CN104849313A - Design of chilled mirror method dew point instrument base structure - Google Patents
Design of chilled mirror method dew point instrument base structure Download PDFInfo
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- CN104849313A CN104849313A CN201510165502.4A CN201510165502A CN104849313A CN 104849313 A CN104849313 A CN 104849313A CN 201510165502 A CN201510165502 A CN 201510165502A CN 104849313 A CN104849313 A CN 104849313A
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Abstract
The present invention belongs to the technical field of design of chilled mirror method dew point instrument base structure. Based on the special structure and manner of the chilled mirror method dew point instrument base, an SF6 gas trace moisture content measurement unit is designed into a modular structure; in the premise of ensuring gas path seal and installation strength, a cooling element, a conditioning circuit, a heat conduction structure and a heat pipe radiator are arranged on the module to achieve the measurement of the SF6 trace moisture.
Description
Technical field
Cold Mirrors method dew point hygrometer base construction design of the present invention relates to the technical field of trace moisture content surveying instrument application in SF6 gas in electric system SF6 high-tension apparatus;
Background technology
Along with the extensive application of electric power networks and the develop rapidly of electricity consumption cause and the high voltage electric equipment of SF6 gas barrier, strict requirement is proposed to the safety of electric power networks and electricity consumption.SF6 high-tension apparatus is in operational process, may due to the line bag in equipment, the moisture contained in the parts such as insulating paper incorporates in SF6 gas, also may enter in SF6 gas by seal seepage due to outside moisture, the existence of these micro-moistures can reduce the insulating capacity of SF6 gas, SF6 gas is overheated simultaneously, electric arc, under the effect of electric spark and corona discharge, will decompose, micro-moisture in its decomposition product and equipment, electrode and solid insulating material react, have a strong impact on the insulating capacity of equipment, thus the probability of SF6 High-Voltage Electrical Appliances generation serious accident is increased greatly, therefore the periodicity detection of trace moisture content should be carried out for operating SF6 high-tension apparatus, the detection means being suitable for onsite application is at present then the dew-point measuring method adopting Cold Mirrors principle, and the core component of this method is exactly pedestal, the quality of base construction design determines the accuracy of measurement, rapidity, stability.
Summary of the invention
The object of the invention is to design with the application specific architecture by Cold Mirrors method dew point hygrometer pedestal, realize SF6 dew point accurately and fast, stably measured and the gordian technique adopted, provide the new construction to SF6 measurement instrument for trace water device and new paragon.SF6 micro-moisture measuring unit is designed to modular construction, cooling module is realized the isolation of huyashi-chuuka (cold chinese-style noodles) and hot side by pedestal and secures the position of cooling module, by the metal of heat conduction, heat being distributed timely simultaneously; The control circuit of cooling module and metering circuit by encapsulation process and pedestal fixing while electric signal and pedestal isolated and deliver to outside base body by conductor, simultaneously by a little board design, signal is directed on circuit board, then by reliable private jack, signal is connected on signal processing circuit board; Pedestal can ensure that tested gas directs into reliably and measure cavity position for accurate measurement, ensures the strict impermeability of gas and the external world and drying property simultaneously; Being closely linked to pedestal, what be is probe core body for measuring, and pedestal ensures its position correctness, the tightness of connection, the impermeability of measurement, the convenience of maintenance; The other one side be associated with pedestal is heat-pipe radiator, and the heat of cooling module falls apart on heat-pipe radiator by pedestal exactly, also firm for heat-pipe radiator will be fixed on impact faces simultaneously; Because portable instrument needs lightweight, therefore the design of pedestal adopts light, firm magnesium-aluminium alloy material, and while ensureing secure heat dissipation, also ensure that intensity, during design, Milling Machining is cut at unnecessary position simultaneously and remove, this just alleviates the weight of pedestal.
Pass through the present invention, taking into full account under the condition improving SF6 measurement instrument for trace water device reliability and convenience, implementing " design of Cold Mirrors method dew point hygrometer base construction " gordian technique, accurately detecting trace moisture content in SF6 High-Voltage Electrical Appliances, effectively solving the deficiency, defect and the drawback that exist in prior art and present situation, its design science is reasonable, simple and ingenious structure, effect stability reliably, be beneficial to and apply.
The present invention can accomplish the end in view.
For achieving the above object, technical scheme provided by the invention is:
The design of a kind of Cold Mirrors method dew point hygrometer base construction, base body carries out special processing primarily of overall almag block according to designing requirement, this structure is carried out to the surface treatment of burning simultaneously, base body and cooling module, signal conditioning circuit, acting gas pipe joint, conductive pole are combined and forms technical scheme of the present invention;
Described Cold Mirrors method dew point hygrometer base construction design, SF6 micro-moisture measuring unit is designed to modular construction, cooling module realized the isolation of huyashi-chuuka (cold chinese-style noodles) and hot side by pedestal and secures the position of cooling module, by the metal of heat conduction, heat being distributed timely simultaneously; The control circuit of cooling module and metering circuit by encapsulation process and pedestal fixing while electric signal and pedestal isolated and deliver to outside base body by conductor, simultaneously by a little board design, signal is directed on circuit board, then by reliable private jack, signal is connected on signal processing circuit board; Pedestal can ensure that tested gas directs into reliably and measure cavity position for accurate measurement, ensures the strict impermeability of gas and the external world and drying property simultaneously; Being closely linked to pedestal, what be is probe core body for measuring, and pedestal ensures its position correctness, the tightness of connection, the impermeability of measurement, the convenience of maintenance; The other one side be associated with pedestal is heat-pipe radiator, and the heat of cooling module falls apart on heat-pipe radiator by pedestal exactly, also firm for heat-pipe radiator will be fixed on impact faces simultaneously; Because portable instrument needs lightweight, therefore the design of pedestal adopts light, firm magnesium-aluminium alloy material, while ensureing secure heat dissipation, also ensure that intensity, during design, Milling Machining is cut at unnecessary position to remove, this just alleviates the weight of pedestal simultaneously.
Described Cold Mirrors method dew point hygrometer base construction design, described cooling module is for measuring the specific module needed for trace moisture content, described signal processing circuit board is the given shape of structural design and the circuit board of mounting means for this reason, the tower structure that described structure designs for magnalium;
Described Cold Mirrors method dew point hygrometer base construction design, the structure surface of described magnalium design is coated with the material preventing water adsorption.
Described Cold Mirrors method dew point hygrometer base construction design, described radiating surface needs retrofit, thickness is thin, intensity is high structural design.
Owing to have employed technical scheme provided by the present invention, thus make the present invention compared with existing known technology, obtain following beneficial effect:
1, adopt light-duty material and compact design because the present invention is arranged, make the complete machine structure of pedestal light and small and exquisite.
2, because structural design of the present invention considers the quick conduction of heat, with the surface of contact of cooling module on carried out special design, ensure that heat conducts quickly, particularly realize continuous coverage in the occasion that environment temperature is higher, ensure that the intensity of installation simultaneously.
3, prevent the absorption of moisture because the present invention adopts and cause the error design of material of measurement to form, therefore can improve the speed of measuring accuracy for gas and measurement.
4, because the present invention arranges good electrical insulative property and electro-magnetic screen function, thus prevent measuring-signal to be subject to electromagnetic interference (EMI) and reduce precision and the reliability of measurement.
5, because the present invention is provided with good design of Sealing Structure and encapsulant, therefore ensure that the measuring error caused because of gas leakage in measurement.
6, because the present invention is designed with rational gas passage, ensure that tested gas arrives measuring unit in time, fast, ensure accuracy and the rapidity of measurement.
7, due to described in each bar of the present invention, thus the beneficial effect during SF6 measurement instrument for trace water device is used is obtained.
8, due to described in each bar of the present invention, thus the beneficial effect overcoming and solve the deficiency, defect and the drawback that exist in existing known technology and real current situation is obtained.
10, due to described in each bar of the present invention, thus obtain design science rationally, simple and ingenious structure, effect stability be reliable, be beneficial to the beneficial effect applied.
Accompanying drawing explanation
Figure of description is the structural representation of the specific embodiment of the invention, sees Fig. 1.
Label in Fig. 1: 1, acting gas pipe joint, 2, base body, 3, cooling module, 4, signal conditioning circuit, 5, Signals Transfer Board, 6 conductive poles.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail.Show as Figure of description 1:
The design of Cold Mirrors method dew point hygrometer base construction, by acting gas pipe joint 1, base body 2, cooling module 3, signal conditioning circuit 4, Signals Transfer Board 5, conductive pole 6 is formed;
Described Cold Mirrors method dew point hygrometer base construction design, acting gas pipe joint 1 and base body 2 are combined by pipe thread and unsintered tape, ensure that turnover and the impermeability of gas, base body 2 and cooling module 3 are at bottom surface close contact and scribble the good heat-conducting silicone grease of heat conduction, ensure that good thermal conductivity, and it is in addition fastening by mechanism, signal conditioning circuit 4 derives pedestal by conductive pole 6, and be directly connected with Signals Transfer Board 5, conductive pole is connected with pedestal and ensures the sealing with pedestal, insulation and intensity, other facing cut square groove of base body 2 and cooling module just right, heat-pipe radiator and fixture are installed herein.
The present invention has carried out property examination on probation after making, through examination on probation, obtain the good result of expection.
The above, be only preferred embodiment of the present invention, not does any pro forma restriction to the present invention; The those of ordinary skill of all industry, all can shown in by specification accompanying drawing and the above, and implement the present invention swimmingly; But all those skilled in the art, are not departing within the scope of technical solution of the present invention, when utilizing disclosed above technology contents, and a little change made, modify with differentiation equivalent variations, be Equivalent embodiments of the present invention; Meanwhile, all according to substantial technological of the present invention to the change of any equivalent variations that above embodiment is done, modify and differentiation etc., all still belong in the scope of technical scheme of the present invention.
Claims (5)
1. a Cold Mirrors method dew point hygrometer base construction design, by acting gas pipe joint 1, base body 2, cooling module 3, signal conditioning circuit 4, Signals Transfer Board 5, conductive pole 6 is formed;
Described Cold Mirrors method dew point hygrometer base construction design, acting gas pipe joint 1 and base body 2 are combined by pipe thread and unsintered tape, ensure that turnover and the impermeability of gas, base body 2 and cooling module 3 are at bottom surface close contact and scribble the good heat-conducting silicone grease of heat conduction, ensure that good thermal conductivity, and it is in addition fastening by mechanism, signal conditioning circuit 4 derives pedestal by conductive pole 6, and be directly connected with Signals Transfer Board 5, conductive pole is connected with pedestal and ensures the sealing with pedestal, insulation and intensity, other facing cut square groove of base body 2 and cooling module just right, heat-pipe radiator and fixture are installed herein.
2. Cold Mirrors method dew point hygrometer base construction design according to claim 1, is characterized in that: acting gas pipe joint 1 and base body 2 are combined by pipe thread and unsintered tape, ensure that turnover and the impermeability of gas.
3. Cold Mirrors method dew point hygrometer base construction according to claim 1 design, is characterized in that: base body 2 and cooling module 3 are at bottom surface close contact and scribble the good heat-conducting silicone grease of heat conduction, ensure that good thermal conductivity, and in addition fastening by mechanism.
4. Cold Mirrors method dew point hygrometer base construction design according to claim 1, it is characterized in that: signal conditioning circuit 4 derives pedestal by conductive pole 6, and be directly connected with Signals Transfer Board 5, conductive pole is connected with pedestal and ensures and the sealing of pedestal, insulation and intensity.
5. Cold Mirrors method dew point hygrometer base construction according to claim 1 design, is characterized in that: other facing cut square groove of base body 2 is just right with cooling module, herein installation heat-pipe radiator and fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165502.4A CN104849313A (en) | 2015-04-10 | 2015-04-10 | Design of chilled mirror method dew point instrument base structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510165502.4A CN104849313A (en) | 2015-04-10 | 2015-04-10 | Design of chilled mirror method dew point instrument base structure |
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| CN104849313A true CN104849313A (en) | 2015-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466969A (en) * | 2015-12-23 | 2016-04-06 | 天津市泓诚泰科技发展有限公司 | Novel precise cold mirror dew-point instrument and air circuit integration module thereof |
| CN106226346A (en) * | 2016-08-30 | 2016-12-14 | 华能国际电力股份有限公司 | Experimental device for be used for visualization of sulphuric acid vapour condensation deposition |
| WO2022120987A1 (en) * | 2020-12-07 | 2022-06-16 | 广州奥松电子有限公司 | Condensation system and dew-point instrument thereof |
Citations (8)
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|---|---|---|---|---|
| US4328455A (en) * | 1978-10-06 | 1982-05-04 | General Eastern Instruments Corporation | Capacitor storage circuit |
| US4335597A (en) * | 1980-03-28 | 1982-06-22 | Eg & G, Inc. | Dew point hygrometer with two cooled reflective surfaces |
| CN2156506Y (en) * | 1993-03-02 | 1994-02-16 | 中国科学院半导体研究所 | Automatic dew point tester |
| CN2179973Y (en) * | 1993-11-29 | 1994-10-19 | 上海新乐环保科技公司 | Photoelectric instrument for investigating dew-point |
| CN201000442Y (en) * | 2007-01-16 | 2008-01-02 | 丁五行 | Intelligentized rapid survey cold mirror dew point hygrometer |
| CN201740754U (en) * | 2010-07-08 | 2011-02-09 | 中国兵器工业集团第五三研究所 | Automatically controlled liquid nitrogen refrigeration type chilled-mirror dew point hygrometer |
| CN102012383A (en) * | 2010-11-19 | 2011-04-13 | 常州大学 | Wireless transmission and image control technology-based SF6 moisture detector |
| CN203490188U (en) * | 2013-09-09 | 2014-03-19 | 上海电控研究所 | High-pressure resistance chilled-mirror dew-point hygrometer |
-
2015
- 2015-04-10 CN CN201510165502.4A patent/CN104849313A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4328455A (en) * | 1978-10-06 | 1982-05-04 | General Eastern Instruments Corporation | Capacitor storage circuit |
| US4335597A (en) * | 1980-03-28 | 1982-06-22 | Eg & G, Inc. | Dew point hygrometer with two cooled reflective surfaces |
| CN2156506Y (en) * | 1993-03-02 | 1994-02-16 | 中国科学院半导体研究所 | Automatic dew point tester |
| CN2179973Y (en) * | 1993-11-29 | 1994-10-19 | 上海新乐环保科技公司 | Photoelectric instrument for investigating dew-point |
| CN201000442Y (en) * | 2007-01-16 | 2008-01-02 | 丁五行 | Intelligentized rapid survey cold mirror dew point hygrometer |
| CN201740754U (en) * | 2010-07-08 | 2011-02-09 | 中国兵器工业集团第五三研究所 | Automatically controlled liquid nitrogen refrigeration type chilled-mirror dew point hygrometer |
| CN102012383A (en) * | 2010-11-19 | 2011-04-13 | 常州大学 | Wireless transmission and image control technology-based SF6 moisture detector |
| CN203490188U (en) * | 2013-09-09 | 2014-03-19 | 上海电控研究所 | High-pressure resistance chilled-mirror dew-point hygrometer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466969A (en) * | 2015-12-23 | 2016-04-06 | 天津市泓诚泰科技发展有限公司 | Novel precise cold mirror dew-point instrument and air circuit integration module thereof |
| CN106226346A (en) * | 2016-08-30 | 2016-12-14 | 华能国际电力股份有限公司 | Experimental device for be used for visualization of sulphuric acid vapour condensation deposition |
| WO2022120987A1 (en) * | 2020-12-07 | 2022-06-16 | 广州奥松电子有限公司 | Condensation system and dew-point instrument thereof |
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