CN2166381Y - Pressure cut off - Google Patents
Pressure cut off Download PDFInfo
- Publication number
- CN2166381Y CN2166381Y CN 93204098 CN93204098U CN2166381Y CN 2166381 Y CN2166381 Y CN 2166381Y CN 93204098 CN93204098 CN 93204098 CN 93204098 U CN93204098 U CN 93204098U CN 2166381 Y CN2166381 Y CN 2166381Y
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- CN
- China
- Prior art keywords
- pressure
- valve body
- boiler
- bellows
- water
- 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 cut off, composed of an upper, a middle and a lower barrel bodies, a positioning guide tube, a positioning sliding body, a valve body, a valve seat, a corrugated tube, a spring and the adjusting rod and the adjusting plate of the spring. The utility model is a key device which is used for obstruct the backwater pressure in the heating system of a boiler without pressure. When the boiler without pressure works, the corrugated tube is extended through the pressure of a water pump. The valve body is opened, and water enters in the boiler. When the boiler without pressure stops working, the pressure of the water pump disappeares. The spring makes the corrugated tube contracted, and the valve body is close. The backwater is cut off, and the boiler without pressure keeps an unpressurized state. The utility model has the advantages of convenient processing, flexible action, no impact force, reliable work and good durability, and can also be used as self control device for controlling entering of water on an unpressurized water container.
Description
The utility model is used for unpressurized hot water boiler's heating system and cuts off the water pressure that connects in the pressure-less boiler return pipe.Backwater is cut off in water inlet during the pressure-less boiler operation during blowing out, make pressure-less boiler keep passive state.Also make heating system keep full water state.Thereby the pressure-less boiler heating system can normally be moved.
The pressure-less boiler heating system should be stood when blowing out and both cut off backwater, becomes passive state to keep boiler.In time open backwater during startup toward boiler water supply, adopt manual operation to solve.At present, use magnetic valve and other similar devices, facts have proved, durability in hot water system, poor reliability, the short time is just malfunctioning, all has defective.
The purpose of this utility model provides a kind of startup, closes flexibly, and the power that is not hit is destroyed, the automatics of good endurance, in time cuts off heating system pressure when making the pressure-less boiler blowing out, can normally move to guarantee the pressure-less boiler heating system.
The utility model is to realize that with the bellows retractor device pressure cuts off.Connecting rod does not need to seal water proof, the frictional force when not mobile, thus flexible movements, reliable operation; Regulate filling of bellows, the speed that discharges water can be controlled its stretching speed, makes valve body, valve seat not filled the effect of hitting; Valve body, valve seat adopt garden platform shape; The flexible power of bellows is the convergent force of water-aspirator pressure and spring; So the utility model has good reliability, durability.
Fig. 1 is a constructing apparatus schematic diagram of the present utility model.
Fig. 2 is the connection diagram of the utility model in the pressure-less boiler heating system.
Among the figure: 1-water pump tube connector, 2-top cylinder cover clamp, 3-spring adjusting nut, 4-spring adjustable plate, 5-spring adjusting rod, 6-flange plate bolt, 7-bellows, 8-spring, 9-locatees slide cartridge, 10-top cylinder, tube among the 11-, tube hydroecium among the 12-, 13-outlet pipe, 14-seal washer, the 15-flange plate bolt, 16-doffing, 17-positioning catheter, the 18-positioning sliding block, 19-connecting-rod bolts, 20-adjusting nut, the 21-pad, 22-water inlet pipe, 23-doffing hydroecium, the 24-valve body, 25-valve seat, 26-rubber bowl, the 27-adjusting nut, 28-connecting rod, 29-screwed pipe, the 30-nut, 31-pressure-less boiler, 32-pressure cut off device, 33-control valve, 34-heating return pipe, the 35-water pump that heats, 36-heating feed pipe, 37-pressure connection tube, 38-maximum water level.
The utility model (Fig. 1), by upper, middle and lower tube 10,11,16, water inlet pipe and water outlet pipe 22,13, water-aspirator pressure tube connector 1, bellows 7, spring 8, spring adjusting nut, plate, bar 3,4,5, location slide cartridge 9, connecting rod 28, valve body 24, valve seat 25 forms. Middle doffing is by ring flange, seal washer 14, and bolt 15 closely connects. Middle top cylinder connects with bolt. Threaded upper cover plate 2 usefulness bolts 6 are connected with top cylinder 10. Water-aspirator pressure tube connector 1 usefulness nut 30 is connected with bellows 7. Spring 8 and location slide cartridge 9, adjusting rod 5 welding. And be fixed on the upper cover plate with adjustable plate, nut 4,3. Screwed pipe 29 and 9 welding of location slide cartridge. Connecting rod 28 is threaded with screwed pipe 29, valve body 24 usefulness adjusting nuts, pad 20,27,21 and connecting rod 28 be tightly connected. Positioning sliding block 18 usefulness bolts 19 are connected with connecting rod 28, and positioning catheter 17 is welded on doffing 16 base plates. Valve seat 25 is welded on the ring flange of middle tube. Cover rubber bowl 26 on the valve body 24.
Work of the present utility model is: (Fig. 2) water pump extracts hot water supply heating user in the pressure-less boiler when heating water pump 35 starts in the heating system. Water-aspirator pressure is by heating feed pipe 36, and pressure connection tube 37 passes on the water pump tube connector 1 of pressure cut off device 32. Pass to bellows 7(Fig. 1 by the water-aspirator pressure of water pump tube connector 1). Make its downward elongation, promotion location slide cartridge 9, connecting rod 28, valve body 24, positioning sliding block 18 move down. Valve body 24 separates with valve seat 25. The heating system backwater is by water inlet pipe 22, and doffing hydroecium 23 in the tube hydroecium 12, flows in the pressure-less boiler 31 (Fig. 2) through outlet pipe 13 during valve seat 25 flows into. A middle tube hydroecium 12 is the no pumping chambers that are communicated with atmosphere. The bellows elongation is extension spring 8 simultaneously. During termination of pumping, water-aspirator pressure in the bellows 7 disappears, and spring 8 retracted for clearance will locates slide cartridge 9, connecting rod 28, valve body 24, positioning sliding block 18 pull-ups, valve body 24 and Valve seat 25 driving fits, return pipe turn-offs. Hydrostatic pressure in the return pipe and middle tube hydroecium 12 cut off, and realize that pressure-less boiler cuts off the effect of pressure. The stretching of spring is regulated with adjusting nut 3.
Location slide cartridge, slide block 9,18 play the role of positioning, and make connecting rod 28, and valve body 24 vertical lifts are to keep valve body 24, valve seat 25 close fit.Rubber bowl 26 is to keep valve body 24 and valve seat 25 close-fitting liners.
Valve body, valve seat in the pressure cut off device are truncated conical shape.The inclination angle a of its bus and bottom surface is 0 °≤a≤60 °.The surfaces externally and internally of device all is coated with the heatproof antirust paint.
Do not have the water proof hold down gag in the utility model on the connecting rod, move flexibly, need not very big power and move it so connecting rod is upper and lower.Regulate the valve on the pressure connection tube 37, the discharge of transmitting pressure is controlled, make the bellows stretching speed also controlled, can not cause the blastic deformation of each member.So the utility model reliable operation, good endurance.
The utility model is the key equipment in the pressure-less boiler heating system, also can make not have the automatic control equipment of setting-out container (comprising pressure-less boiler) control water inlet.
Claims (5)
1, a kind of by last, in, doffing 10,11,16, bellows 7, water pump tube connector 1, spring 8, the spring adjusting rod, plate, nut 5,4,3, location slide cartridge 9, connecting rod 28, positioning sliding block 18, valve body 24, valve seat 25, water inlet pipe and water outlet pipe 22, the 13 pressure cut off devices of forming, it is characterized in that doffing is by flange plate bolt 15, seal washer 14 connects, in, the top cylinder bolt connects, and is divided into doffing hydroecium 23, middle tube hydroecium 12 and three spaces of top cylinder, dress bellows 7 in the top cylinder, its holding water pump tube connector 1 suitable for reading, the tube inner spring connects location slide cartridge 9 and adjusting rod 5, by adjusting nut, plate 3,4 are fixed on the top cylinder cover plate 2, slide cartridge 9 is free to slide in top cylinder, is welded with screwed pipe 29, and connecting rod 28 is fixed on the screwed pipe 29, valve body 24 is housed on the connecting rod 28, with nut 20,27, pad 21, rubber bowl 26 is tightly connected, its lower end positioning sliding block 18 usefulness bolts 19 are connected on the connecting rod 28, positioning sliding block 18 is free to slide in positioning catheter 17, and positioning catheter 17 is welded in down on the tube end plate, and valve seat 25 is welded on the middle drum flange dish, doffing has water inlet pipe 22, and middle tube has outlet pipe 13.
2, according to claim 1, described pressure cut off device is characterized in that valve body, valve seat become truncated cone-shaped, and the angle a of bus and bottom surface is 0 °≤a≤60 °, valve body outsourcing rubber bowl 26.
3, according to claim 1, described pressure cut off device is characterized in that the inside and outside surface of each member is coated with the heatproof antirust paint.
4, according to claim 1, described pressure cut off device is characterized in that its bellows 7 tightens up with water pump tube connector 1 usefulness nut 30, and bellows is made of rubber or flexible metal.
5, according to claim 1, described pressure cut off device is characterized in that on the pipeline 37 that the pressure connection tube 1 of bellows is connected with water pump control valve being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93204098 CN2166381Y (en) | 1993-02-25 | 1993-02-25 | Pressure cut off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93204098 CN2166381Y (en) | 1993-02-25 | 1993-02-25 | Pressure cut off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166381Y true CN2166381Y (en) | 1994-05-25 |
Family
ID=33787762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93204098 Expired - Fee Related CN2166381Y (en) | 1993-02-25 | 1993-02-25 | Pressure cut off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166381Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743119A (en) * | 2013-12-26 | 2014-04-23 | 韦克康 | Portable solar boiler |
| CN103982697A (en) * | 2014-06-05 | 2014-08-13 | 山东鹏鹞水暖设备有限公司 | Building cold and heat direct supply system and blocking device |
| CN112412776A (en) * | 2020-12-14 | 2021-02-26 | 宁波钱湖石油设备有限公司 | Reciprocating pump lubricating oil internal circulation system |
-
1993
- 1993-02-25 CN CN 93204098 patent/CN2166381Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743119A (en) * | 2013-12-26 | 2014-04-23 | 韦克康 | Portable solar boiler |
| CN103743119B (en) * | 2013-12-26 | 2015-09-09 | 韦克康 | A kind of portable type solar energy boiler |
| CN103982697A (en) * | 2014-06-05 | 2014-08-13 | 山东鹏鹞水暖设备有限公司 | Building cold and heat direct supply system and blocking device |
| CN112412776A (en) * | 2020-12-14 | 2021-02-26 | 宁波钱湖石油设备有限公司 | Reciprocating pump lubricating oil internal circulation system |
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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 |