CN204805658U - Open and close pressure differential fine tuning relief valve - Google Patents
Open and close pressure differential fine tuning relief valve Download PDFInfo
- Publication number
- CN204805658U CN204805658U CN201520559493.2U CN201520559493U CN204805658U CN 204805658 U CN204805658 U CN 204805658U CN 201520559493 U CN201520559493 U CN 201520559493U CN 204805658 U CN204805658 U CN 204805658U
- Authority
- CN
- China
- Prior art keywords
- valve
- regulating block
- annular
- disc holder
- screw thread
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model relates to an open and close pressure differential fine tuning relief valve, including valve body, disk seat, adjusting ring, valve clack, recoil dish, uide bushing, valve gap, spring and valve rod, be equipped with in the plane on the recoil dish to open and close pressure differential adjusting device, should open and close pressure differential adjusting device includes the annular adjustment tank in the plane on the recoil dish, the regulating block, constant head tank and set screw, the regulating block inlays the dress in annular adjustment tank, the interior rampart regulation screw of the threaded and annular adjustment tank of pore wall system is mutually supported in the regulating block, the constant head tank has a plurality of evenly to set up at annular adjustment tank bottom surface circumferencial direction, set screw installs in the countersunk head screw in the regulating block annular plane, set screw's tip stretches into in the constant head tank, the countersunk head screw evenly sets up at regulating block annular plane circumferencial direction. Adjusting on the recoil dish distance between the last plane of plane and regulating block through the regulating block, adjusting and open and close pressure differential value, it is adjustable to realize opening and close pressure differential, and pressure differential is opened and close in the reduction.
Description
Technical field
The utility model belongs to valve field, particularly about a kind of safety valve.
Background technique
Existing Direct spring loaded safety valve comprises valve body, valve seat, Adjusting ring, flap, Disc holder, guide sleeve, valve gap, spring and valve rod, valve seat upper end is provided with sealing surface, and be arranged on valve body inlet passage by screw thread, valve gap is arranged on valve body upper end, guide sleeve interior bone, guide sleeve upper end is fixedly mounted between valve body and valve gap, Disc holder back directional post coordinates with the pilot hole of guide sleeve is dynamic, Disc holder lower end is provided with groove, flap is installed in this groove, flap lower end is provided with the sealing surface matched with sealing surface of seat, Adjusting ring is installed on screw thread place, valve seat top, and be placed in below Disc holder, valve rod lower end compresses Disc holder, valve gap inner chamber is stretched in upper end, spring fitting is in valve gap inner chamber, by holddown spring to the downward thrust of valve rod one, promotion Disc holder and flap move down, make flap lower end sealing surface compact sealing surface of seat, by the decrement of Regulation spring, a presetting Set pressure value that flap can be made to open, when safety valve suction side pressure medium rises to this Set pressure value, flap is opened, when the decline of safety valve suction side pressure medium reaches certain value, flap is closed, its shortcoming is: flap is in the process of closing, Disc holder cannot be acted on and flap carries on the back prone active force by regulation valve body inner chamber place medium, cannot finely tune Blowdown of a safety valve, Blowdown of a safety valve is large.
Summary of the invention
The purpose of this utility model is the shortcoming for existing in prior art, there is provided one to have adjustable valve intracoelomic cavity place medium and act on Disc holder and flap carries on the back prone active force, Blowdown of a safety valve is finely tuned, the Blowdown of a safety valve fine turning safety valve that Blowdown of a safety valve is little.
The technical solution of the utility model comprises valve body, valve seat, Adjusting ring, flap, Disc holder, guide sleeve, valve gap, spring and valve rod, valve seat upper end is provided with sealing surface, and be arranged on valve body inlet passage by screw thread, valve gap is arranged on valve body upper end, guide sleeve upper end is fixedly mounted between valve body and valve gap, the directional post on Disc holder top coordinates with guide sleeve endoporus is dynamic, Disc holder lower end is provided with groove, flap is installed in this groove, flap lower end is provided with the sealing surface matched with sealing surface of seat, Adjusting ring is installed on screw thread place, valve seat top, and be placed in below Disc holder, valve rod lower end compresses Disc holder, valve gap inner chamber is stretched in valve rod upper end, between the upper lower spring cup of spring fitting on the valve rod of valve gap inner chamber position, nut lower end surface of adjusting is pressed in the upper-end surface of upper spring seat, mainly Disc holder is provided with Blowdown of a safety valve controlling device in plane, this Blowdown of a safety valve controlling device comprises the annular regulating tank on Disc holder in plane, regulating block, locating slot and positioning screwn, annular regulating tank internal ring wall is shaped with adjustment screw thread, regulating block is inlaid in annular regulating tank, regulating block inner hole wall is shaped with screw thread and annular regulating tank internal ring wall regulates screw thread to cooperatively interact, locating slot has some evenly to arrange in annular regulating tank base circumference direction, positioning screwn is arranged in the countersunk screw holes in regulating block planar annular, the end of positioning screwn extend in locating slot, countersunk screw holes is evenly arranged at regulating block planar annular circumferencial direction.
Preferably, the screw thread outside diameter of adjustment screw thread is 1.05 ~ 1.2 times of guide sleeve lower end outside diameter.
Preferably, the thickness of regulating block is 0.5 ~ 0.7 times of the annular regulating tank degree of depth.
Preferably, the quantity of locating slot is 6 ~ 12, is positioned at below regulating block countersunk screw holes, and the width of locating slot is positioning screwn underpart outside diameter and 1.1 ~ 1.2 times.
The utility model has the advantages that and be provided with Blowdown of a safety valve controlling device in plane on Disc holder, when the rising of valve suction side pressure medium reaches Set pressure value, flap is opened, when valve suction side pressure medium drops to Reseating pressure of a safety valve value, flap is closed, now Set pressure value deducts Reseating pressure of a safety valve value is exactly Blowdown of a safety valve value, if Blowdown of a safety valve is too large, the distance on Disc holder between plane and the upper plane of regulating block is regulated by regulating block, thus regulate Disc holder upper dielectric to act on the value of the downward active force of regulating block, regulate Blowdown of a safety valve value, realize Blowdown of a safety valve adjustable, reduce Blowdown of a safety valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 valve body, 2 valve seats, 3 Adjusting rings, 4 flaps, 5 Disc holders, 6 guide sleeves, 7 valve gaps, 8 springs, 9 valve rods, 10 annular regulating tanks, 11 regulating blocks, 12 locating slots, 13 positioning screwns.
Embodiment
Blowdown of a safety valve fine turning safety valve as shown in Figure 1, comprise valve body 1, valve seat 2, Adjusting ring 3, flap 4, Disc holder 5, guide sleeve 6, valve gap 7, spring 8 and valve rod 9, valve seat 2 upper end is provided with sealing surface, and be arranged in valve body 1 inlet passage by screw thread, valve gap 7 is arranged on valve body 1 upper end, guide sleeve 6 upper end is fixedly mounted between valve body 1 and valve gap 7, the directional post on Disc holder 5 top coordinates with guide sleeve 6 endoporus is dynamic, Disc holder 5 lower end is provided with groove, flap 4 is installed in this groove, flap 4 lower end is provided with the sealing surface matched with valve seat 2 sealing surface, Adjusting ring 3 is installed on screw thread place, valve seat 2 top, and be placed in below Disc holder 5, valve rod 9 lower end compresses Disc holder 5, valve gap 7 inner chamber is stretched in valve rod 9 upper end, spring 8 is installed between the upper lower spring cup on valve gap 7 inner chamber position valve rod 9, nut lower end surface of adjusting is pressed in the upper-end surface of upper spring seat, Disc holder 5 is provided with Blowdown of a safety valve controlling device in plane, this Blowdown of a safety valve controlling device comprises the annular regulating tank 10 on Disc holder 5 in plane, regulating block 11, locating slot 12 and positioning screwn 13, annular regulating tank 10 internal ring wall is shaped with adjustment screw thread, regulating block 11 is inlaid in annular regulating tank 10, regulating block 11 inner hole wall is shaped with screw thread and annular regulating tank 10 internal ring wall regulates screw thread to cooperatively interact, by the adjustment position of regulating block 11 on annular regulating tank 10, regulate the distance between plane and annular regulating tank 10 upper-end surface on regulating block 11, thus regulate Disc holder 5 upper dielectric to act on the value of the downward active force of regulating block 11, regulate Blowdown of a safety valve value.Locating slot 12 has some evenly to arrange in annular regulating tank 10 base circumference direction, positioning screwn 13 is arranged in the countersunk screw holes in regulating block 11 planar annular, the end of positioning screwn 13 extend in locating slot 12, and countersunk screw holes is evenly arranged at regulating block 11 planar annular circumferencial direction.
The screw thread outside diameter of the adjustment screw thread on annular regulating tank 10 is 1.05 ~ 1.2 times of guide sleeve 6 lower end outside diameter.The thickness of regulating block 11 is 0.5 ~ 0.7 times of annular regulating tank 10 degree of depth.The quantity of locating slot 12 is 6 ~ 12, below regulating block 11 countersunk screw holes, even circumferential divides face, namely locating slot 12 distributing position place circle radius equals the distance of regulating block 11 center of circle to countersunk screw holes center, and the width of locating slot 12 is positioning screwn 13 underpart outside diameter and 1.1 ~ 1.2 times.
Claims (3)
1. a Blowdown of a safety valve fine turning safety valve, comprise valve body (1), valve seat (2), Adjusting ring (3), flap (4), Disc holder (5), guide sleeve (6), valve gap (7), spring (8) and valve rod (9), valve seat (2) upper end is provided with sealing surface, and be arranged in valve body (1) inlet passage by screw thread, valve gap (7) is arranged on valve body (1) upper end, guide sleeve (6) upper end is fixedly mounted between valve body (1) and valve gap (7), the directional post on Disc holder (5) top coordinates with guide sleeve (6) endoporus is dynamic, Disc holder (5) lower end is provided with groove, flap (4) is installed in this groove, flap (4) lower end is provided with the sealing surface matched with valve seat (2) sealing surface, Adjusting ring (3) is installed on screw thread place, valve seat (2) top, and be placed in Disc holder (5) below, valve rod (9) lower end compresses Disc holder (5), valve gap (7) inner chamber is stretched in valve rod (9) upper end, spring (8) is installed between the upper lower spring cup on valve gap (7) inner chamber position valve rod (9), nut lower end surface of adjusting is pressed in the upper-end surface of upper spring seat, it is characterized in that being provided with Blowdown of a safety valve controlling device in the upper plane of Disc holder (5), this Blowdown of a safety valve controlling device comprises the annular regulating tank (10) in the upper plane of Disc holder (5), regulating block (11), locating slot (12) and positioning screwn (13), annular regulating tank (10) internal ring wall is shaped with adjustment screw thread, regulating block (11) is inlaid in annular regulating tank (10), regulating block (11) inner hole wall is shaped with screw thread and annular regulating tank (10) internal ring wall regulates screw thread to cooperatively interact, locating slot (12) has some evenly to arrange in annular regulating tank (10) base circumference direction, positioning screwn (13) is arranged in the countersunk screw holes in regulating block (11) planar annular, the end of positioning screwn (13) extend in locating slot (12), countersunk screw holes is evenly arranged at regulating block (11) planar annular circumferencial direction.
2. Blowdown of a safety valve fine turning safety valve according to claim 1, is characterized in that the screw thread outside diameter of adjustment screw thread is 1.05 ~ 1.2 times of guide sleeve (6) lower end outside diameter.
3. Blowdown of a safety valve fine turning safety valve according to claim 1 and 2, is characterized in that the thickness of regulating block (11) is 0.5 ~ 0.7 times of annular regulating tank (10) degree of depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559493.2U CN204805658U (en) | 2015-07-17 | 2015-07-17 | Open and close pressure differential fine tuning relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559493.2U CN204805658U (en) | 2015-07-17 | 2015-07-17 | Open and close pressure differential fine tuning relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805658U true CN204805658U (en) | 2015-11-25 |
Family
ID=54590486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520559493.2U Withdrawn - After Issue CN204805658U (en) | 2015-07-17 | 2015-07-17 | Open and close pressure differential fine tuning relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805658U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135012A (en) * | 2015-07-17 | 2015-12-09 | 永一阀门集团有限公司 | Device and method for adjusting opening and closing pressure difference of safety valve |
| CN109707881A (en) * | 2018-12-17 | 2019-05-03 | 陕西科技大学 | A kind of spring spool |
| CN110388468A (en) * | 2018-04-19 | 2019-10-29 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
-
2015
- 2015-07-17 CN CN201520559493.2U patent/CN204805658U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135012A (en) * | 2015-07-17 | 2015-12-09 | 永一阀门集团有限公司 | Device and method for adjusting opening and closing pressure difference of safety valve |
| CN110388468A (en) * | 2018-04-19 | 2019-10-29 | 株式会社鹭宫制作所 | Motor-driven valve and refrigerating circulation system |
| CN110388468B (en) * | 2018-04-19 | 2021-11-16 | 株式会社鹭宫制作所 | Electric valve and refrigeration cycle system |
| CN109707881A (en) * | 2018-12-17 | 2019-05-03 | 陕西科技大学 | A kind of spring spool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151125 Effective date of abandoning: 20180116 |