CN2256503Y - Ball type central heating automatic air discharge valve - Google Patents
Ball type central heating automatic air discharge valve Download PDFInfo
- Publication number
- CN2256503Y CN2256503Y CN 96217474 CN96217474U CN2256503Y CN 2256503 Y CN2256503 Y CN 2256503Y CN 96217474 CN96217474 CN 96217474 CN 96217474 U CN96217474 U CN 96217474U CN 2256503 Y CN2256503 Y CN 2256503Y
- Authority
- CN
- China
- Prior art keywords
- float
- ball float
- pipe
- air discharge
- ball
- 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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- Float Valves (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to a ball type water heating automatic air discharge valve, which comprises a valve body, a pipe joint, a float, and an air discharge device, wherein, the float is a float ball wit a guide pipe and a pressure equalizing pipe; the valve body is formed into a ball shape, and is composed of a bottom casing, a casing cover, and a sealing ring; the center part of the bottom casing is provided with a guide shaft which causes the float to be positioned; the air discharge device is composed of a rubber gasket which is arranged at the upper end of the float, and a conical head air discharge nozzle which is arranged at the top end of the casing cover. The utility model is formed into a ball type structure. The utility model has the advantages of small size, accurate positioning for the float, flexible move, safe use, and long service life. The utility model is widely suitable for a normal pressure water heating system and a high pressure water heating system to use.
Description
The utility model relates to a kind of spherical hot-water heating automatic control pressure vent that is suitable for hot water system.
Hot water heating is generally used in the most of area of northern China, generally all use the float type outlet valve in the heating system, its structure is outmoded, be prone to fault, artificial exhaust is still used in therefore many places, artificial bleeding inconvenience, and easily lost heat water wastes energy, in case the freezing heating facility of the untimely just possibility of exhaust causes damage.
The purpose of this utility model is to hot water system provides a kind of novel structure, little, the safe and reliable spherical hot-water heating automatic control pressure vent of volume, to satisfy existing hot water system, and the demand of increasing atmospheric hot-water heating system particularly.
Hot-water heating automatic control pressure vent of the present utility model comprises valve body, pipe joint, float and venting gas appliance, it is characterized in that:
Described float is a ball float, and both sides or a side that its place, medial axis is provided with guide pipe, guide pipe are provided with balance pipe:
Described valve body is spherical, and it is by drain pan, cap and place drain pan with the seal ring of cap joint is formed, the guide shaft that the center setting of drain pan is located float;
Described venting gas appliance is made up of the rubber sheet gasket, the conehead exhaust nozzle that are arranged at the float upper end, and the conehead exhaust nozzle is loaded in the straight tube on cap top, is compressed by hold-down bolt, float moves up and down at described guide shaft, conehead exhaust nozzle and rubber sheet gasket are combined closely, or loosen, and realize sealing or exhaust.
Its description of drawings is as follows:
Fig. 1 is for being total to the structural representation of exemplary embodiments.Wherein each several part is: hold-down bolt (1), conehead exhaust nozzle (2), rubber sheet gasket (3), guide shaft (4), ball float (5), cap (6), balance pipe (7), guide pipe (8), seal ring (9), drain pan (10), positioning strip (11), be arranged at the pipe joint (12) on the drain pan (10).Drain pan of this outlet valve and cap are hemisphere hull shape ironcasting or Cast Steel, adopt the casting technique manufacturing to reduce cost greatly, guarantee that simultaneously it is withstand voltage.In order to overcome the inaccurate problem in float location of conventional apparatus, the utility model is provided with guide shaft (4) in the drain pan center, and guide shaft (4) is threaded with drain pan (10), and available copper material of guide shaft (4) or aluminium or stainless steel material are made.
Above-mentioned ball float (5) can be the copper ball float, or the plastics ball float, or stainless steel floating ball, or the aluminum alloy ball float.The place, medial axis of ball float (5) is provided with guide pipe (8), two of guide pipe (8) and ball float (5) welding, and the guide pipe (8) of ball float (5) passes above-mentioned guide shaft (4), ball float is placed in the valve body, and can slide flexibly up and down.
In the one or both sides of above-mentioned guide pipe (8) balance pipe (7) is set, balance pipe (7) can be copper pipe etc., their upper end and ball float (5) welding, the lower end reaches the bottom of ball float, and with the positioning strip (11) that is fixed on the guide pipe (8) in.After being provided with of balance pipe (7) can prevent that the valve body internal pressure from raising, make the inside and outside pressure difference that produces of ball float (5), ball float (5) is squeezed partially or squeeze broken.In the firm water-filling of the water heating system stage, air enters in the valve body from the pipe joint mouth, because suction port and exhaust nozzle mouth is bigger, about 40: 1, so air inflow is higher than air displacement, and the valve body internal air pressure is risen, the inside and outside draught head of ball float (5) increases, portion of air enters in the ball float (5) by balance pipe (7), and ball float pressure inner and the interior air chamber of valve body is equated, has avoided the ball float distortion.Balance pipe (7) stretches into the ball float bottom, can prevent ball float bottom ponding simultaneously.
The conehead exhaust nozzle (2) of venting gas appliance can be a heat resistant rubber conehead exhaust nozzle.
During use, the float come-up is combined closely rubber sheet gasket (3) and conehead exhaust nozzle (2), stops the hot water ejection; When being filled with gas in the valve body, drawdown is to certain position, and the float sinking makes rubber sheet gasket (3) and conehead exhaust nozzle (2) become untwisting and closes, and gas is promptly discharged automatically from exhaust nozzle.
This spherical automatic control pressure vent, the structural design novelty, volume is small and exquisite, and ball float moves up and down flexibly along guide shaft, accurate positioning, ball float can not be out of shape, use and water-tightly do not spray water, safe and reliable, the life-span is long, be widely used in the following normal-pressure boiler water heating system of work water pressure 0.6MPa, and the high pressure water heating system uses.
Claims (5)
1, a kind of spherical hot-water heating automatic control pressure vent comprises valve body, pipe joint, float and venting gas appliance, it is characterized in that:
Described float is a ball float, and its place, medial axis is provided with guide pipe, and the both sides of guide pipe or a side are provided with balance pipe;
Described valve body is spherical, and it is by drain pan, cap and place drain pan with the seal ring of shell joint is formed, the guide shaft that the center setting of drain pan is located float;
Described venting gas appliance, by the rubber sheet gasket that is arranged at the float upper end, the conehead exhaust nozzle is formed, and the conehead exhaust nozzle is loaded in the straight tube on cap top, is compressed by hold-down bolt.
2, outlet valve according to claim 1, it is characterized in that: described balance pipe lower end reaches the bottom of ball float, the lower end of balance pipe is fixed in the positioning strip of guide pipe.
3, outlet valve according to claim 1, it is characterized in that: described conehead exhaust nozzle is a heat resistant rubber conehead exhaust nozzle.
4, outlet valve according to claim 1 is characterized in that: the drain pan of described valve body and cap are ironcasting or Cast Steel.
5, outlet valve according to claim 1 is characterized in that: described ball float is copper ball float or plastics ball float, or stainless steel floating ball or aluminum alloy ball float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96217474 CN2256503Y (en) | 1996-08-01 | 1996-08-01 | Ball type central heating automatic air discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96217474 CN2256503Y (en) | 1996-08-01 | 1996-08-01 | Ball type central heating automatic air discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2256503Y true CN2256503Y (en) | 1997-06-18 |
Family
ID=33898610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96217474 Expired - Fee Related CN2256503Y (en) | 1996-08-01 | 1996-08-01 | Ball type central heating automatic air discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2256503Y (en) |
-
1996
- 1996-08-01 CN CN 96217474 patent/CN2256503Y/en not_active Expired - Fee Related
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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 |