CN2297608Y - On-off valve for atmospheric boiler - Google Patents
On-off valve for atmospheric boiler Download PDFInfo
- Publication number
- CN2297608Y CN2297608Y CN 97212930 CN97212930U CN2297608Y CN 2297608 Y CN2297608 Y CN 2297608Y CN 97212930 CN97212930 CN 97212930 CN 97212930 U CN97212930 U CN 97212930U CN 2297608 Y CN2297608 Y CN 2297608Y
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- Prior art keywords
- valve
- utility
- model
- connecting rod
- water
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- Expired - Fee Related
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Abstract
The utility model relates to an on-off valve used for heating systems of the atmospheric boilers, comprising a valve body, a water return opening, a water outlet, a valve, etc. The utility model is characterized in that the valve body is provided with a hydraulic cavity which is divided into an upper cavity body and a lower cavity body by rubber capsules; the lower cavity body is filled with hydraulic oil, and a piston in the lower cavity body is connected with the valve by a connecting rod; the cross section area of the piston is greater than that of the valve; the upper cavity body is provided with a communicating pipe; a pressure spring is arranged between the connecting rod and the valve body; the pressure spring drives the connecting rod to move upward, and then the valve is closed. The utility model is arranged in a water circulation system of the heating system of the atmospheric boiler and can regulate the pressure of a water return system. The utility model overcomes the defects that static pressure is difficult to control and water return resistance is strong because of differences of the height of the systems, etc., and has the advantage of convenient operation.
Description
The utility model relates to a kind of valve.
At present, the control of the backwater of normal-pressure hot-water boiler is the problem of a key.Existing artificial gate valve control, the one, the operating process more complicated, pressure of return water is wayward, and the 2nd, the spilling water phenomenon can appear during accident suddenly running into power failure etc.
The purpose of this utility model is to provide a kind of easy and simple to handle and normal-pressure boiler that can adjust return water system pressure to open and close valve.
The purpose of this utility model is achieved in that the utility model comprises valve body, backwater mouth, water outlet, valve etc., the utility model is provided with a hydraulic pressure cavity on valve body, rubber bag tank is divided into two cavitys up and down with hydraulic pressure cavity, hydraulic oil is housed in the lower chamber, and the piston in the lower chamber is connected with valve by connecting rod, and the sectional area of piston is greater than the sectional area of valve, upper cavity is provided with connecting tube, between connecting rod and valve body stage clip is housed, stage clip promotes to move valve closing on the connecting rod.
The utility model is equipped with adjusting nut between stage clip and connecting rod, be provided with gate valve on connecting tube.
The utility model connecting tube and recycle pump are connected, and the hot water of boiler enters heating system (routine building) by recycle pump, safety check, gets back to boiler through the utility model again by heating system.During the recycle pump running, boiler is to heating system heat supply water, because the sectional area of piston is greater than the sectional area of valve, the promotion piston moves down opens valve, makes the system water circulation, when recycle pump quits work, the piston throttle down that under the spring force effect, moves up, the utility model can supply pressure of return water by adjusting nut and the gate valve adjust system on connecting tube, and is easy and simple to handle, and safe and reliable.
Accompanying drawing 1 is the utility model opening state schematic representation.
Accompanying drawing 2 is the utility model closed condition schematic representation.
As accompanying drawing 1, shown in 2, the utility model is applied in the unpressurized hot water boiler and heats in the water circulation pipe, pressure-less boiler passes through recycle pump, safety check is given heat supply water such as heating system example high-rise building, the water that heating system comes out flows back to boiler through backwater mouth 3 of the present utility model and water outlet 4, be connected the connecting tube 11 of upper cavity 12 of the present utility model between the water outlet and safety check of recycle pump, the water outlet of recycle pump flow into backwater mouth 3 of the present utility model through the water that safety check flows out through heating system, like this when recycle pump turns round, recycle pump water outlet pressure increases, water is through entering upper cavity 12 connecting tube 11 and pressing down rubber bag tank 10, press down piston 8 by the hydraulic oil in the lower chamber 9, because backwater mouth 3 of the present utility model is connected with heating system, the pressure of valve 2 is the hydraulic pressure from heating system, because the sectional area of piston 8 is greater than the sectional area of valve 2, so the elastic force that piston 8 overcomes stage clip 5 drives valves 2 by connecting rod 7 and moves down and open valve 2, as accompanying drawing 1, shown in 2, whole system water begins circulation like this.The utility model can be adjusted the size of valve opening by turn adjusting nut 6, reaches required pressure of return water (this moment, the water pump water outlet mouth pressure was greater than pressure of return water) and makes flow maximum, resistance the best.When recycle pump quits work, closure of check ring, the vanishing of recycle pump water outlet pressure, valve 2 is up under the elastic force of stage clip 5 and the acting in conjunction of heating system backwater impulse force by connecting rod 7 like this, water in the upper cavity 12 is extruded, and throttle down 2 uses the utility model to overcome because of the system height difference, shortcomings such as static pressure maintenance difficulty and backwater resistance are big guarantee safe and reliable.
The utility model can be by regulating the slow down speed of the utility model opening and closing of gate valve 13 on the water service pipe 11, and the heating system water that occurs easily in the time of can avoiding recycle pump to quit work is like this fought back phenomenon.
Claims (3)
1, a kind of normal-pressure boiler opens and closes valve, comprise valve body (1), backwater mouth (3), water outlet (4), valve (2) etc., it is characterized in that on valve body 1, being provided with a hydraulic pressure cavity (9), rubber bag tank (10) is divided into two cavitys (12 up and down with hydraulic pressure cavity (9), 9), lower chamber is equipped with hydraulic oil in (9), piston (8) in the lower chamber (9) is connected with valve (2) by connecting rod (7), the sectional area of piston (8) is greater than the sectional area of valve (2), upper cavity (12) is provided with connecting tube (11), between connecting rod (7) and the valve body (1) stage clip (5) is housed, stage clip (5) promotes to move on the connecting rod (7), and valve (2) is closed.
2, a kind of normal-pressure boiler according to claim 1 opens and closes valve, it is characterized in that between stage clip (5) and connecting rod (7) adjusting nut (6) being housed.
3, a kind of normal-pressure boiler according to claim 1 and 2 opens and closes valve, it is characterized in that being provided with on connecting tube (11) gate valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212930 CN2297608Y (en) | 1997-03-25 | 1997-03-25 | On-off valve for atmospheric boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97212930 CN2297608Y (en) | 1997-03-25 | 1997-03-25 | On-off valve for atmospheric boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2297608Y true CN2297608Y (en) | 1998-11-18 |
Family
ID=33930883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97212930 Expired - Fee Related CN2297608Y (en) | 1997-03-25 | 1997-03-25 | On-off valve for atmospheric boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2297608Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100507330C (en) * | 2007-08-09 | 2009-07-01 | 山东大学 | High volume gas pressure regulating valve |
| CN110307202A (en) * | 2019-08-13 | 2019-10-08 | 湖北拓宇水电科技股份有限公司 | Hydraulic spring grease cup energy storage type power station air admission valve |
-
1997
- 1997-03-25 CN CN 97212930 patent/CN2297608Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100507330C (en) * | 2007-08-09 | 2009-07-01 | 山东大学 | High volume gas pressure regulating valve |
| CN110307202A (en) * | 2019-08-13 | 2019-10-08 | 湖北拓宇水电科技股份有限公司 | Hydraulic spring grease cup energy storage type power station air admission valve |
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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 |