CN202133485U - Thermocouple double layer seal structure - Google Patents
Thermocouple double layer seal structure Download PDFInfo
- Publication number
- CN202133485U CN202133485U CN201120139449U CN201120139449U CN202133485U CN 202133485 U CN202133485 U CN 202133485U CN 201120139449 U CN201120139449 U CN 201120139449U CN 201120139449 U CN201120139449 U CN 201120139449U CN 202133485 U CN202133485 U CN 202133485U
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- CN
- China
- Prior art keywords
- galvanic couple
- thermocouple
- thermopair
- seat
- seal structure
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a thermocouple double layer seal structure, comprising a double layer seal structure, wherein inside a galvanic couple seat there is provided a corundum pipe thermocouple, the inner end of the corundum pipe thermocouple is equipped with a gland nut screwed and fixed through a spiral clamp, the, the corundum pipe thermocouple of the inner side of the gland nut is sleeved by a pressure pad, outside the pressure pad there is provided a seal pad to form a first layer seal structure, the galvanic couple wire of the end portion of the corundum pipe thermocouple passes through a thermocouple porcelain seat and is connected to the inner end of a binding post, one side of a connector is provided with a seal ring, the outer side of a whole galvanic couple seat is provided with a flange cover pressed tightly, the galvanic couple seat is connected with the connector, the joint of the galvanic couple seat and the connector is provided with an O shaped seal ring to form a second layer seal structure. The beneficial effects of the utility model are that the thermocouple double layer seal structure can ensure that external air can not enter into a furnace body due to the fracture of a thermocouple protective sleeve, increase the service life of a vacuum furnace and reduce the maintenance cost, by using the double layer seal structure.
Description
Technical field
The utility model relates to vacuum heat treatment technology, relates in particular to a kind of thermopair double-layer sealing structure.
Background technology
Existing vacuum heat treatment furnace thermocouple assembly is made up of the individual layer hermetically-sealed construction, promptly is made up of gland nut, pressure pad, sealing gasket, idol seat, alundum tube thermopair.Therefore, thermocouple assembly adopts the mode of individual layer sealing, relies on screwing of gland nut, compresses sealing gasket, reaches the sealing effectiveness to thermocouple assembly; Because the thermocouple protection cover is an alundum tube, in use fracture easily can cause gas leak phenomenon in breaks; Influence the normal use of vacuum drying oven; Especially under the vacuum drying oven normal operating conditions, because of in the stove being the high-temperature vacuum state, extraneous air gets in the vacuum furnace body; Can cause the havoc to vacuum drying oven heating chamber and processed workpiece, this structure need be improved.
The utility model content
To above defective, the purpose of the utility model provides a kind of thermopair double-layer sealing structure, through the employing double-layer sealing structure, thereby improves the problem of leaking gas because of the fracture of thermocouple protection cover.
For realizing above-mentioned purpose, the utility model is realized through following technical scheme:
A kind of thermopair double-layer sealing structure comprises the two-layer hermetically-sealed construction of being made up of galvanic couple seat, alundum tube thermopair, gland nut, junction block:
Said galvanic couple seat inside is provided with the alundum tube thermopair; Alundum tube thermopair inner end is installed gland nut and is tightened through the spiral clip; Be with pressure pad on the alundum tube thermopair of this gland nut inboard, this pressure pad outer setting sealing gasket forms the ground floor hermetically-sealed construction;
The galvanic couple silk of said alundum tube thermopair end passes thermopair porcelain seat and is connected to binding post the inner; Junction block one side is provided with O-ring seal; Whole galvanic couple seat outside is provided with blind flange and compresses; Said galvanic couple seat is connected with Connection Block and joint place is provided with the O RunddichtringO, forms second layer hermetically-sealed construction.
The beneficial effect of the described thermopair double-layer sealing structure of the utility model is: adopt double-layer sealing structure, guaranteed that extraneous air can not improve the serviceable life of vacuum drying oven because of the fracture of thermocouple protection cover gets into body of heater, has reduced maintenance cost.
Description of drawings
According to embodiment and accompanying drawing the utility model is done further explain below.
Fig. 1 is the structural representation of the said thermopair double-layer sealing structure of the utility model embodiment.
Among the figure:
1, binding post; 2, small sealing ring; 3, pressure pad; 4, sealing gasket; 5, galvanic couple seat; 6, alundum tube thermopair; 7, Connection Block; 8, O RunddichtringO; 9, gland nut; 10, spiral clip; 11, little sealing gasket; 12, thermopair porcelain seat; 13, O-ring seal; 14, junction block; 15, blind flange; 16, protective cover.
Embodiment
As shown in Figure 1; The described thermopair double-layer sealing structure of the utility model; Comprise galvanic couple seat 5, alundum tube thermopair 6, gland nut 9, junction block 14, blind flange 15; Said galvanic couple seat 5 is welded on the body of heater and its inside is provided with alundum tube thermopair 6, and said alundum tube thermopair 6 inner ends are installed gland nut 9 and are tightened through spiral clip 10, are with pressure pad 3 on the alundum tube thermopair 6 of these gland nut 9 inboards; These pressure pad 3 outer setting double-layer seal pads 4, thus reach the ground floor sealing effectiveness through above structure; The galvanic couple silk of alundum tube thermopair 6 ends passes thermopair porcelain seat 12 and is connected to binding post 1 the inner; 14 assemblings of said binding post 1 and junction block be connected and the two between be with small sealing ring 2; Thermopair porcelain seat 12 is with little sealing gasket 11 with alundum tube thermopair 6 connecting portions; Junction block 14 1 sides are provided with O-ring seal 13, and whole galvanic couple seat 5 outsides are provided with blind flange 15 and through web member its assembling are compressed, and said galvanic couple seat 5 is connected with Connection Block 7 and joint place is provided with O RunddichtringO 8; Thereby form second layer hermetically-sealed construction, blind flange 15 outsides are provided with protective cover 16 and are screwed.
Claims (1)
1. a thermopair double-layer sealing structure comprises the two-layer hermetically-sealed construction of being made up of galvanic couple seat (5), alundum tube thermopair (6), gland nut (9), junction block (14), it is characterized in that:
Said galvanic couple seat (5) inside is provided with alundum tube thermopair (6); Alundum tube thermopair (6) inner end is installed gland nut (9) and is tightened through spiral clip (10); Be with pressure pad (3) on the alundum tube thermopair (6) of this gland nut (9) inboard; This pressure pad (3) outer setting sealing gasket (4) forms the ground floor hermetically-sealed construction;
The galvanic couple silk of said alundum tube thermopair (6) end passes thermopair porcelain seat (12) and is connected to binding post (1) the inner; Junction block (14) one sides are provided with O-ring seal (13); Whole galvanic couple seat (5) outside is provided with blind flange (15) and compresses; Said galvanic couple seat (5) is connected with Connection Block (7) and joint place is provided with O RunddichtringO (8), forms second layer hermetically-sealed construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120139449U CN202133485U (en) | 2011-05-05 | 2011-05-05 | Thermocouple double layer seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120139449U CN202133485U (en) | 2011-05-05 | 2011-05-05 | Thermocouple double layer seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202133485U true CN202133485U (en) | 2012-02-01 |
Family
ID=45522251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120139449U Expired - Lifetime CN202133485U (en) | 2011-05-05 | 2011-05-05 | Thermocouple double layer seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202133485U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236738A (en) * | 2014-09-29 | 2014-12-24 | 江苏大学 | System and method for measuring temperature in formwork in process of directional solidification in real time |
| CN106644135A (en) * | 2015-10-28 | 2017-05-10 | 沈阳沈真真空技术有限责任公司 | Thermocouple temperature-measuring device for vacuum furnace |
-
2011
- 2011-05-05 CN CN201120139449U patent/CN202133485U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104236738A (en) * | 2014-09-29 | 2014-12-24 | 江苏大学 | System and method for measuring temperature in formwork in process of directional solidification in real time |
| CN106644135A (en) * | 2015-10-28 | 2017-05-10 | 沈阳沈真真空技术有限责任公司 | Thermocouple temperature-measuring device for vacuum furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Thermocouple double layer seal structure Effective date of registration: 20130820 Granted publication date: 20120201 Pledgee: Industrial Commercial Bank of China Ltd Beijing Daxing Branch Pledgor: BEIJING HUAHAI ZHONGYI INDUSTRIAL FURNACES CO., LTD. Registration number: 2013990000597 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20141017 Granted publication date: 20120201 Pledgee: Industrial Commercial Bank of China Ltd Beijing Daxing Branch Pledgor: BEIJING HUAHAI ZHONGYI INDUSTRIAL FURNACES CO., LTD. Registration number: 2013990000597 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Thermocouple double layer seal structure Effective date of registration: 20141020 Granted publication date: 20120201 Pledgee: Industrial Commercial Bank of China Ltd Beijing Daxing Branch Pledgor: BEIJING HUAHAI ZHONGYI INDUSTRIAL FURNACES CO., LTD. Registration number: 2014990000865 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 102600 Beijing city Daxing District Huangcun magnetic Gezhuang South six loop overpass bridge 200 meters (Middle Road East) Patentee after: Beijing Huahai Huayi energy saving Polytron Technologies Inc Address before: 102600 Beijing city Daxing District Sun Village Industrial Zone Wei Lu Dong magnetic 200 meters Patentee before: BEIJING HUAHAI ZHONGYI INDUSTRIAL FURNACES CO., LTD. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120201 |