CN2186844Y - Pressure adjusting rotary joint - Google Patents
Pressure adjusting rotary joint Download PDFInfo
- Publication number
- CN2186844Y CN2186844Y CN 94225720 CN94225720U CN2186844Y CN 2186844 Y CN2186844 Y CN 2186844Y CN 94225720 CN94225720 CN 94225720 CN 94225720 U CN94225720 U CN 94225720U CN 2186844 Y CN2186844 Y CN 2186844Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- valve
- pressure adjusting
- swivel joint
- rotary joint
- 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 relates to a pressure adjusting rotary joint, a pressure adjusting valve which is communicated with a pressure sealing cavity is arranged on the traditional rotary joint. The pressure adjusting valve is composed of a valve casing, a sealing ring, a ball, springs, and a hollow spring seat. The upper periphery and the lower periphery of the pressure adjusting value is provided with threading, positive installation is used for negative pressure compensation, and reverse installation is used for positive pressure release. The outside of the hollow spring seat is provided with threading, which is used for adjusting the predetermined start working pressure, and the pressure adjusting rotary joint is the double-function universal connecting piece which is adjustable.
Description
The utility model relates to a kind of pressure piping link, but pressure regulating type swivel joint particularly.
Positive pressure and negative pressure are excessive, exceed pipeline, all cause the infringement to equipment during the equipment allowed band easily.As in the many drying machines with high-temperature steam heating, the transition that is connected of each rotary drier and heat distribution pipeline is that the swivel joint of employing sealing configuration realizes.The instinct of swivel joint is heat medium not to be had the transporting of the ground of leakage give drying cylinder, and the condensed fluid that heat energy release back is produced enters the circuit controls pipeline.When drying plant normally moves, bearing suitable high temperature and pressure in drying cylinder and the fluid-transporting tubing, each position produces expansion because of being heated simultaneously.After it was stopped heat supply, the drying cylinder of expanded by heating occurred shrinking because of the cooling of natural temperature.Heating the high-temperature steam that is produced by water also descends along with temperature and progressively reduction.Produce negative pressure in the system of sealing along with the increasing of contour projector.The temperature difference that heating-up temperature and natural temperature form is big more, and the degree of vacuum of the indoor formation of pressurized container is just high more.Under this situation, the big thin-walled drying cylinder of contact external pressure area often is lower than making a concerted effort of atmospheric pressure and vacuum draw because of intensity own.Cause barrel to sink and inhale flatly, cause scrapping of drying cylinder when serious.Equally, excessive can not get of the positive pressure in pipeline, the equipment discharges, and also damages equipment easily, and may produce danger.
The purpose of this utility model is to overcome above-mentioned deficiency, sets up a pressure regulation valve member on the swivel joint of conventional construction, both becomes to discharge too high malleation.Can compensate low negative pressure and rated working pressure swivel joint adjustable, highly versatile again.
Technical solution of the present utility model is: the interior pipe overcoat hollow shaft in the pressure regulating type swivel joint, housing, and oilless bearing one side is the spring seat of fixing spring, and seal ring is arranged in the end cap; Shell body wall is provided with the hole with wiper seal chamber communications and liaison, by the pressure regulator valve sealing that is fixedly connected with it.The seal ring of pressure regulator valve is stuck in the boss of valve casing one end, touches with spheroid; Spring one end and spheroid touch.The other end is many terrace with edges, the upper and lower outside thread that has in the middle of touching the valve casing periphery with the hollow projectile cartridge spring abutment on the valve casing inwall of being fixedly connected; Hole with wiper seal chamber communications and liaison on the swivel joint shell body wall is provided with internal thread.Spring seat peripheral zone screw thread in the pressure regulator valve and the screw-thread fit on the valve casing inwall.
According to technique scheme, be the negative pressure compensating swivel joint when the spheroid of pressure regulator valve is in when upper.When heating system was stopped heat supply, temperature reduced when causing negative pressure to work as the negative pressure overrate to seal container, and suction makes the spheroid pressure spring, and spheroid and seal ring are thrown off air and entered, and made negative pressure and atmosphere outside pressure kept in balance in the room.Being in when the next when anti-dress pressure regulator valve makes spheroid, is that malleation discharges swivel joint.
Be used to limit the too high occasion of positive pressure.Utilize the screw thread forward and back of pressure regulator valve hollow core spring seat, can adjust and set up predetermined startup working pressure.Many terrace with edges of pressure regulator valve peace instrument easy to use is installed, dismounting.
Accompanying drawing 1 is the utility model sectional view;
Accompanying drawing 2 is the utility model pressure regulator valve sectional view.
In conjunction with the accompanying drawings, a kind of embodiment of the present utility model is described.Interior pipe 9 overcoat hollow shafts 6 in the pressure regulating type swivel joint housing 2, oilless bearing 3 one sides are the spring seat 4 of fixing spring 5, and seal ring 7 is arranged in the end cap 8; Housing 2 walls are provided with the hole with wiper seal chamber communications and liaison, by pressure regulator valve 1 sealing that is fixedly connected with it.The seal ring 11 of pressure regulator valve 1 is stuck in the boss of valve casing 10 1 ends, touches with spheroid 12; Spring 13 1 ends and spheroid 12 touch, and the other end touches with the hollow projectile cartridge spring abutment 14 that is fixedly connected on valve casing 10 inwalls; In the middle of valve casing 10 peripheries is many ribs boss, upper and lower being threaded; Hole with wiper seal chamber communications and liaison on housing 2 walls is provided with internal thread.Screw-thread fit on hollow projectile cartridge spring abutment 13 peripheral zone screw threads and valve casing 10 inwalls.
Claims (3)
1, interior pipe [9] the overcoat hollow shaft [6] in the pressure regulating type swivel joint, housing [2], oilless bearing [3] one sides are the spring seat [4] of fixing spring [5], and seal ring [7] is arranged in the end cap [8]; It is characterized in that housing [2] wall is provided with the hole with wiper seal chamber communications and liaison, by pressure regulator valve [1] sealing that is fixedly connected with it.
2, pressure regulating type swivel joint according to claim 1 is characterized in that: the seal ring (11) of pressure regulator valve (1) is stuck in the boss of an end of valve casing (10), touches with spheroid (12); Spring (13) one ends and spheroid (12) touch, and the other end touches with the hollow projectile cartridge spring abutment (14) that is fixedly connected on valve body (10) inwall; In the middle of valve casing (10) periphery is many ribs boss, upper and lower being threaded; Hole with wiper seal chamber communications and liaison on housing (2) wall is provided with internal thread.
3, pressure regulating type swivel joint according to claim 2 is characterized in that the screw-thread fit on spring seat (14) peripheral zone screw thread and valve casing (10) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225720 CN2186844Y (en) | 1994-02-03 | 1994-02-03 | Pressure adjusting rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94225720 CN2186844Y (en) | 1994-02-03 | 1994-02-03 | Pressure adjusting rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186844Y true CN2186844Y (en) | 1995-01-04 |
Family
ID=33838856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94225720 Expired - Fee Related CN2186844Y (en) | 1994-02-03 | 1994-02-03 | Pressure adjusting rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186844Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313097A (en) * | 2011-08-25 | 2012-01-11 | 江苏腾旋科技股份有限公司 | Reverse spherical surface type multi-spring rotary joint |
| CN104006242A (en) * | 2014-06-16 | 2014-08-27 | 潼南县炫吉中绸有限公司 | Drying cylinder rotating joint |
-
1994
- 1994-02-03 CN CN 94225720 patent/CN2186844Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313097A (en) * | 2011-08-25 | 2012-01-11 | 江苏腾旋科技股份有限公司 | Reverse spherical surface type multi-spring rotary joint |
| CN104006242A (en) * | 2014-06-16 | 2014-08-27 | 潼南县炫吉中绸有限公司 | Drying cylinder rotating joint |
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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 |