CN2318474Y - Boiler constant-pressure automatic regulating valve - Google Patents
Boiler constant-pressure automatic regulating valve Download PDFInfo
- Publication number
- CN2318474Y CN2318474Y CN 97230778 CN97230778U CN2318474Y CN 2318474 Y CN2318474 Y CN 2318474Y CN 97230778 CN97230778 CN 97230778 CN 97230778 U CN97230778 U CN 97230778U CN 2318474 Y CN2318474 Y CN 2318474Y
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- CN
- China
- Prior art keywords
- pressure
- boiler
- valve
- piston
- utility
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- 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 provides a boiler constant-pressure automatic regulating valve. The utility model is mainly composed of a compression spring, an adjusting mechanism, fastening fittings, a needle valve, etc. The utility model is characterized in that a balancing system for boiler pressure and air supply amount is erected through adjusting the compression amount of the spring, and then the boiler pressure is stable. The utility model has the advantages of convenient installation, simple and flexible adjustment, and convenient modernization management.
Description
The utility model relates to a kind of boiler pressure controlling device.
In the prior art, the pressure control of boiler has three kinds of modes, and the one, the venting of safety valve level pressure; The 2nd, utilize the upper and lower limiting value of electromagnetic valve authorized pressure; The 3rd, hold by the manual change and to copy the gram open degree and regulate flare length and control boiler pressure.The first method venting is frequent, easily causes dried stove, also is unfavorable for solar term, water saving simultaneously.The pressure of second method has the fluctuation of a upper lower limit value, when circuit breaks down or have a power failure, closed electromagnetic valve, boiler pressure constantly descends, until stopping circulation, simultaneously because electromagnetic contact must be connected on the upper lower limit value position of regulation in the pressure gauge, and pressure gauge easily damages by high-temperature steam, makes solenoid valve ineffective.The third method is by the manual tune boiler pressure, and it is very big to fluctuate.When firepower is excessive, cause the venting of safety valve superpressure, firepower is too small, then causes boiler to stop circulation.
The purpose of this utility model is to provide a kind of pressure of being convenient to regulate, and guarantees the boiler level pressure controlling device of safe operation of the boiler.
This practicality mainly is made up of pressure spring, controlling mechanism, fastening annex, needle value etc., it is characterized in that modulating valve top is piston/cylinder 9, the bottom is an aciculiform valve body 19, two-part pass through the screwed connection on piston pulling rod 2 and the aciculiform valve rod 15 up and down, and fastening by fastening annex (1,7,8,10); Piston pulling rod 2 overcoats have hollow stem shape pressure cap 3, and there are packing 11 and packing pressure cap 12 in its upper end; Lengthening cylinder body 6 is arranged at the bottom of piston/cylinder 9, and the lower end of lengthening cylinder body 6 is connected to spring adjusting nut 4, between spring adjusting nut 4 and the hollow shaft-like pressure cap 3 pressure spring 5 is arranged; There is the aperture that communicates tip, aciculiform valve rod 15 bottoms and side.
Advantage of the present utility model is easy for installation, regulates flexibly, and boiler pressure control is reliable and stable, the modern management that helps producing.
Fig. 1 is the utility model structure sectional view.
Below in conjunction with accompanying drawing structure of the present utility model and working principle are described further.
The utility model is the automatic control that realizes boiler pressure by the decrement of regulating pressure spring 5.Pass through the screwed connection on piston pulling rod 2 and the aciculiform valve rod 15 between its upper piston cylinder body 9 and the bottom aciculiform valve body 19, and utilize fastening annex (1,7,8,10) location fastening.Sealing between piston/cylinder 9 and the piston pulling rod 2 realizes by packing 11 and packing pressure cap 12.Hollow shaft-like pressure cap 3 is sleeved on piston pulling rod 2 outsides, between hollow shaft-like pressure cap 3 and spring adjusting nut 4 pressure spring 5 is housed.There is tank filler sleeve sealing nut 13 piston/cylinder 9 upper ends.Piston pulling rod 2 has valve rod back of the body cap 14 with aciculiform valve rod 15 joints.There are needle value packing pressure cap 16, gland 17 and needle value packing 18 in needle value valve body 19 upper ends.Top and side at aciculiform valve rod 15 are drilled with the aperture that communicates.When the utility model is installed, its upper interface is linked to each other with pressure source on the boiler, needle value high end interface in bottom links to each other with gas supply line, and low side links to each other with the boiler nozzles.Install, during ignition of the boiler, regulate aciculiform valve rod 15, make its seat on needle value valve body 19, the aperture that only stay aciculiform valve rod 15 tops this moment is an air-flow path, the valve of needle value upstream on the pipeline is slightly opened, allow air communication cross the little hole path of needle value, and carry out ignition start by ignition of the boiler start-up function rules, and slowly open whole control valves, this moment, flare was still little, regulate needle value again, make it to move up and down, the flare length until reaching regulation tightens up the pressure cap on its valve rod.When boiler pressure reaches specified value, adjust the decrement of pressure springs by adjusting nut 4, begin to move down get final product to valve rod, boiler pressure, pressure fixing valve, air demand will be set up a self-regulating balance sysmte at this moment.
Claims (1)
1. boiler level pressure automatic regulating valve, mainly form by pressure spring, controlling mechanism, fastening annex, needle value etc., it is characterized in that modulating valve top is piston/cylinder (9), the bottom is needle value valve body (19), two-part pass through the screwed connection on piston pulling rod (2) and the aciculiform valve rod (15) up and down, and fastening by fastening annex (1,7,8,10); Piston pulling rod (2) overcoat has hollow stem shape pressure cap (3), and there are packing (11) and packing pressure cap (12) in its upper end; Lengthening cylinder body (6) is arranged at the bottom of piston/cylinder (9), and the lower end of lengthening cylinder body (6) is connected to spring adjusting nut (4), between spring adjusting nut (4) and the hollow shaft-like pressure cap (3) pressure spring (5) is arranged; There is the aperture that communicates tip, aciculiform valve rod (15) bottom and side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230778 CN2318474Y (en) | 1997-12-31 | 1997-12-31 | Boiler constant-pressure automatic regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97230778 CN2318474Y (en) | 1997-12-31 | 1997-12-31 | Boiler constant-pressure automatic regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2318474Y true CN2318474Y (en) | 1999-05-12 |
Family
ID=33943192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97230778 Expired - Fee Related CN2318474Y (en) | 1997-12-31 | 1997-12-31 | Boiler constant-pressure automatic regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2318474Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588636A (en) * | 2012-03-17 | 2012-07-18 | 鞍钢集团矿业公司 | Heat load regulating device for boiler safety valve and regulating method thereof |
| CN107366765A (en) * | 2017-09-15 | 2017-11-21 | 张家港保税区通勤精密机械有限公司 | A kind of explosion relief valve |
-
1997
- 1997-12-31 CN CN 97230778 patent/CN2318474Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588636A (en) * | 2012-03-17 | 2012-07-18 | 鞍钢集团矿业公司 | Heat load regulating device for boiler safety valve and regulating method thereof |
| CN102588636B (en) * | 2012-03-17 | 2013-07-10 | 鞍钢集团矿业公司 | Heat load regulating device for boiler safety valve and regulating method thereof |
| CN107366765A (en) * | 2017-09-15 | 2017-11-21 | 张家港保税区通勤精密机械有限公司 | A kind of explosion relief 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 |