CN204805713U - A low temperature pole support for low temperature valve - Google Patents
A low temperature pole support for low temperature valve Download PDFInfo
- Publication number
- CN204805713U CN204805713U CN201520456485.5U CN201520456485U CN204805713U CN 204805713 U CN204805713 U CN 204805713U CN 201520456485 U CN201520456485 U CN 201520456485U CN 204805713 U CN204805713 U CN 204805713U
- Authority
- CN
- China
- Prior art keywords
- bellows
- low temperature
- valve
- rack body
- valve rod
- 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 - Fee Related
Links
Landscapes
- Diaphragms And Bellows (AREA)
Abstract
The utility model discloses a low temperature pole support for low temperature valve, support body including the hollow circular cylinder, be equipped with the bellows in the cavity, be equipped with the metal seal piece between the top of bellows and cavity, be equipped with the sealing rubber layer between bellows and fixation nut, inner wall at the support body is equipped with middle part bellows, be equipped with the support lid at the top of support body, be equipped with the heat preservation packing layer between middle part bellows and support body, the valve rod sets up in the bellows of middle part, be equipped with the sealed piece of metal screens between valve rod and bellows, the sealed piece butt of metal screens is on the valve body. The utility model has the advantages of simple structure, convenient to use is swift, can effectually prevent medium from the clearance leakage of valve body and valve rod, and it is strong to prevent leaking the performance, and sealing performance is good, can effectively prevent external leakage, and the suitability is good, and the practicality is strong.
Description
Technical field
The utility model belongs to low temperature valve accessory technical field, is specifically related to a kind of low temperature shaft bar for low temperature valve.
Background technique
Subzero valve is more extensively widely used in petrochemical industry due to its operating temperature range, the fields such as air separation, the Subzero valve of prior art is mainly by valve body, valve rod and spool composition, between valve body and valve rod, the general rubber seal that uses seals, although it can realize sealing to a certain extent, but due to the high temperature resistant of rubber seal or the poor-performing of resistance to ultralow temperature, the sealability of Subzero valve can be affected to a certain extent, and during cryogenic liquide gasification, the pore pressure between valve body and valve rod can be made to rise suddenly, easily from the clearance leakage between valve body and valve rod, also filler can be caused to lose efficacy simultaneously, affect its working life, applicability and practicability poor, be difficult to the demand meeting market.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, the good and low temperature shaft bar for low temperature valve that sealability is strong of stability in use.
The technological scheme realizing the utility model object is a kind of low temperature shaft bar for low temperature valve, comprise the rack body of hollow circular cylinder, the bottom of described rack body is connected with valve body, valve rod is arranged in the hollow circular cylinder of rack body, cavity is provided with in the bottom of described rack body, bellows is provided with in described cavity, metal sealing block is provided with between the top and cavity of described bellows, the bottom welding of described bellows to be fixed on valve body and to be provided with set screw nut in the bottom of rack body and the outer wall of valve body, caulking gum layer is provided with between described bellows and set screw nut, middle part seal bellows is provided with at the inwall of described rack body, bracket cover is provided with at the top of rack body, metal press block is provided with between the bottom of described middle part seal bellows and the inwall of rack body, top and the described bracket cover of described middle part seal bellows are welded and fixed, insulation packing layer is provided with between described middle part seal bellows and rack body, valve rod is arranged in the seal bellows of middle part, metal screens sealing block is provided with between described valve rod and bellows, described metal screens sealing block is connected on valve body.
Metallic packing is provided with between described metal press block and rack body.
Sealing rubber ring is provided with between described bracket cover and rack body.
The utility model has positive effect: structure of the present utility model is simple, convenient to use, low temperature shaft bar is provided with in the outside of valve body, and valve rod is arranged in low temperature shaft bar, and the bottom of low temperature shaft bar is fixed on valve body by bellows-welding, outer wall adopts nut seal simultaneously, caulking gum layer is provided with between nut and bellows, it effectively can reach sealing effect by bellows, the seal temperature scope of bellows is wider simultaneously, improve the Applicable scope of valve body to a certain extent, fitted seal rubber layer simultaneously, reach dual layer sealing effect, in the inwall of stake body, be provided with middle part seal bellows simultaneously, it coordinates valve rod, can effectively prevent medium from the clearance leakage of valve body and valve rod, anti-leak performance is strong, good seal performance, between middle part seal bellows and rack body, be provided with insulation packing layer simultaneously, even if there is dielectric leakage in the gap of valve body and valve rod, also the thermal-insulating sealing can imitated in the seal bellows of middle part, can effectively prevent to external leakage, applicability is good, practical.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein:
Fig. 1 is structural representation of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is structural representation of the present utility model.
See Fig. 1, a kind of low temperature shaft bar for low temperature valve, comprise the rack body 1 of hollow circular cylinder, the bottom of described rack body 1 is connected with valve body 2, valve rod 3 is arranged in the hollow circular cylinder of rack body 1, cavity 4 is provided with in the bottom of described rack body 1, bellows 5 is provided with in described cavity 4, metal sealing block 6 is provided with between the top and cavity 4 of described bellows 5, the bottom welding of described bellows 5 to be fixed on valve body 2 and to be provided with set screw nut 7 at the outer wall of the bottom of rack body 1 and valve body 2, caulking gum layer 8 is provided with between described bellows 5 and set screw nut 7, middle part seal bellows 9 is provided with at the inwall of described rack body 1, bracket cover 10 is provided with at the top of rack body 1, metal press block 11 is provided with between the bottom of described middle part seal bellows 9 and the inwall of rack body 1, top and the described bracket cover 10 of described middle part seal bellows 9 are welded and fixed, be provided with between described middle part seal bellows 9 and rack body 1 and be incubated packing layer 12, valve rod 3 is arranged in the seal bellows 9 of middle part, metal screens sealing block 13 is provided with between described valve rod 3 and bellows 5, described metal screens sealing block 13 is connected on valve body 2.
Metallic packing 14 is provided with between described metal press block 11 and rack body 1.
Sealing rubber ring 15 is provided with between described bracket cover 10 and rack body 1.
Structure of the present utility model is simple, convenient to use, low temperature shaft bar is provided with in the outside of valve body, and valve rod is arranged in low temperature shaft bar, and the bottom of low temperature shaft bar is fixed on valve body by bellows-welding, outer wall adopts nut seal simultaneously, caulking gum layer is provided with between nut and bellows, it effectively can reach sealing effect by bellows, the seal temperature scope of bellows is wider simultaneously, improve the Applicable scope of valve body to a certain extent, fitted seal rubber layer simultaneously, reach dual layer sealing effect, in the inwall of stake body, be provided with middle part seal bellows simultaneously, it coordinates valve rod, can effectively prevent medium from the clearance leakage of valve body and valve rod, anti-leak performance is strong, good seal performance, between middle part seal bellows and rack body, be provided with insulation packing layer simultaneously, even if there is dielectric leakage in the gap of valve body and valve rod, also the thermal-insulating sealing can imitated in the seal bellows of middle part, can effectively prevent to external leakage, applicability is good, practical.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all mode of executions.And these belong to connotation of the present utility model the apparent change of extending out or variation still belong to protection domain of the present utility model.
Claims (3)
1. the low temperature shaft bar for low temperature valve, comprise the rack body of hollow circular cylinder, the bottom of described rack body is connected with valve body, valve rod is arranged in the hollow circular cylinder of rack body, it is characterized in that: be provided with cavity in the bottom of described rack body, bellows is provided with in described cavity, metal sealing block is provided with between the top and cavity of described bellows, the bottom welding of described bellows to be fixed on valve body and to be provided with set screw nut in the bottom of rack body and the outer wall of valve body, caulking gum layer is provided with between described bellows and set screw nut, middle part seal bellows is provided with at the inwall of described rack body, bracket cover is provided with at the top of rack body, metal press block is provided with between the bottom of described middle part seal bellows and the inwall of rack body, top and the described bracket cover of described middle part seal bellows are welded and fixed, insulation packing layer is provided with between described middle part seal bellows and rack body, valve rod is arranged in the seal bellows of middle part, metal screens sealing block is provided with between described valve rod and bellows, described metal screens sealing block is connected on valve body.
2. the low temperature shaft bar for low temperature valve according to claim 1, is characterized in that: between described metal press block and rack body, be provided with metallic packing.
3. the low temperature shaft bar for low temperature valve according to claim 2, is characterized in that: between described bracket cover and rack body, be provided with sealing rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456485.5U CN204805713U (en) | 2015-06-23 | 2015-06-23 | A low temperature pole support for low temperature valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520456485.5U CN204805713U (en) | 2015-06-23 | 2015-06-23 | A low temperature pole support for low temperature valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805713U true CN204805713U (en) | 2015-11-25 |
Family
ID=54590539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520456485.5U Expired - Fee Related CN204805713U (en) | 2015-06-23 | 2015-06-23 | A low temperature pole support for low temperature valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805713U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612851A (en) * | 2018-06-25 | 2018-10-02 | 山东阿尔普尔节能装备有限公司 | A kind of ultralow temperature Screw chiller control valve |
| CN114508626A (en) * | 2022-03-08 | 2022-05-17 | 铜陵山海智能制造有限公司 | Heat preservation type valve rod and using method thereof |
-
2015
- 2015-06-23 CN CN201520456485.5U patent/CN204805713U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612851A (en) * | 2018-06-25 | 2018-10-02 | 山东阿尔普尔节能装备有限公司 | A kind of ultralow temperature Screw chiller control valve |
| CN114508626A (en) * | 2022-03-08 | 2022-05-17 | 铜陵山海智能制造有限公司 | Heat preservation type valve rod and using method thereof |
| CN114508626B (en) * | 2022-03-08 | 2024-03-29 | 铜陵山海智能制造有限公司 | Thermal insulation valve rod and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204805713U (en) | A low temperature pole support for low temperature valve | |
| CN104613047A (en) | Leakage-proof pressure-bearing hydraulic cylinder | |
| CN201539563U (en) | Improved piston rod seal U-shaped ring | |
| CN203286123U (en) | Valve rod sealing ring with metal spring | |
| CN203395360U (en) | Composite filler sealing structure used for ultrahigh-pressure valve | |
| CN204114227U (en) | A kind of novel fluorine-lined membrane valve | |
| CN204299721U (en) | A kind of valve mechanism cover hermetically-sealed construction | |
| CN204922043U (en) | Throttle valve clack | |
| CN204784949U (en) | Be applied to gland of gate valve | |
| CN208397543U (en) | A kind of rapid-maintenance pipeline leakage device | |
| CN202629113U (en) | Rubber valve seat of butterfly valve | |
| CN204061927U (en) | Airbag sealed type low temperature valve | |
| CN206257098U (en) | Piston rod sealing ring | |
| CN206626220U (en) | Tubular low-pressure big flow two-way valve | |
| CN205090077U (en) | Valve shaft seal cover | |
| CN203548949U (en) | Pressing cap type needle valve | |
| CN204878933U (en) | Shipbuilding is with preventing corroding butterfly valve | |
| CN204267851U (en) | A kind of packing of gate valve structure | |
| CN205078822U (en) | High inclosed plug valve | |
| CN201902682U (en) | Stop valve of corrugated pipe | |
| CN204176121U (en) | Tongs press type sealed type low temperature valve | |
| CN204175705U (en) | A kind of anti-leak oil hydraulic cylinder | |
| CN201209584Y (en) | Sealing device for water pump | |
| CN204226738U (en) | Gas control seal valve seat type tee ball valve | |
| CN203285991U (en) | Electromagnet sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |