CN2849385Y - Vacuum safety valve for vacuum boiler - Google Patents
Vacuum safety valve for vacuum boiler Download PDFInfo
- Publication number
- CN2849385Y CN2849385Y CN 200520051733 CN200520051733U CN2849385Y CN 2849385 Y CN2849385 Y CN 2849385Y CN 200520051733 CN200520051733 CN 200520051733 CN 200520051733 U CN200520051733 U CN 200520051733U CN 2849385 Y CN2849385 Y CN 2849385Y
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- CN
- China
- Prior art keywords
- valve
- guide rod
- valve body
- vacuum
- boiler
- 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 vacuum safety valve for a vacuum boiler, which comprises a valve body (3), wherein the top is provided with a valve cover (6). One side of the valve body (3) is provided with a middle connecting tube (10), and the bottom of the valve body (3) is provided with a valve seat (1). A valve core (2) is arranged in the valve body (3), wherein the sealing surface of the valve core (2) is a spherical surface, and the sealing surface and an upper port of the valve seat (1) form a spherical surface linear sealing structure. A temperature resistant silicon rubber sealing layer (11) is arranged on the outer surface of the valve body, and the valve core (2) which only can follow a guide rod (4) to do axial move is connected with the lower end of the guide rod (4). The upper part of the guide rod (4) is installed in a guide rod seat (8) on the top of the valve body (3), wherein the top of the guide rod (4) is provided with a handwheel (7). Both ends of a guide pin (5) which is radially arranged on the guide rod (4) are respectively arranged in vertical pin grooves (9) at both corresponding sides of the guide rod seat. The upper ends of the vertical pin grooves (9) are provided with openings. The vacuum safety valve for a vacuum boiler has simple structure, convenient fabrication, long service life and simple operation.
Description
Technical field
The utility model relates to a kind of antivoid valve.
Background technique
Vacuum boiler imports China the beginning of the eighties in last century into from about so far 40 years history of invention, existing so far tens manufacturers.Vacuum furnace has many advantages, but there are many difficult problems in manufacturing process, examination requirements, safety valve pattern, vacuum degree control, maximization structural design etc., influenced the development of vacuum furnace, it is multiple that wherein safety valve has explosion chip, heavy hammer type etc., all has problems such as blowing out replacing or sealing effect shortcoming or operation inconvenience in various degree.
The model utility content
The technical problems to be solved in the utility model is, the deficiency at prior art exists designs a kind of antivoid valve that is used for vacuum boiler, has simple in structure, manufacturing and easy to operate, long service life, practical characteristics.
Technical solution of the present utility model is, the described antivoid valve that is used for vacuum boiler comprises that the valve body of valve gap is arranged at the top, this valve body one side has the middle part to take over and valve seat is arranged at the bottom, its structural feature is, be provided with sealing surface in the described valve body and be sphere and form the spool of sphere linear sealing structure with the valve seat upper end-hole, outer surface is provided with the heat-resistant silicon rubber sealant and can only makes axially movable described spool with guide rod and connects with the guide rod lower end, the top that the described guide rod of handwheel is equipped with at the top is installed in the guiding pole socket at valve body top, and the two ends of the guide finger that radially is provided with on the guide rod place the vertical cotter way of guiding pole socket respective sides respectively, and described cotter way upper end is uncovered.
Below make and further specifying.
The utility model comprises that the valve body 3 of valve gap 6 is arranged at the top, these valve body 3 one sides have the middle part to take over 10 and valve seat 1 is arranged at the bottom, its structural feature is, be provided with sealing surface in the described valve body 3 and be sphere and form the spool 2 of sphere linear sealing structure with valve seat 1 upper end-hole, outer surface be provided with heat-resistant silicon rubber sealant 11 and can only do axially with guide rod 4 (be among Fig. 1 on, lower direction) mobile described spool 2 connects with guide rod 4 lower ends, the top that the described guide rod 4 of handwheel 7 is equipped with at the top is installed in the guiding pole socket 8 at valve body 3 tops, and the two ends of the guide finger 5 that radially is provided with on the guide rod 4 place the vertical cotter way 9 of guiding pole socket 8 respective sides respectively, and described vertical cotter way 9 upper ends are uncovered.
Design principle of the present utility model and working procedure are, during actual the use, valve seat 1 lower flange is connected with the boiler top flange, steam flows to spool 2 bottoms after by the mouth of pipe in the boiler, because spool 2 adopts sphere linear sealing structure with valve seat 1, its specific pressure vapor pressure in the boiler, so sealing effect is good.When vapor pressure in the boiler surpassed setting value, spool 2 was upwards boosted, and steam is taken over 10 and discharged from valve body 3 middle parts, and the boiler internal pressure descends, and spool 2 also descends thereupon, when vapor pressure drops to setting value when following, and the sealing that automatically resets of this vacuum safety valve.When promoting handwheel 7, guide finger 5 is moved upward to along vertical cotter way 9 and skids off described cotter way, again handwheel 7 is rotated a suitable angle (for example 90 degree), then guide finger 5 can be by guiding pole socket 8 top-supported, then spool 2 can be positioned the highest Lift, get rid of air in the boiler when moving first, form vacuum to finish boiler.Rotation hand wheel 7 once more, and spool 2 is descended, and reset.The middle part of valve body 3 is taken over 10 and is connected with external discharge pipe, and air and mixture of steam are delivered to safety assembly point.
As known from the above, the utility model is a kind of antivoid valve that is used for vacuum boiler, and its advantage has: (1) sealing surface adopts high temperature resistant cast silicon rubber membrane, makes the sphere linear sealing have better sealing and practicability; (2) guide finger 5 had both guaranteed that spool 2 freely moved up and down, and prevented that again spool from rotating, and had guaranteed the stable applying of sealing surface; (3) valve gap 6 forms enclosed construction with valve body 3, is convenient to artificial lifting spool 2, can make the high-temperature gas safety dumping again; (4) weight of spool is pressed valve seat caliber and cracking pressure and is determined, and spool freely moves up and down, and has both guaranteed never superpressure operation of boiler, again add-on security control again.
The utility model is simple in structure, easily manufactured, long service life, easy and simple to handle, practical.
Description of drawings
Fig. 1 is a kind of embodiment's a structural representation.
In the drawings:
The 1-valve seat, the 2-spool, the 3-valve body,
The 4-guide rod, the 5-guide finger, the 6-valve gap,
7-handwheel, the 8-pole socket that leads, the vertical cotter way of 9-,
10-takes over 11-heat-resistant silicon rubber sealant in the middle part.
Embodiment
Referring to Fig. 1, the utility model comprises that the valve body 3 of valve gap 6 is arranged at the top, these valve body 3 one sides have the middle part to take over 10 and valve seat 1 is arranged at the bottom, be provided with sealing surface in the described valve body 3 and be sphere and form the spool 2 of sphere linear sealing structure with valve seat 1 upper end-hole, outer surface be provided with heat-resistant silicon rubber sealant 11 and can only do axially with guide rod 4 (be among Fig. 1 on, lower direction) mobile described spool 2 connects with guide rod 4 lower ends, the top that the described guide rod 4 of handwheel 7 is equipped with at the top is installed in the guiding pole socket 8 at valve body 3 tops, and the two ends of the guide finger 5 that radially is provided with on the guide rod 4 place the vertical cotter way 9 of guiding pole socket 8 respective sides respectively, and described vertical cotter way 9 upper ends are uncovered.The utility model antivoid valve, spool 2 appearances casting 5 millimeters thick heat-resistant silicon rubber seal retes as shown in Figure 1, the weight of spool 2 is determined that by the Boiler Steam critical pressure value of setting all the other members are determined according to ratio shown in Figure 1.During actual the use, valve seat 1 lower flange is connected with the boiler top flange, and it is the mixed gas exhaust port of air and steam that the middle part takes over 10.
Claims (1)
1, a kind of antivoid valve that is used for vacuum boiler, it comprises that the valve body (3) of valve gap (6) is arranged at the top, these valve body (3) one sides have the middle part to take over (10) and valve seat (1) is arranged at the bottom, it is characterized in that, be provided with sealing surface in the described valve body (3) and be sphere and form the spool (2) of sphere linear sealing structure with valve seat (1) upper end-hole, outer surface is provided with heat-resistant silicon rubber sealant (11) and can only does the same guide rod of axially movable described spool (2) (4) lower end with guide rod (4) and connects, the top that the described guide rod (4) of handwheel (7) is equipped with at the top is installed in the guiding pole socket (8) at valve body (3) top, and the two ends of the guide finger (5) that radially is provided with on the guide rod (4) place the vertical cotter way (9) of guiding pole socket (8) respective sides respectively, and described vertical cotter way (9) upper end is uncovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051733 CN2849385Y (en) | 2005-08-24 | 2005-08-24 | Vacuum safety valve for vacuum boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520051733 CN2849385Y (en) | 2005-08-24 | 2005-08-24 | Vacuum safety valve for vacuum boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849385Y true CN2849385Y (en) | 2006-12-20 |
Family
ID=37521868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520051733 Expired - Lifetime CN2849385Y (en) | 2005-08-24 | 2005-08-24 | Vacuum safety valve for vacuum boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849385Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841589A (en) * | 2017-11-20 | 2018-03-27 | 北京京诚科林环保科技有限公司 | Flue rotating device |
| CN108709001A (en) * | 2018-07-02 | 2018-10-26 | 安徽翰翔厨房设备有限公司 | A kind of multifunction valve door |
-
2005
- 2005-08-24 CN CN 200520051733 patent/CN2849385Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107841589A (en) * | 2017-11-20 | 2018-03-27 | 北京京诚科林环保科技有限公司 | Flue rotating device |
| CN107841589B (en) * | 2017-11-20 | 2023-12-08 | 北京京诚科林环保科技有限公司 | Rotary flue device |
| CN108709001A (en) * | 2018-07-02 | 2018-10-26 | 安徽翰翔厨房设备有限公司 | A kind of multifunction valve door |
| CN108709001B (en) * | 2018-07-02 | 2023-08-29 | 安徽翰翔厨房设备有限公司 | Multifunctional valve structure |
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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 |
Expiration termination date: 20150824 Granted publication date: 20061220 |
|
| EXPY | Termination of patent right or utility model |