
the upper connecting piece 6 is connected with the top of the synthetic nonmetal protective sleeve 1, a position adapting connecting piece 9 is arranged at the joint of the upper connecting piece 6 and the top of the synthetic nonmetal protective sleeve 1, and a metal elastic positioning piece 5 and a high-temperature resistant damping material 4 are arranged in the position adapting connecting piece 9;
the temperature regulator 7 is arranged on the side surface of the upper connecting piece 6, is internally provided with a temperature-pressure controller 12 and a control switch 11, and is used for regulating the control switch 11 to release the pressure of the gas in the synthetic nonmetallic protective sleeve 1 by sensing the change of the pressure and the temperature in the synthetic nonmetallic protective sleeve 1 through the temperature-pressure controller 12, and can close the control switch 11 to prevent the medium from leaking if the synthetic nonmetallic protective sleeve 1 breaks;
a communication device 10 is arranged between the control system 13 and the upper connecting piece 6;
a self-control conduit 14 arranged at the sealing connection position of the upper connecting piece 6 and the synthetic nonmetallic protective sleeve 1 and used for connecting the gas in the synthetic nonmetallic protective sleeve 1 and the temperature regulator 7;
an explosion-proof junction box 8 arranged at the tail end of the upper connecting piece 6, wherein the electrical interface can be selected from 1/2' NPT (F) or M20X1.5 (F);
a control switch 11, which is arranged at the connection part of the temperature regulator 7 and the self-control conduit 14, and is used for controlling the connection and disconnection of the temperature regulator 7 and the self-control conduit 14;
a temperature and pressure controller 12 connected to the gas in the synthetic non-metal protection pipe 1 and the control switch 11, respectively, for monitoring the pressure in the synthetic non-metal protection pipe 1 and transmitting the monitored data to the control switch 11; the control switch 11 further adjusts the pressure of the gas inside the synthetic nonmetallic protective sleeve 1 according to the pressure;
the control system 13 is used for setting a threshold value, receiving data of the pressure sensor, controlling the control switch 11 according to a data processing result, and controlling the connection and disconnection of the temperature regulator 7 and the automatic control conduit 14 so that the thermocouple can timely release the internal pressure; and when the synthetic nonmetallic protective sleeve 1 breaks, timely preventing the medium from leaking out;
the temperature controller 12 and the control switch 11 are arranged in the temperature regulator 7, the temperature controller 12 is used for monitoring the pressure in the synthetic nonmetallic protective sleeve 1 and transmitting monitoring data to the control switch 11, so that the release of the internal pressure of the synthetic nonmetallic protective sleeve 1 and the prevention of medium leakage when the synthetic nonmetallic protective sleeve 1 breaks are realized;
in specific use, the standard pressure value bearable by the synthetic nonmetallic protective sleeve 1 is P b When the thermocouple is initially operated, the control switch 11 is in a closed state, and the pressure sensor monitors the pressure of the gas in the synthetic nonmetallic protective casing 1 in real time (the initial pressure is P N )P 1 And transmits the monitoring data to the control system 13, and the pressure value is set to be P when the control switch 11 of the control system 13 is opened Z The method comprises the steps of carrying out a first treatment on the surface of the The control system 13 monitors the real-time gas pressure P detected by the pressure sensor 1 Preset value P of control system 13 Z The comparison is then made, and a judgment is made and fed back to the warm-pressing controller 12, and the internal pressure of the synthetic nonmetallic protective sheathing 1 is adjusted by the control switch 11. In the heating process of the thermocouple, the pressure P in the sleeve changes along with the time t, and the working states of all parts are as follows:
when the thermocouple starts to work, the pressure of the gas in the synthetic nonmetallic protective sleeve 1 gradually increases, and the pressure is not higher than P Z The control switch 11 of the control system 13 is not opened;
referring to fig. 4, the gas pressure in the synthetic non-metallic protective sleeve 1 continues to increase beyond the set value P Z The control switch 11 of the control system 13 opens the pressure relief, and the gas pressure in the synthetic nonmetallic protective casing 1 stops increasing at the point B because the gas pressure in the synthetic nonmetallic protective casing 1 continues to increase at the moment, but the increasing rate of the gas pressure is gradually reduced due to the pressure relief;
the gas in the synthetic nonmetallic protective sleeve 1 starts to be reduced by the pressure relief pressure and is restored to P at the point D for the first time N ；
The pressure of the gas in the synthetic nonmetallic protective sleeve 1 changes with time to be P N Slightly fluctuating up and down in the vicinity;
wherein, the set value P Z Must be smaller than the standard pressure value P which can be borne by the synthetic nonmetallic protective sleeve 1 b And ensure that the switch of the control system 13 can be opened in time to release pressure, and ensure that the pressure at the point B is smaller than the standard pressure value P which can be born by the composite nonmetallic protective sleeve 1 b Ensuring that the non-metallic protective sleeve 1 is not damaged by excessive internal pressure;
the control system 13 determines that the composite nonmetallic protective casing 1 breaks, the pressure P in the casing changes along with the time t, and the working states of all parts are as follows:
referring to fig. 5, the pressure of the gas in the synthetic non-metallic protective sleeve 1 rises instantaneously and exceeds P b At this time, the sleeve is broken, the control switch 11 of the control system 13 is automatically closed to prevent the medium from being outDischarging;
because the control switch 11 is closed, the medium cannot leak, the synthetic nonmetallic protective sleeve 1 is communicated with the device, and the internal pressure is P b The above region fluctuates slightly up and down around a certain pressure value.
The safe type instant measurement ultra-temperature thermocouple provided by the embodiment adopts an automatic control technology, and can be operated safely for a long time under various working condition environments.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (7)
1. A safe instant measurement ultra-temperature thermocouple, comprising: a synthetic nonmetallic protective sleeve (1);
the top of the synthetic nonmetallic protective sleeve (1) is connected with an upper connecting piece (6) through a suitable connecting piece (9);
the side wall of the upper connecting piece (6) is provided with a temperature regulator (7) through a communication device (10); the temperature regulator (7) is internally provided with a temperature and pressure controller (12) and a control switch (11); the temperature and pressure controller (12) is connected with a pressure sensor and is used for controlling the opening and closing of the control switch (11) according to the pressure change in the synthetic nonmetallic protective sleeve (1) acquired by the pressure sensor;
an explosion-proof junction box (8) is arranged at the top of the upper connecting piece (6).
2. A safety instant measuring hyperthermia thermocouple according to claim 1, characterized in that the compliant connection (9) is filled with a high temperature resistant damping material (4).
3. A safety instant measuring hyperthermia thermocouple according to claim 1, characterized in that the said suitable connection (9) is in abutment with the top of the said synthetic non-metallic protective sleeve (1) by means of a metallic elastic positioning element (5).
4. A safe point-of-care hyperthermia thermocouple as defined in claim 3, further comprising: the sealing connection part of the upper connecting piece (6) and the synthetic nonmetallic protective sleeve (1) is provided with an automatic control conduit (14);
the control switch (11) is arranged at the joint of the temperature regulator (7) and the self-control conduit (14).
5. The safe type instant measurement ultra-temperature thermocouple according to claim 1, wherein the synthetic nonmetal protective sleeve (1) is externally sleeved with a high-temperature resistant pressure-bearing pipe (2).
6. A safety instant measuring ultra-temperature thermocouple according to claim 5, characterized in that the high temperature resistant pressure tube (2) is provided with a mounting process connection (3).
7. A safety instant measuring hyperthermal thermocouple according to claim 1, characterized in that the synthetic nonmetallic protective sleeve (1) is a double-layer or multi-layer synthetic nonmetallic protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310270731.7A CN116202636A (en) | 2023-03-20 | 2023-03-20 | Safe type instant measurement superhigh temperature thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310270731.7A CN116202636A (en) | 2023-03-20 | 2023-03-20 | Safe type instant measurement superhigh temperature thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116202636A true CN116202636A (en) | 2023-06-02 |
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ID=86511242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310270731.7A Pending CN116202636A (en) | 2023-03-20 | 2023-03-20 | Safe type instant measurement superhigh temperature thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116202636A (en) |
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2023
- 2023-03-20 CN CN202310270731.7A patent/CN116202636A/en active Pending
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