CN2800244Y - Temperature measurement transducer for strong electric field environment - Google Patents
Temperature measurement transducer for strong electric field environment Download PDFInfo
- Publication number
- CN2800244Y CN2800244Y CN200520110284.6U CN200520110284U CN2800244Y CN 2800244 Y CN2800244 Y CN 2800244Y CN 200520110284 U CN200520110284 U CN 200520110284U CN 2800244 Y CN2800244 Y CN 2800244Y
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- electric field
- temperature
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- temperature measurement
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Abstract
The utility model discloses a temperature measurement transducer for a strong electric field environment, which comprises a temperature measurement transducer. The utility model is characterized in that the temperature measurement transducer also comprises a shielding made of metal materials. The temperature transducer is arranged in the metallic shielding which is connected with the ground through a grounding wire. Due to the fact that the temperature transducer is arranged in the metallic shielding by the utility model, and the metallic shielding is connected with the ground through the grounding wire to make the surficial potential of the shielding be zero, the influence brought on the temperature transducer by the electric field strength is thoroughly eliminated to ensure that the temperature transducer can normally work in the strong electric field environment and can safely measure the temperature of a high-pressure apparatus.
Description
Technical field
The utility model relates to a kind of temperature measurement sensing equipment, refers to a kind of temperature measurement sensing equipment that can measure the high-tension apparatus temperature in the highfield environment safely especially.
Background technology
In order to guarantee high-tension apparatus such as safety such as high-tension transformer, high voltage converter, to work reliably, need constantly monitor the high-tension apparatus temperature, and the temperature of high-tension apparatus is regulated control, thereby, it is worked in the temperature range that allows.In the process that the high-tension apparatus temperature is monitored, must adopt temperature probe such as thermopair, thermal resistance etc. to carry out temperature detection.
When the high-tension apparatus operate as normal, because the effect of highfield induction, to produce electric field intensity in high-tension apparatus inside and surrounding environment is the electric field of E, this electric field can make the metallic conductor surface that places this electric field produce a floating potential U over the ground, and the height of this floating potential is directly proportional with the electric field intensity of metallic conductor electric field of living in, that is:
U∝E
When electric field strength E was increased to certain value, the floating potential U that is in the metallic conductor surface generation in this electric field also will rise to certain value.When this floating potential U reached a certain numerical value, this floating potential will cause serious harm to temperature probe, the control circuit that links to each other with temperature probe, they can be punctured when serious, made them can't operate as normal.
Summary of the invention
In view of the foregoing, the purpose of this utility model provides a kind of temperature measurement sensing equipment that can operate as normal in the highfield environment.
For achieving the above object, the utility model by the following technical solutions: a kind of temperature measurement sensing equipment that is applied in the highfield environment, it comprises a temperature probe, it is characterized in that: it also comprises a screen of being made by metal material; Described temperature probe places in this metal shield; This metal shield links to each other with the earth by ground wire.
Be with one deck insulant in the outside of described metal shield.
Because the utility model places temperature probe in the metal shield, utilize the influence of metal shield electric field shielding intensity E to temperature probe, simultaneously, by ground wire the charge-conduction that the metal shield surface produces is arrived the earth again, the current potential that makes the screen surface is zero, thereby, eliminate the influence of electric field strength E up hill and dale to temperature probe, guarantee that in the highfield environment temperature probe can operate as normal, can measure the temperature of high-tension apparatus safely; Simultaneously, the breakdown phenomenon of also having avoided causing owing to temperature probe is breakdown linking to each other with temperature probe of control circuit takes place.The utlity model has advantage safe in utilization, reliable operation.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation
Fig. 2 is the utility model embodiment 2 structural representations
Embodiment
When the high-tension apparatus operate as normal, because the effect of highfield induction, will produce electric field intensity in high-tension apparatus inside and surrounding environment is the electric field of E, and this electric field can make the metallic conductor surface that places this electric field produce a floating potential U over the ground.When this floating potential U reaches a certain numerical value, will cause serious harm with the control circuit that links to each other with temperature probe to temperature probe, they can be punctured when serious, make them can't operate as normal.
In order to eliminate the influence of electric field strength E to temperature probe, make the temperature probe surface not produce current potential, as shown in Figure 1, the utility model places temperature probe 1 in the screen 2 of being made by metal material, and this metal shield 2 is linked to each other with the earth by ground wire 3.
Because the utility model places temperature probe 1 in the metal shield 2, utilize the influence of metal shield 2 electric field shielding intensity E to temperature probe 1, simultaneously, by ground wire 3 charge-conduction that metal shield 2 surfaces produce is arrived the earth again, the current potential that makes screen 2 surfaces is zero, thereby, eliminate the influence of electric field strength E up hill and dale to temperature probe 1, guarantee that in the highfield environment temperature probe 1 can operate as normal, can measure the temperature of high-tension apparatus safely; Simultaneously, also avoided owing to the temperature probe 1 breakdown breakdown phenomenon of control circuit that causes linking to each other with temperature probe takes place.
In the present embodiment, screen 2 is worked out by copper wire, certainly, also can work out with iron wire or other metal materials.
In the present embodiment, temperature probe 1 hangs (hanging) in metal shield 2, and certainly, it also can place in the metal shield 2 by clamping fixing or being adhesively fixed or overlapping the mode of fastening.In a word, no matter adopt the sort of mode,, and metal shield 2 ground connection are got final product as long as temperature probe 1 is placed in the metal shield 2.
Fig. 2 is another embodiment of the present utility model.The difference of it and Fig. 1 is: the outside at metallic shield body 2 is with one deck insulant 4 again.
In order to make surface temperature and the ambient temperature that the utility model can the close-in measurement high-voltage charged body, and reflect above two measured values truly, so the utility model is with one deck insulant 4 on the surface of metal shield 2 again.
The above only is preferred embodiment of the present utility model, and protection domain of the present utility model is not limited thereto.Anyly all belong within the utility model protection domain based on the equivalent transformation on the technical solutions of the utility model.
Claims (2)
1, a kind of temperature measurement sensing equipment that is applied in the highfield environment, it comprises a temperature probe, it is characterized in that: it also comprises a screen of being made by metal material; Described temperature probe places in this metal shield; This metal shield links to each other with the earth by ground wire.
2, a kind of temperature measurement sensing equipment that is applied in the highfield environment according to claim 1 is characterized in that: be with one deck insulant in the outside of described metal shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520110284.6U CN2800244Y (en) | 2005-06-20 | 2005-06-20 | Temperature measurement transducer for strong electric field environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520110284.6U CN2800244Y (en) | 2005-06-20 | 2005-06-20 | Temperature measurement transducer for strong electric field environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800244Y true CN2800244Y (en) | 2006-07-26 |
Family
ID=36842741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200520110284.6U Expired - Lifetime CN2800244Y (en) | 2005-06-20 | 2005-06-20 | Temperature measurement transducer for strong electric field environment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800244Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3115756A1 (en) * | 2015-07-08 | 2017-01-11 | BSH Hausgeräte GmbH | Cooking sensor |
| CN113465758A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Temperature measuring device and temperature measuring system |
-
2005
- 2005-06-20 CN CN200520110284.6U patent/CN2800244Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3115756A1 (en) * | 2015-07-08 | 2017-01-11 | BSH Hausgeräte GmbH | Cooking sensor |
| CN113465758A (en) * | 2021-06-21 | 2021-10-01 | 中国原子能科学研究院 | Temperature measuring device and temperature measuring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150620 Granted publication date: 20060726 |