CN2600669Y - High-pressure straight-through stop valve - Google Patents
High-pressure straight-through stop valve Download PDFInfo
- Publication number
- CN2600669Y CN2600669Y CN 02257590 CN02257590U CN2600669Y CN 2600669 Y CN2600669 Y CN 2600669Y CN 02257590 CN02257590 CN 02257590 CN 02257590 U CN02257590 U CN 02257590U CN 2600669 Y CN2600669 Y CN 2600669Y
- Authority
- CN
- China
- Prior art keywords
- valve
- gland
- spring
- stuffing box
- valve seat
- 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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- Check Valves (AREA)
Abstract
A high-pressure once-through retaining valve includes a valve body, a bonnet, a gland cover with a reeded gutter in the center of the valve and used to seal the valve built in the joint between the valve body and the bonnet, a spring gland, a valve base with a central hole, a spring arranged between the spring gland and the valve base and a locating pin. The gland cover is fastened in the process of fixing the valve body and the bonnet externally. The valve base is arranged on the gland cover. The spring gland roves through the valve base reaching the flute of the gland cover. The locating pin roves through the spring gland and the gland cover and is fixed, which can be used to adjust the fluctuation of the spring gland. Some horizontal flow holes are drilled in the touch point between the gland cover and the valve base, through which, the liquid can enter the valve. The utility model can be used to adjust the minimum pressure required for switching the valve, which enables the utility model to be applicable to the liquid driving device for better effect and improve the production efficiency as well.
Description
Technical field
The utility model relates to valve field, is the straight-through shape safety check of a kind of high pressure specifically.
Background technique
In hydraulic pressure installation, the valve part that is absolutely necessary, the quality of valve mass directly influences the performance of device.The straight-through shape safety check of high pressure all has more use as representative one of the most frequently used in the valve in various industrial production, special in the production of synthetic ammonia and urea, the straight-through shape safety check of high pressure is as the main component of its device, and effect greatly in device.In course of working, many processing links are because the needs of processing must guarantee that liquid can not reflux, and therefore, we will realize this function with safety check.But because design aspect, in case after safety check was made, the required liquid pressure of Open valve generally all had fixing minimum value, promptly the holddown spring in the valve is non-adjustable, and this in use has inconvenience.
Particularly, the straight-through shape safety check of existing high pressure mainly contains following shortcoming:
1, the pressure of holddown spring is non-adjustable, uses inconvenience;
2, manufacturing efficiency is low.
Summary of the invention
At said circumstances, this use is novel have been proposed a kind ofly can enhance productivity, the straight-through shape safety check of the high pressure of adjustable liquid minimum pressure again.
For achieving the above object, the novel solution of this use is: a kind of high pressure leads directly to the shape safety check, it includes valve body, valve gap, is built in the reeded stuffing box gland in center, spring capping that valve body valve gap joint is used to seal this valve, the band center hole valve seat, place spring and positioning dowel between spring capping, the valve seat, during valve body valve gap outer fixing that stuffing box gland is fastening, valve seat places on the stuffing box gland, spring capping passes valve seat to the groove of stuffing box gland, positioning dowel passes spring capping and stuffing box gland is fixed, the lifting of its adjustable springs gland.
Described valve seat top outer rim also is provided with the projection that is easy to fixing spring.
On the described stuffing box gland and valve seat contacting point also is provided with opening longitudinally.
The minimum pressure of opening of the utility model can regulate can be used for hydraulic transmission better, has improved manufacturing efficiency.
Specifically, the utility model has following advantage:
1, the minimum pressure of device can regulate unlatching can be used for multiple device;
2, improved manufacturing efficiency;
Describe the utility model in detail below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the utility model embodiment's a structural drawing.
Specific implementation
As Fig. 1 is the utility model embodiment's structural drawing, as shown in the figure, the utility model embodiment specifically includes valve body (1), valve gap (2), be built in valve body (1) valve gap (2) joint and be used to seal the stuffing box gland (3) at the center fluted (11) of this valve, 4 openings (10) on the stuffing box gland (3), be enclosed within and be used for its fixing flange plate (5) on valve body (1) valve gap (2), pass the bolt (6) of two flange plate (5), spring capping (4), the valve seat (7) of band center hole, place spring capping (4), spring (8) between the valve seat (7) and positioning dowel (9).
The outer rim of valve body (1) valve gap (2) joint at first is fixed with flange plate (5), locate to be fixed at two flange plate (5) with bolt (6), simultaneously stuffing box gland (3) is built in valve body (1) and fixing, valve seat (7) places the top of stuffing box gland (3), center on the hole of valve seat (7) and the stuffing box gland (3) is coaxial with groove (11), spring capping (4) places on the valve seat (7), and extend in the groove (11) of stuffing box gland (3), positioning dowel (9) passes spring capping (4) and locates to fix at the groove (11) of stuffing box gland (3).Between spring capping (4) and valve seat (7), be fixed with the spring (8) that compresses valve seat (7).For the benefit of spring (8) is fixing, and valve seat (7) top outer rim also is provided with projection (12).
In the production process of synthetic ammonia and urea, the utility model embodiment's working mechanism is such: as shown in Figure 1, the utility model embodiment is at first docked with Outer Tube, urea liquid is located by the stuffing box gland (5) that valve body (1) flows into the utility model embodiment by Outer Tube, because valve seat (7) under the pressure of spring (8) is stopping up 4 openings (10) on the stuffing box gland (5), liquid utilizes the pressure of self that valve seat (7) is pushed open, at this moment, liquid can enter in the upper cavity of valve body (1) valve gap (2) formation, by the Outer Tube that is connected to outflow thereon, liquid just can flow out smoothly.Can regulate the lifting of fixing spring gland (4) positioning dowel (9) as required, push the required minimum pressure of valve seat (7) open with adjusting.This has made things convenient for production to a great extent, has improved manufacturing efficiency.
When liquid entering hole stops, the bottom of valve seat (7) has not just had the pressure from liquid, under valve seat (7) deadweight and spring thrust effect, valve seat (7) can block up the opening (10) on the stuffing box gland (5) soon, at this moment, the gravity of the hydrops in the upper cavity that valve body (1) valve gap (2) forms also acts on the valve seat (7), that valve seat (7) can be pressed is tighter, it is tighter that opening (10) on the stuffing box gland (5) also just blocks up, therefore, the utility model embodiment has just reached good non-return effect.
Claims (3)
1, the straight-through shape safety check of a kind of high pressure, it includes valve body, valve gap, is built in the reeded stuffing box gland in center, spring capping that valve body valve gap joint is used to seal this valve, the band center hole valve seat, place the spring between spring capping and the valve seat, during valve body valve gap outer fixing that stuffing box gland is fastening, valve seat places on the stuffing box gland, spring capping passes valve seat to the groove of stuffing box gland, it is characterized in that, this safety check also comprises the positioning dowel of adjustable springs gland lifting, and it passes spring capping and is fixed on the stuffing box gland.
2, the straight-through shape safety check of a kind of high pressure as claimed in claim 1 is characterized in that described valve seat top outer rim also is provided with the projection that is easy to fixing spring.
3, a kind of high pressure balance dihedral cut-off throttle valve as claimed in claim 1 is characterized in that, on the described stuffing box gland and valve seat contacting point also is provided with opening longitudinally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257590 CN2600669Y (en) | 2002-09-29 | 2002-09-29 | High-pressure straight-through stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257590 CN2600669Y (en) | 2002-09-29 | 2002-09-29 | High-pressure straight-through stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600669Y true CN2600669Y (en) | 2004-01-21 |
Family
ID=34149959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257590 Expired - Fee Related CN2600669Y (en) | 2002-09-29 | 2002-09-29 | High-pressure straight-through stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600669Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796336A (en) * | 2007-08-01 | 2010-08-04 | 欧文·韦 | Valve component |
-
2002
- 2002-09-29 CN CN 02257590 patent/CN2600669Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796336A (en) * | 2007-08-01 | 2010-08-04 | 欧文·韦 | Valve component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |