CN201293141Y - Paraffin expansion valve - Google Patents
Paraffin expansion valve Download PDFInfo
- Publication number
- CN201293141Y CN201293141Y CNU200820137620XU CN200820137620U CN201293141Y CN 201293141 Y CN201293141 Y CN 201293141Y CN U200820137620X U CNU200820137620X U CN U200820137620XU CN 200820137620 U CN200820137620 U CN 200820137620U CN 201293141 Y CN201293141 Y CN 201293141Y
- Authority
- CN
- China
- Prior art keywords
- paraffin
- valve
- spool
- push rod
- valve body
- 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
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Abstract
The utility model discloses a paraffin expansion valve comprising a valve body integrating an upper shell and a lower shell, a valve core and paraffin functioning as a medium. The valve body in a cylinder shape is divided into the upper shell and the lower shell so as to be convenient for manufacture and assembly; after the upper shell and the lower shell are integrated into the valve body, the rear end of the valve body is sealed to serve as a bottom plate, and the periphery of the front end is provided with flanges; the middle of a front end cover of the valve body is provided with a hole allowing a push rod to push out; the rear end of the inner cavity of the valve body is provided with the cylindrical valve core, the inside is filled with solid paraffin and the center is provided with a movable mandril which supports against the rear end of the push rod; the periphery of the push rod is sleeved with a return spring; a heating ceramic ring is arranged at the periphery of the valve core and can heat the solid paraffin after being energized, and the heating wire of the heating ceramic ring is connected with a power wire through an energizing plug sheet; and a rubber sealing ring is arranged between the movable mandril and the inner wall of the valve core. The utility model has the advantages that the valve rod is pushed to move by the melted solid paraffin under larger push force, and the valve rod can be pushed to move slowly, thereby the paraffin expansion valve can achieve unexpected effect when being applied to some special occasions and equipment.
Description
Technical field
The utility model relates to the Automatic Control Component field of fluid, refers to that specifically a kind of medium expanded by heating that relies on produces the paraffin expansion valve that Driving force makes the spool action.
Background technique
The fluid automatic control technology is except solenoid valve is played protagonist, and also useful machinery, valve such as pneumatic, electronic are controlled.The Self controlling valve that promotes the spool action is still rare but the dependence medium expands with heat and contract with cold.This mainly is that the selection of dielectric material is difficult.Every this class medium must be to change between solid phase and liquid phase or liquid phase and gas phase, the conversion between optimal certainly still solid phase and the liquid phase, and the fusing point of solid phase is low.Through discovering that paraffin is comparatively desirable promotion medium.Because paraffin is the mixture of solid paraffin hydrocarbon, its proterties odorless, tasteless, fusing point is between 45～60 ℃, belong to low-melting solid matter, very easily melted by heat becomes the bigger liquid paraffin of volume, because its volume increases after fusing, thereby has bigger Driving force.The paraffin expansion valve is exactly the fluid automatically controlled element of simple type that utilizes this performance development of paraffin.
The model utility content
The purpose of this utility model is: to the fluid automation field provide a kind of simple in structure, Driving force is bigger and have energy-conservation autocontrol valve---paraffin expansion valve, to reduce the manufacture cost of some industry equipment.
The technological scheme of the utility model technical solution problem is: the paraffin expansion valve is made of the compound valve body of upper and lower shell, spool and medium paraffin, comprises shell, lower casing, push rod, Returnning spring, movable thimble, spool, heating porcelain circle, seal ring, power connecting sheet and paraffin.To it is characterized in that described valve body is a cylindrical body, in order making with easy to assembly, it to be divided into shell and lower casing, after upper and lower shell was compound, its rear end sealing became base plate, and the front end periphery is provided with mounting flange, and the centre of front cover is provided with and holds the hole that push rod ejects.Rear portion at body cavity is provided with spool, and described spool is hollow cylindrical body, and inside is full of the paraffin that solidifies, and the center is provided with movable thimble, and described movable thimble withstands on the rearward end of push rod, is with Returnning spring in the push rod periphery.Described heating porcelain circle is arranged on the periphery of spool, and heat paraffin the energising back, and its heating line is connected with power line by power connecting sheet.
Be provided with rubber seal ring between the inwall of described movable thimble and spool.
Benefit of the present utility model is to promote valve rod afterwards with melted paraffin wax, can not only obtain bigger Driving force, and its driving velocity can control slowlyer, this is especially suitable at some special occasions, as opening the door slowly, using on the equipment such as slow lifting, can reach beyond thought effect.
Description of drawings
Fig. 1 is a longitudinal sectional view of the present utility model;
Each title and mark among the figure: 1. push rod, 2. lower casing, 3. Returnning spring, 4. movable thimble, 5. power connecting sheet, 6. seal ring, 7. spool, 8. paraffin, 9. heating porcelain circle, 10. go up shell.
Embodiment
As shown in Figure 1, the paraffin expansion valve is made of last shell 10 and lower casing 2 compound valve body, spool 7 and medium paraffin 8, and described valve body is a cylindrical body, in order to make with easy to assembly, it is divided into shell 10 and lower casing 2.After upper and lower shell was compound, its rear end sealing became base plate, and the front end periphery is provided with mounting flange, and the centre of front cover is provided with and holds the hole that push rod 1 ejects.Be provided with spool 7 at the rear portion of body cavity.Described spool 7 is hollow cylindrical body, and inside is full of the paraffin 8 that solidifies, and the center is provided with movable thimble 4, and described movable thimble 4 withstands on the rearward end of push rod 1, is with Returnning spring 3 in push rod 1 periphery.Be provided with rubber seal ring 6 between the inwall of movable thimble 4 and spool 7.Heating porcelain circle 9 is arranged on the periphery of spool 7, and its heating line is connected with power line by power connecting sheet 5.
The paraffin expansion valve is when installing and using, and behind power connection, heating porcelain circle 9 begins heating, with 8 fusings of the paraffin in the spool 7, the liquid paraffin volumetric expansion after the fusing outwards ejects movable thimble 4, movable thimble 4 is released push rod 1 again, thereby makes the work of paraffin expansion valve.After automatic control system instruction heating porcelain circle 9 stops heating power, the paraffin 8 cooling retractions of fusing, Returnning spring 3 resets push rod 1 and retreats, and makes the spool 7 of paraffin expansion valve get back to the initialization state again.
Claims (3)
1. paraffin expansion valve, by valve body, spool (7) and medium paraffin (8) constitute, comprise shell (10), lower casing (2), push rod (1), Returnning spring (3), movable thimble (4), spool (7), heating porcelain circle (9), seal ring (6), power connecting sheet (5) and solid paraffin (8), it is characterized in that described valve body is by last shell (10) and the compound formation of lower casing (2), its rear end sealing, become base plate, the front end periphery is provided with mounting flange, the centre of front cover is provided with and holds the hole that push rod (1) ejects, be provided with spool (7) at the rear portion of body cavity, described spool (7) is hollow cylindrical body, inside is full of the paraffin (8) that solidifies, central authorities are provided with movable thimble (4), and described movable thimble (4) withstands on the rearward end of push rod (1), are with Returnning spring (3) in push rod (1) periphery.
2. paraffin expansion valve as claimed in claim 1 is characterized in that described heating porcelain circle (9) is arranged on the periphery of spool (7), and the heating line that paraffin (8) is heated is connected with power line by power connecting sheet (5).
3. paraffin expansion valve as claimed in claim 1 is characterized in that being provided with rubber seal ring (6) between the inwall of described movable thimble (4) and spool (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820137620XU CN201293141Y (en) | 2008-09-16 | 2008-09-16 | Paraffin expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820137620XU CN201293141Y (en) | 2008-09-16 | 2008-09-16 | Paraffin expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201293141Y true CN201293141Y (en) | 2009-08-19 |
Family
ID=41006619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820137620XU Expired - Fee Related CN201293141Y (en) | 2008-09-16 | 2008-09-16 | Paraffin expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201293141Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537635A (en) * | 2010-10-28 | 2012-07-04 | 现代自动车株式会社 | Relief valve for oil pump |
| CN102777673A (en) * | 2012-02-14 | 2012-11-14 | 浙江三花股份有限公司 | Electric heating temperature control valve |
| CN103195973A (en) * | 2012-01-06 | 2013-07-10 | 贵州大学 | Adaptive control method and device of water temperature in water tank |
| CN108993707A (en) * | 2018-07-20 | 2018-12-14 | 芜湖康奇制药有限公司 | A kind of cracker for medicine uses temperature detect switch (TDS) |
| WO2019165740A1 (en) * | 2018-02-27 | 2019-09-06 | 清华大学 | Adjustable mechanical sealing device |
| CN111795230A (en) * | 2020-08-10 | 2020-10-20 | 夏新强 | Smoke exhaust pipe mounting structure for range hood |
-
2008
- 2008-09-16 CN CNU200820137620XU patent/CN201293141Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537635A (en) * | 2010-10-28 | 2012-07-04 | 现代自动车株式会社 | Relief valve for oil pump |
| CN102537635B (en) * | 2010-10-28 | 2016-07-13 | 现代自动车株式会社 | Air relief valve for oil pump |
| CN103195973A (en) * | 2012-01-06 | 2013-07-10 | 贵州大学 | Adaptive control method and device of water temperature in water tank |
| CN103195973B (en) * | 2012-01-06 | 2016-04-13 | 贵州大学 | The self-adaptation control method of water tank water temperature and device |
| CN102777673A (en) * | 2012-02-14 | 2012-11-14 | 浙江三花股份有限公司 | Electric heating temperature control valve |
| WO2019165740A1 (en) * | 2018-02-27 | 2019-09-06 | 清华大学 | Adjustable mechanical sealing device |
| CN108993707A (en) * | 2018-07-20 | 2018-12-14 | 芜湖康奇制药有限公司 | A kind of cracker for medicine uses temperature detect switch (TDS) |
| CN111795230A (en) * | 2020-08-10 | 2020-10-20 | 夏新强 | Smoke exhaust pipe mounting structure for range hood |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090819 Termination date: 20110916 |