CN215893817U - Sealed thermocouple - Google Patents
Sealed thermocouple Download PDFInfo
- Publication number
- CN215893817U CN215893817U CN202122367218.9U CN202122367218U CN215893817U CN 215893817 U CN215893817 U CN 215893817U CN 202122367218 U CN202122367218 U CN 202122367218U CN 215893817 U CN215893817 U CN 215893817U
- Authority
- CN
- China
- Prior art keywords
- thermocouple
- junction box
- filling chamber
- sealed
- thermowell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a sealed thermocouple, which comprises a junction box and a thermocouple sleeve connected with the junction box, wherein a filling chamber is arranged at one end, butted with the junction box, of the thermocouple sleeve, sealing silica gel is filled in the filling chamber, a linear temperature measuring wire is arranged in the thermocouple sleeve, the end part of the linear temperature measuring wire penetrates through the filling chamber and extends into the junction box, a heat insulation coating is arranged on the outer part of the thermocouple sleeve, and the length of the filling chamber is one sixth to one fifth of the length of the thermocouple sleeve. The utility model has the beneficial effects that: this technical scheme carries out the air current separation with thermowell and terminal box through filling indoor sealed silica gel, avoids thermowell to damage, has the air current to pass through from the terminal box, has improved the security of equipment.
Description
Technical Field
The utility model relates to the technical field of thermocouples, in particular to a sealed thermocouple capable of thermally blocking a thermowell and a junction box.
Background
The flow velocity of a medium in partial pipelines of oil refineries and chemical plants is relatively high, the requirement on high precision and quick response of temperature measurement during temperature measurement is high, for example, the caliber of partial pipelines in a hydrofined oil product synthesis device is DN 300-DN 700, the flow velocity is 50-75 m/s, the medium is diesel oil, heavy diesel oil, wax oil and other liquid phases, and the operation temperature is 300-400 ℃.
The existing traditional flange type integral drilling thermocouple sleeve has the advantages that the structure of the armored thermocouple or the thermal resistor and the thermocouple sleeve is of a core-pulling type, the armored thermocouple cannot be in large-area contact with the inner wall of the thermocouple sleeve, and the heat conduction effect is poor. Since the temperature of the medium flowing through the sleeve at a high speed changes rapidly, when the thermocouple sleeve cannot transfer heat to the thermocouple wire in time, the temperature of the junction box rises rapidly, and the accuracy of data is affected, therefore, a sealed thermocouple capable of thermally blocking the thermocouple sleeve and the junction box is required to be developed, and the technical scheme which is the same as that of the utility model is not found after retrieval.
SUMMERY OF THE UTILITY MODEL
The technical problem underlying the present invention is to provide a sealed thermocouple capable of thermally blocking a thermowell from a junction box, solving one or more of the above-mentioned prior art problems.
In order to solve the technical problems, the utility model adopts a technical scheme that: the sealed thermocouple is characterized in that: the thermocouple junction box comprises a junction box and a thermocouple sleeve connected with the junction box, wherein a filling chamber is arranged at one end, butted with the junction box, of the thermocouple sleeve, sealing silica gel is filled in the filling chamber, a linear temperature measuring wire is arranged in the thermocouple sleeve, a ceramic column is arranged on the outer portion of the linear temperature measuring wire, and the end portion of the linear temperature measuring wire penetrates through the filling chamber and extends into the junction box.
In some embodiments, a thermal barrier coating is provided on the exterior of the thermowell.
In some embodiments, the length of the fill chamber is one sixth to one fifth of the length of the thermowell.
The utility model has the beneficial effects that: this technical scheme carries out the air current separation with thermowell and terminal box through filling indoor sealed silica gel, avoids thermowell to damage, has the air current to pass through from the terminal box, has improved the security of equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural view of a sealed thermocouple according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention includes:
the utility model provides a sealed thermocouple, includes terminal box 2 and the thermowell 1 of being connected with terminal box 2, and the one end that thermowell 1 and terminal box 2 butt joint is equipped with a packing room 3, and packing room 3 intussuseption is filled with sealed silica gel 4, is equipped with linear temperature measurement silk 5 in the thermowell 1, is equipped with the ceramic post on the outside of linear temperature measurement silk 5, and the tip of linear temperature measurement silk 5 passes packing room 3 and extends to in the terminal box 2.
In some embodiments, thermowell 1 is provided with a thermal barrier coating on the exterior.
In some embodiments, the length of the fill chamber 3 is one sixth to one fifth of the length of the thermowell 1.
The utility model has the beneficial effects that: this technical scheme is through the sealed silica gel 4 in the packing chamber 3, carries out the air current separation with thermowell 1 and terminal box 2, avoids thermowell 1 to damage, has the air current to pass through from terminal box 2, has improved the security of equipment.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. A sealed thermocouple, characterized by: the thermocouple sleeve comprises a junction box (2) and a thermocouple sleeve (1) connected with the junction box (2), wherein a filling chamber (3) is arranged at one end, butted with the junction box (2), of the thermocouple sleeve (1), a sealing silica gel (4) is filled in the filling chamber (3), a linear temperature measuring wire (5) is arranged in the thermocouple sleeve (1), a ceramic column is arranged on the outer portion of the linear temperature measuring wire, and the end portion of the linear temperature measuring wire (5) penetrates through the filling chamber (3) and extends into the junction box (2).
2. A sealed thermocouple according to claim 1, wherein: and a heat insulation coating is arranged on the outer part of the thermocouple sleeve (1).
3. A sealed thermocouple according to claim 1, wherein: the length of the filling chamber (3) is one sixth to one fifth of the length of the thermowell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367218.9U CN215893817U (en) | 2021-09-28 | 2021-09-28 | Sealed thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122367218.9U CN215893817U (en) | 2021-09-28 | 2021-09-28 | Sealed thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215893817U true CN215893817U (en) | 2022-02-22 |
Family
ID=80348176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122367218.9U Active CN215893817U (en) | 2021-09-28 | 2021-09-28 | Sealed thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215893817U (en) |
-
2021
- 2021-09-28 CN CN202122367218.9U patent/CN215893817U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101113963A (en) | Method and device for measuring liquid thermal conductivity factor | |
| US4023411A (en) | Temperature measuring device | |
| CN103398798B (en) | A kind of thermocouple temperature measuring apparatus for hyperbaric environment | |
| CN215893817U (en) | Sealed thermocouple | |
| CN204479207U (en) | Oil well high-temperature resistant optical fiber thermometric pipeline | |
| CN102062642A (en) | High-precision temperature sensitive probe | |
| CN107014513B (en) | Sleeve type platinum resistor temperature sensing device | |
| CN106352995A (en) | Thermocouple-based temperature measurement device | |
| US4283954A (en) | High temperature pressure gauge | |
| GB979616A (en) | Temperature measuring apparatus for flowing fluids | |
| CN206945160U (en) | One kind is appeared type armoured thermocouple structure | |
| US3267726A (en) | Heat flux probe | |
| CN204476396U (en) | Oil well is even fine with test tube line | |
| CN211178772U (en) | Thermocouple | |
| CN205192640U (en) | Assembled temperature sensor | |
| CN205542097U (en) | Oil well is temperature measurement cable in pit | |
| CN201983875U (en) | Multi-point temperature measurement probe with low damage and accurate location | |
| CN104280151B (en) | Temperature testing system for high-pressure high-humidity underground rock-soil in long distance mode and connecting method thereof | |
| CN208125288U (en) | A kind of nuclear power multipoint thermocouple | |
| CN206301226U (en) | A kind of novel intelligent viscous crude temperature control equipment | |
| US3174340A (en) | Thermocouple and thermometer well | |
| CN201885817U (en) | High-precision temperature-sensing probe | |
| CN206353056U (en) | Thermocouple temperature measuring apparatus | |
| Farber et al. | Variation of heat transfer coefficient with length | |
| CN205879388U (en) | Multistage temperature thermocouple |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |