CN211820901U - Generator oil hydrogen differential pressure valve - Google Patents
Generator oil hydrogen differential pressure valve Download PDFInfo
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- CN211820901U CN211820901U CN202020236886.0U CN202020236886U CN211820901U CN 211820901 U CN211820901 U CN 211820901U CN 202020236886 U CN202020236886 U CN 202020236886U CN 211820901 U CN211820901 U CN 211820901U
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Abstract
The utility model provides a generator oil hydrogen differential pressure valve, including valve casing and valve rod, the valve casing lower extreme is provided with oil inlet and oil-out, passageway between oil inlet and the oil-out forms the oil duct, valve casing upper end top-down is provided with first pressure chamber and second pressure chamber, first pressure chamber passes through the spacer with the second pressure chamber and separates, first pressure chamber and cooling air supply intercommunication, second pressure chamber and sealed oil source intercommunication, install in the valve casing middle part through the elastic component at the valve rod middle part, the one end of valve rod stretches into within the second pressure chamber, when the elastic component extension, the valve rod other end enables the oil duct and cuts. Adopt the technical scheme of the utility model, when sealed oil source pressure is greater than cooling air source pressure, the oil duct switches on, when cooling air source pressure is greater than sealed oil source pressure, then can make the valve rod action make the oil duct cut, the oil duct stops the fuel feeding, has guaranteed whole generator system's operation safety, the utility model has the advantages of simple structure, convenient operation, safe and reliable.
Description
Technical Field
The utility model belongs to the technical field of the generator auxiliary device, especially, relate to a generator oil hydrogen differential pressure valve.
Background
At present, large generators in China are cooled by hydrogen in the time operation process, the hydrogen is flammable and explosive gas, once the hydrogen leaks in the conveying process, the danger is quite large, and adverse consequences are caused, therefore, in order to prevent the hydrogen from overflowing, the pressure of the hydrogen must be smaller than 84kPa, the sealing oil pressure must be correspondingly kept to be larger than 84kPa, however, when a generator system operates, various disturbance factors from the external environment can cause the hydrogen pressure to stir, once the pressure fluctuation range of the hydrogen exceeds the sealing oil pressure, the hydrogen can leak, and the operation safety of the generator is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a generator oil hydrogen differential pressure valve.
The utility model discloses a following technical scheme can realize.
The utility model provides a generator oil hydrogen differential pressure valve, including valve casing and valve rod, the valve casing lower extreme is provided with oil inlet and oil-out, passageway between oil inlet and the oil-out forms the oil duct, valve casing upper end top-down is provided with first pressure chamber and second pressure chamber, first pressure chamber passes through the spacer with the second pressure chamber and separates, first pressure chamber and cooling air supply intercommunication, second pressure chamber and sealed oil source intercommunication, the valve rod middle part pass through the elastic component install in the valve casing middle part, the one end of valve rod stretches into within the second pressure chamber, work as when the elastic component extends, the valve rod other end can make the oil duct cuts.
One end of the valve rod extending into the second pressure chamber is in contact with the diaphragm.
The sealing oil source pressure is greater than the cooling air source pressure.
The cooling gas source pressure is less than 84 kPa.
The cooling gas source is hydrogen.
The spacer is made of a corrugated pipe.
The elastic piece is a cylindrical spiral compression spring.
The valve stem central axis is arranged along a vertical direction.
And flange plates are arranged at the oil inlet and the oil outlet.
The beneficial effects of the utility model reside in that: adopt the technical scheme of the utility model, when the normal operating of generator system, sealed oil source pressure is greater than cooling air source pressure, and cooling air source pressure is less than 84kPa, crosses the oil duct and switches on, can be for the normal fuel feeding of generator system, and when cooling air source pressure is greater than sealed oil source pressure, then under cooling air source's pressure effect, the spacer produces deformation, will make the valve rod action make the oil duct cut, cross the oil duct and stop the fuel feeding, guaranteed whole generator system's operation safety, prevent that cooling air source pressure range from fluctuating too greatly to cause the influence to system safety, the utility model has the advantages of simple structure, low in manufacturing cost, convenient operation, safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic diagram of the present invention.
In the figure: 1-a valve shell, 2-a valve rod, 3-a spacer, 4-an elastic part, 11-an oil inlet, 12-an oil outlet, 13-an oil passage, 14-a first pressure chamber and 15-a second pressure chamber.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As fig. 1, fig. 2 shows, the utility model provides a generator oil hydrogen differential pressure valve, including valve casing 1 and valve rod 2, 1 lower extreme of valve casing is provided with oil inlet 11 and oil-out 12, passageway between oil inlet 11 and the oil-out 12 forms oil duct 13, 1 upper end top-down of valve casing is provided with first pressure chamber 14 and second pressure chamber 15, first pressure chamber 14 passes through spacer 3 with second pressure chamber 15 and separates, first pressure chamber 14 and cooling air supply intercommunication, second pressure chamber 15 and sealed oil source intercommunication, install in 1 middle part of valve casing through elastic component 4 in the middle part of valve rod 2, the one end of valve rod 2 is stretched into within second pressure chamber 15, when elastic component 4 elongates, the 2 other ends of valve rod can make oil duct 13 cut.
Further, the end of the valve stem 2 extending into the second pressure chamber 15 is in contact with the diaphragm 3. Preferably, the seal oil source pressure is greater than the cooling air source pressure. The cooling gas source pressure is less than 84 kPa. The cooling gas source is hydrogen.
In addition, the spacer 3 is preferably made of a corrugated tube. The elastic member 4 is a cylindrical helical compression spring. The valve stem 2 central axis is arranged in the vertical direction. The oil inlet 11 and the oil outlet 12 are both provided with flange plates.
Adopt the technical scheme of the utility model, when the normal operating of generator system, sealed oil source pressure is greater than cooling air source pressure, and cooling air source pressure is less than 84kPa, crosses the oil duct and switches on, can be for the normal fuel feeding of generator system, and when cooling air source pressure is greater than sealed oil source pressure, then under cooling air source's pressure effect, the spacer produces deformation, will make the valve rod action make the oil duct cut, cross the oil duct and stop the fuel feeding, guaranteed whole generator system's operation safety, prevent that cooling air source pressure range from fluctuating too greatly to cause the influence to system safety, the utility model has the advantages of simple structure, low in manufacturing cost, convenient operation, safe and reliable.
Claims (9)
1. The utility model provides a generator oil hydrogen differential pressure valve which characterized in that: comprises a valve casing (1) and a valve rod (2), wherein the lower end of the valve casing (1) is provided with an oil inlet (11) and an oil outlet (12), a channel between the oil inlet (11) and the oil outlet (12) forms an oil passage (13), a first pressure chamber (14) and a second pressure chamber (15) are arranged at the upper end of the valve casing (1) from top to bottom, the first pressure chamber (14) is separated from the second pressure chamber (15) by a diaphragm (3), the first pressure chamber (14) is communicated with a cooling air source, the second pressure chamber (15) is communicated with a sealing oil source, the middle part of the valve rod (2) is arranged at the middle part of the valve casing (1) through an elastic part (4), one end of the valve rod (2) extends into the second pressure chamber (15), when the elastic piece (4) extends, the other end of the valve rod (2) can cut off the oil passage (13).
2. The generator oil hydrogen differential pressure valve of claim 1, wherein: one end of the valve rod (2) extending into the second pressure chamber (15) is in contact with the spacer (3).
3. The generator oil hydrogen differential pressure valve of claim 1, wherein: the sealing oil source pressure is greater than the cooling air source pressure.
4. The generator oil hydrogen differential pressure valve of claim 1, wherein: the cooling gas source pressure is less than 84 kPa.
5. The generator oil hydrogen differential pressure valve of claim 1, wherein: the cooling gas source is hydrogen.
6. The generator oil hydrogen differential pressure valve of claim 1, wherein: the spacer (3) is made of a corrugated pipe.
7. The generator oil hydrogen differential pressure valve of claim 1, wherein: the elastic piece (4) is a cylindrical spiral compression spring.
8. The generator oil hydrogen differential pressure valve of claim 1, wherein: the central axis of the valve rod (2) is arranged along the vertical direction.
9. The generator oil hydrogen differential pressure valve of claim 1, wherein: and flange plates are arranged at the oil inlet (11) and the oil outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020236886.0U CN211820901U (en) | 2020-03-02 | 2020-03-02 | Generator oil hydrogen differential pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020236886.0U CN211820901U (en) | 2020-03-02 | 2020-03-02 | Generator oil hydrogen differential pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211820901U true CN211820901U (en) | 2020-10-30 |
Family
ID=72997012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020236886.0U Active CN211820901U (en) | 2020-03-02 | 2020-03-02 | Generator oil hydrogen differential pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211820901U (en) |
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2020
- 2020-03-02 CN CN202020236886.0U patent/CN211820901U/en active Active
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