CN202945312U - Nitrogen determination sampling pipe structure of nitriding furnace - Google Patents
Nitrogen determination sampling pipe structure of nitriding furnace Download PDFInfo
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- CN202945312U CN202945312U CN 201220549885 CN201220549885U CN202945312U CN 202945312 U CN202945312 U CN 202945312U CN 201220549885 CN201220549885 CN 201220549885 CN 201220549885 U CN201220549885 U CN 201220549885U CN 202945312 U CN202945312 U CN 202945312U
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- pipe
- screwed pipe
- sealing ring
- furnace
- cooling chamber
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Abstract
The utility model provides a nitrogen determination sampling pipe structure of a nitriding furnace. The nitrogen determination sampling pipe structure comprises a screwed pipe, a pull rod, a pull rod bearing plate, a sealing ring, a cooling chamber and a connecting pipe, wherein the screwed pipe comprises an internal screwed pipe and an external screwed pipe, and the internal screwed pipe is sleeved on the external screwed pipe by a thread structure; the pull rod bearing plate is fixed on the top of the external screwed pipe; the sealing ring is sleeved at the terminal end of the external screwed pipe; the cooling chamber is fixed below the sealing ring, and the connecting pipe is fixed in the cooling chamber; and the pull rod penetrates through the pull rod bearing plate and is fixed in the external screwed pipe. The nitrogen determination sampling pipe structure of the nitriding furnace has the characteristics that the sealing ring is not directly contacted with the atmosphere in the furnace and is kept away from the influence of high temperature in a furnace tube, so the service life of the sealing ring is greatly prolonged; besides, the sealing ring is sleeved outside the internal screwed pipe, so the possibility that the sealing ring falls into the furnace when the sampling tube is opened is avoided, the consumption of spare parts of the furnace is reduced, and the operation intensity of workers is reduced; and moreover, the manufacturing is simple, the structure is reasonable, and the structure can be popularized and applied in the production on a large scale.
Description
Technical field
The utility model relates to the interior stopple coupon structure in controlled atmosphere generator field, particularly controlled atmosphere nitriding furnace.
Background technology
Existing well formula nitriding furnace adopts to arrange on bell more to be decided the nitrogen stopple coupon and comes nitrogen gesture in analytical furnace, sample is fixed on pull bar during analysis, sample is proposed in nitrogen stopple coupon insertion stove by decide.For guaranteeing furnace pressure, stopple coupon adopts the clip clamping flange more, and the centre adds the rubber sheet gasket sealing.Because rubber sheet gasket contacts with furnace atmosphere all the time, and be in the furnace high-temperature state, in use easily oxidation causes seal failure; When opening stopple coupon, the easy shrinkage strain of rubber sheet gasket is fallen in stove.Affected by above-mentioned factor, the stopple coupon sealing-ring needs frequent replacing in actual use, and easily causes stove gas leakage, has increased workman's manipulation strength, is unfavorable for the equipment smooth long term running.
The utility model content
The technical problems to be solved in the utility model is to overcome existing defective, provides a kind of novel nitriding furnace to decide nitrogen stopple coupon structure, opens sealing-ring and furnace atmosphere are isolated, increases the work-ing life of sealing-ring, stops sealing-ring and falls into possibility in stove.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
A kind of nitriding furnace is decided nitrogen stopple coupon structure, comprises that described threaded pipe comprises rifled tube and male-pipe by threaded pipe, pull bar, pull bar bearing plate, sealing-ring, cooling chamber and pipe connecting, and rifled tube is sleeved on male-pipe by helicitic texture; Described pull bar bearing plate is fixed on the top of male-pipe; Described ring set is at the male-pipe end; Described cooling chamber is fixed in below sealing-ring, and the cooling chamber internal layer is fixed with pipe connecting; Described pull bar passes the pull bar bearing plate and is fixed in male-pipe.
Further, described cooling chamber is the water cooling chamber.
Further, described sealing-ring is rubber seal.
Further, described pull bar is the pull bar that annular is arranged at the top.
The utility model is that a kind of nitriding furnace is decided nitrogen stopple coupon structure, and sealing-ring does not directly contact with furnace atmosphere, avoids the temperatures involved in boiler tube, and the sealing-ring life-span increases greatly; Simultaneously, because sealing-ring is enclosed within the threaded pipe outside, when having stopped to open stopple coupon, sealing-ring is fallen into the possibility in stove, has reduced the loss of stove spare part, has reduced workman's manipulation strength, and it is reasonable to make simple structure, can large-scale promotion application in producing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present utility model, and consists of the part of specification sheets, is used from explanation the utility model with embodiment one of the present utility model, does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is that a kind of nitriding furnace of the utility model is decided the sectional view of nitrogen stopple coupon structure.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the utility model, and be not used in restriction the utility model.
As shown in Figure 1, a kind of nitriding furnace is decided nitrogen stopple coupon structure, comprises by rifled tube 1, pull bar 2, pull bar bearing plate 3, male-pipe 4, sealing-ring 5, cooling chamber 6 and pipe connecting 7.Described threaded pipe comprises rifled tube 1 and male-pipe 4, and rifled tube 1 is sleeved on male-pipe 4 by helicitic texture; Described pull bar bearing plate 3 is fixed on the top of male-pipe 4; Described sealing-ring 5 is sleeved on male-pipe 4 ends; Described cooling chamber 6 is fixed in sealing-ring 5 belows, and cooling chamber 6 internal layers are fixed with pipe connecting 7; Described pull bar 2 passes pull bar bearing plate 3 and is fixed in male-pipe 4; Described cooling chamber 6 is the water cooling chamber; Described sealing-ring 5 is rubber seal; Described pull bar 2 has the pull bar of annular for the top.
A kind of nitriding furnace of the utility model is decided nitrogen stopple coupon structure, and sealing-ring does not directly contact with furnace atmosphere, avoids the temperatures involved in boiler tube, and the sealing-ring life-span increases greatly; Simultaneously, because sealing-ring is enclosed within the male-pipe outside, when having stopped to open stopple coupon, sealing-ring is fallen into the possibility in stove, has reduced the loss of stove spare part, has reduced workman's manipulation strength, and it is reasonable to make simple structure, can large-scale promotion application in producing.
The above is only preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment, the utility model is had been described in detail, for a person skilled in the art, it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a nitriding furnace is decided nitrogen stopple coupon structure, comprise by threaded pipe, pull bar, pull bar bearing plate, sealing-ring, cooling chamber and pipe connecting, it is characterized in that: described threaded pipe comprises rifled tube and male-pipe, and rifled tube is sleeved on male-pipe by helicitic texture;
Described pull bar bearing plate is fixed on the top of male-pipe;
Described ring set is at the male-pipe end;
Described cooling chamber is fixed in below sealing-ring, and the cooling chamber internal layer is fixed with pipe connecting;
Described pull bar passes the pull bar bearing plate and is fixed in male-pipe.
2. a kind of nitriding furnace according to claim 1 is decided nitrogen stopple coupon structure, it is characterized in that: described cooling chamber is the water cooling chamber.
3. a kind of nitriding furnace according to claim 1 is decided nitrogen stopple coupon structure, it is characterized in that: described sealing-ring is rubber seal.
4. a kind of nitriding furnace according to claim 1 is decided nitrogen stopple coupon structure, it is characterized in that: described pull bar is the pull bar that annular is arranged at the top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549885 CN202945312U (en) | 2012-10-23 | 2012-10-23 | Nitrogen determination sampling pipe structure of nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220549885 CN202945312U (en) | 2012-10-23 | 2012-10-23 | Nitrogen determination sampling pipe structure of nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202945312U true CN202945312U (en) | 2013-05-22 |
Family
ID=48421019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220549885 Expired - Lifetime CN202945312U (en) | 2012-10-23 | 2012-10-23 | Nitrogen determination sampling pipe structure of nitriding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202945312U (en) |
-
2012
- 2012-10-23 CN CN 201220549885 patent/CN202945312U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |
|
| CX01 | Expiry of patent term |